diff --git a/.kitchen.yml b/.kitchen.yml
index 24684ec..2c3b809 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -49,8 +49,7 @@
   sudo: true
 
 docker_images:
-  - &xenial-20177 <%=ENV['IMAGE_XENIAL_20177'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-2017.7/salt:2018_11_19'%>
-  - &xenial-stable <%=ENV['IMAGE_XENIAL_STABLE'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-stable/salt:2018_11_19'%>
+  - &xenial-20177 <%=ENV['IMAGE_XENIAL_20177'] || 'docker-dev-local.docker.mirantis.net/mirantis/drivetrain/salt-formulas-ci/salt-formulas-ci-xenial-2017.7:latest'%>
 
 platforms:
   - name: xenial-2017.7
@@ -58,13 +57,8 @@
       image: *xenial-20177
       platform: ubuntu
 
-  - name: xenial-stable
-    driver_config:
-      image: *xenial-stable
-      platform: ubuntu
-
 suites:
-<% for os_version in ['mitaka','newton','ocata','pike', 'queens', 'rocky'] %>
+<% for os_version in ['pike', 'queens', 'rocky'] %>
   - name: compute_cluster_<%=os_version%>
     provisioner:
       pillars-from-files:
@@ -87,7 +81,7 @@
             controller:
               version: <%=os_version%>
 <% end %>
-<% for os_version in ['queens', ] %>
+<% for os_version in ['queens'] %>
   - name: compute_single_ssl_<%=os_version%>
     driver:
       devices:
diff --git a/README.rst b/README.rst
index 0f6117d..02d0279 100644
--- a/README.rst
+++ b/README.rst
@@ -53,6 +53,9 @@
           user: nova
           password: pwd
           tenant: service
+          interface: internal
+          valid_interfaces:
+          - internal
         message_queue:
           engine: rabbitmq
           host: 127.0.0.1
@@ -192,6 +195,18 @@
       controller:
         update_cells: true
 
+Increase number of chunks for online db migrations:
+
+.. note:: This only should be done in offline as large number of
+   rows locked by this process may cause service outage, which
+   may not be expected.
+
+.. code-block:: yaml
+
+    nova:
+      controller:
+        db_migrations:
+          max_count: 5000000
 
 Configuring TLS communications
 ------------------------------
@@ -1424,3 +1439,20 @@
 |                               | operations, verify do not have dead network          |
 |                               | agents/compute services)                             |
 +-------------------------------+------------------------------------------------------+
+
+
+Don't manage services scheduling while upgrade
+----------------------------------------------
+For some special cases, don't manage services scheduling both enable and disable
+before and after upgrade procedure.
+
+If 'manage_service_maintenance: true' or not present - default behavior, disable services
+before upgrade and enable it after upgrade.
+If 'manage_service_maintenance: false' - don't disable and don't enable upgraded services
+scheduling before and after upgrade.
+
+.. code-block:: yaml
+
+    nova:
+      upgrade:
+        manage_service_maintenance: false
diff --git a/metadata/service/compute/cluster.yml b/metadata/service/compute/cluster.yml
index 8934022..2f081d5 100644
--- a/metadata/service/compute/cluster.yml
+++ b/metadata/service/compute/cluster.yml
@@ -62,6 +62,7 @@
         region: RegionOne
         host: ${_param:opencontrail_control_address}
         port: 9696
+        retry: 3
       cache:
         engine: memcached
         # NOTE (dukov) Do not change this unless you 100% sure what you are doing
diff --git a/metadata/service/compute/ironic.yml b/metadata/service/compute/ironic.yml
index e81933b..e606370 100644
--- a/metadata/service/compute/ironic.yml
+++ b/metadata/service/compute/ironic.yml
@@ -58,6 +58,7 @@
         region: RegionOne
         host: ${_param:cluster_vip_address}
         port: 9696
+        retry: 3
       ironic:
         region: RegionOne
         host: ${_param:ironic_service_host}
diff --git a/metadata/service/compute/kvm.yml b/metadata/service/compute/kvm.yml
index 4174b56..0352323 100644
--- a/metadata/service/compute/kvm.yml
+++ b/metadata/service/compute/kvm.yml
@@ -59,6 +59,7 @@
         region: RegionOne
         host: ${_param:cluster_vip_address}
         port: 9696
+        retry: 3
       cache:
         engine: memcached
         # NOTE (dukov) Do not change this unless you 100% sure what you are doing
diff --git a/metadata/service/control/cluster.yml b/metadata/service/control/cluster.yml
index fa271ff..bb4f432 100644
--- a/metadata/service/control/cluster.yml
+++ b/metadata/service/control/cluster.yml
@@ -69,6 +69,7 @@
         host: ${_param:cluster_vip_address}
         port: 9696
         mtu: 1500
+        retry: 3
       metadata:
         password: metadataPass
       cache:
diff --git a/metadata/service/control/single.yml b/metadata/service/control/single.yml
index 5030462..5178b35 100644
--- a/metadata/service/control/single.yml
+++ b/metadata/service/control/single.yml
@@ -70,6 +70,7 @@
         port: 9696
         mtu: 1500
         tenant: service
+        retry: 3
       metadata:
         password: ${_param:metadata_password}
       cache:
diff --git a/nova/compute.sls b/nova/compute.sls
index 9b3ea44..0e6daf5 100644
--- a/nova/compute.sls
+++ b/nova/compute.sls
@@ -58,8 +58,9 @@
   - groups:
     - nova
 
