diff --git a/glusterfs/server/cluster.yml b/glusterfs/server/cluster.yml
index 16453c9..f7c520e 100644
--- a/glusterfs/server/cluster.yml
+++ b/glusterfs/server/cluster.yml
@@ -8,6 +8,7 @@
       iptables:
         enabled: false
     server:
+      role: ${_param:glusterfs_node_role}
       peers:
       - ${_param:cluster_node01_address}
       - ${_param:cluster_node02_address}
diff --git a/jenkins/client/job/k8s-test/init.yml b/jenkins/client/job/k8s-test/init.yml
index c26bfce..537cd3c 100644
--- a/jenkins/client/job/k8s-test/init.yml
+++ b/jenkins/client/job/k8s-test/init.yml
@@ -5,4 +5,6 @@
 - system.jenkins.client.job.k8s-test.mcp-k8s-dashboard-merge-pipeline
 - system.jenkins.client.job.k8s-test.mcp-k8s-metallb-test-pipeline
 - system.jenkins.client.job.k8s-test.mcp-k8s-metallb-merge-pipeline
+- system.jenkins.client.job.k8s-test.mcp-k8s-coredns-test-pipeline
+- system.jenkins.client.job.k8s-test.mcp-k8s-coredns-merge-pipeline
 - system.jenkins.client.job.k8s-test.mcp-k8s-formula-test-pipeline
diff --git a/jenkins/client/job/k8s-test/mcp-k8s-coredns-merge-pipeline.yml b/jenkins/client/job/k8s-test/mcp-k8s-coredns-merge-pipeline.yml
new file mode 100644
index 0000000..10fe045
--- /dev/null
+++ b/jenkins/client/job/k8s-test/mcp-k8s-coredns-merge-pipeline.yml
@@ -0,0 +1,43 @@
+parameters:
+  _param:
+    mcp_docker_registry: 'docker-dev-local.docker.mirantis.net'
+    mcp_prod_docker_registry: 'docker-prod-local.docker.mirantis.net'
+  jenkins:
+    client:
+      job:
+        mcp_k8s_coredns_merge_pipeline:
+          type: workflow-scm
+          name: mcp-k8s-coredns-merge-pipeline
+          display_name: "CoreDNS merge pipeline"
+          discard:
+            build:
+              keep_num: 20
+          concurrent: false
+          scm:
+            type: git
+            url: "${_param:jenkins_gerrit_url}/kubernetes-ci/kubernetes-pipelines"
+            credentials: "gerrit"
+            script: pipelines/mcp-k8s-coredns-pipeline.groovy
+          trigger:
+            gerrit:
+              project:
+                kubernetes/coredns:
+                  branches:
+                    - compare_type: "ANT"
+                      name: "**mcp**"
+              message:
+                build_successful: "Build successful"
+                build_unstable: "Build unstable"
+                build_failure: "Build failed"
+              event:
+                change:
+                  - merged
+          param:
+            KUBE_DOCKER_REGISTRY:
+              type: string
+              default: ${_param:mcp_docker_registry}
+              description: 'Docker registry for binaries and images'
+            KUBE_PROD_DOCKER_REGISTRY:
+              type: string
+              default: ${_param:mcp_prod_docker_registry}
+              description: 'Prod docker registry for binaries and images'
diff --git a/jenkins/client/job/k8s-test/mcp-k8s-coredns-test-pipeline.yml b/jenkins/client/job/k8s-test/mcp-k8s-coredns-test-pipeline.yml
new file mode 100644
index 0000000..1f0e190
--- /dev/null
+++ b/jenkins/client/job/k8s-test/mcp-k8s-coredns-test-pipeline.yml
@@ -0,0 +1,48 @@
+parameters:
+  _param:
+    mcp_docker_registry: 'docker-dev-local.docker.mirantis.net'
+  jenkins:
+    client:
+      job:
+        mcp_k8s_coredns_test_pipeline:
+          type: workflow-scm
+          name: mcp-k8s-coredns-test-pipeline
+          display_name: "CoreDNS tests pipeline"
+          discard:
+            build:
+              keep_num: 50
+          concurrent: true
+          scm:
+            type: git
+            url: "${_param:jenkins_gerrit_url}/kubernetes-ci/kubernetes-pipelines"
+            credentials: "gerrit"
+            script: pipelines/mcp-k8s-coredns-pipeline.groovy
+          trigger:
+            gerrit:
+              project:
+                kubernetes/coredns:
+                  branches:
+                    - compare_type: "ANT"
+                      name: "**"
+              message:
+                build_successful: "Build successful"
+                build_unstable: "Build unstable"
+                build_failure: "Build failed"
+              event:
+                patchset:
+                  - created:
+                      excludeDrafts: false
+                      excludeTrivialRebase: false
+                      excludeNoCodeChange: false
+                comment:
+                  - addedContains:
+                      commentAddedCommentContains: '(recheck|reverify)'
+              override-votes:
+                gerritBuildUnstableVerifiedValue: 1
+                gerritBuildUnstableCodeReviewValue: 1
+          param:
+            KUBE_DOCKER_REGISTRY:
+              type: string
+              default: ${_param:mcp_docker_registry}
+              description: 'Docker registry for binaries and images'
+
diff --git a/reclass/storage/system/cicd_control_cluster.yml b/reclass/storage/system/cicd_control_cluster.yml
index bc31944..34f0de1 100644
--- a/reclass/storage/system/cicd_control_cluster.yml
+++ b/reclass/storage/system/cicd_control_cluster.yml
@@ -18,6 +18,7 @@
             single_address: ${_param:cicd_control_node01_address}
             keepalived_vip_priority: 103
             cicd_database_id: 1
+            glusterfs_node_role: primary
         cicd_control_node02:
           name: ${_param:cicd_control_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -29,6 +30,7 @@
             single_address: ${_param:cicd_control_node02_address}
             keepalived_vip_priority: 102
             cicd_database_id: 2
+            glusterfs_node_role: secondary
         cicd_control_node03:
           name: ${_param:cicd_control_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -40,3 +42,4 @@
             single_address: ${_param:cicd_control_node03_address}
             keepalived_vip_priority: 101
             cicd_database_id: 3
+            glusterfs_node_role: secondary
diff --git a/reclass/storage/system/openstack_control_cluster.yml b/reclass/storage/system/openstack_control_cluster.yml
index e05b3e9..cf21437 100644
--- a/reclass/storage/system/openstack_control_cluster.yml
+++ b/reclass/storage/system/openstack_control_cluster.yml
@@ -20,6 +20,7 @@
             opencontrail_database_id: 1
             rabbitmq_cluster_role: master
             openstack_node_role: primary
+            glusterfs_node_role: primary
         openstack_control_node02:
           name: ${_param:openstack_control_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -33,6 +34,7 @@
             opencontrail_database_id: 2
             rabbitmq_cluster_role: slave
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
         openstack_control_node03:
           name: ${_param:openstack_control_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -46,3 +48,4 @@
             opencontrail_database_id: 3
             rabbitmq_cluster_role: slave
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
diff --git a/reclass/storage/system/openstack_control_large.yml b/reclass/storage/system/openstack_control_large.yml
index 4ad2e90..f02b24c 100644
--- a/reclass/storage/system/openstack_control_large.yml
+++ b/reclass/storage/system/openstack_control_large.yml
@@ -20,6 +20,7 @@
             single_address: ${_param:openstack_control_node01_address}
             keepalived_vip_priority: 105
             openstack_node_role: primary
+            glusterfs_node_role: primary
         openstack_control_node02:
           name: ${_param:openstack_control_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -31,6 +32,7 @@
             single_address: ${_param:openstack_control_node02_address}
             keepalived_vip_priority: 104
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
         openstack_control_node03:
           name: ${_param:openstack_control_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -42,6 +44,7 @@
             single_address: ${_param:openstack_control_node03_address}
             keepalived_vip_priority: 103
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
         openstack_control_node04:
           name: ${_param:openstack_control_node04_hostname}
           domain: ${_param:cluster_domain}
@@ -53,6 +56,7 @@
             single_address: ${_param:openstack_control_node04_address}
             keepalived_vip_priority: 102
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
         openstack_control_node05:
           name: ${_param:openstack_control_node05_hostname}
           domain: ${_param:cluster_domain}
@@ -64,3 +68,4 @@
             single_address: ${_param:openstack_control_node05_address}
             keepalived_vip_priority: 101
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
diff --git a/reclass/storage/system/openstack_control_upgrade_single.yml b/reclass/storage/system/openstack_control_upgrade_single.yml
index b00cc81..a48c9a3 100644
--- a/reclass/storage/system/openstack_control_upgrade_single.yml
+++ b/reclass/storage/system/openstack_control_upgrade_single.yml
@@ -15,3 +15,4 @@
             linux_system_codename: ${_param:openstack_upgrade_system_codename}
             single_address: ${_param:openstack_upgrade_node01_address}
             openstack_node_role: primary
+            glusterfs_node_role: primary
diff --git a/reclass/storage/system/openstack_telemetry_cluster.yml b/reclass/storage/system/openstack_telemetry_cluster.yml
index 4c688a8..198c356 100644
--- a/reclass/storage/system/openstack_telemetry_cluster.yml
+++ b/reclass/storage/system/openstack_telemetry_cluster.yml
@@ -18,6 +18,7 @@
             single_address: ${_param:openstack_telemetry_node01_address}
             keepalived_vip_priority: 103
             openstack_node_role: primary
+            glusterfs_node_role: primary
             ceilometer_create_gnocchi_resources: true
             redis_cluster_role: 'master'
         openstack_telemetry_node02:
@@ -31,6 +32,7 @@
             single_address: ${_param:openstack_telemetry_node02_address}
             keepalived_vip_priority: 102
