Implement Ubuntu 16.04 Xenial support

This change adds suport for Ubuntu 16.04 with SystemD
while keeping the support for Ubuntu 14.04 with upstart.

Implements: blueprint support-ubuntu-1604
Change-Id: Iffed984d6c2c881cbac31919dc805b6122dd4f3f

meta/main.yml

@@ -4,11 +4,12 @@ galaxy_info:
   description: Installation and setup of sahara
   company: LSD/UFCG
   license: Apache2
-  min_ansible_version: 1.6.6
+  min_ansible_version: 1.9.4
   platforms:
     - name: Ubuntu
       versions:
         - trusty
+        - xenial
   categories:
     - cloud
     - python

tasks/main.yml

@@ -20,10 +20,22 @@
   tags:
     - always
 
+- 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
+
 - include: sahara_pre_install.yml
 - include: sahara_install.yml
 - include: sahara_post_install.yml
-- include: sahara_upstart_init.yml
+- include: sahara_init.yml
 
 - include: sahara_db_setup.yml
   when: >

tasks/sahara_init.yml

@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- include: sahara_upstart_common_init.yml
+- include: sahara_init_common.yml
   vars:
     program_name: "{{ sahara_api_program_name }}"
     service_name: "{{ sahara_service_name }}"
@@ -19,7 +19,7 @@
     system_group: "{{ sahara_system_group_name }}"
     service_home: "{{ sahara_system_user_home }}"
 
-- include: sahara_upstart_common_init.yml
+- include: sahara_init_common.yml
   vars:
     program_name: "{{ sahara_engine_program_name }}"
     service_name: "{{ sahara_service_name }}"

tasks/sahara_init_common.yml

@@ -0,0 +1,29 @@
+---
+# 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: sahara_init_upstart.yml
+  when: pid1_name == "init"
+  tags:
+    - sahara-init
+
+- include: sahara_init_systemd.yml
+  when: pid1_name == "systemd"
+  tags:
+    - sahara-init
+
+- name: Load service
+  service:
+   name: "{{ program_name }}"
+   enabled: "yes"
+  notify:
+    - Restart sahara services

tasks/sahara_init_systemd.yml

@@ -0,0 +1,49 @@
+
+---
+# Copyright 2016, 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 sahara 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" }
+
+- name: Create tempfile.d entry
+  template:
+    src: "sahara-systemd-tempfiles.j2"
+    dest: "/etc/tmpfiles.d/sahara.conf"
+    mode: "0644"
+    owner: "root"
+    group: "root"
+
+- name: Place the systemd init script
+  template:
+    src: "sahara-systemd-init.j2"
+    dest: "/etc/systemd/system/{{ program_name }}.service"
+    mode: "0644"
+    owner: "root"
+    group: "root"
+  register: systemd_init
+
+- name: Reload the systemd daemon
+  command: "systemctl daemon-reload"
+  when: systemd_init | changed
+  notify:
+    - Restart sahara services

tasks/sahara_init_upstart.yml

@@ -18,27 +18,13 @@
     mode: "0644"
     owner: "root"
     group: "root"
+  register: upstart_init
   notify:
     - Restart sahara services
-  tags:
-    - upstart-init
-    - sahara-init
 
 - name: Reload init scripts
   shell: |
     initctl reload-configuration
+  when: upstart_init | changed
   notify:
     - Restart sahara services
-  tags:
-    - upstart-init
-    - sahara-init
-
-- name: Load service
-  service:
-   name: "{{ program_name }}"
-   enabled: "yes"
-  notify:
-    - Restart sahara services
-  tags:
-    - upstart-init
-    - sahara-init

templates/sahara-systemd-init.j2

@@ -0,0 +1,25 @@
+# {{ ansible_managed }}
+
+[Unit]
+Description=sahara 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('') }} --log-file=/var/log/sahara/{{ program_name }}.log
+{% else %}
+ExecStart={{ sahara_bin }}/{{ program_name }} {{ program_config_options|default('') }} --log-file=/var/log/sahara/{{ program_name }}.log
+{% 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/sahara-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 }}

vars/ubuntu-14.04.yml

@@ -20,4 +20,3 @@ sahara_apt_packages:
   - rpcbind
   - rsync
   - git
-  - nfs-common

vars/ubuntu-16.04.yml

@@ -0,0 +1,22 @@
+# Copyright 2016, Intel Corporation.
+#
+# 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.
+
+## APT Cache options
+cache_timeout: 600
+
+# Common apt packages
+sahara_apt_packages:
+  - rpcbind
+  - rsync
+  - git