-/var/lib/nova:
+nova_var_lib_nova:
   file.directory:
+    - name: /var/lib/nova
     - user: nova
     - group: nova
     - dir_mode: 0750
@@ -624,5 +625,25 @@
 
 {%- endif %}
 
+{%- if compute.get('qemu', {}).defaults is defined %}
+
+/etc/default/qemu-kvm:
+  file.managed:
+  - source: salt://nova/files/etc-qemu-kvm
+  - context:
+    params: {{ compute.qemu.defaults }}
+  - template: jinja
+  - require:
+    - pkg: nova_compute_packages
+
+qemu_kvm_service:
+  service.running:
+  - name: qemu-kvm
+  - enable: true
+  - watch:
+    - file: /etc/default/qemu-kvm
+
+{%- endif %}
+
 
 {%- endif %}
diff --git a/nova/controller.sls b/nova/controller.sls
index 013f40d..bf758bb 100644
--- a/nova/controller.sls
+++ b/nova/controller.sls
@@ -281,10 +281,10 @@
 {% endfor %}
 {% endif %}
 
-{% if controller.get('policy', {}) and controller.version not in ['liberty', 'mitaka', 'newton'] %}
+{%- if controller.version not in ['liberty', 'mitaka', 'newton'] %}
 {# nova no longer ships with a default policy.json #}
-
-/etc/nova/policy.json:
+{#- Since Queens release `policy.json` is changed to `policy.yaml`. But default option in `oslo_policy` is `policy.json` #}
+/etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}:
   file.managed:
     - contents: '{}'
     - replace: False
@@ -292,33 +292,32 @@
     - group: nova
     - require:
       - pkg: nova_controller_packages
-
-{% endif %}
+{%- endif %}
 
 {%- for name, rule in controller.get('policy', {}).iteritems() %}
 
 {%- if rule != None %}
 nova_keystone_rule_{{ name }}_present:
   keystone_policy.rule_present:
-  - path: /etc/nova/policy.json
+  - path: /etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}
   - name: {{ name }}
   - rule: {{ rule }}
   - require:
     - pkg: nova_controller_packages
     {% if controller.version not in ['liberty', 'mitaka', 'newton'] %}
-    - file: /etc/nova/policy.json
+    - file: /etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}
     {% endif%}
 
 {%- else %}
 
 nova_keystone_rule_{{ name }}_absent:
   keystone_policy.rule_absent:
-  - path: /etc/nova/policy.json
+  - path: /etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}
   - name: {{ name }}
   - require:
     - pkg: nova_controller_packages
     {% if controller.version not in ['liberty', 'mitaka', 'newton'] %}
-    - file: /etc/nova/policy.json
+    - file: /etc/nova/{{ controller.get('oslo_policy', {}).get('policy_file', 'policy.json') }}
     {% endif%}
 
 {%- endif %}
diff --git a/nova/db/online_sync.sls b/nova/db/online_sync.sls
index 828b35c..ae26a41 100644
--- a/nova/db/online_sync.sls
+++ b/nova/db/online_sync.sls
@@ -4,9 +4,14 @@
 {%- if not grains.get('noservices') and controller.version not in ["juno", "kilo", "liberty"] and controller.get('role', 'primary') == 'primary' %}
 {%- set should_run = '/bin/true' %}
 {%- endif %}
+{%- if controller.get('db_migrations', {}).max_count is defined %}
+{%-   set batches = " --max-count %s" % controller.db_migrations.max_count %}
+{%- else %}
+{%-   set batches = "" %}
+{%- endif %}
 