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
             redis_cluster_role: 'slave'
         openstack_telemetry_node03:
           name: ${_param:openstack_telemetry_node03_hostname}
@@ -43,4 +45,5 @@
             single_address: ${_param:openstack_telemetry_node03_address}
             keepalived_vip_priority: 101
             openstack_node_role: secondary
+            glusterfs_node_role: secondary
             redis_cluster_role: 'slave'
diff --git a/reclass/storage/system/oss_cluster.yml b/reclass/storage/system/oss_cluster.yml
index 71d42ce..784d8a7 100644
--- a/reclass/storage/system/oss_cluster.yml
+++ b/reclass/storage/system/oss_cluster.yml
@@ -19,6 +19,7 @@
             linux_system_codename: ${_param:oss_system_codename}
             single_address: ${_param:oss_node01_address}
             keepalived_vip_priority: 103
+            glusterfs_node_role: primary
         stacklight_server_node02:
           name: ${_param:oss_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -30,6 +31,7 @@
             linux_system_codename: ${_param:oss_system_codename}
             single_address: ${_param:oss_node02_address}
             keepalived_vip_priority: 102
+            glusterfs_node_role: secondary
         stacklight_server_node03:
           name: ${_param:oss_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -41,3 +43,4 @@
             linux_system_codename: ${_param:oss_system_codename}
             single_address: ${_param:oss_node03_address}
             keepalived_vip_priority: 101
+            glusterfs_node_role: secondary
diff --git a/reclass/storage/system/physical_control_cluster.yml b/reclass/storage/system/physical_control_cluster.yml
index ebd0eb0..1621a4c 100644
--- a/reclass/storage/system/physical_control_cluster.yml
+++ b/reclass/storage/system/physical_control_cluster.yml
@@ -32,6 +32,7 @@
             deploy_address: ${_param:infra_kvm_node01_deploy_address}
             public_address: ${_param:infra_kvm_node01_public_address}
             storage_address: ${_param:infra_kvm_node01_storage_address}
+            glusterfs_node_role: primary
         infra_kvm_node02:
           name: ${_param:infra_kvm_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -44,6 +45,7 @@
             deploy_address: ${_param:infra_kvm_node02_deploy_address}
             public_address: ${_param:infra_kvm_node02_public_address}
             storage_address: ${_param:infra_kvm_node02_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node03:
           name: ${_param:infra_kvm_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -56,3 +58,4 @@
             deploy_address: ${_param:infra_kvm_node03_deploy_address}
             public_address: ${_param:infra_kvm_node03_public_address}
             storage_address: ${_param:infra_kvm_node03_storage_address}
+            glusterfs_node_role: secondary
diff --git a/reclass/storage/system/physical_control_full.yml b/reclass/storage/system/physical_control_full.yml
index 1bdd345..7c3b030 100644
--- a/reclass/storage/system/physical_control_full.yml
+++ b/reclass/storage/system/physical_control_full.yml
@@ -57,6 +57,7 @@
             deploy_address: ${_param:infra_kvm_node01_deploy_address}
             public_address: ${_param:infra_kvm_node01_public_address}
             storage_address: ${_param:infra_kvm_node01_storage_address}
+            glusterfs_node_role: primary
         infra_kvm_node02:
           name: ${_param:infra_kvm_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -69,6 +70,7 @@
             deploy_address: ${_param:infra_kvm_node02_deploy_address}
             public_address: ${_param:infra_kvm_node02_public_address}
             storage_address: ${_param:infra_kvm_node02_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node03:
           name: ${_param:infra_kvm_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -81,6 +83,7 @@
             deploy_address: ${_param:infra_kvm_node03_deploy_address}
             public_address: ${_param:infra_kvm_node03_public_address}
             storage_address: ${_param:infra_kvm_node03_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node04:
           name: ${_param:infra_kvm_node04_hostname}
           domain: ${_param:cluster_domain}
diff --git a/reclass/storage/system/physical_control_large.yml b/reclass/storage/system/physical_control_large.yml
index 1070f47..93cc565 100644
--- a/reclass/storage/system/physical_control_large.yml
+++ b/reclass/storage/system/physical_control_large.yml
@@ -81,6 +81,7 @@
             deploy_address: ${_param:infra_kvm_node01_deploy_address}
             public_address: ${_param:infra_kvm_node01_public_address}
             storage_address: ${_param:infra_kvm_node01_storage_address}
+            glusterfs_node_role: primary
         infra_kvm_node02:
           name: ${_param:infra_kvm_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -93,6 +94,7 @@
             deploy_address: ${_param:infra_kvm_node02_deploy_address}
             public_address: ${_param:infra_kvm_node02_public_address}
             storage_address: ${_param:infra_kvm_node02_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node03:
           name: ${_param:infra_kvm_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -105,6 +107,7 @@
             deploy_address: ${_param:infra_kvm_node03_deploy_address}
             public_address: ${_param:infra_kvm_node03_public_address}
             storage_address: ${_param:infra_kvm_node03_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node04:
           name: ${_param:infra_kvm_node04_hostname}
           domain: ${_param:cluster_domain}
diff --git a/reclass/storage/system/physical_control_medium.yml b/reclass/storage/system/physical_control_medium.yml
index 5ad7d24..70d7313 100644
--- a/reclass/storage/system/physical_control_medium.yml
+++ b/reclass/storage/system/physical_control_medium.yml
@@ -69,6 +69,7 @@
             deploy_address: ${_param:infra_kvm_node01_deploy_address}
             public_address: ${_param:infra_kvm_node01_public_address}
             storage_address: ${_param:infra_kvm_node01_storage_address}
+            glusterfs_node_role: primary
         infra_kvm_node02:
           name: ${_param:infra_kvm_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -81,6 +82,7 @@
             deploy_address: ${_param:infra_kvm_node02_deploy_address}
             public_address: ${_param:infra_kvm_node02_public_address}
             storage_address: ${_param:infra_kvm_node02_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node03:
           name: ${_param:infra_kvm_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -93,6 +95,7 @@
             deploy_address: ${_param:infra_kvm_node03_deploy_address}
             public_address: ${_param:infra_kvm_node03_public_address}
             storage_address: ${_param:infra_kvm_node03_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node04:
           name: ${_param:infra_kvm_node04_hostname}
           domain: ${_param:cluster_domain}
diff --git a/reclass/storage/system/physical_control_small.yml b/reclass/storage/system/physical_control_small.yml
index 4ce3759..5727dd6 100644
--- a/reclass/storage/system/physical_control_small.yml
+++ b/reclass/storage/system/physical_control_small.yml
@@ -45,6 +45,7 @@
             deploy_address: ${_param:infra_kvm_node01_deploy_address}
             public_address: ${_param:infra_kvm_node01_public_address}
             storage_address: ${_param:infra_kvm_node01_storage_address}
+            glusterfs_node_role: primary
         infra_kvm_node02:
           name: ${_param:infra_kvm_node02_hostname}
           domain: ${_param:cluster_domain}
@@ -57,6 +58,7 @@
             deploy_address: ${_param:infra_kvm_node02_deploy_address}
             public_address: ${_param:infra_kvm_node02_public_address}
             storage_address: ${_param:infra_kvm_node02_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node03:
           name: ${_param:infra_kvm_node03_hostname}
           domain: ${_param:cluster_domain}
@@ -69,6 +71,7 @@
             deploy_address: ${_param:infra_kvm_node03_deploy_address}
             public_address: ${_param:infra_kvm_node03_public_address}
             storage_address: ${_param:infra_kvm_node03_storage_address}
+            glusterfs_node_role: secondary
         infra_kvm_node04:
           name: ${_param:infra_kvm_node04_hostname}
           domain: ${_param:cluster_domain}
diff --git a/salt/control/cluster/ceph_mon_cluster.yml b/salt/control/cluster/ceph_mon_cluster.yml
index bccec01..39cee29 100644
--- a/salt/control/cluster/ceph_mon_cluster.yml
+++ b/salt/control/cluster/ceph_mon_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    ceph_mon_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:ceph_mon_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:ceph_mon_backend_image}
               size: ceph.mon
             cmn02:
               name: ${_param:ceph_mon_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:ceph_mon_backend_image}
               size: ceph.mon
             cmn03:
               name: ${_param:ceph_mon_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
-              size: ceph.mon
\ No newline at end of file
+              backend: ${_param:ceph_mon_backend_image}
+              size: ceph.mon
diff --git a/salt/control/cluster/ceph_rgw_cluster.yml b/salt/control/cluster/ceph_rgw_cluster.yml
index 6f24819..e0109db 100644
--- a/salt/control/cluster/ceph_rgw_cluster.yml
+++ b/salt/control/cluster/ceph_rgw_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    ceph_rgw_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:ceph_rgw_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:ceph_rgw_backend_image}
               size: ceph.rgw
             rgw02:
               name: ${_param:ceph_rgw_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:ceph_rgw_backend_image}
               size: ceph.rgw
             rgw03:
