Use Docker healthchecks for mistral services

This change enables the use of Docker healthchecks for mistral services.
Implements: blueprint container-health-check

Change-Id: I5c60d22936d0e2e92fc9e6bcbf0a869d3f0b1687

ansible/roles/mistral/defaults/main.yml

@@ -9,6 +9,7 @@ mistral_services:
     image: "{{ mistral_api_image_full }}"
     volumes: "{{ mistral_api_default_volumes + mistral_api_extra_volumes }}"
     dimensions: "{{ mistral_api_dimensions }}"
+    healthcheck: "{{ mistral_api_healthcheck }}"
     haproxy:
       mistral_api:
         enabled: "{{ enable_mistral }}"
@@ -27,6 +28,7 @@ mistral_services:
     image: "{{ mistral_engine_image_full }}"
     volumes: "{{ mistral_engine_default_volumes + mistral_engine_extra_volumes }}"
     dimensions: "{{ mistral_engine_dimensions }}"
+    healthcheck: "{{ mistral_engine_healthcheck }}"
   mistral-event-engine:
     container_name: mistral_event_engine
     group: mistral-event-engine
@@ -34,6 +36,7 @@ mistral_services:
     image: "{{ mistral_event_engine_image_full }}"
     volumes: "{{ mistral_event_engine_default_volumes + mistral_event_engine_extra_volumes }}"
     dimensions: "{{ mistral_event_engine_dimensions }}"
+    healthcheck: "{{ mistral_event_engine_healthcheck }}"
   mistral-executor:
     container_name: mistral_executor
     group: mistral-executor
@@ -41,6 +44,7 @@ mistral_services:
     image: "{{ mistral_executor_image_full }}"
     volumes: "{{ mistral_executor_default_volumes + mistral_executor_extra_volumes }}"
     dimensions: "{{ mistral_executor_dimensions }}"
+    healthcheck: "{{ mistral_executor_healthcheck }}"
 
 
 ####################
@@ -78,6 +82,58 @@ mistral_event_engine_dimensions: "{{ default_container_dimensions }}"
 mistral_executor_dimensions: "{{ default_container_dimensions }}"
 mistral_api_dimensions: "{{ default_container_dimensions }}"
 
+mistral_api_enable_healthchecks: "{{ enable_container_healthchecks }}"
+mistral_api_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+mistral_api_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+mistral_api_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+mistral_api_healthcheck_test: ["CMD-SHELL", "healthcheck_curl http://{{ api_interface_address |  put_address_in_context('url') }}:{{ mistral_api_port }}"]
+mistral_api_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+mistral_api_healthcheck:
+  interval: "{{ mistral_api_healthcheck_interval }}"
+  retries: "{{ mistral_api_healthcheck_retries }}"
+  start_period: "{{ mistral_api_healthcheck_start_period }}"
+  test: "{% if mistral_api_enable_healthchecks | bool %}{{ mistral_api_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ mistral_api_healthcheck_timeout }}"
+
+mistral_engine_enable_healthchecks: "{{ enable_container_healthchecks }}"
+mistral_engine_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+mistral_engine_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+mistral_engine_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+mistral_engine_healthcheck_test: ["CMD-SHELL", "healthcheck_port mistral-server {{ om_rpc_port }}"]
+mistral_engine_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+mistral_engine_healthcheck:
+  interval: "{{ mistral_engine_healthcheck_interval }}"
+  retries: "{{ mistral_engine_healthcheck_retries }}"
+  start_period: "{{ mistral_engine_healthcheck_start_period }}"
+  test: "{% if mistral_engine_enable_healthchecks | bool %}{{ mistral_engine_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ mistral_engine_healthcheck_timeout }}"
+
+mistral_event_engine_enable_healthchecks: "{{ enable_container_healthchecks }}"
+mistral_event_engine_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+mistral_event_engine_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+mistral_event_engine_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+mistral_event_engine_healthcheck_test: ["CMD-SHELL", "healthcheck_port mistral-server {{ om_rpc_port }}"]
+mistral_event_engine_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+mistral_event_engine_healthcheck:
+  interval: "{{ mistral_event_engine_healthcheck_interval }}"
+  retries: "{{ mistral_event_engine_healthcheck_retries }}"
+  start_period: "{{ mistral_event_engine_healthcheck_start_period }}"
+  test: "{% if mistral_event_engine_enable_healthchecks | bool %}{{ mistral_event_engine_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ mistral_event_engine_healthcheck_timeout }}"
+
+mistral_executor_enable_healthchecks: "{{ enable_container_healthchecks }}"
+mistral_executor_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+mistral_executor_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+mistral_executor_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+mistral_executor_healthcheck_test: ["CMD-SHELL", "healthcheck_port mistral-server {{ om_rpc_port }}"]
+mistral_executor_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+mistral_executor_healthcheck:
+  interval: "{{ mistral_executor_healthcheck_interval }}"
+  retries: "{{ mistral_executor_healthcheck_retries }}"
+  start_period: "{{ mistral_executor_healthcheck_start_period }}"
+  test: "{% if mistral_executor_enable_healthchecks | bool %}{{ mistral_executor_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ mistral_executor_healthcheck_timeout }}"
+
 mistral_engine_default_volumes:
   - "{{ node_config_directory }}/mistral-engine/:{{ container_config_directory }}/:ro"
   - "/etc/localtime:/etc/localtime:ro"

ansible/roles/mistral/handlers/main.yml

@@ -11,6 +11,7 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes|reject('equalto', '')|list }}"
     dimensions: "{{ service.dimensions }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
   when:
     - kolla_action != "config"
 
@@ -26,6 +27,7 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes|reject('equalto', '')|list }}"
     dimensions: "{{ service.dimensions }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
   when:
     - kolla_action != "config"
 
@@ -40,6 +42,7 @@
     name: "{{ service.container_name }}"
     image: "{{ service.image }}"
     volumes: "{{ service.volumes|reject('equalto', '')|list }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
     dimensions: "{{ service.dimensions }}"
   when:
     - kolla_action != "config"
@@ -56,5 +59,6 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes|reject('equalto', '')|list }}"
     dimensions: "{{ service.dimensions }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
   when:
     - kolla_action != "config"

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

@@ -8,7 +8,7 @@
     image: "{{ item.value.image }}"
     volumes: "{{ item.value.volumes|reject('equalto', '')|list }}"
     dimensions: "{{ item.value.dimensions }}"
-
+    healthcheck: "{{ item.value.healthcheck | default(omit) }}"
   when:
     - inventory_hostname in groups[item.value.group]
     - item.value.enabled | bool

releasenotes/notes/implement-docker-healthchecks-for-mistral-4e9b17cc3b0c43d7.yaml

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