 nova_controller_online_data_migrations:
   cmd.run:
-  - name: nova-manage db online_data_migrations
+  - name: nova-manage db online_data_migrations{{ batches }}
   - onlyif: {{ should_run }}
   - runas: 'nova'
diff --git a/nova/files/etc-qemu-kvm b/nova/files/etc-qemu-kvm
new file mode 100644
index 0000000..7ba26ec
--- /dev/null
+++ b/nova/files/etc-qemu-kvm
@@ -0,0 +1,18 @@
+# Set to 1 to enable KSM, 0 to disable KSM, and AUTO to use default settings.
+# After changing this setting restart the qemu-kvm service.
+KSM_ENABLED={{ params.get('ksm_enabled', 'AUTO') }}
+SLEEP_MILLISECS={{ params.get('sleep_millisecs', 200) }}
+
+# To load the vhost_net module, which in some cases can speed up
+# network performance, set VHOST_NET_ENABLED to 1.
+#VHOST_NET_ENABLED=0
+{%- if params.vhost_net_enabled is defined %}
+VHOST_NET_ENABLED={{ params.vhost_net_enabled }}
+{%- endif %}
+
+# Set this to 1 if you want hugepages to be available to kvm under
+# /run/hugepages/kvm
+#KVM_HUGEPAGES=0
+{%- if params.kvm_hugepages is defined %}
+KVM_HUGEPAGES={{ params.kvm_hugepages }}
+{%- endif %}
diff --git a/nova/files/grafana_dashboards/nova_instances_prometheus.json b/nova/files/grafana_dashboards/nova_instances_prometheus.json
index f98b327..4273df2 100644
--- a/nova/files/grafana_dashboards/nova_instances_prometheus.json
+++ b/nova/files/grafana_dashboards/nova_instances_prometheus.json
@@ -599,14 +599,14 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "rate(libvirt_domain_info_cpu_time_seconds_total{host=~\"$host\",domain=~\"$instance\"}[$rate_interval])",
+          "expr": "rate(libvirt_domain_info_cpu_time_seconds_total{host=~\"$host\",instance_name=~\"$instance\"}[$rate_interval])",
           "format": "time_series",
           "intervalFactor": 2,
           "legendFormat": "usage",
           "refId": "C"
         },
         {
-          "expr": "libvirt_domain_info_virtual_cpus{host=~\"$host\",domain=~\"$instance\"}",
+          "expr": "libvirt_domain_info_virtual_cpus{host=~\"$host\",instance_name=~\"$instance\"}",
           "format": "time_series",
           "intervalFactor": 2,
           "legendFormat": "total",
@@ -701,7 +701,7 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "libvirt_domain_info_memory_usage_bytes{host=~\"$host\",domain=~\"$instance\"}",
+          "expr": "libvirt_domain_info_memory_usage_bytes{host=~\"$host\",instance_name=~\"$instance\"}",
           "format": "time_series",
           "intervalFactor": 2,
           "legendFormat": "usage",
@@ -798,7 +798,7 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "sum(rate(libvirt_domain_block_stats_read_bytes_total{host=~\"$host\",domain=~\"$instance\"}[$rate_interval]))",
+          "expr": "sum(rate(libvirt_domain_block_stats_read_bytes_total{host=~\"$host\",instance_name=~\"$instance\"}[$rate_interval]))",
           "format": "time_series",
           "instant": false,
           "intervalFactor": 2,
@@ -806,7 +806,7 @@
           "refId": "A"
         },
         {
-          "expr": "sum(rate(libvirt_domain_block_stats_write_bytes_total{host=~\"$host\",domain=~\"$instance\"}[$rate_interval]))",
+          "expr": "sum(rate(libvirt_domain_block_stats_write_bytes_total{host=~\"$host\",instance_name=~\"$instance\"}[$rate_interval]))",
           "format": "time_series",
           "intervalFactor": 2,
           "legendFormat": "write",
@@ -908,7 +908,7 @@
       "steppedLine": false,
       "targets": [
         {
-          "expr": "sum(rate(libvirt_domain_interface_stats_receive_bytes_total{host=~\"$host\",domain=~\"$instance\"}[$rate_interval]))",
+          "expr": "sum(rate(libvirt_domain_interface_stats_receive_bytes_total{host=~\"$host\",instance_name=~\"$instance\"}[$rate_interval]))",
           "format": "time_series",
           "instant": false,
           "intervalFactor": 2,
@@ -916,7 +916,7 @@
           "refId": "A"
         },
         {
-          "expr": "sum(rate(libvirt_domain_interface_stats_transmit_bytes_total{host=~\"$host\",domain=~\"$instance\"}[$rate_interval]))",
+          "expr": "sum(rate(libvirt_domain_interface_stats_transmit_bytes_total{host=~\"$host\",instance_name=~\"$instance\"}[$rate_interval]))",
           "format": "time_series",
           "instant": false,
           "intervalFactor": 2,
@@ -1013,7 +1013,7 @@
         "multi": true,
         "name": "instance",
         "options": [],
-        "query": "label_values(libvirt_domain_info_virtual_cpus{host=~\"$host\"},domain)",
+        "query": "label_values(libvirt_domain_info_virtual_cpus{host=~\"$host\"},instance_name)",
         "refresh": 1,
         "regex": "",
         "sort": 1,
diff --git a/nova/files/grafana_dashboards/nova_utilization_prometheus.json b/nova/files/grafana_dashboards/nova_utilization_prometheus.json
index 2fbf7fd..43060e6 100644
--- a/nova/files/grafana_dashboards/nova_utilization_prometheus.json
+++ b/nova/files/grafana_dashboards/nova_utilization_prometheus.json
@@ -970,21 +970,8 @@
 {%- raw %}
           "format": "time_series",
           "intervalFactor": 2,
-          "legendFormat": "used",
-          "refId": "B"
-        },
-        {
-{%- endraw %}
-{%- if parameters is defined and parameters.get('nova_compute_ceph_ephemeral', False) == True %}
-          "expr": "max(avg((openstack_nova_disk - openstack_nova_disk_available) and on (hostname) (openstack_nova_service_status == 1 and openstack_nova_service_state == 1)) by (instance))",
-{%- else %}
-          "expr": "max(sum((openstack_nova_disk - openstack_nova_disk_available) and on (hostname) (openstack_nova_service_status == 1 and openstack_nova_service_state == 1)) by (instance))",
-{%- endif %}
-{%- raw %}
-          "format": "time_series",
-          "intervalFactor": 2,
           "legendFormat": "allocated",
-          "refId": "C"
+          "refId": "B"
         }
       ],
       "thresholds": [],
@@ -1037,9 +1024,10 @@
         "#d44a3a"
       ],
       "datasource": null,
+      "decimals": 2,
       "format": "percentunit",
       "gauge": {
-        "maxValue": 1,
+        "maxValue": 2,
         "minValue": 0,