               name: ${_param:ceph_rgw_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
-              size: ceph.rgw
\ No newline at end of file
+              backend: ${_param:ceph_rgw_backend_image}
+              size: ceph.rgw
diff --git a/salt/control/cluster/cicd_control_cluster.yml b/salt/control/cluster/cicd_control_cluster.yml
index 82366a8..33945e2 100644
--- a/salt/control/cluster/cicd_control_cluster.yml
+++ b/salt/control/cluster/cicd_control_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    cicd_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:cicd_control_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               size: cicd.control
             cid02:
               name: ${_param:cicd_control_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               size: cicd.control
             cid03:
               name: ${_param:cicd_control_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               size: cicd.control
diff --git a/salt/control/cluster/infra_idm_cluster.yml b/salt/control/cluster/infra_idm_cluster.yml
index ff135a1..f322910 100644
--- a/salt/control/cluster/infra_idm_cluster.yml
+++ b/salt/control/cluster/infra_idm_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_centos7_image_backend: /var/lib/libvirt/images/backends/centos7.qcow2
+    infra_idm_backend_image: ${_param:salt_control_centos7_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:infra_idm_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_centos7_image}
+              backend: ${_param:infra_idm_backend_image}
               size: infra.idm
             idm02:
               name: ${_param:infra_idm_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_centos7_image}
+              backend: ${_param:infra_idm_backend_image}
               size: infra.idm
             idm03:
               name: ${_param:infra_idm_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_centos7_image}
+              backend: ${_param:infra_idm_backend_image}
               size: infra.idm
diff --git a/salt/control/cluster/infra_integration_single.yml b/salt/control/cluster/infra_integration_single.yml
index 66de895..0c774ab 100644
--- a/salt/control/cluster/infra_integration_single.yml
+++ b/salt/control/cluster/infra_integration_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    infra_integration_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:cicd_control_node01_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:infra_integration_backend_image}
               size: infra.integration
diff --git a/salt/control/cluster/infra_maas_single.yml b/salt/control/cluster/infra_maas_single.yml
index d8675e8..9bd4fe2 100644
--- a/salt/control/cluster/infra_maas_single.yml
+++ b/salt/control/cluster/infra_maas_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    infra_maas_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,5 +19,6 @@
               name: ${_param:infra_maas_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:infra_maas_backend_image}
               size: infra.maas
 
diff --git a/salt/control/cluster/infra_proxy_cluster.yml b/salt/control/cluster/infra_proxy_cluster.yml
index f3453ff..00c9679 100644
--- a/salt/control/cluster/infra_proxy_cluster.yml
+++ b/salt/control/cluster/infra_proxy_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    infra_proxy_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,9 +19,11 @@
               name: ${_param:openstack_proxy_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:infra_proxy_backend_image}
               size: infra.proxy
             prx02:
               name: ${_param:openstack_proxy_node01_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:infra_proxy_backend_image}
               size: infra.proxy
diff --git a/salt/control/cluster/infra_proxy_single.yml b/salt/control/cluster/infra_proxy_single.yml
index 7d092fa..483b2d4 100644
--- a/salt/control/cluster/infra_proxy_single.yml
+++ b/salt/control/cluster/infra_proxy_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    infra_proxy_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:openstack_proxy_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:infra_proxy_backend_image}
               size: infra.proxy
diff --git a/salt/control/cluster/infra_storage_single.yml b/salt/control/cluster/infra_storage_single.yml
index ca8ce26..b6c0a85 100644
--- a/salt/control/cluster/infra_storage_single.yml
+++ b/salt/control/cluster/infra_storage_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    infra_storage_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -15,4 +18,5 @@
             sto01:
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:infra_storage_backend_image}
               size: infra.storage
diff --git a/salt/control/cluster/infra_version_control_single.yml b/salt/control/cluster/infra_version_control_single.yml
index 10e01ab..d7e02d5 100644
--- a/salt/control/cluster/infra_version_control_single.yml
+++ b/salt/control/cluster/infra_version_control_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    infra_version_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -15,4 +18,5 @@
             git01:
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:infra_version_control_backend_image}
               size: infra.version_control
diff --git a/salt/control/cluster/kubernetes_control_cluster.yml b/salt/control/cluster/kubernetes_control_cluster.yml
index c3049ec..252ccbf 100644
--- a/salt/control/cluster/kubernetes_control_cluster.yml
+++ b/salt/control/cluster/kubernetes_control_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    kubernetes_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:kubernetes_control_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:kubernetes_control_backend_image}
               size: kubernetes.control
             ctl02:
               name: ${_param:kubernetes_control_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:kubernetes_control_backend_image}
               size: kubernetes.control
             ctl03:
               name: ${_param:kubernetes_control_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:kubernetes_control_backend_image}
               size: kubernetes.control
diff --git a/salt/control/cluster/kubernetes_proxy_cluster.yml b/salt/control/cluster/kubernetes_proxy_cluster.yml
index 379a333..0a47f39 100644
--- a/salt/control/cluster/kubernetes_proxy_cluster.yml
+++ b/salt/control/cluster/kubernetes_proxy_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    kubernetes_proxy_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,10 +19,12 @@
               name: ${_param:kubernetes_proxy_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:kubernetes_proxy_backend_image}
               size: kubernetes.proxy
             prx02:
               name: ${_param:kubernetes_proxy_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:kubernetes_proxy_backend_image}
               size: kubernetes.proxy
 
diff --git a/salt/control/cluster/opencontrail_analytics_cluster.yml b/salt/control/cluster/opencontrail_analytics_cluster.yml
index 37fb60a..b4e7b75 100644
--- a/salt/control/cluster/opencontrail_analytics_cluster.yml
+++ b/salt/control/cluster/opencontrail_analytics_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    opencontrail_analytics_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:opencontrail_analytics_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               size: opencontrail.analytics
             nal02:
               name: ${_param:opencontrail_analytics_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               size: opencontrail.analytics
             nal03:
               name: ${_param:opencontrail_analytics_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               size: opencontrail.analytics
diff --git a/salt/control/cluster/opencontrail_control_cluster.yml b/salt/control/cluster/opencontrail_control_cluster.yml
index 10ddf5e..9d2fbb9 100644
--- a/salt/control/cluster/opencontrail_control_cluster.yml
+++ b/salt/control/cluster/opencontrail_control_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    opencontrail_control_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:opencontrail_control_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:opencontrail_control_backend_image}
               size: opencontrail.control
             ntw02:
               name: ${_param:opencontrail_control_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:opencontrail_control_backend_image}
               size: opencontrail.control
             ntw03:
               name: ${_param:opencontrail_control_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:opencontrail_control_backend_image}
               size: opencontrail.control
diff --git a/salt/control/cluster/openstack_barbican_cluster.yml b/salt/control/cluster/openstack_barbican_cluster.yml
index cfa7ba6..b24c0fa 100644
--- a/salt/control/cluster/openstack_barbican_cluster.yml
+++ b/salt/control/cluster/openstack_barbican_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_barbican_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_barbican_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_barbican_backend_image}
               size: openstack.barbican
             kmn02:
               name: ${_param:openstack_barbican_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_barbican_backend_image}
               size: openstack.barbican
             kmn03:
               name: ${_param:openstack_barbican_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_barbican_backend_image}
               size: openstack.barbican
diff --git a/salt/control/cluster/openstack_baremetal_cluster.yml b/salt/control/cluster/openstack_baremetal_cluster.yml
index 4dd62e4..f166484 100644
--- a/salt/control/cluster/openstack_baremetal_cluster.yml
+++ b/salt/control/cluster/openstack_baremetal_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_baremetal_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_baremetal_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_baremetal_backend_image}
