Implement Xenial Support

This commit adds support for Ubuntu 16.04.
Primarily, this commit consists of changes
necessary to support systemd.

Change-Id: Ide0d570b508be8efaa885431598c726d7baad4f6

releasenotes/notes/add-xenial-support-e285a643a39f0438.yaml

@@ -0,0 +1,4 @@
+---
+feature:
+  - Support has been added to deploy the swift services on Ubuntu 16.04
+    LTS.

tasks/main.yml

@@ -13,6 +13,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# Detect whether the init system is upstart of systemd.
+- name: Check init system
+  command: cat /proc/1/comm
+  register: _pid1_name
+  tags:
+    - always
+
+- name: Set the name of pid1
+  set_fact:
+    pid1_name: "{{ _pid1_name.stdout }}"
+  tags:
+    - always
+
 - name: Gather variables for each operating system
   include_vars: "{{ item }}"
   with_first_found:

tasks/swift_init_common.yml

@@ -0,0 +1,35 @@
+---
+# Copyright 2014, Rackspace US, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- include: swift_init_upstart.yml
+  when: pid1_name == "init"
+  tags:
+    - upstart-init
+    - swift-init
+
+- include: swift_init_systemd.yml
+  when: pid1_name == "systemd"
+  tags:
+    - systemd-init
+    - swift-init
+
+- name: Load service
+  service:
+   name: "{{ program_name }}"
+   enabled: "yes"
+   state: restarted
+  when: init_script|changed
+  tags:
+    - swift-init

tasks/swift_init_systemd.yml

@@ -0,0 +1,58 @@
+---
+# Copyright 2014, Rackspace US, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- name: Create swift TEMP dirs
+  file:
+    path: "{{ item.path }}/{{ program_name }}"
+    state: directory
+    owner: "{{ system_user }}"
+    group: "{{ system_group }}"
+    mode: "2755"
+  with_items:
+    - { path: "/var/run" }
+    - { path: "/var/lock" }
+  tags:
+    - systemd-init
+    - swift-init
+
+- name: Create tempfile.d entry
+  template:
+    src: "swift-systemd-tempfiles.j2"
+    dest: "/etc/tmpfiles.d/swift.conf"
+    mode: "0644"
+    owner: "root"
+    group: "root"
+  tags:
+    - systemd-init
+    - swift-init
+
+- name: Place the systemd init script
+  template:
+    src: "swift-systemd-init.j2"
+    dest: "/etc/systemd/system/{{ program_name }}.service"
+    mode: "0644"
+    owner: "root"
+    group: "root"
+  register: init_script
+  tags:
+    - systemd-init
+    - swift-init
+
+- name: Reload the systemd daemon
+  command: "systemctl daemon-reload"
+  when: init_script | changed
+  tags:
+    - systemd-init
+    - swift-init

tasks/swift_init_upstart.yml

@@ -32,13 +32,3 @@
   tags:
     - upstart-init
     - swift-init
-
-- name: Load service
-  service:
-   name: "{{ program_name }}"
-   enabled: "yes"
-   state: restarted
-  when: init_script|changed
-  tags:
-    - upstart-init
-    - swift-init

tasks/swift_proxy_hosts.yml

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-proxy-server"
     program_config_options: "{{ swift_proxy_server_program_config_options }}"

tasks/swift_storage_hosts_account.yml

@@ -14,7 +14,7 @@
 # limitations under the License.
 
 # When not using a replication network use the default configuration
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-account-replicator"
     program_config_options: "{{ swift_account_server_program_config_options }}"
@@ -27,7 +27,7 @@
     swift.replication_network == swift.storage_network
 
 # When using a replication network use the specific replicator configuration
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-account-replicator"
     program_config_options: "{{ swift_account_replicator_program_config_options }}"
@@ -42,7 +42,7 @@
 # When using a replication network use a second server for dedicated replicator configuration
 # This will be a blank file if not using dedicated replication network to prevent errors
 # when the service attempts to start.
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-account-replicator-server"
     program_binary: "swift-account-server"
@@ -52,7 +52,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-account-server"
     program_config_options: "{{ swift_account_server_program_config_options }}"
@@ -61,7 +61,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-account-auditor"
     program_config_options: "{{ swift_account_server_program_config_options }}"
@@ -70,7 +70,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-account-reaper"
     program_config_options: "{{ swift_account_server_program_config_options }}"

tasks/swift_storage_hosts_container.yml

@@ -14,7 +14,7 @@
 # limitations under the License.
 