         "show": true,
         "thresholdLabels": false,
@@ -1047,11 +1035,11 @@
       },
       "gridPos": {
         "h": 5,
-        "w": 3,
+        "w": 6,
         "x": 18,
         "y": 11
       },
-      "id": 47,
+      "id": 55,
       "interval": null,
       "links": [],
       "mappingType": 1,
@@ -1100,94 +1088,7 @@
           "refId": "A"
         }
       ],
-      "thresholds": "0.85,0.95",
-      "title": "Disk Usage %",
-      "type": "singlestat",
-      "valueFontSize": "80%",
-      "valueMaps": [
-        {
-          "op": "=",
-          "text": "N/A",
-          "value": "null"
-        }
-      ],
-      "valueName": "current"
-    },
-    {
-      "cacheTimeout": null,
-      "colorBackground": false,
-      "colorValue": false,
-      "colors": [
-        "#299c46",
-        "rgba(237, 129, 40, 0.89)",
-        "#d44a3a"
-      ],
-      "datasource": null,
-      "decimals": 2,
-      "format": "percentunit",
-      "gauge": {
-        "maxValue": 6,
-        "minValue": 0,
-        "show": true,
-        "thresholdLabels": false,
-        "thresholdMarkers": true
-      },
-      "gridPos": {
-        "h": 5,
-        "w": 3,
-        "x": 21,
-        "y": 11
-      },
-      "id": 55,
-      "interval": null,
-      "links": [],
-      "mappingType": 1,
-      "mappingTypes": [
-        {
-          "name": "value to text",
-          "value": 1
-        },
-        {
-          "name": "range to text",
-          "value": 2
-        }
-      ],
-      "maxDataPoints": 100,
-      "nullPointMode": "connected",
-      "nullText": null,
-      "postfix": "",
-      "postfixFontSize": "50%",
-      "prefix": "",
-      "prefixFontSize": "50%",
-      "rangeMaps": [
-        {
-          "from": "null",
-          "text": "N/A",
-          "to": "null"
-        }
-      ],
-      "sparkline": {
-        "fillColor": "rgba(31, 118, 189, 0.18)",
-        "full": false,
-        "lineColor": "rgb(31, 120, 193)",
-        "show": false
-      },
-      "tableColumn": "",
-      "targets": [
-        {
-{%- endraw %}
-{%- if parameters is defined and parameters.get('nova_compute_ceph_ephemeral', False) == True %}
-          "expr": "max(avg((openstack_nova_disk - openstack_nova_disk_available) and on (hostname) (openstack_nova_service_status == 1 and openstack_nova_service_state == 1)) by (instance)) / max(avg(openstack_nova_disk and on (hostname) (openstack_nova_service_status == 1 and openstack_nova_service_state == 1)) by (instance))",
-{%- else %}
-          "expr": "max(sum((openstack_nova_disk - openstack_nova_disk_available) and on (hostname) (openstack_nova_service_status == 1 and openstack_nova_service_state == 1)) by (instance)) / max(sum(openstack_nova_disk and on (hostname) (openstack_nova_service_status == 1 and openstack_nova_service_state == 1)) by (instance))",
-{%- endif %}
-{%- raw %}
-          "format": "time_series",
-          "intervalFactor": 2,
-          "refId": "A"
-        }
-      ],
-      "thresholds": "2,4",
+      "thresholds": "1,1.5",
       "title": "Disk Allocated %",
       "type": "singlestat",
       "valueFontSize": "80%",
@@ -1778,94 +1679,6 @@
           "valueName": "current"
         },
         {
-          "cacheTimeout": null,
-          "colorBackground": false,
-          "colorValue": false,
-          "colors": [
-            "#299c46",
-            "rgba(237, 129, 40, 0.89)",
-            "#d44a3a"
-          ],
-          "datasource": null,
-          "format": "percentunit",
-          "gauge": {
-            "maxValue": 1,
-            "minValue": 0,
-            "show": true,
-            "thresholdLabels": false,
-            "thresholdMarkers": true
-          },
-          "gridPos": {
-            "h": 5,
-            "w": 5,
-            "x": 0,
-            "y": 12
-          },
-          "id": 26,
-          "interval": null,
-          "links": [],
-          "mappingType": 1,
-          "mappingTypes": [
-            {
-              "name": "value to text",
-              "value": 1
-            },
-            {
-              "name": "range to text",
-              "value": 2
-            }
-          ],
-          "maxDataPoints": 100,
-          "nullPointMode": "connected",
-          "nullText": null,
-          "postfix": "",
-          "postfixFontSize": "50%",
-          "prefix": "",
-          "prefixFontSize": "50%",
-          "rangeMaps": [
-            {
-              "from": "null",
-              "text": "N/A",
-              "to": "null"
-            }
-          ],
-          "scopedVars": {
-            "aggregate": {
-              "isNone": true,
-              "selected": true,
-              "text": "None",
-              "value": ""
-            }
-          },
-          "sparkline": {
-            "fillColor": "rgba(31, 118, 189, 0.18)",
-            "full": false,
-            "lineColor": "rgb(31, 120, 193)",
-            "show": false
-          },
-          "tableColumn": "",
-          "targets": [
-            {
-              "expr": "max(openstack_nova_aggregate_used_disk{aggregate=\"$aggregate\"} / openstack_nova_aggregate_disk{aggregate=\"$aggregate\"})",
-              "format": "time_series",
-              "intervalFactor": 2,
-              "refId": "A"
-            }
-          ],
-          "thresholds": "0.85,0.95",
-          "title": "Disk Usage",
-          "type": "singlestat",
-          "valueFontSize": "80%",
-          "valueMaps": [
-            {
-              "op": "=",
-              "text": "N/A",
-              "value": "null"
-            }
-          ],
-          "valueName": "current"
-        },
-        {
           "aliasColors": {},
           "bars": false,
           "dashLength": 10,
@@ -1874,8 +1687,8 @@
           "fill": 1,
           "gridPos": {
             "h": 5,
-            "w": 14,
-            "x": 5,
+            "w": 19,
+            "x": 0,
             "y": 12
           },
           "id": 25,
@@ -1922,15 +1735,8 @@
               "expr": "max(openstack_nova_aggregate_used_disk{aggregate=\"$aggregate\"})",