               size: openstack.baremetal
             bmt02:
               name: ${_param:openstack_baremetal_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_baremetal_backend_image}
               size: openstack.baremetal
             bmt03:
               name: ${_param:openstack_baremetal_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_baremetal_backend_image}
               size: openstack.baremetal
diff --git a/salt/control/cluster/openstack_baremetal_single.yml b/salt/control/cluster/openstack_baremetal_single.yml
index f0aa319..853f45e 100644
--- a/salt/control/cluster/openstack_baremetal_single.yml
+++ b/salt/control/cluster/openstack_baremetal_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_baremetal_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:openstack_baremetal_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_baremetal_backend_image}
               size: openstack.baremetal
diff --git a/salt/control/cluster/openstack_benchmark_single.yml b/salt/control/cluster/openstack_benchmark_single.yml
index ea10fc3..83c18f5 100644
--- a/salt/control/cluster/openstack_benchmark_single.yml
+++ b/salt/control/cluster/openstack_benchmark_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_benchmark_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:openstack_benchmark_node01_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_benchmark_backend_image}
               size: openstack.benchmark
diff --git a/salt/control/cluster/openstack_billing_single.yml b/salt/control/cluster/openstack_billing_single.yml
index f8dacf7..36f9824 100644
--- a/salt/control/cluster/openstack_billing_single.yml
+++ b/salt/control/cluster/openstack_billing_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_billing_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -15,4 +18,5 @@
             bil01:
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_billing_backend_image}
               size: openstack.control
diff --git a/salt/control/cluster/openstack_control_cluster.yml b/salt/control/cluster/openstack_control_cluster.yml
index f28a7d0..328cfd0 100644
--- a/salt/control/cluster/openstack_control_cluster.yml
+++ b/salt/control/cluster/openstack_control_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_control_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_control_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_control_backend_image}
               size: openstack.control
             ctl02:
               name: ${_param:openstack_control_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_control_backend_image}
               size: openstack.control
             ctl03:
               name: ${_param:openstack_control_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_control_backend_image}
               size: openstack.control
diff --git a/salt/control/cluster/openstack_database_cluster.yml b/salt/control/cluster/openstack_database_cluster.yml
index 2a00308..acbcc36 100644
--- a/salt/control/cluster/openstack_database_cluster.yml
+++ b/salt/control/cluster/openstack_database_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_database_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_database_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_database_backend_image}
               size: openstack.database
             dbs02:
               name: ${_param:openstack_database_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_database_backend_image}
               size: openstack.database
             dbs03:
               name: ${_param:openstack_database_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_database_backend_image}
               size: openstack.database
diff --git a/salt/control/cluster/openstack_dns_cluster.yml b/salt/control/cluster/openstack_dns_cluster.yml
index 7f1dbb8..6fcc546 100644
--- a/salt/control/cluster/openstack_dns_cluster.yml
+++ b/salt/control/cluster/openstack_dns_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_dns_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,9 +19,11 @@
               name: ${_param:openstack_dns_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_dns_backend_image}
               size: openstack.dns
             dns02:
               name: ${_param:openstack_dns_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_dns_backend_image}
               size: openstack.dns
diff --git a/salt/control/cluster/openstack_gateway_cluster.yml b/salt/control/cluster/openstack_gateway_cluster.yml
index 1a7e06b..8475004 100644
--- a/salt/control/cluster/openstack_gateway_cluster.yml
+++ b/salt/control/cluster/openstack_gateway_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_gateway_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_gateway_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               size: openstack.gateway
             gtw02:
               name: ${_param:openstack_gateway_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               size: openstack.gateway
             gtw03:
               name: ${_param:openstack_gateway_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               size: openstack.gateway
diff --git a/salt/control/cluster/openstack_gateway_single.yml b/salt/control/cluster/openstack_gateway_single.yml
index 801ee0c..e240d12 100644
--- a/salt/control/cluster/openstack_gateway_single.yml
+++ b/salt/control/cluster/openstack_gateway_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_gateway_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:openstack_gateway_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               size: openstack.gateway
diff --git a/salt/control/cluster/openstack_manila_cluster.yml b/salt/control/cluster/openstack_manila_cluster.yml
index feb1d4f..477d6ca 100644
--- a/salt/control/cluster/openstack_manila_cluster.yml
+++ b/salt/control/cluster/openstack_manila_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_manila_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_share_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_manila_backend_image}
               size: openstack.manila
             share02:
               name: ${_param:openstack_share_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_manila_backend_image}
               size: openstack.manila
             share03:
               name: ${_param:openstack_share_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_manila_backend_image}
               size: openstack.manila
diff --git a/salt/control/cluster/openstack_message_queue_cluster.yml b/salt/control/cluster/openstack_message_queue_cluster.yml
index cab5adb..f91faf6 100644
--- a/salt/control/cluster/openstack_message_queue_cluster.yml
+++ b/salt/control/cluster/openstack_message_queue_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_message_queue_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_message_queue_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               size: openstack.message_queue
             msg02:
               name: ${_param:openstack_message_queue_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               size: openstack.message_queue
             msg03:
               name: ${_param:openstack_message_queue_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               size: openstack.message_queue
diff --git a/salt/control/cluster/openstack_proxy_cluster.yml b/salt/control/cluster/openstack_proxy_cluster.yml
index 628dcd8..87a5176 100644
--- a/salt/control/cluster/openstack_proxy_cluster.yml
+++ b/salt/control/cluster/openstack_proxy_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_proxy_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,10 +19,12 @@
               name: ${_param:openstack_proxy_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_proxy_backend_image}
               size: openstack.proxy
             prx02:
               name: ${_param:openstack_proxy_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_proxy_backend_image}
               size: openstack.proxy
 
diff --git a/salt/control/cluster/openstack_proxy_single.yml b/salt/control/cluster/openstack_proxy_single.yml
index 8ad0baf..ca5c751 100644
--- a/salt/control/cluster/openstack_proxy_single.yml
+++ b/salt/control/cluster/openstack_proxy_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_proxy_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:openstack_proxy_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_proxy_backend_image}
               size: openstack.proxy
diff --git a/salt/control/cluster/openstack_telemetry_cluster.yml b/salt/control/cluster/openstack_telemetry_cluster.yml
index 633b984..bbf6fd1 100644
--- a/salt/control/cluster/openstack_telemetry_cluster.yml
+++ b/salt/control/cluster/openstack_telemetry_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_trusty_image_backend: /var/lib/libvirt/images/backends/trusty.qcow2
+    openstack_telemetry_backend_image: ${_param:salt_control_trusty_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:openstack_telemetry_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_telemetry_backend_image}
               size: openstack.telemetry
             mdb02:
               name: ${_param:openstack_telemetry_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_telemetry_backend_image}
               size: openstack.telemetry
             mdb03:
               name: ${_param:openstack_telemetry_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_trusty_image}
+              backend: ${_param:openstack_telemetry_backend_image}
               size: openstack.telemetry
diff --git a/salt/control/cluster/openstack_upgrade_single.yml b/salt/control/cluster/openstack_upgrade_single.yml
index 3189f3e..0b5e0fb 100644
--- a/salt/control/cluster/openstack_upgrade_single.yml
+++ b/salt/control/cluster/openstack_upgrade_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_upgrade_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -15,4 +18,5 @@
