Make Cinder with iSCSI use fewer volumes

These are not used by the relevant daemons and so can be dropped to,
e.g., avoid creating the cinder volume on hosts where there is no
cinder.

Change-Id: Ia8d906a9e0227f361883a7ec1ec8dcd73e4104dc

ansible/roles/iscsi/defaults/main.yml

@@ -45,7 +45,6 @@ iscsid_default_volumes:
   - "/run/:/run/:shared"
   - "/lib/modules:/lib/modules:ro"
   - "/sys/kernel/config:/configfs"
-  - "cinder:/var/lib/cinder"
   - "iscsi_info:/etc/iscsi"
 tgtd_default_volumes:
   - "{{ node_config_directory }}/tgtd/:{{ container_config_directory }}/:ro"
@@ -56,8 +55,6 @@ tgtd_default_volumes:
   - "/run/:/run/:shared"
   - "/lib/modules:/lib/modules:ro"
   - "/sys/kernel/config:/configfs"
-  - "cinder:/var/lib/cinder"
-  - "iscsi_info:/etc/iscsi"
 iscsid_extra_volumes: "{{ default_extra_volumes }}"
 tgtd_extra_volumes: "{{ default_extra_volumes }}"
 

ansible/roles/multipathd/defaults/main.yml

@@ -26,6 +26,4 @@ multipathd_default_volumes:
   - "/run/:/run/:shared"
   - "/lib/modules:/lib/modules:ro"
   - "/sys/kernel/config:/configfs"
-  - "cinder:/var/lib/cinder"
-  - "iscsi_info:/etc/iscsi"
 multipathd_extra_volumes: "{{ default_extra_volumes }}"