adds the config_template to swift

The change modifies the swift template tasks such that it's now
using the config_template action plugin. This change will make so that
config files can be dynamically updated, by a deployer, at run time,
without requiring the need to modify the in tree templates or defaults.

Partially implements: blueprint tunable-openstack-configuration

Change-Id: Id992937f35afa0549f9f0d0fbcf0be5e6978df57

playbooks/roles/os_swift/defaults/main.yml

@@ -187,3 +187,14 @@ swift_object_program_names:
 
 swift_proxy_program_names:
   - swift-proxy-server
+
+## Tunable overrides
+swift_swift_conf_overrides: {}
+swift_swift_dispersion_conf_overrides: {}
+swift_proxy_server_conf_overrides: {}
+swift_account_server_conf_overrides: {}
+swift_account_server_replicator_conf_overrides: {}
+swift_container_server_conf_overrides: {}
+swift_container_server_replicator_conf_overrides: {}
+swift_object_server_conf_overrides: {}
+swift_object_server_replicator_conf_overrides: {}

playbooks/roles/os_swift/tasks/swift_post_install.yml

@@ -14,15 +14,40 @@
 # limitations under the License.
 
 - name: Copy swift config
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
+    mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "swift.conf.j2", dest: "/etc/swift/swift.conf" }
+    - src: "swift.conf.j2"
-    - { src: "swift-rsyslog.conf.j2", dest: "/etc/rsyslog.d/49-swift.conf" }
+      dest: "/etc/swift/swift.conf"
-    - { src: "swift-dispersion.conf.j2", dest: "/etc/swift/dispersion.conf" }
+      config_overrides: "{{ swift_swift_conf_overrides }}"
+      config_type: "ini"
+    - src: "swift-dispersion.conf.j2"
+      dest: "/etc/swift/dispersion.conf"
+      config_overrides: "{{ swift_swift_dispersion_conf_overrides }}"
+      config_type: "ini"
+  notify:
+    - Restart swift account services
+    - Restart swift container services
+    - Restart swift object services
+    - Restart swift proxy services
+  tags:
+    - swift-config
+    - swift-post-install
+
+- name: Copy swift config
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+  with_items:
+    - { src: "swift-rsyslog.conf.j2", dest: "/etc/rsyslog.d/49-swift.conf" }
   notify:
     - Restart swift account services
     - Restart swift container services

playbooks/roles/os_swift/tasks/swift_proxy_hosts.yml

@@ -23,9 +23,17 @@
     service_home: "{{ swift_system_home_folder }}"
 
 - name: swift proxy server configuration
-  template:
+  config_template:
-    src: "proxy-server.conf.j2"
+    src: "{{ item.src }}"
-    dest: "/etc/swift/proxy-server/proxy-server.conf"
+    dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
+  with_items:
+    - src: "proxy-server.conf.j2"
+      dest: "/etc/swift/proxy-server/proxy-server.conf"
+      config_overrides: "{{ swift_proxy_server_conf_overrides }}"
+      config_type: "ini"
   notify: Restart swift proxy services

playbooks/roles/os_swift/tasks/swift_storage_hosts_account.yml

@@ -80,26 +80,36 @@
     service_home: "{{ swift_system_home_folder }}"
 
 - name: "Swift account server configuration"
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "account-server.conf.j2", dest: "/etc/swift/account-server/account-server.conf" }
+    - src: "account-server.conf.j2"
+      dest: "/etc/swift/account-server/account-server.conf"
+      config_overrides: "{{ swift_account_server_conf_overrides }}"
+      config_type: "ini"
   notify: Restart swift account services
 
 # We only create the dedicated replicator configuration when using a dedicated replication_network
 - name: "Swift account server replicator configuration"
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "account-server-replicator.conf.j2", dest: "/etc/swift/account-server/account-server-replicator.conf" }
+    - src: "account-server-replicator.conf.j2"
+      dest: "/etc/swift/account-server/account-server-replicator.conf"
+      config_overrides: "{{ swift_account_server_replicator_conf_overrides }}"
+      config_type: "ini"
   when: >
     swift.replication_network is defined and
     swift.replication_network != swift.storage_network

playbooks/roles/os_swift/tasks/swift_storage_hosts_container.yml

@@ -89,26 +89,36 @@
     service_home: "{{ swift_system_home_folder }}"
 
 - name: "Swift container server configuration"
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "container-server.conf.j2", dest: "/etc/swift/container-server/container-server.conf" }
+    - src: "container-server.conf.j2"
+      dest: "/etc/swift/container-server/container-server.conf"
+      config_overrides: "{{ swift_container_server_conf_overrides }}"
+      config_type: "ini"
   notify: Restart swift container services
 
 # We only create the dedicated replicator configuration when using a dedicated replication_network
-- name: "Swift container server configuration"
+- name: "Swift container server replicator configuration"
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "container-server-replicator.conf.j2", dest: "/etc/swift/container-server/container-server-replicator.conf" }
+    - src: "container-server-replicator.conf.j2"
+      dest: "/etc/swift/container-server/container-server-replicator.conf"
+      config_overrides: "{{ swift_container_server_replicator_conf_overrides }}"
+      config_type: "ini"
   when: >
     swift.replication_network is defined and
     swift.replication_network != swift.storage_network

playbooks/roles/os_swift/tasks/swift_storage_hosts_object.yml

@@ -80,26 +80,36 @@
     service_home: "{{ swift_system_home_folder }}"
 
 - name: "Swift object server configuration"
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "object-server.conf.j2", dest: "/etc/swift/object-server/object-server.conf" }
+    - src: "object-server.conf.j2"
+      dest: "/etc/swift/object-server/object-server.conf"
+      config_overrides: "{{ swift_object_server_conf_overrides }}"
+      config_type: "ini"
   notify: Restart swift object services
 
 # We only create the dedicated replicator configuration when using a dedicated replication_network
-- name: "Swift object server configuration"
+- name: "Swift object server replicator configuration"
-  template:
+  config_template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
     owner: "{{ swift_system_user_name }}"
     group: "{{ swift_system_group_name }}"
     mode: "0644"
+    config_overrides: "{{ item.config_overrides }}"
+    config_type: "{{ item.config_type }}"
   with_items:
-    - { src: "object-server-replicator.conf.j2", dest: "/etc/swift/object-server/object-server-replicator.conf" }
+    - src: "object-server-replicator.conf.j2"
+      dest: "/etc/swift/object-server/object-server-replicator.conf"
+      config_overrides: "{{ swift_object_server_replicator_conf_overrides }}"
+      config_type: "ini"
   when: >
     swift.replication_network is defined and
     swift.replication_network != swift.storage_network