Add container-reconciler and object-expirer to os-swift

The container-reconciler and object-expirer were missing from the os-swift
role. The reconciler  makes sure incorrectly placed objets live in the
correct storage policy. The expirer is the service that deletes expired objects.

This change also adds the abilty to optionally specify a reclaim_age in the swift
section of the configuration, which is now set in all the locations required,
still with the default of 604800 seconds (7 days).

Change-Id: Ic56a714c3fb3c84b9bb5ed8e2ae3c86dad474161
Closes-Bug: #1516877

defaults/main.yml

@@ -118,9 +118,11 @@ swift_account_replicator_program_config_options: /etc/swift/account-server/accou
 
 swift_container_server_program_config_options: /etc/swift/container-server/container-server.conf
 swift_container_replicator_program_config_options: /etc/swift/container-server/container-server-replicator.conf
+swift_container_reconciler_program_config_options: /etc/swift/container-server/container-reconciler.conf
 
 swift_object_server_program_config_options: /etc/swift/object-server/object-server.conf
 swift_object_replicator_program_config_options: /etc/swift/object-server/object-server-replicator.conf
+swift_object_expirer_program_config_options: /etc/swift/object-server/object-expirer.conf
 
 swift_proxy_server_program_config_options: /etc/swift/proxy-server/proxy-server.conf
 
@@ -221,6 +223,7 @@ swift_container_program_names:
   - swift-container-sync
   - swift-container-updater
   - swift-container-replicator-server
+  - swift-container-reconciler
 
 swift_object_program_names:
   - swift-object-server
@@ -228,6 +231,7 @@ swift_object_program_names:
   - swift-object-replicator
   - swift-object-updater
   - swift-object-replicator-server
+  - swift-object-expirer
 
 swift_proxy_program_names:
   - swift-proxy-server
@@ -239,6 +243,8 @@ swift_proxy_server_conf_overrides: {}
 swift_account_server_conf_overrides: {}
 swift_account_server_replicator_conf_overrides: {}
 swift_container_server_conf_overrides: {}
+swift_container_reconciler_conf_overrides: {}
 swift_container_server_replicator_conf_overrides: {}
 swift_object_server_conf_overrides: {}
+swift_object_expirer_conf_overrides: {}
 swift_object_server_replicator_conf_overrides: {}

tasks/swift_storage_hosts_container.yml

@@ -88,6 +88,15 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
+- include: swift_upstart_common_init.yml
+  vars:
+    program_name: "swift-container-reconciler"
+    program_config_options: "{{ swift_container_reconciler_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 }}"
+
 - name: "Swift container server configuration"
   config_template:
     src: "{{ item.src }}"
@@ -102,6 +111,10 @@
       dest: "/etc/swift/container-server/container-server.conf"
       config_overrides: "{{ swift_container_server_conf_overrides }}"
       config_type: "ini"
+    - src: "container-reconciler.conf.j2"
+      dest: "/etc/swift/container-server/container-reconciler.conf"
+      config_overrides: "{{ swift_container_reconciler_conf_overrides }}"
+      config_type: "ini"
   notify: Restart swift container services
 
 # We only create the dedicated replicator configuration when using a dedicated replication_network

tasks/swift_storage_hosts_object.yml

@@ -79,6 +79,15 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
+- include: swift_upstart_common_init.yml
+  vars:
+    program_name: "swift-object-expirer"
+    program_config_options: "{{ swift_object_expirer_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 }}"
+
 - name: "Swift object server configuration"
   config_template:
     src: "{{ item.src }}"
@@ -93,6 +102,10 @@
       dest: "/etc/swift/object-server/object-server.conf"
       config_overrides: "{{ swift_object_server_conf_overrides }}"
       config_type: "ini"
+    - src: "object-expirer.conf.j2"
+      dest: "/etc/swift/object-server/object-expirer.conf"
+      config_overrides: "{{ swift_object_expirer_conf_overrides }}"
+      config_type: "ini"
   notify: Restart swift object services
 
