Start using uWSGI role

Move service to use uWSGI role instead of iternal task for uwsgi
deployment. This aims to ease the maintenance of uWSGI and speedup
metal deployments as the same uwsgi environment will be used
across all services.

Depends-On: https://review.opendev.org/678025/
Change-Id: Ieac6d03a436f6b706d7f12e292ffc98171a43246

defaults/main.yml

@@ -296,7 +296,6 @@ cinder_pip_packages:
   - python-openstackclient
   - python-memcached
   - systemd-python
-  - uwsgi
 
 # Specific pip packages provided by the user
 cinder_user_pip_packages: []
@@ -338,11 +337,9 @@ cinder_services:
     service_name: cinder-api
     init_config_overrides: "{{ cinder_api_init_overrides }}"
     start_order: 4
-    execstarts: "{{ cinder_uwsgi_bin }}/uwsgi --autoload --ini /etc/uwsgi/cinder-api.ini"
-    execreloads: "{{ cinder_uwsgi_bin }}/uwsgi --reload /var/run/cinder-api/cinder-api.pid"
-    wsgi_overrides: "{{ cinder_api_uwsgi_ini_overrides }}"
     wsgi_app: True
     wsgi_name: cinder-wsgi
+    uwsgi_overrides: "{{ cinder_api_uwsgi_ini_overrides }}"
     uwsgi_port: "{{ cinder_service_port }}"
     uwsgi_bind_address: "{{ cinder_uwsgi_bind_address }}"
 
@@ -350,7 +347,6 @@ cinder_services:
 cinder_wsgi_processes_max: 16
 cinder_wsgi_processes: "{{ [[ansible_processor_vcpus|default(1), 1] | max * 2, cinder_wsgi_processes_max] | min }}"
 cinder_wsgi_threads: 1
-cinder_wsgi_buffer_size: 65535
 
 # This variable is used by the repo_build process to determine
 # which host group to check for members of before building the

tasks/cinder_uwsgi.yml

@@ -1,33 +0,0 @@
----
-# Copyright 2017, 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: Ensure uWSGI directory exists
-  file:
-    path: "/etc/uwsgi/"
-    state: directory
-    mode: "0711"
-
-- name: Apply uWSGI configuration
-  config_template:
-    src: "cinder-uwsgi.ini.j2"
-    dest: "/etc/uwsgi/{{ item.service_name }}.ini"
-    mode: "0744"
-    config_overrides: "{{ item.wsgi_overrides }}"
-    config_type: ini
-  with_items: "{{ filtered_cinder_services }}"
-  when: item.wsgi_app | default(False)
-  notify:
-    - Manage LB
-    - Restart cinder services

tasks/main.yml

@@ -135,9 +135,15 @@
   tags:
     - cinder-config
 
-- import_tasks: cinder_uwsgi.yml
+- name: Import uwsgi role
+  import_role:
+    name: uwsgi
+  vars:
+    uwsgi_services: "{{ uwsgi_cinder_services }}"
+    uwsgi_install_method: "{{ cinder_install_method }}"
   tags:
     - cinder-config
+    - uwsgi
 
 - import_tasks: service_setup.yml
   vars:

templates/cinder-uwsgi.ini.j2

@@ -1,28 +0,0 @@
-[uwsgi]
-uid = {{ cinder_system_user_name }}
-gid = {{ cinder_system_group_name }}
-
-{% if cinder_install_method == 'source' %}
-virtualenv = /openstack/venvs/cinder-{{ cinder_venv_tag }}
-{% endif %}
-{% if cinder_install_method == 'distro' and (ansible_os_family | lower) == 'debian' %}
-plugin = python3
-{% endif %}
-wsgi-file = {{ cinder_bin }}/{{ item.wsgi_name }}
-http = {{ item.uwsgi_bind_address }}:{{ item.uwsgi_port }}
-
-master = true
-enable-threads = true
-processes = {{ cinder_wsgi_processes }}
-threads = {{ cinder_wsgi_threads }}
-exit-on-reload = false
-die-on-term = true
-lazy-apps = true
-add-header = Connection: close
-buffer-size = {{ cinder_wsgi_buffer_size }}
-thunder-lock = true
-logfile-chmod = 644
-pidfile = /var/run/{{ item.service_name }}/{{ item.service_name }}.pid
-
-# Avoid filling up the logs with health check requests from haproxy.
-route-user-agent = ^osa-haproxy-healthcheck$ donotlog:

tests/ansible-role-requirements.yml

@@ -59,3 +59,7 @@
   src: https://opendev.org/openstack/ansible-role-python_venv_build
   scm: git
   version: master
+- name: uwsgi
+  src: https://opendev.org/openstack/ansible-role-uwsgi
+  scm: git
+  version: master

vars/debian.yml

@@ -45,9 +45,7 @@ cinder_devel_distro_packages:
   - libxslt1-dev
   - libsystemd-dev
 
-cinder_api_distro_packages:
-  - uwsgi
-  - uwsgi-plugin-python3
+cinder_api_distro_packages: []
 
 cinder_volume_distro_packages: []
 
@@ -72,5 +70,3 @@ cinder_backup_distro_packages:
 cinder_oslomsg_amqp1_distro_packages:
   - libsasl2-modules
   - sasl2-bin
-
-cinder_uwsgi_bin: '/usr/bin'

vars/main.yml

@@ -28,13 +28,35 @@ filtered_cinder_services: |-
   {% for key, value in cinder_services.items() %}
   {%   if (value['group'] in group_names) and
           (('condition' not in value) or
-           ('condition' in value and value['condition'])) %}
+           ('condition' in value and value['condition'])) and
+           not ('wsgi_app' in value and value['wsgi_app']) %}
   {%     set _ = value.update({'service_key': key}) %}
   {%     set _ = services.append(value) %}
   {%   endif %}
   {% endfor %}
   {{ services | sort(attribute='start_order') }}
 
+uwsgi_cinder_services: |-
+  {% set services = {} %}
+  {% for key, value in cinder_services.items() %}
+  {%   if (value['group'] in group_names) and
+         (('condition' not in value) or ('condition' in value and value['condition']))
+         and ('wsgi_app' in value and value['wsgi_app']) %}
+  {%     set _ = value.update(
+            {
+             'wsgi_path':  cinder_bin ~ '/' ~ value.wsgi_name,
+             'wsgi_venv': ((cinder_install_method == 'source') | ternary(cinder_bin | dirname, None)),
+             'uwsgi_uid': cinder_system_user_name,
+             'uwsgi_guid': cinder_system_group_name,
+             'uwsgi_processes': cinder_wsgi_processes,
+             'uwsgi_threads': cinder_wsgi_threads
+           }
+         ) %}
+  {%     set _ = services.update({key: value}) %}
+  {%   endif %}
+  {% endfor %}
+  {{ services }}
+
 cinder_core_files:
   - tmp_f: "/tmp/api-paste.ini"
     target_f: "/etc/cinder/api-paste.ini"

vars/redhat.yml

@@ -37,9 +37,7 @@ cinder_devel_distro_packages:
   - systemd-devel
   - zlib-devel
 
-cinder_api_distro_packages:
-  - uwsgi
-  - uwsgi-plugin-python
+cinder_api_distro_packages: []
 
 cinder_volume_distro_packages: []
 
@@ -64,5 +62,3 @@ cinder_oslomsg_amqp1_distro_packages:
   - cyrus-sasl-lib
   - cyrus-sasl-plain
   - cyrus-sasl-md5
-
-cinder_uwsgi_bin: '/usr/sbin'

vars/source_install.yml

@@ -32,4 +32,3 @@ cinder_package_list: |-
   {{ packages }}
 
 _cinder_bin: "/openstack/venvs/cinder-{{ cinder_venv_tag }}/bin"
-cinder_uwsgi_bin: "{{ _cinder_bin }}"

vars/suse.yml

@@ -30,8 +30,6 @@ cinder_service_distro_packages:
 
 cinder_api_distro_packages:
   - openstack-cinder-api
-  - uwsgi
-  - uwsgi-python
 
 cinder_devel_distro_packages:
   - git-core
@@ -66,5 +64,3 @@ cinder_oslomsg_amqp1_distro_packages:
   - cyrus-sasl
   - cyrus-sasl-plain
   - cyrus-sasl-digestmd5
-
-cinder_uwsgi_bin: '/usr/sbin'