               "format": "time_series",
               "intervalFactor": 2,
-              "legendFormat": "used",
-              "refId": "B"
-            },
-            {
-              "expr": "max(openstack_nova_aggregate_disk{aggregate=\"$aggregate\"} - openstack_nova_aggregate_disk_available{aggregate=\"$aggregate\"})",
-              "format": "time_series",
-              "intervalFactor": 2,
               "legendFormat": "allocated",
-              "refId": "C"
+              "refId": "B"
             }
           ],
           "thresholds": [],
@@ -2043,13 +1849,13 @@
           "tableColumn": "",
           "targets": [
             {
-              "expr": "max((openstack_nova_aggregate_disk{aggregate=\"$aggregate\"} - openstack_nova_aggregate_disk_available{aggregate=\"$aggregate\"}) / openstack_nova_aggregate_disk{aggregate=\"$aggregate\"})",
+              "expr": "max(openstack_nova_aggregate_used_disk{aggregate=\"$aggregate\"} / openstack_nova_aggregate_disk{aggregate=\"$aggregate\"})",
               "format": "time_series",
               "intervalFactor": 2,
               "refId": "A"
             }
           ],
-          "thresholds": "0.9,1",
+          "thresholds": "1,1.5",
           "title": "Current Disk Allocation Ratio",
           "type": "singlestat",
           "valueFontSize": "80%",
@@ -2653,93 +2459,6 @@
           "valueName": "current"
         },
         {
-          "cacheTimeout": null,
-          "colorBackground": false,
-          "colorValue": false,
-          "colors": [
-            "#299c46",
-            "rgba(237, 129, 40, 0.89)",
-            "#d44a3a"
-          ],
-          "datasource": null,
-          "format": "percentunit",
-          "gauge": {
-            "maxValue": 1,
-            "minValue": 0,
-            "show": true,
-            "thresholdLabels": false,
-            "thresholdMarkers": true
-          },
-          "gridPos": {
-            "h": 5,
-            "w": 5,
-            "x": 0,
-            "y": 13
-          },
-          "id": 34,
-          "interval": null,
-          "links": [],
-          "mappingType": 1,
-          "mappingTypes": [
-            {
-              "name": "value to text",
-              "value": 1
-            },
-            {
-              "name": "range to text",
-              "value": 2
-            }
-          ],
-          "maxDataPoints": 100,
-          "nullPointMode": "connected",
-          "nullText": null,
-          "postfix": "",
-          "postfixFontSize": "50%",
-          "prefix": "",
-          "prefixFontSize": "50%",
-          "rangeMaps": [
-            {
-              "from": "null",
-              "text": "N/A",
-              "to": "null"
-            }
-          ],
-          "scopedVars": {
-            "host": {
-              "selected": true,
-              "text": "cmp1",
-              "value": "cmp1"
-            }
-          },
-          "sparkline": {
-            "fillColor": "rgba(31, 118, 189, 0.18)",
-            "full": false,
-            "lineColor": "rgb(31, 120, 193)",
-            "show": false
-          },
-          "tableColumn": "",
-          "targets": [
-            {
-              "expr": "max(openstack_nova_used_disk{hostname=\"$host\"} / openstack_nova_disk{hostname=\"$host\"})",
-              "format": "time_series",
-              "intervalFactor": 2,
-              "refId": "A"
-            }
-          ],
-          "thresholds": "0.85,0.95",
-          "title": "Disk Usage",
-          "type": "singlestat",
-          "valueFontSize": "80%",
-          "valueMaps": [
-            {
-              "op": "=",
-              "text": "N/A",
-              "value": "null"
-            }
-          ],
-          "valueName": "current"
-        },
-        {
           "aliasColors": {},
           "bars": false,
           "dashLength": 10,
@@ -2748,8 +2467,8 @@
           "fill": 1,
           "gridPos": {
             "h": 5,
-            "w": 14,
-            "x": 5,
+            "w": 19,
+            "x": 0,
             "y": 13
           },
           "id": 35,
@@ -2795,15 +2514,8 @@
               "expr": "max(openstack_nova_used_disk{hostname=\"$host\"})",
               "format": "time_series",
               "intervalFactor": 2,
-              "legendFormat": "used",
-              "refId": "B"
-            },
-            {
-              "expr": "max(openstack_nova_disk{hostname=\"$host\"} - openstack_nova_disk_available{hostname=\"$host\"})",
-              "format": "time_series",
-              "intervalFactor": 2,
               "legendFormat": "allocated",
-              "refId": "C"
+              "refId": "B"
             }
           ],
           "thresholds": [],
@@ -2915,13 +2627,13 @@
           "tableColumn": "",
           "targets": [
             {
-              "expr": "max((openstack_nova_disk{hostname=\"$host\"} - openstack_nova_disk_available{hostname=\"$host\"}) / openstack_nova_disk{hostname=\"$host\"})",
+              "expr": "max(openstack_nova_used_disk{hostname=\"$host\"} / openstack_nova_disk{hostname=\"$host\"})",
               "format": "time_series",
               "intervalFactor": 2,
               "refId": "A"
             }
           ],
-          "thresholds": "0.9,1",
+          "thresholds": "1,1.5",
           "title": "Current Disk Allocation Ratio",
           "type": "singlestat",
           "valueFontSize": "80%",
@@ -3041,6 +2753,6 @@
   "timezone": "",
   "title": "Nova - Utilization",
   "uid": null,
-  "version": 2
+  "version": 3
 }
 {%- endraw %}
diff --git a/nova/files/pike/nova-compute.conf.Debian b/nova/files/pike/nova-compute.conf.Debian
index 418f931..10d3352 100644
--- a/nova/files/pike/nova-compute.conf.Debian
+++ b/nova/files/pike/nova-compute.conf.Debian
@@ -5953,12 +5953,18 @@
 # backwards compatibility reasons this currently only affects the allow_expired
 # check. (list value)
 #service_token_roles=service
+{%- if compute.service_token_roles is defined %}
+service_token_roles = {{ compute.service_token_roles }}
+{%- endif %}
 
