Optimize reconfigure action for congress

Co-Authored-By: Mauricio Lima <mauriciolimab@gmail.com>
Change-Id: I568ebe2e5160982aaf5a82b6d73a753cbadc0c49
Partially-implements: blueprint better-reconfigure

ansible/roles/congress/defaults/main.yml

@@ -1,6 +1,36 @@
 ---
 project_name: "congress"
 
+congress_services:
+  congress-api:
+    container_name: congress_api
+    group: congress-api
+    enabled: true
+    image: "{{ congress_api_image_full }}"
+    volumes:
+      - "{{ node_config_directory }}/congress-api/:{{ container_config_directory }}/:ro"
+      - "/etc/localtime:/etc/localtime:ro"
+      - "kolla_logs:/var/log/kolla/"
+  congress-policy-engine:
+    container_name: congress_policy_engine
+    group: congress-policy-engine
+    enabled: true
+    image: "{{ congress_policy_engine_image_full }}"
+    volumes:
+      - "{{ node_config_directory }}/congress-policy-engine/:{{ container_config_directory }}/:ro"
+      - "/etc/localtime:/etc/localtime:ro"
+      - "kolla_logs:/var/log/kolla/"
+  congress-datasource:
+    container_name: congress_datasource
+    group: congress-datasource
+    enabled: true
+    image: "{{ congress_datasource_image_full }}"
+    volumes:
+      - "{{ node_config_directory }}/congress-datasource/:{{ container_config_directory }}/:ro"
+      - "/etc/localtime:/etc/localtime:ro"
+      - "kolla_logs:/var/log/kolla/"
+
+
 ####################
 # Database
 ####################

ansible/roles/congress/handlers/main.yml

@@ -0,0 +1,69 @@
+---
+- name: Restart congress-api container
+  vars:
+    service_name: "congress-api"
+    service: "{{ congress_services[service_name] }}"
+    config_json: "{{ congress_config_jsons.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    congress_conf: "{{ congress_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    policy_json: "{{ congress_policy_jsons.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    congress_api_container: "{{ check_congress_containers.results|selectattr('item.key', 'equalto', service_name)|first }}"
+  kolla_docker:
+    action: "recreate_or_restart_container"
+    common_options: "{{ docker_common_options }}"
+    name: "{{ service.container_name }}"
+    image: "{{ service.image }}"
+    volumes: "{{ service.volumes }}"
+  when:
+    - action != "config"
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+    - config_json.changed | bool
+      or congress_conf.changed | bool
+      or policy_json.changed | bool
+      or congress_api_container.changed | bool
+
+- name: Restart congress-policy-engine container
+  vars:
+    service_name: "congress-policy-engine"
+    service: "{{ congress_services[service_name] }}"
+    config_json: "{{ congress_config_jsons.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    congress_conf: "{{ congress_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    policy_json: "{{ congress_policy_jsons.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    congress_policy_engin_container: "{{ check_congress_containers.results|selectattr('item.key', 'equalto', service_name)|first }}"
+  kolla_docker:
+    action: "recreate_or_restart_container"
+    common_options: "{{ docker_common_options }}"
+    name: "{{ service.container_name }}"
+    image: "{{ service.image }}"
+    volumes: "{{ service.volumes }}"
+  when:
+    - action != "config"
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+    - config_json.changed | bool
+      or congress_conf.changed | bool
+      or policy_json.changed | bool
+      or congress_policy_engin_container.changed | bool
+
+- name: Restart congress-datasource container
+  vars:
+    service_name: "congress-datasource"
+    service: "{{ congress_services[service_name] }}"
+    config_json: "{{ congress_config_jsons.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    congress_conf: "{{ congress_confs.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    policy_json: "{{ congress_policy_jsons.results|selectattr('item.key', 'equalto', service_name)|first }}"
+    congress_datasource_container: "{{ check_congress_containers.results|selectattr('item.key', 'equalto', service_name)|first }}"
+  kolla_docker:
+    action: "recreate_or_restart_container"
+    common_options: "{{ docker_common_options }}"
+    name: "{{ service.container_name }}"
+    image: "{{ service.image }}"
+    volumes: "{{ service.volumes }}"
+  when:
+    - action != "config"
+    - inventory_hostname in groups[service.group]
+    - service.enabled | bool
+    - config_json.changed | bool
+      or congress_conf.changed | bool
+      or policy_json.changed | bool
+      or congress_datasource_container.changed | bool

ansible/roles/congress/tasks/bootstrap_service.yml

@@ -1,5 +1,7 @@
 ---
 - name: Running congress bootstrap container
+  vars:
+    congress_api: "{{ congress_services['congress-api'] }}"
   kolla_docker:
     action: "start_container"
     common_options: "{{ docker_common_options }}"
@@ -7,14 +9,11 @@
     environment:
       KOLLA_BOOTSTRAP:
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
-    image: "{{ congress_api_image_full }}"
+    image: "{{ congress_api.image }}"
     labels:
       BOOTSTRAP:
     name: "bootstrap_congress"
     restart_policy: "never"
-    volumes:
-      - "{{ node_config_directory }}/congress-api/:{{ container_config_directory }}/:ro"
-      - "/etc/localtime:/etc/localtime:ro"
-      - "kolla_logs:/var/log/kolla/"
+    volumes: "{{ congress_api.volumes }}"
   run_once: True
-  delegate_to: "{{ groups['congress-api'][0] }}"
+  delegate_to: "{{ groups[congress_api.group][0] }}"

