Generate hostnqn

hostnqn is generated using to_uuid filter

Usually "nvme gen-hostnqn" command is used to generate
hostnqn, and it has the format of:
nqn.2014-08.org.nvmexpress:uuid:67dc8c8e-0262-4d81-ac51-ace7c25e4daa

"nqn.2014-08.org.nvmexpress:uuid:" is always static

Closes-Bug: #2035975

Change-Id: I6ece4fe8c18c0167a2707c24693fbe39ed15cdba

ansible/roles/cinder/tasks/config.yml

@@ -92,6 +92,21 @@
   notify:
     - "Restart {{ item.key }} container"
 
+- name: Generating 'hostnqn' file for cinder_volume
+  vars:
+    service: "{{ cinder_services['cinder-volume'] }}"
+    hostnqn: "nqn.2014-08.org.nvmexpress:uuid:{{ ansible_facts.hostname | to_uuid }}"
+  template:
+    src: "templates/hostnqn.j2"
+    dest: "{{ node_config_directory }}/cinder-volume/hostnqn"
+    mode: "0660"
+  become: true
+  when:
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+  notify:
+    - Restart cinder-volume container
+
 - name: Copying over existing policy file
   become: true
   template:

ansible/roles/cinder/templates/cinder-volume.json.j2

@@ -19,6 +19,12 @@
             "owner": "cinder",
             "perm": "0600",
             "optional": {{ (not enable_cinder_backend_nfs | bool) | string | lower }}
+        },
+        {
+            "source": "{{ container_config_directory }}/hostnqn",
+            "dest": "/etc/nvme/hostnqn",
+            "owner": "root",
+            "perm": "0644"
         }{% if cinder_policy_file is defined %},
         {
             "source": "{{ container_config_directory }}/{{ cinder_policy_file }}",

ansible/roles/cinder/templates/hostnqn.j2

@@ -0,0 +1 @@
+{{ hostnqn }}

ansible/roles/nova-cell/tasks/config.yml

@@ -187,6 +187,21 @@
   notify:
     - Restart nova-compute container
 
+- name: Generating 'hostnqn' file for nova_compute
+  vars:
+    hostnqn: "nqn.2014-08.org.nvmexpress:uuid:{{ ansible_facts.hostname | to_uuid }}"
+    service: "{{ nova_cell_services['nova-compute'] }}"
+  template:
+    src: "templates/hostnqn.j2"
+    dest: "{{ node_config_directory }}/nova-compute/hostnqn"
+    mode: "0660"
+  become: true
+  when:
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+  notify:
+    - Restart nova-compute container
+
 - name: Copying over existing policy file
   become: true
   template:

ansible/roles/nova-cell/templates/hostnqn.j2

@@ -0,0 +1 @@
+{{ hostnqn }}

ansible/roles/nova-cell/templates/nova-compute.json.j2

@@ -55,6 +55,12 @@
             "owner": "nova",
             "perm": "0600",
             "optional": true
+        },
+        {
+            "source": "{{ container_config_directory }}/hostnqn",
+            "dest": "/etc/nvme/hostnqn",
+            "owner": "root",
+            "perm": "0644"
         }{% if nova_compute_virt_type in ['kvm', 'qemu'] and libvirt_enable_sasl | bool %},
         {
             "source": "{{ container_config_directory }}/auth.conf",