Use Docker healthchecks for trove services

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

Change-Id: I55badd93f92f82e020ef80b06c788600e597d068

ansible/roles/trove/defaults/main.yml

@@ -9,6 +9,7 @@ trove_services:
     image: "{{ trove_api_image_full }}"
     volumes: "{{ trove_api_default_volumes + trove_api_extra_volumes }}"
     dimensions: "{{ trove_api_dimensions }}"
+    healthcheck: "{{ trove_api_healthcheck }}"
     haproxy:
       trove_api:
         enabled: "{{ enable_trove }}"
@@ -27,6 +28,7 @@ trove_services:
     image: "{{ trove_conductor_image_full }}"
     volumes: "{{ trove_conductor_default_volumes + trove_conductor_extra_volumes }}"
     dimensions: "{{ trove_conductor_dimensions }}"
+    healthcheck: "{{ trove_conductor_healthcheck }}"
   trove-taskmanager:
     container_name: trove_taskmanager
     group: trove-taskmanager
@@ -34,6 +36,7 @@ trove_services:
     image: "{{ trove_taskmanager_image_full }}"
     volumes: "{{ trove_taskmanager_default_volumes + trove_taskmanager_extra_volumes }}"
     dimensions: "{{ trove_taskmanager_dimensions }}"
+    healthcheck: "{{ trove_taskmanager_healthcheck }}"
 
 
 ####################
@@ -66,6 +69,45 @@ trove_api_dimensions: "{{ default_container_dimensions }}"
 trove_conductor_dimensions: "{{ default_container_dimensions }}"
 trove_taskmanager_dimensions: "{{ default_container_dimensions }}"
 
+trove_api_enable_healthchecks: "{{ enable_container_healthchecks }}"
+trove_api_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+trove_api_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+trove_api_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+trove_api_healthcheck_test: ["CMD-SHELL", "healthcheck_curl http://{{ api_interface_address |  put_address_in_context('url') }}:{{ trove_api_port }}"]
+trove_api_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+trove_api_healthcheck:
+  interval: "{{ trove_api_healthcheck_interval }}"
+  retries: "{{ trove_api_healthcheck_retries }}"
+  start_period: "{{ trove_api_healthcheck_start_period }}"
+  test: "{% if trove_api_enable_healthchecks | bool %}{{ trove_api_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ trove_api_healthcheck_timeout }}"
+
+trove_conductor_enable_healthchecks: "{{ enable_container_healthchecks }}"
+trove_conductor_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+trove_conductor_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+trove_conductor_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+trove_conductor_healthcheck_test: ["CMD-SHELL", "healthcheck_port trove-conductor {{ om_rpc_port }}"]
+trove_conductor_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+trove_conductor_healthcheck:
+  interval: "{{ trove_conductor_healthcheck_interval }}"
+  retries: "{{ trove_conductor_healthcheck_retries }}"
+  start_period: "{{ trove_conductor_healthcheck_start_period }}"
+  test: "{% if trove_conductor_enable_healthchecks | bool %}{{ trove_conductor_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ trove_conductor_healthcheck_timeout }}"
+
+trove_taskmanager_enable_healthchecks: "{{ enable_container_healthchecks }}"
+trove_taskmanager_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+trove_taskmanager_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+trove_taskmanager_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+trove_taskmanager_healthcheck_test: ["CMD-SHELL", "healthcheck_port trove-taskmanager {{ om_rpc_port }}"]
+trove_taskmanager_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+trove_taskmanager_healthcheck:
+  interval: "{{ trove_taskmanager_healthcheck_interval }}"
+  retries: "{{ trove_taskmanager_healthcheck_retries }}"
+  start_period: "{{ trove_taskmanager_healthcheck_start_period }}"
+  test: "{% if trove_taskmanager_enable_healthchecks | bool %}{{ trove_taskmanager_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ trove_taskmanager_healthcheck_timeout }}"
+
 trove_api_default_volumes:
   - "{{ node_config_directory }}/trove-api/:{{ container_config_directory }}/:ro"
   - "/etc/localtime:/etc/localtime:ro"

ansible/roles/trove/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"
 
@@ -41,5 +43,6 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes|reject('equalto', '')|list }}"
     dimensions: "{{ service.dimensions }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
   when:
     - kolla_action != "config"

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

@@ -8,6 +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-trove-7920c841f784b2e1.yaml

+---
+features:
+  - |
+    Implements container healthchecks for trove services.
+    See `blueprint
+    <https://blueprints.launchpad.net/kolla-ansible/+spec/container-health-check>`__