diff --git a/de/heat-templates/env/compute.yaml b/de/heat-templates/env/compute.yaml
index 5e64d6e..cc59dc3 100644
--- a/de/heat-templates/env/compute.yaml
+++ b/de/heat-templates/env/compute.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openvswitch":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/converged.yaml b/de/heat-templates/env/converged.yaml
index 2b16c18..e0b05ed 100644
--- a/de/heat-templates/env/converged.yaml
+++ b/de/heat-templates/env/converged.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openstack-compute-node":"enabled","openvswitch":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0-lma3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0-lma3.yaml
index bd4b8af..0fc9453 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0-lma3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0-lma3.yaml
@@ -24,4 +24,25 @@
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0.yaml
index ae48797..bf0b504 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp0-gtw0.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openstack-compute-node":"enabled","openvswitch":"enabled", "openstack-gateway":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml
index e1ad50c..787f826 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0-lma3.yaml
@@ -24,4 +24,25 @@
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0.yaml
index ca44d96..2c858ab 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp2-gtw0.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openvswitch":"enabled","openstack-gateway": "enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml
index 8e1efd0..b9ab4c5 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3-lma3.yaml
@@ -25,3 +25,25 @@
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","tfvrouter":"enabled", "role":"ceph-osd-node"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
   ntw_metadata: {"labels": {"tfconfig":"enabled","tfconfigdb":"enabled","tfcontrol":"enabled","tfanalytics":"enabled","tfanalyticsdb":"enabled","tfwebui":"enabled"}}
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3.yaml
index 7b8add0..75cd8c6 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp2-ntw3.yaml
@@ -23,3 +23,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","tfvrouter":"enabled", "role":"ceph-osd-node"}}
   ntw_metadata: {"labels": {"tfconfig":"enabled","tfconfigdb":"enabled","tfcontrol":"enabled","tfanalytics":"enabled","tfanalyticsdb":"enabled","tfwebui":"enabled"}}
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp3-gtw0.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp3-gtw0.yaml
index e7718c3..06fb96c 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp3-gtw0.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp3-gtw0.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openvswitch":"enabled","openstack-gateway":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr3-cmp3-ntw3.yaml b/de/heat-templates/env/mstr1-wrkr3-cmp3-ntw3.yaml
index 25f8ff9..8b1e791 100644
--- a/de/heat-templates/env/mstr1-wrkr3-cmp3-ntw3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr3-cmp3-ntw3.yaml
@@ -23,3 +23,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","tfvrouter":"enabled", "role":"ceph-osd-node"}}
   ntw_metadata: {"labels": {"tfconfig":"enabled","tfconfigdb":"enabled","tfcontrol":"enabled","tfanalytics":"enabled","tfanalyticsdb":"enabled","tfwebui":"enabled"}}
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr5-cmp0-gtw0.yaml b/de/heat-templates/env/mstr1-wrkr5-cmp0-gtw0.yaml
index e91095d..242094d 100644
--- a/de/heat-templates/env/mstr1-wrkr5-cmp0-gtw0.yaml
+++ b/de/heat-templates/env/mstr1-wrkr5-cmp0-gtw0.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openstack-compute-node":"enabled","openvswitch":"enabled","openstack-gateway":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr1-wrkr5-cmp2-gtw0.yaml b/de/heat-templates/env/mstr1-wrkr5-cmp2-gtw0.yaml
index 50ceae3..51cbb33 100644
--- a/de/heat-templates/env/mstr1-wrkr5-cmp2-gtw0.yaml
+++ b/de/heat-templates/env/mstr1-wrkr5-cmp2-gtw0.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openvswitch":"enabled","openstack-gateway":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0-lma3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0-lma3.yaml
index 2ac2cec..b07ffc3 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0-lma3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0-lma3.yaml
@@ -24,4 +24,25 @@
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0.yaml
index 2010d6c..84e4e51 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp0-gtw0.yaml
@@ -19,4 +19,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openstack-compute-node":"enabled","openvswitch":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3-osd3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3-osd3.yaml
index d070e53..58d6128 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3-osd3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3-osd3.yaml
@@ -31,4 +31,23 @@
   gtw_metadata: {"labels": {"openvswitch":"enabled", "openstack-gateway": "enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
   osd_metadata: {"labels": {"role": "ceph-osd-node"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3.yaml
index 31b7e38..48bb590 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0-lma3.yaml
@@ -24,4 +24,25 @@
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0.yaml