 # We only create the dedicated replicator configuration when using a dedicated replication_network

templates/account-server-replicator.conf.j2

@@ -21,3 +21,4 @@ replication_server = True
 [account-replicator]
 log_facility = LOG_LOCAL2
 per_diff = 10000
+reclaim_age = {{ reclaim_age | default(604800) }}

templates/account-server.conf.j2

@@ -32,6 +32,7 @@ recon_lock_path = /var/lock
 [account-replicator]
 log_facility = LOG_LOCAL2
 per_diff = 10000
+reclaim_age = {{ reclaim_age | default(604800) }}
 {% endif %}
 
 [account-auditor]

templates/container-reconciler.conf.j2

@@ -0,0 +1,29 @@
+[DEFAULT]
+swift_dir = /etc/swift
+user = {{ swift_system_user_name }}
+log_facility = LOG_LOCAL3
+
+[container-reconciler]
+# The reconciler will re-attempt reconciliation if the source object is not
+# available up to reclaim_age seconds before it gives up and deletes the entry
+# in the queue.
+reclaim_age = {{ reclaim_age | default(604800) }}
+# The cycle time of the daemon
+interval = 30
+# Server errors from requests will be retried by default
+request_tries = 3
+
+[pipeline:main]
+pipeline = catch_errors proxy-logging cache proxy-server
+
+[app:proxy-server]
+use = egg:swift#proxy
+
+[filter:cache]
+use = egg:swift#memcache
+
+[filter:proxy-logging]
+use = egg:swift#proxy_logging
+
+[filter:catch_errors]
+use = egg:swift#catch_errors

templates/container-server-replicator.conf.j2

@@ -20,3 +20,4 @@ replication_server = True
 
 [container-replicator]
 log_facility = LOG_LOCAL3
+reclaim_age = {{ reclaim_age | default(604800) }}

templates/container-server.conf.j2

@@ -32,6 +32,7 @@ recon_lock_path = /var/lock
 {% if swift.replication_network is not defined or swift.replication_network == swift.storage_network %}
 [container-replicator]
 log_facility = LOG_LOCAL3
+reclaim_age = {{ reclaim_age | default(604800) }}
 {% endif %}
 
 [container-updater]

templates/object-expirer.conf.j2

@@ -0,0 +1,50 @@
+# {{ ansible_managed }}
+
+[DEFAULT]
+swift_dir = /etc/swift
+user = {{ swift_system_user_name }}
+log_facility = LOG_LOCAL4
+
+[object-expirer]
+interval = 300
+auto_create_account_prefix = .
+expiring_objects_account_name = expiring_objects
+report_interval = 300
+# concurrency is the level of concurrency to use to do the work, this value
+# must be set to at least 1
+concurrency = 3
+# processes is how many parts to divide the work into, one part per process
+#   that will be doing the work
+# processes set 0 means that a single process will be doing all the work
+# processes can also be specified on the command line and will override the
+#   config value
+processes = {{ groups['swift_hosts'] | length }}
+# process is which of the parts a particular process will work on
+# process can also be specified on the command line and will override the config
+#   value
+# process is "zero based", if you want to use 3 processes, you should run
+#  processes with process set to 0, 1, and 2
+process = {{ groups['swift_hosts'].index(inventory_hostname) }}
+# The expirer will re-attempt expiring if the source object is not available
+# up to reclaim_age seconds before it gives up and deletes the entry in the
+# queue.
+reclaim_age = {{ reclaim_age | default(604800) }}
+recon_cache_path = /var/cache/swift
+
+[pipeline:main]
+pipeline = catch_errors proxy-logging cache proxy-server
+
+[app:proxy-server]
+use = egg:swift#proxy
+# See proxy-server.conf-sample for options
+
+[filter:cache]
+use = egg:swift#memcache
+# See proxy-server.conf-sample for options
+
+[filter:catch_errors]
+use = egg:swift#catch_errors
+# See proxy-server.conf-sample for options
+
+[filter:proxy-logging]
+use = egg:swift#proxy_logging

templates/object-server-replicator.conf.j2

@@ -21,3 +21,4 @@ replication_server = True
 [object-replicator]
 log_facility = LOG_LOCAL4
 concurrency = 6
+reclaim_age = {{ reclaim_age | default(604800) }}

templates/object-server.conf.j2

@@ -34,6 +34,7 @@ recon_lock_path = /var/lock
 [object-replicator]
 log_facility = LOG_LOCAL4
 concurrency = 6
+reclaim_age = {{ reclaim_age | default(604800) }}
 {% endif %}
 
 [object-updater]