Revert "Convert role to use a common systemd service role"

This reverts commit 2f78790cc2.

This broke master due to a problem with cinder backup which can't reload (probably an issue with its systemd service file)

See also [1], [2].

[1]: http://logs.openstack.org/periodic/git.openstack.org/openstack/openstack-ansible/master/openstack-ansible-deploy-ceph-ubuntu-xenial/e950b61/job-output.txt.gz#_2018-04-03_07_17_12_755695
[2]: http://logs.openstack.org/periodic/git.openstack.org/openstack/openstack-ansible/master/openstack-ansible-deploy-aio_lxc-ubuntu-xenial/fe598f2/job-output.txt.gz#_2018-04-03_07_17_29_341574

Change-Id: I930f7280bc668ee275d72be07d8a2c088322f653

defaults/main.yml

@@ -283,32 +283,29 @@ cinder_services:
     service_name: cinder-scheduler
     init_config_overrides: "{{ cinder_scheduler_init_overrides }}"
     start_order: 1
-    execstarts: "{{ cinder_bin }}/cinder-scheduler"
   cinder-volume:
     group: cinder_volume
     service_name: cinder-volume
     init_config_overrides: "{{ cinder_volume_init_overrides }}"
     start_order: 2
-    execstarts: "{{ cinder_bin }}/cinder-volume"
   cinder-backup:
     group: cinder_backup
     service_name: cinder-backup
     condition: "{{ cinder_service_backup_program_enabled | bool }}"
     init_config_overrides: "{{ cinder_backup_init_overrides }}"
     start_order: 3
-    execstarts: "{{ cinder_bin }}/cinder-backup"
   cinder-api:
     group: cinder_api
     service_name: cinder-api
     init_config_overrides: "{{ cinder_api_init_overrides }}"
-    start_order: 4
     wsgi_overrides: "{{ cinder_api_uwsgi_ini_overrides }}"
     wsgi_app: True
+    log_string: "--logto "
     wsgi_name: cinder-wsgi
     uwsgi_port: "{{ cinder_service_port }}"
     uwsgi_bind_address: "{{ cinder_uwsgi_bind_address }}"
-    execstarts: "{{ cinder_bin }}/uwsgi --ini /etc/uwsgi/cinder-api.ini"
-    execreloads: "{{ cinder_bin }}/uwsgi --reload /var/run/cinder-api/cinder-api.pid"
+    program_override: "{{ cinder_bin }}/uwsgi --ini /etc/uwsgi/cinder-api.ini"
+    start_order: 4
 
 # Cinder uWSGI settings
 cinder_wsgi_processes_max: 16

tasks/cinder_init_systemd.yml

@@ -0,0 +1,59 @@
+---
+# Copyright 2016, Rackspace US, Inc.
+# Copyright 2016, IBM 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.
+
+- name: Create TEMP run dir
+  file:
+    path: "/var/run/{{ item.service_name }}"
+    state: directory
+    owner: "{{ cinder_system_user_name }}"
+    group: "{{ cinder_system_group_name }}"
+    mode: "02755"
+  with_items: "{{ filtered_cinder_services }}"
+
+- name: Create TEMP lock dir
+  file:
+    path: "/var/lock/{{ item.service_name }}"
+    state: directory
+    owner: "{{ cinder_system_user_name }}"
+    group: "{{ cinder_system_group_name }}"
+    mode: "02755"
+  with_items: "{{ filtered_cinder_services }}"
+
+- name: Create tmpfiles.d entry
+  template:
+    src: "cinder-systemd-tmpfiles.j2"
+    dest: "/etc/tmpfiles.d/openstack-{{ item.service_name }}.conf"
+    mode: "0644"
+    owner: "root"
+    group: "root"
+  with_items: "{{ filtered_cinder_services }}"
+  notify:
+    - Manage LB
+    - Restart cinder services
+
+- name: Place the systemd init script
+  config_template:
+    src: "cinder-systemd-init.j2"
+    dest: "/etc/systemd/system/{{ item.service_name }}.service"
+    mode: "0644"
+    owner: "root"
+    group: "root"
+    config_overrides: "{{ item.init_config_overrides }}"
+    config_type: "ini"
+  with_items: "{{ filtered_cinder_services }}"
+  notify:
+    - Manage LB
+    - Restart cinder services

tasks/main.yml

@@ -72,30 +72,7 @@
   tags:
     - cinder-config
 
-- name: Run the systemd service role
-  include_role:
-    name: systemd_service
-    private: true
-  vars:
-    systemd_user_name: "{{ cinder_system_user_name }}"
-    systemd_group_name: "{{ cinder_system_group_name }}"
-    systemd_tempd_prefix: openstack
-    systemd_slice_name: cinder
-    system_lock_path: /var/lock/cinder
-    systemd_CPUAccounting: true
-    systemd_BlockIOAccounting: true
-    systemd_MemoryAccounting: true
-    systemd_TasksAccounting: true
-    systemd_services:
-      - service_name: "{{ service_var.service_name }}"
-        enabled: yes
-        state: started
-        execstarts: "{{ service_var.execstarts }}"
-        execreloads: "{{ service_var.execreloads | default([]) }}"
-        config_overrides: "{{ service_var.init_config_overrides }}"
-  with_items: "{{ filtered_cinder_services }}"
-  loop_control:
-    loop_var: service_var
+- include: "cinder_init_{{ ansible_service_mgr }}.yml"
   tags:
     - cinder-config
 

templates/cinder-systemd-init.j2

@@ -0,0 +1,37 @@
+# {{ ansible_managed }}
+
+[Unit]
+Description=cinder openstack service
+After=syslog.target
+After=network.target
+
+[Service]
+Type=simple
+User={{ cinder_system_user_name }}
+Group={{ cinder_system_group_name }}
+
+{% if item.program_override is defined %}
+ExecStart={{ item.program_override }} {{ item.program_config_options|default('') }} {{ item.log_string | default('--log-file=') }}{{ cinder_log_dir }}/{{ item.service_name }}.log
+{% else %}
+ExecStart={{ cinder_bin }}/{{ item.service_name }} {{ item.program_config_options|default('') }} --log-file={{ cinder_log_dir }}/{{ item.service_name }}.log
+{% endif %}
+{% if item.service_name != cinder_services['cinder-api']['service_name'] or item.wsgi_app %}
+ExecReload={{ (item.wsgi_app is defined and item.wsgi_app) | ternary(cinder_bin + '/uwsgi --reload /var/run/' + item.service_name + '/' + item.service_name +'.pid','/bin/kill -HUP $MAINPID') }}
+{% endif %}
+
+# Give a reasonable amount of time for the server to start up/shut down
+TimeoutSec=120
+Restart=on-failure
+RestartSec=2
+
+# This creates a specific slice which all services will operate from
+#  The accounting options give us the ability to see resource usage through
+#  the `systemd-cgtop` command.
+Slice=cinder.slice
+CPUAccounting=true
+BlockIOAccounting=true
+MemoryAccounting=false
+TasksAccounting=true
+
+[Install]
+WantedBy=multi-user.target

templates/cinder-systemd-tmpfiles.j2

@@ -0,0 +1,5 @@
+# {{ ansible_managed }}
+
+D /var/lock/{{ item.service_name }} 2755 {{ cinder_system_user_name }} {{ cinder_system_group_name }}
+D /var/run/{{ item.service_name }} 2755 {{ cinder_system_user_name }} {{ cinder_system_group_name }}
+D {{ cinder_lock_path }} 2755 {{ cinder_system_user_name }} {{ cinder_system_group_name }}