 # When not using a replication network use the default configuration
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-replicator"
     program_config_options: "{{ swift_container_server_program_config_options }}"
@@ -27,7 +27,7 @@
     swift.replication_network == swift.storage_network
 
 # When using a replication network use the specific replicator configuration
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-replicator"
     program_config_options: "{{ swift_container_replicator_program_config_options }}"
@@ -42,7 +42,7 @@
 # When using a replication network create a second server for dedicated replicator configuration
 # This will be a blank file if not using dedicated replication network to prevent errors
 # when the service attempts to start.
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-replicator-server"
     program_binary: "swift-container-server"
@@ -52,7 +52,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-server"
     program_config_options: "{{ swift_container_server_program_config_options }}"
@@ -61,7 +61,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-auditor"
     program_config_options: "{{ swift_container_server_program_config_options }}"
@@ -70,7 +70,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-sync"
     program_config_options: "{{ swift_container_server_program_config_options }}"
@@ -79,7 +79,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-updater"
     program_config_options: "{{ swift_container_server_program_config_options }}"
@@ -88,7 +88,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-container-reconciler"
     program_config_options: "{{ swift_container_reconciler_program_config_options }}"

tasks/swift_storage_hosts_object.yml

@@ -14,7 +14,7 @@
 # limitations under the License.
 
 # When not using a replication network use the default configuration
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-replicator"
     program_config_options: "{{ swift_object_server_program_config_options }}"
@@ -27,7 +27,7 @@
     swift.replication_network == swift.storage_network
 
 # When using a replication network use the specific replicator configuration
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-replicator"
     program_config_options: "{{ swift_object_replicator_program_config_options }}"
@@ -42,7 +42,7 @@
 # When using a replication network use a second server for dedicated replicator configuration
 # This will be a blank file if not using dedicated replication network to prevent errors
 # when the service attempts to start.
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-replicator-server"
     program_binary: "swift-object-server"
@@ -52,7 +52,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-server"
     program_config_options: "{{ swift_object_server_program_config_options }}"
@@ -61,7 +61,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-auditor"
     program_config_options: "{{ swift_object_server_program_config_options }}"
@@ -70,7 +70,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-updater"
     program_config_options: "{{ swift_object_server_program_config_options }}"
@@ -79,7 +79,7 @@
     system_group: "{{ swift_system_group_name }}"
     service_home: "{{ swift_system_home_folder }}"
 
-- include: swift_upstart_common_init.yml
+- include: swift_init_common.yml
   vars:
     program_name: "swift-object-expirer"
     program_config_options: "{{ swift_object_expirer_program_config_options }}"

templates/swift-systemd-init.j2

@@ -0,0 +1,25 @@
+# {{ ansible_managed }}
+
+[Unit]
+Description=swift openstack service
+After=syslog.target
+After=network.target
+
+[Service]
+Type=simple
+User={{ system_user }}
+Group={{ system_group }}
+
+{% if program_override is defined %}
+ExecStart={{ program_override }} {{ program_config_options|default('') }}
+{% else %}
+ExecStart={{ swift_bin }}/{{ program_name }} {{ program_config_options|default('') }}
+{% endif %}
+
+# Give a reasonable amount of time for the server to start up/shut down
+TimeoutSec=300
+Restart=on-failure
+RestartSec=150
+
+[Install]
+WantedBy=multi-user.target

templates/swift-systemd-tempfiles.j2

@@ -0,0 +1,4 @@
+# {{ ansible_managed }}
+
+D /var/lock/{{ program_name }} 2755 {{ system_user }} {{ system_group }}
+D /var/run/{{ program_name }} 2755 {{ system_user }} {{ system_group }}