Make glance filesystem_store_datadir configurable.

User can use custom directory to store images.
For example using a shared file system as backend.

Change-Id: Iab7a9a51e619bdbf8f7bd4626ebe4d703e6d4819

ansible/group_vars/all.yml

@@ -471,6 +471,7 @@ keystone_default_user_role: "_member_"
 glance_backend_file: "{{ not enable_ceph | bool }}"
 glance_backend_ceph: "{{ enable_ceph }}"
 glance_backend_vmware: "no"
+glance_file_datadir_volume: "glance"
 
 #######################
 # Ceilometer options

ansible/roles/destroy/tasks/cleanup_host.yml

@@ -3,6 +3,7 @@
   command: >
     env enable_haproxy={{ enable_haproxy }}
         enable_swift={{ enable_swift }}
+        glance_file_datadir_volume={{ glance_file_datadir_volume }}
         kolla_internal_vip_address={{ kolla_internal_vip_address }}
         kolla_external_vip_address={{ kolla_external_vip_address }}
         kolla_dev_repos_directory={{ kolla_dev_repos_directory }}

ansible/roles/glance/defaults/main.yml

@@ -10,7 +10,7 @@ glance_services:
     volumes:
       - "{{ node_config_directory }}/glance-api/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
-      - "glance:/var/lib/glance/"
+      - "{{ glance_file_datadir_volume }}:/var/lib/glance/"
       - "kolla_logs:/var/log/kolla/"
   glance-registry:
     container_name: glance_registry

tools/cleanup-host

@@ -51,6 +51,11 @@ if [[ "$enable_swift" == "yes" ]]; then
     sed -i '/\/srv\/node\//d' /etc/fstab
 fi
 
+if [[ "$glance_file_datadir_volume" != "glance" && -d "$glance_file_datadir_volume" ]]; then
+    echo "Removing glance volume if it is customzied"
+    rm -rfv  $glance_file_datadir_volume
+fi
+
 echo "Getting folders name..."
 FOLDER_PATH="/etc/kolla/"
 for dir in $FOLDER_PATH*; do