ansible/roles/congress/tasks/config.yml

@@ -1,40 +1,44 @@
 ---
 - name: Ensuring config directories exist
   file:
-    path: "{{ node_config_directory }}/{{ item }}"
+    path: "{{ node_config_directory }}/{{ item.key }}"
     state: "directory"
     recurse: yes
-  with_items:
-    - "congress-api"
-    - "congress-policy-engine"
-    - "congress-datasource"
+  when: inventory_hostname in groups[item.value.group]
+  with_dict: "{{ congress_services }}"
 
 - name: Copying over config.json files for services
   template:
-    src: "{{ item }}.json.j2"
-    dest: "{{ node_config_directory }}/{{ item }}/config.json"
-  with_items:
-    - "congress-api"
-    - "congress-policy-engine"
-    - "congress-datasource"
+    src: "{{ item.key }}.json.j2"
+    dest: "{{ node_config_directory }}/{{ item.key }}/config.json"
+  register: congress_config_jsons
+  when:
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+  with_dict: "{{ congress_services }}"
+  notify:
+    - "Restart {{ item.key }} container"
 
 - name: Copying over congress.conf
   merge_configs:
     vars:
-      service_name: "{{ item }}"
+      service_name: "{{ item.key }}"
     sources:
       - "{{ role_path }}/templates/congress.conf.j2"
       - "{{ node_custom_config }}/global.conf"
       - "{{ node_custom_config }}/database.conf"
       - "{{ node_custom_config }}/messaging.conf"
       - "{{ node_custom_config }}/congress.conf"
-      - "{{ node_custom_config }}/congress/{{ item }}.conf"
+      - "{{ node_custom_config }}/congress/{{ item.key }}.conf"
       - "{{ node_custom_config }}/congress/{{ inventory_hostname }}/congress.conf"
-    dest: "{{ node_config_directory }}/{{ item }}/congress.conf"
-  with_items:
-    - "congress-api"
-    - "congress-policy-engine"
-    - "congress-datasource"
+    dest: "{{ node_config_directory }}/{{ item.key }}/congress.conf"
+  register: congress_confs
+  when:
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+  with_dict: "{{ congress_services }}"
+  notify:
+    - "Restart {{ item.key }} container"
 
 - name: Check if policies shall be overwritten
   local_action: stat path="{{ node_custom_config }}/congress/policy.json"
@@ -43,10 +47,28 @@
 - name: Copying over existing policy.json
   template:
     src: "{{ node_custom_config }}/congress/policy.json"
-    dest: "{{ node_config_directory }}/{{ item }}/policy.json"
-  with_items:
-    - "congress-api"
-    - "congress-policy-engine"
-    - "congress-datasource"
+    dest: "{{ node_config_directory }}/{{ item.key }}/policy.json"
+  register: congress_policy_jsons
   when:
-    congress_policy.stat.exists
+    - congress_policy.stat.exists
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+  with_dict: "{{ congress_services }}"
+  notify:
+    - "Restart {{ item.key }} container"
+
+- name: Check congress containers
+  kolla_docker:
+    action: "compare_container"
+    common_options: "{{ docker_common_options }}"
+    name: "{{ item.value.container_name }}"
+    image: "{{ item.value.image }}"
+    volumes: "{{ item.value.volumes }}"
+  register: check_congress_containers
+  when:
+    - action != "config"
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+  with_dict: "{{ congress_services }}"
+  notify:
+    - "Restart {{ item.key }} container"

ansible/roles/congress/tasks/deploy.yml

@@ -10,7 +10,5 @@
 - include: bootstrap.yml
   when: inventory_hostname in groups['congress-api']
 
-- include: start.yml
-  when: inventory_hostname in groups['congress-api'] or
-        inventory_hostname in groups['congress-policy-engine'] or
-        inventory_hostname in groups['congress-datasource']
+- name: Flush handlers
+  meta: flush_handlers

ansible/roles/congress/tasks/pull.yml

@@ -1,21 +1,10 @@
 ---
-- name: Pulling congress-api image
+- name: Pulling congress images
   kolla_docker:
     action: "pull_image"
     common_options: "{{ docker_common_options }}"
-    image: "{{ congress_api_image_full }}"
-  when: inventory_hostname in groups['congress-api']
-
-- name: Pulling congress-policy-engine image
-  kolla_docker:
-    action: "pull_image"
-    common_options: "{{ docker_common_options }}"
-    image: "{{ congress_policy_engine_image_full }}"
-  when: inventory_hostname in groups['congress-policy-engine']
-
-- name: Pulling congress-datasource image
-  kolla_docker:
-    action: "pull_image"
-    common_options: "{{ docker_common_options }}"
-    image: "{{ congress_datasource_image_full }}"
-  when: inventory_hostname in groups['congress-datasource']
+    image: "{{ item.value.image }}"
+  when:
+    - inventory_hostname in groups[item.value.group]
+    - item.value.enabled | bool
+  with_dict: "{{ congress_services }}"

