Ensure replication_network is not required for swift

* Adjust config location variables for account, container, object
variables, to name them more clearly.
* Adjust config placement order, to happen after init scripts are
created so that the service restart handler will work appropriately.
* Ensure the init scripts for the replicator service are created
appropriately whether a dedicated replication_network is or isn't used.
* Ensure the dedicated replication network configuration is only created
when replication_network is specified and different to storage_network.
* Ensure the appropriate configuration section in the server.conf is
only added when the replication_network is specified and different to
the storage_network.

Change-Id: I4b204a974bb0a217f5222b6aa0fa36aa8c23b999
Closes-Bug: #1427599

defaults/main.yml

@@ -67,13 +67,13 @@ swift_service_admin_tenant_name: "service"
 swift_service_admin_username: "swift"
 
 swift_account_server_program_config_options: /etc/swift/account-server/account-server.conf
-swift_account_server_replicator_program_config_options: /etc/swift/account-server/account-server-replicator.conf
+swift_account_replicator_program_config_options: /etc/swift/account-server/account-server-replicator.conf
 
 swift_container_server_program_config_options: /etc/swift/container-server/container-server.conf
-swift_container_server_replicator_program_config_options: /etc/swift/container-server/container-server-replicator.conf
+swift_container_replicator_program_config_options: /etc/swift/container-server/container-server-replicator.conf
 
 swift_object_server_program_config_options: /etc/swift/object-server/object-server.conf
-swift_object_server_replicator_program_config_options: /etc/swift/object-server/object-server-replicator.conf
+swift_object_replicator_program_config_options: /etc/swift/object-server/object-server-replicator.conf
 
 swift_proxy_server_program_config_options: /etc/swift/proxy-server/proxy-server.conf
 

tasks/swift_proxy_hosts.yml

@@ -13,14 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: swift proxy server configuration
-  template:
-    src: "proxy-server.conf.j2"
-    dest: "/etc/swift/proxy-server/proxy-server.conf"
-    owner: "{{ swift_system_user_name }}"
-    mode: "0644"
-  notify: Restart swift services
-
 - include: swift_upstart_common_init.yml
   vars:
     program_name: "swift-proxy-server"
@@ -29,3 +21,11 @@
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
+
+- name: swift proxy server configuration
+  template:
+    src: "proxy-server.conf.j2"
+    dest: "/etc/swift/proxy-server/proxy-server.conf"
+    owner: "{{ swift_system_user_name }}"
+    mode: "0644"
+  notify: Restart swift services

tasks/swift_storage_hosts_account.yml

@@ -13,34 +13,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: "Swift account server config with replication"
-  template:
-    src: "{{ item.src }}"
-    dest: "{{ item.dest }}"
-    owner: "{{ swift_system_user_name }}"
-    group: "{{ swift_system_group_name }}"
-    mode: "0644"
-  with_items:
-    - { src: "account-server.conf.j2", dest: "/etc/swift/account-server/account-server.conf" }
-    - { src: "account-server-replicator.conf.j2", dest: "/etc/swift/account-server/account-server-replicator.conf" }
-  notify: Restart swift services
-
+# When not using a replication network use the default configuration
 - include: swift_upstart_common_init.yml
   vars:
-    program_name: "swift-account-server-replicator"
-    program_config_options: "{{ swift_account_server_replicator_program_config_options }}"
+    program_name: "swift-account-replicator"
+    program_config_options: "{{ swift_account_server_program_config_options }}"
     service_name: "{{ swift_service_name }}"
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
   when: >
-    swift.replication_network is defined and
-    swift.replication_network != swift.storage_network
+    swift.replication_network is not defined or
+    swift.replication_network == swift.storage_network
 
+# When using a replication network use the specific replicator configuration
 - include: swift_upstart_common_init.yml
   vars:
     program_name: "swift-account-replicator"
-    program_config_options: "{{ swift_account_server_replicator_program_config_options }}"
+    program_config_options: "{{ swift_account_replicator_program_config_options }}"
     service_name: "{{ swift_service_name }}"
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
@@ -75,3 +65,29 @@
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
+
+- name: "Swift account server configuration"
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+    mode: "0644"
+  with_items:
+    - { src: "account-server.conf.j2", dest: "/etc/swift/account-server/account-server.conf" }
+  notify: Restart swift services
+
+# We only create the dedicated replicator configuration when using a dedicated replication_network
+- name: "Swift account server replicator configuration"
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+    mode: "0644"
+  with_items:
+    - { src: "account-server-replicator.conf.j2", dest: "/etc/swift/account-server/account-server-replicator.conf" }
+  when: >
+    swift.replication_network is defined and
+    swift.replication_network != swift.storage_network
+  notify: Restart swift services

tasks/swift_storage_hosts_container.yml

@@ -13,34 +13,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: "Swift container server configuration"
-  template:
-    src: "{{ item.src }}"
-    dest: "{{ item.dest }}"
-    owner: "{{ swift_system_user_name }}"
-    group: "{{ swift_system_group_name }}"
-    mode: "0644"
-  with_items:
-    - { src: "container-server.conf.j2", dest: "/etc/swift/container-server/container-server.conf" }
-    - { src: "container-server-replicator.conf.j2", dest: "/etc/swift/container-server/container-server-replicator.conf" }
-  notify: Restart swift services
-
+# When not using a replication network use the default configuration
 - include: swift_upstart_common_init.yml
   vars:
-    program_name: "swift-container-server-replicator"
-    program_config_options: "{{ swift_container_server_replicator_program_config_options }}"
+    program_name: "swift-container-replicator"
+    program_config_options: "{{ swift_container_server_program_config_options }}"
     service_name: "{{ swift_service_name }}"
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
   when: >
-    swift.replication_network is defined and
-    swift.replication_network != swift.storage_network
+    swift.replication_network is not defined or
+    swift.replication_network == swift.storage_network
 
