Check enable_cinder before deploy iscsi and tgtd

Add check enable_cinder to iscsi and tgtd deploy logic.

The ironic check is not effected.

Change-Id: If14ae52fbacf106b112e40a813ad6143cb095edc
Closes-Bug: #1742873

ansible/roles/iscsi/tasks/config.yml

@@ -4,7 +4,7 @@
     path: "{{ node_config_directory }}/{{ item }}"
     state: "directory"
     recurse: yes
-  when: ( ( inventory_hostname in groups['compute'] or inventory_hostname in groups['cinder-volume'] ) and enable_cinder_backend_iscsi | bool )
+  when: ( ( inventory_hostname in groups['compute'] or inventory_hostname in groups['cinder-volume'] ) and enable_cinder | bool and enable_cinder_backend_iscsi | bool )
          or ( inventory_hostname in groups['ironic-conductor'] and enable_ironic | bool )
   with_items:
     - "iscsid"
@@ -13,7 +13,7 @@
   template:
     src: "{{ item }}.json.j2"
     dest: "{{ node_config_directory }}/{{ item }}/config.json"
-  when: ( ( inventory_hostname in groups['compute'] or inventory_hostname in groups['cinder-volume'] ) and enable_cinder_backend_iscsi | bool )
+  when: ( ( inventory_hostname in groups['compute'] or inventory_hostname in groups['cinder-volume'] ) and enable_cinder | bool and enable_cinder_backend_iscsi | bool )
          or ( inventory_hostname in groups['ironic-conductor'] and enable_ironic | bool )
   with_items:
     - "iscsid"

ansible/roles/iscsi/tasks/start.yml

@@ -18,7 +18,7 @@
       - "/sys/kernel/config:/configfs"
       - "cinder:/var/lib/cinder"
       - "iscsi_info:/etc/iscsi"
-  when: ( ( inventory_hostname in groups['compute'] or inventory_hostname in groups['cinder-volume'] ) and enable_cinder_backend_iscsi | bool )
+  when: ( ( inventory_hostname in groups['compute'] or inventory_hostname in groups['cinder-volume'] ) and enable_cinder | bool and enable_cinder_backend_iscsi | bool  )
          or ( inventory_hostname in groups['ironic-conductor'] and enable_ironic | bool )
 
 - name: Starting tgtd container
@@ -42,4 +42,5 @@
       - "iscsi_info:/etc/iscsi"
   when:
     - inventory_hostname in groups['tgtd']
+    - enable_cinder | bool
     - enable_cinder_backend_lvm | bool