 # For backwards compatibility reasons we must let valid service tokens pass that
 # don't pass the service_token_roles check as valid. Setting this true will
 # become the default in a future release and should be enabled if possible.
 # (boolean value)
 #service_token_roles_required=false
+{%- if compute.service_token_roles_required is defined %}
+service_token_roles_required = {{ compute.service_token_roles_required }}
+{%- endif %}
 
 # Prefix to prepend at the beginning of the path. Deprecated, use identity_uri.
 # (string value)
@@ -6054,6 +6060,9 @@
 {%- if compute.lvm.volume_clear_size is defined %}
 volume_clear_size={{ compute.lvm.volume_clear_size }}
 {%- endif %}
+{%- if compute.lvm.volume_clear_ionice_level is defined %}
+volume_clear_ionice_level={{compute.lvm.volume_clear_ionice_level}}
+{%- endif %}
 {%- endif %}
 
 # The ID of the image to boot from to rescue data from a corrupted instance.
@@ -6724,6 +6733,31 @@
 #volume_clear_size=0
 
 #
+# What I/O schedule class and priority level should be used when clearing
+# a volume. Only takes effect if ``volume_clear`` option is set to ``zero`` or
+# ``shred``. For more info about classes and priorities, check ``man ionice``.
+#
+# Possible values:
+#
+# * idle - use the Idle scheduling class. This option impacts system performance
+#   the least with a downside of increased time for volume clearance
+#   * from 0 to 7 - use the Best-effort scheduling class and set the priority level
+#     to the specified number
+#
+#     If not set - do not set I/O scheduling class explicitly. Usually, it's the most
+#     aggressive option in terms of system performance impact.
+#
+#     Related options:
+#
+#     * images_type - must be set to ``lvm``
+#     * volume_clear - must be set and the value must be different than ``none``
+#       for this option to have any impact
+#  (string value)
+# Possible values:
+# 'idle', '0', '1', '2', '3', '4', '5', '6', '7'
+#volume_clear_ionice_level=None
+
+#
 # Enable snapshot compression for ``qcow2`` images.
 #
 # Note: you can set ``snapshot_image_format`` to ``qcow2`` to force all
diff --git a/nova/files/pike/nova-controller.conf.Debian b/nova/files/pike/nova-controller.conf.Debian
index ef3d1b5..8f6eacd 100644
--- a/nova/files/pike/nova-controller.conf.Debian
+++ b/nova/files/pike/nova-controller.conf.Debian
@@ -5794,6 +5794,15 @@
 #reauthenticate=true
 
 
+[keystone]
+interface = controller.identity.get('interface', 'internal')
+{%- if controller.identity.valid_interfaces is defined %}
+{%-   set valid_interfaces = controller.identity.valid_interfaces|join(',') %}
+{%- else %}
+{%-   set valid_interfaces = 'internal' %}
+{%- endif %}
+valid_interfaces = {{ valid_interfaces }}
+
 [keystone_authtoken]
 
 #
@@ -5975,12 +5984,18 @@
 # backwards compatibility reasons this currently only affects the allow_expired
 # check. (list value)
 #service_token_roles=service
+{%- if controller.service_token_roles is defined %}
+service_token_roles = {{ controller.service_token_roles }}
+{%- endif %}
 
 # For backwards compatibility reasons we must let valid service tokens pass that
 # don't pass the service_token_roles check as valid. Setting this true will
 # become the default in a future release and should be enabled if possible.
 # (boolean value)
 #service_token_roles_required=false
+{%- if controller.service_token_roles_required is defined %}
+service_token_roles_required = {{ controller.service_token_roles_required }}
+{%- endif %}
 
 # Prefix to prepend at the beginning of the path. Deprecated, use identity_uri.
 # (string value)
@@ -6693,6 +6708,30 @@
 #volume_clear_size=0
 
 #
+# What I/O schedule class and priority level should be used when clearing
+# a volume. Only takes effect if ``volume_clear`` option is set to ``zero`` or
+# ``shred``. For more info about classes and priorities, check ``man ionice``.
+#
+# Possible values:
+#
+# * idle - use the Idle scheduling class. This option impacts system performance
+#   the least with a downside of increased time for volume clearance
+#   * from 0 to 7 - use the Best-effort scheduling class and set the priority level
+#     to the specified number
+#
+#     If not set - do not set I/O scheduling class explicitly. Usually, it's the most
+#     aggressive option in terms of system performance impact.
+#
+#     Related options:
+#
+#     * images_type - must be set to ``lvm``
+#     * volume_clear - must be set and the value must be different than ``none``
+#       for this option to have any impact
+#  (string value)
+# Possible values:
+# 'idle', '0', '1', '2', '3', '4', '5', '6', '7'
+#volume_clear_ionice_level=None
+#
 # Enable snapshot compression for ``qcow2`` images.
 #
 # Note: you can set ``snapshot_image_format`` to ``qcow2`` to force all
diff --git a/nova/files/queens/nova-compute.conf.Debian b/nova/files/queens/nova-compute.conf.Debian
index 5d81c47..443cdde 100644
--- a/nova/files/queens/nova-compute.conf.Debian
+++ b/nova/files/queens/nova-compute.conf.Debian
@@ -4685,6 +4685,9 @@
 #     enabled_vgpu_types = GRID K100,Intel GVT-g,MxGPU.2,nvidia-11
 #  (list value)
 #enabled_vgpu_types =
+{%- if compute.get('devices', {}).enabled_vgpu_types is defined %}
+enabled_vgpu_types = {{ compute.devices.enabled_vgpu_types }}
+{% endif %}
 