             upg01:
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_upgrade_backend_image}
               size: openstack.upgrade
diff --git a/salt/control/cluster/rsyslog_single.yml b/salt/control/cluster/rsyslog_single.yml
index 72e6c86..dd64869 100644
--- a/salt/control/cluster/rsyslog_single.yml
+++ b/salt/control/cluster/rsyslog_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    rsyslog_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:rsyslog_node01_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:rsyslog_backend_image}
               size: infra.rsyslog
diff --git a/salt/control/cluster/stacklight_log_cluster.yml b/salt/control/cluster/stacklight_log_cluster.yml
index e4c08b6..6d3dba9 100644
--- a/salt/control/cluster/stacklight_log_cluster.yml
+++ b/salt/control/cluster/stacklight_log_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_log_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:stacklight_log_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               size: stacklight.log
             log02:
               name: ${_param:stacklight_log_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               size: stacklight.log
             log03:
               name: ${_param:stacklight_log_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               size: stacklight.log
diff --git a/salt/control/cluster/stacklight_server_cluster.yml b/salt/control/cluster/stacklight_server_cluster.yml
index 6e7da61..8ab6a9d 100644
--- a/salt/control/cluster/stacklight_server_cluster.yml
+++ b/salt/control/cluster/stacklight_server_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_server_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:stacklight_monitor_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_server_backend_image}
               size: stacklight.server
             mon02:
               name: ${_param:stacklight_monitor_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_server_backend_image}
               size: stacklight.server
             mon03:
               name: ${_param:stacklight_monitor_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_server_backend_image}
               size: stacklight.server
diff --git a/salt/control/cluster/stacklight_telemetry_cluster.yml b/salt/control/cluster/stacklight_telemetry_cluster.yml
index 1b39b61..4a58a23 100644
--- a/salt/control/cluster/stacklight_telemetry_cluster.yml
+++ b/salt/control/cluster/stacklight_telemetry_cluster.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,14 +19,17 @@
               name: ${_param:stacklight_telemetry_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               size: stacklight.telemetry
             mtr02:
               name: ${_param:stacklight_telemetry_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               size: stacklight.telemetry
             mtr03:
               name: ${_param:stacklight_telemetry_node03_hostname}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               size: stacklight.telemetry
diff --git a/salt/control/cluster/stacklight_telemetry_single.yml b/salt/control/cluster/stacklight_telemetry_single.yml
index 81fd6fb..3012dc6 100644
--- a/salt/control/cluster/stacklight_telemetry_single.yml
+++ b/salt/control/cluster/stacklight_telemetry_single.yml
@@ -1,4 +1,7 @@
 parameters:
+  _param:
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       size:
@@ -16,4 +19,5 @@
               name: ${_param:stacklight_telemetry_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               size: stacklight.telemetry
diff --git a/salt/control/placement/cicd/compact.yml b/salt/control/placement/cicd/compact.yml
index 9bdf4a4..9f700f1 100644
--- a/salt/control/placement/cicd/compact.yml
+++ b/salt/control/placement/cicd/compact.yml
@@ -6,6 +6,8 @@
     cicd_control_node01_hostname: cid01
     cicd_control_node02_hostname: cid02
     cicd_control_node03_hostname: cid03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    cicd_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             cid01:
               name: ${_param:cicd_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid02:
               name: ${_param:cicd_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid03:
               name: ${_param:cicd_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: cicd.control
\ No newline at end of file
+              size: cicd.control
diff --git a/salt/control/placement/cicd/large.yml b/salt/control/placement/cicd/large.yml
index 9bdf4a4..9f700f1 100644
--- a/salt/control/placement/cicd/large.yml
+++ b/salt/control/placement/cicd/large.yml
@@ -6,6 +6,8 @@
     cicd_control_node01_hostname: cid01
     cicd_control_node02_hostname: cid02
     cicd_control_node03_hostname: cid03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    cicd_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             cid01:
               name: ${_param:cicd_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid02:
               name: ${_param:cicd_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid03:
               name: ${_param:cicd_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: cicd.control
\ No newline at end of file
+              size: cicd.control
diff --git a/salt/control/placement/cicd/medium.yml b/salt/control/placement/cicd/medium.yml
index 9bdf4a4..9f700f1 100644
--- a/salt/control/placement/cicd/medium.yml
+++ b/salt/control/placement/cicd/medium.yml
@@ -6,6 +6,8 @@
     cicd_control_node01_hostname: cid01
     cicd_control_node02_hostname: cid02
     cicd_control_node03_hostname: cid03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    cicd_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             cid01:
               name: ${_param:cicd_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid02:
               name: ${_param:cicd_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid03:
               name: ${_param:cicd_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: cicd.control
\ No newline at end of file
+              size: cicd.control
diff --git a/salt/control/placement/cicd/minimal.yml b/salt/control/placement/cicd/minimal.yml
index 9bdf4a4..9f700f1 100644
--- a/salt/control/placement/cicd/minimal.yml
+++ b/salt/control/placement/cicd/minimal.yml
@@ -6,6 +6,8 @@
     cicd_control_node01_hostname: cid01
     cicd_control_node02_hostname: cid02
     cicd_control_node03_hostname: cid03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    cicd_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             cid01:
               name: ${_param:cicd_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid02:
               name: ${_param:cicd_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid03:
               name: ${_param:cicd_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: cicd.control
\ No newline at end of file
+              size: cicd.control
diff --git a/salt/control/placement/cicd/small.yml b/salt/control/placement/cicd/small.yml
index 9bdf4a4..9f700f1 100644
--- a/salt/control/placement/cicd/small.yml
+++ b/salt/control/placement/cicd/small.yml
@@ -6,6 +6,8 @@
     cicd_control_node01_hostname: cid01
     cicd_control_node02_hostname: cid02
     cicd_control_node03_hostname: cid03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    cicd_control_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             cid01:
               name: ${_param:cicd_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid02:
               name: ${_param:cicd_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: cicd.control
             cid03:
               name: ${_param:cicd_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:cicd_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: cicd.control
\ No newline at end of file
+              size: cicd.control
diff --git a/salt/control/placement/opencontrail/compact.yml b/salt/control/placement/opencontrail/compact.yml
index a619956..584b65e 100644
--- a/salt/control/placement/opencontrail/compact.yml
+++ b/salt/control/placement/opencontrail/compact.yml
@@ -9,6 +9,9 @@
     opencontrail_analytics_node01_hostname: nal01
     opencontrail_analytics_node02_hostname: nal02
     opencontrail_analytics_node03_hostname: nal03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    opencontrail_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    opencontrail_analytics_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -17,30 +20,36 @@
             ntw01:
               name: ${_param:opencontrail_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw02:
               name: ${_param:opencontrail_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw03:
               name: ${_param:opencontrail_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             nal01:
               name: ${_param:opencontrail_analytics_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal02:
               name: ${_param:opencontrail_analytics_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal03:
               name: ${_param:opencontrail_analytics_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: opencontrail.analytics
\ No newline at end of file
+              size: opencontrail.analytics
diff --git a/salt/control/placement/opencontrail/large.yml b/salt/control/placement/opencontrail/large.yml
index 1aabd0d..d7e662c 100644
--- a/salt/control/placement/opencontrail/large.yml
+++ b/salt/control/placement/opencontrail/large.yml
@@ -9,6 +9,9 @@
     opencontrail_analytics_node01_hostname: nal01
     opencontrail_analytics_node02_hostname: nal02
     opencontrail_analytics_node03_hostname: nal03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    opencontrail_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    opencontrail_analytics_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -17,30 +20,36 @@
             ntw01:
               name: ${_param:opencontrail_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node10_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw02:
               name: ${_param:opencontrail_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node11_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw03:
               name: ${_param:opencontrail_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node12_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             nal01:
               name: ${_param:opencontrail_analytics_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node10_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal02:
               name: ${_param:opencontrail_analytics_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node11_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal03:
               name: ${_param:opencontrail_analytics_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node12_hostname}.${_param:cluster_domain}
-              size: opencontrail.analytics
\ No newline at end of file
+              size: opencontrail.analytics
diff --git a/salt/control/placement/opencontrail/medium.yml b/salt/control/placement/opencontrail/medium.yml
index dfc32f3..448cd23 100644
--- a/salt/control/placement/opencontrail/medium.yml
+++ b/salt/control/placement/opencontrail/medium.yml
@@ -9,6 +9,9 @@
     opencontrail_analytics_node01_hostname: nal01
     opencontrail_analytics_node02_hostname: nal02
     opencontrail_analytics_node03_hostname: nal03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    opencontrail_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    opencontrail_analytics_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -17,30 +20,36 @@
             ntw01:
               name: ${_param:opencontrail_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node07_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw02:
               name: ${_param:opencontrail_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node08_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw03:
               name: ${_param:opencontrail_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node09_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             nal01:
               name: ${_param:opencontrail_analytics_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node07_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal02:
               name: ${_param:opencontrail_analytics_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node08_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal03:
               name: ${_param:opencontrail_analytics_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node09_hostname}.${_param:cluster_domain}
-              size: opencontrail.analytics
\ No newline at end of file
+              size: opencontrail.analytics
diff --git a/salt/control/placement/opencontrail/minimal.yml b/salt/control/placement/opencontrail/minimal.yml
index a619956..584b65e 100644
--- a/salt/control/placement/opencontrail/minimal.yml
+++ b/salt/control/placement/opencontrail/minimal.yml
@@ -9,6 +9,9 @@
     opencontrail_analytics_node01_hostname: nal01
     opencontrail_analytics_node02_hostname: nal02
     opencontrail_analytics_node03_hostname: nal03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    opencontrail_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    opencontrail_analytics_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -17,30 +20,36 @@
             ntw01:
               name: ${_param:opencontrail_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw02:
               name: ${_param:opencontrail_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw03:
               name: ${_param:opencontrail_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             nal01:
               name: ${_param:opencontrail_analytics_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal02:
               name: ${_param:opencontrail_analytics_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal03:
               name: ${_param:opencontrail_analytics_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: opencontrail.analytics
\ No newline at end of file
+              size: opencontrail.analytics
diff --git a/salt/control/placement/opencontrail/small.yml b/salt/control/placement/opencontrail/small.yml
index a619956..584b65e 100644
--- a/salt/control/placement/opencontrail/small.yml
+++ b/salt/control/placement/opencontrail/small.yml
@@ -9,6 +9,9 @@
     opencontrail_analytics_node01_hostname: nal01
     opencontrail_analytics_node02_hostname: nal02
     opencontrail_analytics_node03_hostname: nal03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    opencontrail_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    opencontrail_analytics_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -17,30 +20,36 @@
             ntw01:
               name: ${_param:opencontrail_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw02:
               name: ${_param:opencontrail_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             ntw03:
               name: ${_param:opencontrail_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: opencontrail.control
             nal01:
               name: ${_param:opencontrail_analytics_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal02:
               name: ${_param:opencontrail_analytics_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: opencontrail.analytics
             nal03:
               name: ${_param:opencontrail_analytics_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:opencontrail_analytics_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: opencontrail.analytics
\ No newline at end of file
+              size: opencontrail.analytics
diff --git a/salt/control/placement/openstack/compact.yml b/salt/control/placement/openstack/compact.yml
index 8c62e28..83f2254 100644
--- a/salt/control/placement/openstack/compact.yml
+++ b/salt/control/placement/openstack/compact.yml
@@ -14,6 +14,11 @@
     openstack_message_queue_node03_hostname: msg03
     openstack_proxy_node01_hostname: prx01
     openstack_proxy_node02_hostname: prx02
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_database_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_message_queue_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_proxy_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -22,55 +27,66 @@
             ctl01:
               name: ${_param:openstack_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl02:
               name: ${_param:openstack_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl03:
               name: ${_param:openstack_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.control
             dbs01:
               name: ${_param:openstack_database_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs02:
               name: ${_param:openstack_database_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs03:
               name: ${_param:openstack_database_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.database
             msg01:
               name: ${_param:openstack_message_queue_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg02:
               name: ${_param:openstack_message_queue_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg03:
               name: ${_param:openstack_message_queue_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             prx01:
               name: ${_param:openstack_proxy_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.proxy
             prx02:
               name: ${_param:openstack_proxy_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.proxy
diff --git a/salt/control/placement/openstack/large.yml b/salt/control/placement/openstack/large.yml
index cb056dd..f09d3f6 100644
--- a/salt/control/placement/openstack/large.yml
+++ b/salt/control/placement/openstack/large.yml
@@ -21,6 +21,11 @@
     openstack_message_queue_node03_hostname: msg03
     openstack_proxy_node01_hostname: prx01
     openstack_proxy_node02_hostname: prx02
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_database_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_message_queue_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_proxy_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -29,65 +34,78 @@
             ctl01:
               name: ${_param:openstack_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl02:
               name: ${_param:openstack_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl03:
               name: ${_param:openstack_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl04:
               name: ${_param:openstack_control_node04_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl05:
               name: ${_param:openstack_control_node05_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node06_hostname}.${_param:cluster_domain}
               size: openstack.control
             dbs01:
               name: ${_param:openstack_database_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs02:
               name: ${_param:openstack_database_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs03:
               name: ${_param:openstack_database_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node06_hostname}.${_param:cluster_domain}
               size: openstack.database
             msg01:
               name: ${_param:openstack_message_queue_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node07_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg02:
               name: ${_param:openstack_message_queue_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node08_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg03:
               name: ${_param:openstack_message_queue_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node09_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             prx01:
               name: ${_param:openstack_proxy_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node07_hostname}.${_param:cluster_domain}
