Iscsid container fails to start on storage node when cinder is enabled

When the iscsid containers is included in the kolla deployment it starts
successfully on a compute node but fails to start on a storage node, if
cinder is enabled because the config file is not copied to the container
BTW, if cinder is not enabled the iscsid container starts successfully
on both the compute and storage nodes.

Change-Id: I665535d858affebc9623b29f79c89c18f7cc399f
Closes-Bug: #1629381

ansible/roles/iscsi/tasks/config.yml

@@ -4,7 +4,8 @@
     path: "{{ node_config_directory }}/{{ item }}"
     state: "directory"
     recurse: yes
-  when: inventory_hostname in groups['compute']
+  when: inventory_hostname in groups['compute'] or
+        inventory_hostname in groups['storage']
   with_items:
     - "iscsid"
 
@@ -12,7 +13,8 @@
   template:
     src: "{{ item }}.json.j2"
     dest: "{{ node_config_directory }}/{{ item }}/config.json"
-  when: inventory_hostname in groups['compute']
+  when: inventory_hostname in groups['compute'] or
+        inventory_hostname in groups['storage']
   with_items:
     - "iscsid"