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.

Change-Id: I1e7d6a9fa87f18ce2515e28a5f3df4f6ad01b485
Signed-off-by: Ivan Anfimov <lazekteam@gmail.com>

defaults/main.yml

@@ -236,6 +236,7 @@ designate_producer_init_overrides: {}
 designate_mdns_init_overrides: {}
 designate_sink_init_overrides: {}
 designate_api_init_overrides: {}
+designate_api_uwsgi_ini_overrides: {}
 
 ## Service Name-Group Mapping
 designate_services:
@@ -274,8 +275,22 @@ designate_services:
     service_name: designate-api
     init_config_overrides: "{{ designate_api_init_overrides }}"
     execstarts: "{{ designate_bin }}/designate-api"
+    wsgi_app: true
+    wsgi: "designate.wsgi.api:application"
+    uwsgi_overrides: "{{ designate_api_uwsgi_ini_overrides }}"
+    uwsgi_bind_address: "{{ designate_bind_address }}"
+    uwsgi_port: "{{ designate_service_port }}"
+    uwsgi_tls: "{{ designate_backend_ssl | ternary(designate_uwsgi_tls, {}) }}"
     start_order: 1
 
+# Designate uWSGI settings
+designate_wsgi_processes_max: 16
+designate_wsgi_processes: "{{ [[ansible_processor_vcpus | default(1), 1] | max * 2, designate_wsgi_processes_max] | min }}"
+designate_wsgi_threads: 1
+designate_uwsgi_tls:
+  crt: "{{ designate_ssl_cert }}"
+  key: "{{ designate_ssl_key }}"
+
 ## Tunable overrides
 designate_policy_overrides: {}
 designate_designate_conf_overrides: {}

tasks/designate_post_install.yml

@@ -55,7 +55,9 @@
       group: "root"
       config_overrides: "{{ designate_rootwrap_conf_overrides }}"
       config_type: "ini"
-  notify: Restart designate services
+  notify:
+    - Restart designate services
+    - Restart uwsgi services
 
 - name: Implement policy.yaml if there are overrides configured
   openstack.config_template.config_template:

tasks/main.yml

@@ -185,6 +185,16 @@
     - designate-config
     - systemd-service
 
+- name: Import uwsgi role
+  ansible.builtin.import_role:
+    name: uwsgi
+  vars:
+    uwsgi_services: "{{ uwsgi_designate_services }}"
+    uwsgi_install_method: "{{ designate_install_method }}"
+  tags:
+    - designate-config
+    - uwsgi
+
 - name: Flush handlers
   ansible.builtin.meta: flush_handlers
 - name: Importing designate_db_sync tasks

tests/ansible-role-requirements.yml

@@ -19,10 +19,6 @@
   src: https://opendev.org/openstack/openstack-ansible-lxc_container_create
   scm: git
   version: master
-- name: galera_client
-  src: https://opendev.org/openstack/openstack-ansible-galera_client
-  scm: git
-  version: master
 - name: galera_server
   src: https://opendev.org/openstack/openstack-ansible-galera_server
   scm: git
@@ -51,3 +47,7 @@
   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/main.yml

@@ -47,7 +47,8 @@ filtered_designate_services: |-
   {% for key, value in designate_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,
@@ -63,6 +64,26 @@ filtered_designate_services: |-
   {% endfor %}
   {{ services | sort(attribute='start_order') }}
 
+uwsgi_designate_services: |-
+  {% set services = {} %}
+  {% for key, value in designate_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_venv': designate_bin | dirname,
+             'uwsgi_uid': designate_system_user_name,
+             'uwsgi_guid': designate_system_group_name,
+             'uwsgi_processes': designate_wsgi_processes,
+             'uwsgi_threads': designate_wsgi_threads
+           }
+         ) %}
+  {%     set _ = services.update({key: value}) %}
+  {%   endif %}
+  {% endfor %}
+  {{ services }}
+
 _designate_coordination_url: >-
   {{ designate_coordination_driver }}://{{
       groups[designate_coordination_group]