 
 [ephemeral_storage_encryption]
@@ -7265,19 +7268,19 @@
 # What I/O schedule class and priority level should be used when clearing
 # a volume. Only takes effect if ``volume_clear`` option is set to ``zero`` or
 # ``shred``. For more info about classes and priorities, check ``man ionice``.
-# 
+#
 # Possible values:
-# 
+#
 # * idle - use the Idle scheduling class. This option impacts system performance
 #   the least with a downside of increased time for volume clearance
 #   * from 0 to 7 - use the Best-effort scheduling class and set the priority level
 #     to the specified number
-# 
+#
 #     If not set - do not set I/O scheduling class explicitly. Usually, it's the most
 #     aggressive option in terms of system performance impact.
-# 
+#
 #     Related options:
-# 
+#
 #     * images_type - must be set to ``lvm``
 #     * volume_clear - must be set and the value must be different than ``none``
 #       for this option to have any impact
@@ -7819,6 +7822,15 @@
 extension_sync_interval={{ compute.network.get('extension_sync_interval', '600') }}
 
 #
+# Integer value representing the number of retry attemps
+# if connection error happens.
+#  (integer value)
+#retry = 0
+{%- if compute.network.retry is defined %}
+retry = {{ compute.network.retry }}
+{%- endif %}
+
+#
 # When set to True, this option indicates that Neutron will be used to
 # proxy
 # metadata requests and resolve instance ids. Otherwise, the instance
@@ -10861,8 +10873,8 @@
 {%- endif %}
 
 [oslo_policy]
-{%- if compute.policy is defined %}
-{%- set _data = compute.policy %}
+{%- if compute.oslo_policy is defined %}
+{%- set _data = compute.oslo_policy %}
 {%- include "oslo_templates/files/queens/oslo/_policy.conf" %}
 {%- endif %}
 
diff --git a/nova/files/queens/nova-controller.conf.Debian b/nova/files/queens/nova-controller.conf.Debian
index c5239d7..d711e98 100644
--- a/nova/files/queens/nova-controller.conf.Debian
+++ b/nova/files/queens/nova-controller.conf.Debian
@@ -6104,6 +6104,9 @@
 # List of interfaces, in order of preference, for endpoint URL. (list
 # value)
 #valid_interfaces = internal,public
+{%- if controller.identity.valid_interfaces is defined %}
+valid_interfaces = {{ controller.identity.valid_interfaces|join(',') }}
+{%- endif %}
 
 # The default region_name for endpoint URL discovery. (string value)
 #region_name = <None>
@@ -7684,6 +7687,15 @@
 #extension_sync_interval = 600
 
 #
+# Integer value representing the number of retry attemps
+# if connection error happens.
+#  (integer value)
+#retry = 0
+{%- if controller.network.retry is defined %}
+retry = {{ controller.network.retry }}
+{%- endif %}
+
+#
 # When set to True, this option indicates that Neutron will be used to
 # proxy
 # metadata requests and resolve instance ids. Otherwise, the instance
@@ -10602,8 +10614,8 @@
 {%- endif %}
 
 [oslo_policy]
-{%- if controller.policy is defined %}
-{%- set _data = controller.policy %}
+{%- if controller.oslo_policy is defined %}
+{%- set _data = controller.oslo_policy %}
 {%- include "oslo_templates/files/queens/oslo/_policy.conf" %}
 {%- endif %}
 
diff --git a/nova/files/rocky/nova-compute.conf.Debian b/nova/files/rocky/nova-compute.conf.Debian
index 8687c77..32280db 100644
--- a/nova/files/rocky/nova-compute.conf.Debian
+++ b/nova/files/rocky/nova-compute.conf.Debian
@@ -4091,6 +4091,9 @@
 #     enabled_vgpu_types = GRID K100,Intel GVT-g,MxGPU.2,nvidia-11
 #  (list value)
 #enabled_vgpu_types =
+{%- if compute.get('devices', {}).enabled_vgpu_types is defined %}
+enabled_vgpu_types = {{ compute.devices.enabled_vgpu_types }}
+{% endif %}
 
