Use Docker healthchecks for rabbitmq services

This change enables the use of Docker healthchecks for rabbitmq services.

Implements: blueprint container-health-check
Depends-On: https://review.opendev.org/c/openstack/kolla/+/784562

Change-Id: I23a2c2efab858b9ed39c6ce0ec4a82df10e7f93d
(cherry picked from commit 1ddef85)

Author: linpeiwe

ansible/roles/rabbitmq/defaults/main.yml

@@ -18,6 +18,7 @@ rabbitmq_services:
       RABBITMQ_LOG_DIR: "/var/log/kolla/{{ project_name }}"
     volumes: "{{ rabbitmq_default_volumes + rabbitmq_extra_volumes }}"
     dimensions: "{{ rabbitmq_dimensions }}"
+    healthcheck: "{{ rabbitmq_healthcheck }}"
     haproxy:
       rabbitmq_management:
         enabled: "{{ enable_rabbitmq }}"
@@ -56,6 +57,19 @@ rabbitmq_tag: "{{ openstack_tag }}"
 rabbitmq_image_full: "{{ rabbitmq_image }}:{{ rabbitmq_tag }}"
 rabbitmq_dimensions: "{{ default_container_dimensions }}"
 
+rabbitmq_enable_healthchecks: "{{ enable_container_healthchecks }}"
+rabbitmq_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+rabbitmq_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+rabbitmq_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+rabbitmq_healthcheck_test: ["CMD-SHELL", "healthcheck_rabbitmq"]
+rabbitmq_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+rabbitmq_healthcheck:
+  interval: "{{ rabbitmq_healthcheck_interval }}"
+  retries: "{{ rabbitmq_healthcheck_retries }}"
+  start_period: "{{ rabbitmq_healthcheck_start_period }}"
+  test: "{% if rabbitmq_enable_healthchecks | bool %}{{ rabbitmq_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ rabbitmq_healthcheck_timeout }}"
+
 rabbitmq_default_volumes:
   - "{{ node_config_directory }}/{{ project_name }}/:{{ container_config_directory }}/:ro"
   - "/etc/localtime:/etc/localtime:ro"

ansible/roles/rabbitmq/tasks/check-containers.yml

@@ -9,6 +9,7 @@
     volumes: "{{ item.value.volumes }}"
     environment: "{{ item.value.environment }}"
     dimensions: "{{ item.value.dimensions }}"
+    healthcheck: "{{ item.value.healthcheck | default(omit) }}"
   when:
     - inventory_hostname in groups[item.value.group]
     - item.value.enabled | bool

ansible/roles/rabbitmq/tasks/restart_services.yml

@@ -12,6 +12,7 @@
     volumes: "{{ service.volumes }}"
     environment: "{{ service.environment }}"
     dimensions: "{{ service.dimensions }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
 
 - name: Waiting for rabbitmq to start
   vars:

releasenotes/notes/implement-docker-healthchecks-for-rabbitmq-a596f6b063026491.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Implements container healthchecks for rabbitmq services.
+    See `blueprint
+    <https://blueprints.launchpad.net/kolla-ansible/+spec/container-health-check>`__