+# When using a replication network use the specific replicator configuration
 - include: swift_upstart_common_init.yml
   vars:
     program_name: "swift-container-replicator"
-    program_config_options: "{{ swift_container_server_replicator_program_config_options }}"
+    program_config_options: "{{ swift_container_replicator_program_config_options }}"
     service_name: "{{ swift_service_name }}"
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
@@ -84,3 +74,29 @@
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
+
+- name: "Swift container server configuration"
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+    mode: "0644"
+  with_items:
+    - { src: "container-server.conf.j2", dest: "/etc/swift/container-server/container-server.conf" }
+  notify: Restart swift services
+
+# We only create the dedicated replicator configuration when using a dedicated replication_network
+- name: "Swift container server configuration"
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+    mode: "0644"
+  with_items:
+    - { src: "container-server-replicator.conf.j2", dest: "/etc/swift/container-server/container-server-replicator.conf" }
+  when: >
+    swift.replication_network is defined and
+    swift.replication_network != swift.storage_network
+  notify: Restart swift services

tasks/swift_storage_hosts_object_server.yml

@@ -13,34 +13,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: "Swift object server configuration"
-  template:
-    src: "{{ item.src }}"
-    dest: "{{ item.dest }}"
-    owner: "{{ swift_system_user_name }}"
-    group: "{{ swift_system_group_name }}"
-    mode: "0644"
-  with_items:
-    - { src: "object-server.conf.j2", dest: "/etc/swift/object-server/object-server.conf" }
-    - { src: "object-server-replicator.conf.j2", dest: "/etc/swift/object-server/object-server-replicator.conf" }
-  notify: Restart swift services
-
+# When not using a replication network use the default configuration
 - include: swift_upstart_common_init.yml
   vars:
-    program_name: "swift-object-server-replicator"
-    program_config_options: "{{ swift_object_server_replicator_program_config_options }}"
+    program_name: "swift-object-replicator"
+    program_config_options: "{{ swift_object_server_program_config_options }}"
     service_name: "{{ swift_service_name }}"
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
   when: >
-    swift.replication_network is defined and
-    swift.replication_network != swift.storage_network
+    swift.replication_network is not defined or
+    swift.replication_network == swift.storage_network
 
+# When using a replication network use the specific replicator configuration
 - include: swift_upstart_common_init.yml
   vars:
     program_name: "swift-object-replicator"
-    program_config_options: "{{ swift_object_server_replicator_program_config_options }}"
+    program_config_options: "{{ swift_object_replicator_program_config_options }}"
     service_name: "{{ swift_service_name }}"
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
@@ -75,3 +65,29 @@
     system_user: "{{ swift_system_user_name }}"
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
+
+- name: "Swift object server configuration"
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+    mode: "0644"
+  with_items:
+    - { src: "object-server.conf.j2", dest: "/etc/swift/object-server/object-server.conf" }
+  notify: Restart swift services
+
+# We only create the dedicated replicator configuration when using a dedicated replication_network
+- name: "Swift object server configuration"
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: "{{ swift_system_user_name }}"
+    group: "{{ swift_system_group_name }}"
+    mode: "0644"
+  with_items:
+    - { src: "object-server-replicator.conf.j2", dest: "/etc/swift/object-server/object-server-replicator.conf" }
+  when: >
+    swift.replication_network is defined and
+    swift.replication_network != swift.storage_network
+  notify: Restart swift services

templates/account-server.conf.j2

@@ -33,7 +33,7 @@ log_facility = LOG_LOCAL2
 recon_cache_path = /var/cache/swift
 recon_lock_path = /var/lock/swift
 
-{% if swift.replication_network is not defined %}
+{% if swift.replication_network is not defined or swift.replication_network == swift.storage_network %}
 [account-replicator]
 log_facility = LOG_LOCAL2
 per_diff = 10000

templates/container-server.conf.j2

@@ -33,7 +33,7 @@ log_facility = LOG_LOCAL3
 recon_cache_path = /var/cache/swift
 recon_lock_path = /var/lock/swift
 
-{% if swift.replication_network is not defined %}
+{% if swift.replication_network is not defined or swift.replication_network == swift.storage_network %}
 [container-replicator]
 log_facility = LOG_LOCAL3
 {% endif %}

templates/object-server.conf.j2

@@ -35,7 +35,7 @@ log_facility = LOG_LOCAL4
 recon_cache_path = /var/cache/swift
 recon_lock_path = /var/lock/swift
 
-{% if swift.replication_network is not defined %}
+{% if swift.replication_network is not defined or swift.replication_network == swift.storage_network %}
 [object-replicator]
 log_facility = LOG_LOCAL4
 concurrency = 6