 
 [ephemeral_storage_encryption]
diff --git a/nova/map.jinja b/nova/map.jinja
index 012aa74..9591f74 100644
--- a/nova/map.jinja
+++ b/nova/map.jinja
@@ -47,6 +47,9 @@
         'debug': false,
         'notification': false,
         'cors': {},
+        'oslo_policy': {
+          'policy_file': 'policy.json'
+        },
         'audit': {
           'enabled': false
         },
@@ -83,6 +86,9 @@
         'debug': false,
         'notification': false,
         'cors': {},
+        'oslo_policy': {
+          'policy_file': 'policy.json'
+        },
         'audit': {
           'enabled': false
         },
diff --git a/nova/meta/logrotate.yml b/nova/meta/logrotate.yml
new file mode 100644
index 0000000..27012bd
--- /dev/null
+++ b/nova/meta/logrotate.yml
@@ -0,0 +1,78 @@
+## Default: Daily rotation with 28 rotations kept
+{%- from "nova/map.jinja" import controller, compute with context %}
+
+{%- if controller.get('enabled', False) %}
+  {%- set log_interval = controller.get('logrotate', {}).get('interval', 'daily') %}
+  {%- set log_rotation = controller.get('logrotate', {}).get('rotate', 28) %}
+{%- elif compute.get('enabled', False) %}
+  {%- set log_interval = compute.get('logrotate', {}).get('interval', 'daily') %}
+  {%- set log_rotation = compute.get('logrotate', {}).get('rotate', 28) %}
+{%- endif %}
+
+{%- if controller.get('enabled', False) or compute.get('enabled', False) %}
+job:
+  nova-common:
+    - files:
+        - /var/log/nova/*.log
+      options:
+        - {{ log_interval }}
+        - rotate: {{ log_rotation }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+        - notifempty
+{%- endif %}
+{%- if compute.get('enabled', False) and compute.get('compute_driver', 'libvirt.LibvirtDriver') == 'libvirt.LibvirtDriver' %}
+  libvirtd:
+    - files:
+        - /var/log/libvirt/libvirtd.log
+      options:
+        - {{ compute.get('libvirt', {}).get('logrotate', {}).get('interval', 'weekly') }}
+        - rotate: {{ compute.get('libvirt', {}).get('logrotate', {}).get('rotate', 4) }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+        - minsize: 100k
+  libvirtd.libxl:
+    - files:
+        - /var/log/libvirt/libxl/*.log
+      options:
+        - {{ compute.get('libvirt', {}).get('logrotate', {}).get('interval', 'weekly') }}
+        - rotate: {{ compute.get('libvirt', {}).get('logrotate', {}).get('rotate', 4) }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+  libvirtd.lxc:
+    - files:
+        - /var/log/libvirt/lxc/*.log
+      options:
+        - {{ compute.get('libvirt', {}).get('logrotate', {}).get('interval', 'weekly') }}
+        - rotate: {{ compute.get('libvirt', {}).get('logrotate', {}).get('rotate', 4) }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+  libvirtd.qemu:
+    - files:
+        - /var/log/libvirt/qemu/*.log
+      options:
+        - {{ compute.get('libvirt', {}).get('logrotate', {}).get('interval', 'weekly') }}
+        - rotate: {{ compute.get('libvirt', {}).get('logrotate', {}).get('rotate', 4) }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+  libvirtd.uml:
+    - files:
+        - /var/log/libvirt/uml/*.log
+      options:
+        - {{ compute.get('libvirt', {}).get('logrotate', {}).get('interval', 'weekly') }}
+        - rotate: {{ compute.get('libvirt', {}).get('logrotate', {}).get('rotate', 4) }}
+        - missingok
+        - compress
+        - delaycompress
+        - copytruncate
+{%- endif %}
diff --git a/nova/upgrade/pre/init.sls b/nova/upgrade/pre/init.sls
index 0c5834e..4ca128d 100644
--- a/nova/upgrade/pre/init.sls
+++ b/nova/upgrade/pre/init.sls
@@ -24,6 +24,7 @@
 include:
  - nova.db.online_sync
 
+{%- if controller.version not in ["juno", "kilo", "liberty", "mitaka", "newton"] %}
 nova_status:
   cmd.run:
     - name: nova-status upgrade check
@@ -31,6 +32,7 @@
     - onlyif: /bin/false
   {%- endif %}
 {%- endif %}
+{%- endif %}
 
 {%- set os_content = salt['mine.get']('I@keystone:client:os_client_config:enabled:true', 'keystone_os_client_config', 'compound').values()[0] %}
 keystone_os_client_config:
diff --git a/nova/upgrade/upgrade/post.sls b/nova/upgrade/upgrade/post.sls
index e532c1d..7d4bceb 100644
--- a/nova/upgrade/upgrade/post.sls
+++ b/nova/upgrade/upgrade/post.sls
@@ -1,4 +1,4 @@
-{%- from "nova/map.jinja" import controller, compute, compute_driver_mapping with context %}
+{%- from "nova/map.jinja" import controller, compute, compute_driver_mapping, upgrade with context %}
 
 nova_upgrade_post:
   test.show_notification:
@@ -7,6 +7,7 @@
 
 {%- if compute.get('enabled') %}
 {% set host_id = salt['network.get_hostname']() %}
+  {%- if upgrade.get('manage_service_maintenance', true) %}
 
 novav21_service_enabled:
   novav21.service_enabled:
@@ -14,4 +15,5 @@
   - cloud_name: admin_identity
   - name: {{ host_id }}
 
+  {% endif %}
 {% endif %}
diff --git a/nova/upgrade/upgrade/pre.sls b/nova/upgrade/upgrade/pre.sls
index e9b48ea..cc2b79a 100644
--- a/nova/upgrade/upgrade/pre.sls
+++ b/nova/upgrade/upgrade/pre.sls
@@ -1,4 +1,4 @@
-{%- from "nova/map.jinja" import controller, compute, compute_driver_mapping with context %}
+{%- from "nova/map.jinja" import controller, compute, compute_driver_mapping, upgrade with context %}
 
 nova_upgrade_pre:
   test.show_notification:
@@ -7,6 +7,7 @@
 
 {%- if compute.get('enabled') %}
 {% set host_id = salt['network.get_hostname']() %}
+  {%- if upgrade.get('manage_service_maintenance', true) %}
 
 novav21_service_disabled:
   novav21.service_disabled:
@@ -15,4 +16,5 @@
   - cloud_name: admin_identity
   - name: {{ host_id }}
 
+  {% endif %}
 {% endif %}