index 5e64d6e..cc59dc3 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw0.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","openvswitch":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw2.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw2.yaml
index 337bf15..57f0587 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw2.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw2.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled", "openstack-gateway": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3-osd3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3-osd3.yaml
index 3fbbb6c..f8c3614 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3-osd3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3-osd3.yaml
@@ -31,4 +31,23 @@
   gtw_metadata: {"labels": {"openvswitch":"enabled", "openstack-gateway": "enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
   osd_metadata: {"labels": {"role": "ceph-osd-node"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3.yaml
index e5c6e18..342eaa4 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-gtw3-lma3.yaml
@@ -23,4 +23,25 @@
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled", "openstack-gateway": "enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml b/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml
index 644a6c5..a115c4d 100644
--- a/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr3-cmp2-ntw3-lma3-osd3.yaml
@@ -32,4 +32,23 @@
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
   osd_metadata: {"labels": {"role": "ceph-osd-node"}}
   ntw_metadata: {"labels": {"tfanalytics": "enabled", "tfconfig": "enabled", "tfcontrol": "enabled", "tfwebui": "enabled", "tfconfigdb": "enabled", "tfanalyticsdb": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/mstr3-wrkr6-cmp3-osd3.yaml b/de/heat-templates/env/mstr3-wrkr6-cmp3-osd3.yaml
index edd63d7..ad1043a 100644
--- a/de/heat-templates/env/mstr3-wrkr6-cmp3-osd3.yaml
+++ b/de/heat-templates/env/mstr3-wrkr6-cmp3-osd3.yaml
@@ -31,4 +31,23 @@
   gtw_metadata: {"labels": {"openvswitch":"enabled", "openstack-gateway": "enabled"}}
   lma_metadata: {"labels": {"role": "stacklight", "stacklight": "enabled"}}
   osd_metadata: {"labels": {"role": "ceph-osd-node"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/env/telco.yaml b/de/heat-templates/env/telco.yaml
index 337bf15..57f0587 100644
--- a/de/heat-templates/env/telco.yaml
+++ b/de/heat-templates/env/telco.yaml
@@ -22,4 +22,25 @@
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","role":"ceph-osd-node"}}
   cmp_metadata: {"labels": {"openstack-compute-node":"enabled","openvswitch":"enabled", "role":"ceph-osd-node"}}
   gtw_metadata: {"labels": {"openvswitch":"enabled", "openstack-gateway": "enabled"}}
-  hardware_metadata: ''
+  # hardware_metadata which is used for Ceph requires flavor with
+  # ephemeral storage because it is used for Ceph bluestore.
+  workers_flavor: 'system.compact.openstack.control.ephemeral'
+  cmps_flavor: 'system.compact.openstack.control.ephemeral'
+  hardware_metadata: |
+    '00:00:00:00:00:00':
+      write_files:
+        - path: /usr/share/metadata/ceph.yaml
+          content: |
+            storageDevices:
+              - name: vdb
+                role: hdd
+                sizeGb: 20
+            ram: 8
+            cores: 2
+            # The roles will be assigned based on node labels.
+            # roles:
+            #   - mon
+            #   - mgr
+            ips:
+              - 192.168.122.101
+            crushPath: {}
diff --git a/de/heat-templates/scripts/instance_boot.sh b/de/heat-templates/scripts/instance_boot.sh
index 963788a..a021c82 100644
--- a/de/heat-templates/scripts/instance_boot.sh
+++ b/de/heat-templates/scripts/instance_boot.sh
@@ -324,8 +324,11 @@
 # For example netplan.io metadata, the restart of services
 # is not covered by script.
 function prepare_metadata_files {
+    local ceph_osd_node
+    ceph_osd_node=$(kubectl get nodes -l role=ceph-osd-node -o jsonpath={.items[?\(@.metadata.name==\"$(hostname)\"\)].metadata.name})
+
     /usr/sbin/prepare-metadata.py  --metadata-file /usr/share/metadata/lab-metadata.yaml
-    if [[ -f /usr/share/metadata/ceph.yaml ]]; then
+    if [[ -f /usr/share/metadata/ceph.yaml && ${ceph_osd_node} ]]; then
         HW_METADATA="{\"ceph\": {\"$(hostname)\": \"$(base64 -w 0 /usr/share/metadata/ceph.yaml)\"}}"
     fi
 }
@@ -342,7 +345,6 @@
 
 case "$NODE_TYPE" in
     ucp)
-        prepare_metadata_files
         prepare_network
         update_docker_network
         install_required_packages
@@ -357,9 +359,9 @@
         workaround_default_forward_policy
         wait_for_node
         set_node_labels
+        prepare_metadata_files
         ;;
     master)
-        prepare_metadata_files
         prepare_network
         update_docker_network
         install_required_packages
@@ -371,9 +373,9 @@
         workaround_default_forward_policy
         wait_for_node
         set_node_labels
+        prepare_metadata_files
         ;;
     worker)
-        prepare_metadata_files
         prepare_network
         update_docker_network
         install_required_packages
@@ -386,6 +388,7 @@
         workaround_default_forward_policy
         wait_for_node
         set_node_labels
+        prepare_metadata_files
         ;;
     spare)
         prepare_metadata_files