ansible/roles/congress/tasks/reconfigure.yml

@@ -1,74 +1,2 @@
 ---
-- name: Ensuring the containers up
-  kolla_docker:
-    name: "{{ item.name }}"
-    action: "get_container_state"
-  register: container_state
-  failed_when: container_state.Running == false
-  when: inventory_hostname in groups[item.group]
-  with_items:
-    - { name: congress_api, group: congress-api }
-    - { name: congress_datasource, group: congress-datasource }
-    - { name: congress_policy_engine, group: congress-policy-engine }
-
-- include: config.yml
-
-- name: Check the configs
-  command: docker exec {{ item.name }} /usr/local/bin/kolla_set_configs --check
-  changed_when: false
-  failed_when: false
-  register: check_results
-  when: inventory_hostname in groups[item.group]
-  with_items:
-    - { name: congress_api, group: congress-api }
-    - { name: congress_datasource, group: congress-datasource }
-    - { name: congress_policy_engine, group: congress-policy-engine }
-
-# NOTE(jeffrey4l): when config_strategy == 'COPY_ALWAYS'
-# and container env['KOLLA_CONFIG_STRATEGY'] == 'COPY_ONCE',
-# just remove the container and start again
-- name: Containers config strategy
-  kolla_docker:
-    name: "{{ item.name }}"
-    action: "get_container_env"
-  register: container_envs
-  when: inventory_hostname in groups[item.group]
-  with_items:
-    - { name: congress_api, group: congress-api }
-    - { name: congress_datasource, group: congress-datasource }
-    - { name: congress_policy_engine, group: congress-policy-engine }
-
-- name: Remove the containers
-  kolla_docker:
-    name: "{{ item[0]['name'] }}"
-    action: "remove_container"
-  register: remove_containers
-  when:
-    - inventory_hostname in groups[item[0]['group']]
-    - config_strategy == "COPY_ONCE" or item[1]['KOLLA_CONFIG_STRATEGY'] == 'COPY_ONCE'
-    - item[2]['rc'] == 1
-  with_together:
-    - [{ name: congress_api, group: congress-api },
-       { name: congress_datasource, group: congress-datasource },
-       { name: congress_policy_engine, group: congress-policy-engine }]
-    - "{{ container_envs.results }}"
-    - "{{ check_results.results }}"
-
-- include: start.yml
-  when: remove_containers.changed
-
-- name: Restart containers
-  kolla_docker:
-    name: "{{ item[0]['name'] }}"
-    action: "restart_container"
-  when:
-    - inventory_hostname in groups[item[0]['group']]
-    - config_strategy == 'COPY_ALWAYS'
-    - item[1]['KOLLA_CONFIG_STRATEGY'] != 'COPY_ONCE'
-    - item[2]['rc'] == 1
-  with_together:
-    - [{ name: congress_api, group: congress-api },
-       { name: congress_datasource, group: congress-datasource },
-       { name: congress_policy_engine, group: congress-policy-engine }]
-    - "{{ container_envs.results }}"
-    - "{{ check_results.results }}"
+- include: deploy.yml

ansible/roles/congress/tasks/start.yml

@@ -1,36 +0,0 @@
----
-- name: Starting congress-policy-engine container
-  kolla_docker:
-    action: "start_container"
-    name: "congress_policy_engine"
-    common_options: "{{ docker_common_options }}"
-    image: "{{ congress_policy_engine_image_full }}"
-    volumes:
-      - "{{ node_config_directory }}/congress-policy-engine/:{{ container_config_directory }}/:ro"
-      - "/etc/localtime:/etc/localtime:ro"
-      - "kolla_logs:/var/log/kolla/"
-  when: inventory_hostname in groups['congress-policy-engine']
-
-- name: Starting congress-datasource container
-  kolla_docker:
-    action: "start_container"
-    name: "congress_datasource"
-    common_options: "{{ docker_common_options }}"
-    image: "{{ congress_datasource_image_full }}"
-    volumes:
-      - "{{ node_config_directory }}/congress-datasource/:{{ container_config_directory }}/:ro"
-      - "/etc/localtime:/etc/localtime:ro"
-      - "kolla_logs:/var/log/kolla/"
-  when: inventory_hostname in groups['congress-datasource']
-
-- name: Starting congress-api container
-  kolla_docker:
-    action: "start_container"
-    name: "congress_api"
-    common_options: "{{ docker_common_options }}"
-    image: "{{ congress_api_image_full }}"
-    volumes:
-      - "{{ node_config_directory }}/congress-api/:{{ container_config_directory }}/:ro"
-      - "/etc/localtime:/etc/localtime:ro"
-      - "kolla_logs:/var/log/kolla/"
-  when: inventory_hostname in groups['congress-api']

ansible/roles/congress/tasks/upgrade.yml

@@ -3,4 +3,5 @@
 
 - include: bootstrap_service.yml
 
-- include: start.yml
+- name: Flush handlers
+  meta: flush_handlers