               size: openstack.proxy
             prx02:
               name: ${_param:openstack_proxy_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node08_hostname}.${_param:cluster_domain}
               size: openstack.proxy
diff --git a/salt/control/placement/openstack/medium.yml b/salt/control/placement/openstack/medium.yml
index 7d0e166..2419c74 100644
--- a/salt/control/placement/openstack/medium.yml
+++ b/salt/control/placement/openstack/medium.yml
@@ -17,6 +17,11 @@
     openstack_message_queue_node03_hostname: msg03
     openstack_proxy_node01_hostname: prx01
     openstack_proxy_node02_hostname: prx02
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_database_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_message_queue_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_proxy_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -25,55 +30,66 @@
             ctl01:
               name: ${_param:openstack_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl02:
               name: ${_param:openstack_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl03:
               name: ${_param:openstack_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.control
             dbs01:
               name: ${_param:openstack_database_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs02:
               name: ${_param:openstack_database_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs03:
               name: ${_param:openstack_database_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.database
             msg01:
               name: ${_param:openstack_message_queue_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg02:
               name: ${_param:openstack_message_queue_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg03:
               name: ${_param:openstack_message_queue_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node06_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             prx01:
               name: ${_param:openstack_proxy_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: openstack.proxy
             prx02:
               name: ${_param:openstack_proxy_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: openstack.proxy
diff --git a/salt/control/placement/openstack/minimal.yml b/salt/control/placement/openstack/minimal.yml
index 8c62e28..83f2254 100644
--- a/salt/control/placement/openstack/minimal.yml
+++ b/salt/control/placement/openstack/minimal.yml
@@ -14,6 +14,11 @@
     openstack_message_queue_node03_hostname: msg03
     openstack_proxy_node01_hostname: prx01
     openstack_proxy_node02_hostname: prx02
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_database_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_message_queue_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_proxy_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -22,55 +27,66 @@
             ctl01:
               name: ${_param:openstack_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl02:
               name: ${_param:openstack_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl03:
               name: ${_param:openstack_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.control
             dbs01:
               name: ${_param:openstack_database_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs02:
               name: ${_param:openstack_database_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs03:
               name: ${_param:openstack_database_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.database
             msg01:
               name: ${_param:openstack_message_queue_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg02:
               name: ${_param:openstack_message_queue_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg03:
               name: ${_param:openstack_message_queue_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             prx01:
               name: ${_param:openstack_proxy_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.proxy
             prx02:
               name: ${_param:openstack_proxy_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.proxy
diff --git a/salt/control/placement/openstack/small.yml b/salt/control/placement/openstack/small.yml
index 8c62e28..83f2254 100644
--- a/salt/control/placement/openstack/small.yml
+++ b/salt/control/placement/openstack/small.yml
@@ -14,6 +14,11 @@
     openstack_message_queue_node03_hostname: msg03
     openstack_proxy_node01_hostname: prx01
     openstack_proxy_node02_hostname: prx02
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_control_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_database_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_message_queue_backend_image: ${_param:salt_control_xenial_image_backend}
+    openstack_proxy_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -22,55 +27,66 @@
             ctl01:
               name: ${_param:openstack_control_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl02:
               name: ${_param:openstack_control_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.control
             ctl03:
               name: ${_param:openstack_control_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_control_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.control
             dbs01:
               name: ${_param:openstack_database_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs02:
               name: ${_param:openstack_database_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.database
             dbs03:
               name: ${_param:openstack_database_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_database_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.database
             msg01:
               name: ${_param:openstack_message_queue_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg02:
               name: ${_param:openstack_message_queue_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             msg03:
               name: ${_param:openstack_message_queue_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_message_queue_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.message_queue
             prx01:
               name: ${_param:openstack_proxy_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.proxy
             prx02:
               name: ${_param:openstack_proxy_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_proxy_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: openstack.proxy
diff --git a/salt/control/placement/ovs/compact.yml b/salt/control/placement/ovs/compact.yml
index 3102b3e..de0569c 100644
--- a/salt/control/placement/ovs/compact.yml
+++ b/salt/control/placement/ovs/compact.yml
@@ -6,6 +6,8 @@
     openstack_gateway_node01_hostname: gtw01
     openstack_gateway_node02_hostname: gtw02
     openstack_gateway_node03_hostname: gtw03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_gateway_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             gtw01:
               name: ${_param:openstack_gateway_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.gateway
             gtw02:
               name: ${_param:openstack_gateway_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.gateway
             gtw03:
               name: ${_param:openstack_gateway_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: openstack.gateway
\ No newline at end of file
+              size: openstack.gateway
diff --git a/salt/control/placement/ovs/minimal.yml b/salt/control/placement/ovs/minimal.yml
index 3102b3e..de0569c 100644
--- a/salt/control/placement/ovs/minimal.yml
+++ b/salt/control/placement/ovs/minimal.yml
@@ -6,6 +6,8 @@
     openstack_gateway_node01_hostname: gtw01
     openstack_gateway_node02_hostname: gtw02
     openstack_gateway_node03_hostname: gtw03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_gateway_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             gtw01:
               name: ${_param:openstack_gateway_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.gateway
             gtw02:
               name: ${_param:openstack_gateway_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.gateway
             gtw03:
               name: ${_param:openstack_gateway_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: openstack.gateway
\ No newline at end of file
+              size: openstack.gateway
diff --git a/salt/control/placement/ovs/small.yml b/salt/control/placement/ovs/small.yml
index 3102b3e..de0569c 100644
--- a/salt/control/placement/ovs/small.yml
+++ b/salt/control/placement/ovs/small.yml
@@ -6,6 +6,8 @@
     openstack_gateway_node01_hostname: gtw01
     openstack_gateway_node02_hostname: gtw02
     openstack_gateway_node03_hostname: gtw03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    openstack_gateway_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -14,15 +16,18 @@
             gtw01:
               name: ${_param:openstack_gateway_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: openstack.gateway
             gtw02:
               name: ${_param:openstack_gateway_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: openstack.gateway
             gtw03:
               name: ${_param:openstack_gateway_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:openstack_gateway_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: openstack.gateway
\ No newline at end of file
+              size: openstack.gateway
diff --git a/salt/control/placement/stacklight/compact.yml b/salt/control/placement/stacklight/compact.yml
index 2cde570..e03ea85 100644
--- a/salt/control/placement/stacklight/compact.yml
+++ b/salt/control/placement/stacklight/compact.yml
@@ -12,6 +12,10 @@
     stacklight_telemetry_node01_hostname: mtr01
     stacklight_telemetry_node02_hostname: mtr02
     stacklight_telemetry_node03_hostname: mtr03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_log_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_monitor_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -20,45 +24,54 @@
             mtr01:
               name: ${_param:stacklight_telemetry_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr02:
               name: ${_param:stacklight_telemetry_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr03:
               name: ${_param:stacklight_telemetry_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             log01:
               name: ${_param:stacklight_log_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log02:
               name: ${_param:stacklight_log_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log03:
               name: ${_param:stacklight_log_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: stacklight.log
             mon01:
               name: ${_param:stacklight_monitor_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon02:
               name: ${_param:stacklight_monitor_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon03:
               name: ${_param:stacklight_monitor_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: stacklight.server
\ No newline at end of file
+              size: stacklight.server
diff --git a/salt/control/placement/stacklight/large.yml b/salt/control/placement/stacklight/large.yml
index 7b380d8..7b1f716 100644
--- a/salt/control/placement/stacklight/large.yml
+++ b/salt/control/placement/stacklight/large.yml
@@ -12,6 +12,10 @@
     stacklight_telemetry_node01_hostname: mtr01
     stacklight_telemetry_node02_hostname: mtr02
     stacklight_telemetry_node03_hostname: mtr03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_log_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_monitor_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -20,45 +24,54 @@
             mtr01:
               name: ${_param:stacklight_telemetry_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node13_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr02:
               name: ${_param:stacklight_telemetry_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node14_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr03:
               name: ${_param:stacklight_telemetry_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node15_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             log01:
               name: ${_param:stacklight_log_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node13_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log02:
               name: ${_param:stacklight_log_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node14_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log03:
               name: ${_param:stacklight_log_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node15_hostname}.${_param:cluster_domain}
               size: stacklight.log
             mon01:
               name: ${_param:stacklight_monitor_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node13_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon02:
               name: ${_param:stacklight_monitor_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node14_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon03:
               name: ${_param:stacklight_monitor_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node15_hostname}.${_param:cluster_domain}
-              size: stacklight.server
\ No newline at end of file
+              size: stacklight.server
diff --git a/salt/control/placement/stacklight/medium.yml b/salt/control/placement/stacklight/medium.yml
index 7f35fe9..a9643fe 100644
--- a/salt/control/placement/stacklight/medium.yml
+++ b/salt/control/placement/stacklight/medium.yml
@@ -12,6 +12,10 @@
     stacklight_telemetry_node01_hostname: mtr01
     stacklight_telemetry_node02_hostname: mtr02
     stacklight_telemetry_node03_hostname: mtr03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_log_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_monitor_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -20,45 +24,54 @@
             mtr01:
               name: ${_param:stacklight_telemetry_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node10_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr02:
               name: ${_param:stacklight_telemetry_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node11_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr03:
               name: ${_param:stacklight_telemetry_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node12_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             log01:
               name: ${_param:stacklight_log_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node10_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log02:
               name: ${_param:stacklight_log_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node11_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log03:
               name: ${_param:stacklight_log_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node12_hostname}.${_param:cluster_domain}
               size: stacklight.log
             mon01:
               name: ${_param:stacklight_monitor_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node10_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon02:
               name: ${_param:stacklight_monitor_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node11_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon03:
               name: ${_param:stacklight_monitor_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node12_hostname}.${_param:cluster_domain}
               size: stacklight.server
diff --git a/salt/control/placement/stacklight/minimal.yml b/salt/control/placement/stacklight/minimal.yml
index 2cde570..e03ea85 100644
--- a/salt/control/placement/stacklight/minimal.yml
+++ b/salt/control/placement/stacklight/minimal.yml
@@ -12,6 +12,10 @@
     stacklight_telemetry_node01_hostname: mtr01
     stacklight_telemetry_node02_hostname: mtr02
     stacklight_telemetry_node03_hostname: mtr03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_log_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_monitor_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -20,45 +24,54 @@
             mtr01:
               name: ${_param:stacklight_telemetry_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr02:
               name: ${_param:stacklight_telemetry_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr03:
               name: ${_param:stacklight_telemetry_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             log01:
               name: ${_param:stacklight_log_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log02:
               name: ${_param:stacklight_log_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log03:
               name: ${_param:stacklight_log_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
               size: stacklight.log
             mon01:
               name: ${_param:stacklight_monitor_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon02:
               name: ${_param:stacklight_monitor_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon03:
               name: ${_param:stacklight_monitor_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node03_hostname}.${_param:cluster_domain}
-              size: stacklight.server
\ No newline at end of file
+              size: stacklight.server
diff --git a/salt/control/placement/stacklight/small.yml b/salt/control/placement/stacklight/small.yml
index e16a7cb..fec0fbf 100644
--- a/salt/control/placement/stacklight/small.yml
+++ b/salt/control/placement/stacklight/small.yml
@@ -12,6 +12,10 @@
     stacklight_telemetry_node01_hostname: mtr01
     stacklight_telemetry_node02_hostname: mtr02
     stacklight_telemetry_node03_hostname: mtr03
+    salt_control_xenial_image_backend: /var/lib/libvirt/images/backends/xenial.qcow2
+    stacklight_log_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_monitor_backend_image: ${_param:salt_control_xenial_image_backend}
+    stacklight_telemetry_backend_image: ${_param:salt_control_xenial_image_backend}
   salt:
     control:
       cluster:
@@ -20,45 +24,54 @@
             mtr01:
               name: ${_param:stacklight_telemetry_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr02:
               name: ${_param:stacklight_telemetry_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             mtr03:
               name: ${_param:stacklight_telemetry_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_telemetry_backend_image}
               provider: ${_param:infra_kvm_node06_hostname}.${_param:cluster_domain}
               size: stacklight.telemetry
             log01:
               name: ${_param:stacklight_log_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log02:
               name: ${_param:stacklight_log_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: stacklight.log
             log03:
               name: ${_param:stacklight_log_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_log_backend_image}
               provider: ${_param:infra_kvm_node06_hostname}.${_param:cluster_domain}
               size: stacklight.log
             mon01:
               name: ${_param:stacklight_monitor_node01_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node04_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon02:
               name: ${_param:stacklight_monitor_node02_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node05_hostname}.${_param:cluster_domain}
               size: stacklight.server
             mon03:
               name: ${_param:stacklight_monitor_node03_hostname}
               image: ${_param:salt_control_xenial_image}
+              backend: ${_param:stacklight_monitor_backend_image}
               provider: ${_param:infra_kvm_node06_hostname}.${_param:cluster_domain}
-              size: stacklight.server
\ No newline at end of file
+              size: stacklight.server