Use Docker healthchecks for cloudkitty services

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

Change-Id: I19892035382ffff5200e88da53408a19e72c9d68

ansible/roles/cloudkitty/defaults/main.yml

@@ -9,6 +9,7 @@ cloudkitty_services:
     enabled: True
     volumes: "{{ cloudkitty_api_default_volumes + cloudkitty_api_extra_volumes }}"
     dimensions: "{{ cloudkitty_api_dimensions }}"
+    healthcheck: "{{ cloudkitty_api_healthcheck }}"
     haproxy:
       cloudkitty_api:
         enabled: "{{ enable_cloudkitty }}"
@@ -27,6 +28,7 @@ cloudkitty_services:
     enabled: True
     volumes: "{{ cloudkitty_processor_default_volumes + cloudkitty_processor_extra_volumes }}"
     dimensions: "{{ cloudkitty_processor_dimensions }}"
+    healthcheck: "{{ cloudkitty_processor_healthcheck }}"
 
 
 ####################
@@ -67,6 +69,32 @@ cloudkitty_processor_default_volumes:
   - "kolla_logs:/var/log/kolla/"
   - "{{ kolla_dev_repos_directory ~ '/cloudkitty/cloudkitty:/var/lib/kolla/venv/lib/python' ~ distro_python_version ~ '/site-packages/cloudkitty' if cloudkitty_dev_mode | bool else '' }}"
 
+cloudkitty_api_enable_healthchecks: "{{ enable_container_healthchecks }}"
+cloudkitty_api_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+cloudkitty_api_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+cloudkitty_api_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+cloudkitty_api_healthcheck_test: ["CMD-SHELL", "healthcheck_curl http://{{ api_interface_address |  put_address_in_context('url') }}:{{ cloudkitty_api_port}}"]
+cloudkitty_api_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+cloudkitty_api_healthcheck:
+  interval: "{{ cloudkitty_api_healthcheck_interval }}"
+  retries: "{{ cloudkitty_api_healthcheck_retries }}"
+  start_period: "{{ cloudkitty_api_healthcheck_start_period }}"
+  test: "{% if cloudkitty_api_enable_healthchecks | bool %}{{ cloudkitty_api_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ cloudkitty_api_healthcheck_timeout }}"
+
+cloudkitty_processor_enable_healthchecks: "{{ enable_container_healthchecks }}"
+cloudkitty_processor_healthcheck_interval: "{{ default_container_healthcheck_interval }}"
+cloudkitty_processor_healthcheck_retries: "{{ default_container_healthcheck_retries }}"
+cloudkitty_processor_healthcheck_start_period: "{{ default_container_healthcheck_start_period }}"
+cloudkitty_processor_healthcheck_test: ["CMD-SHELL", "healthcheck_port cloudkitty-processor {{ om_rpc_port }}"]
+cloudkitty_processor_healthcheck_timeout: "{{ default_container_healthcheck_timeout }}"
+cloudkitty_processor_healthcheck:
+  interval: "{{ cloudkitty_processor_healthcheck_interval }}"
+  retries: "{{ cloudkitty_processor_healthcheck_retries }}"
+  start_period: "{{ cloudkitty_processor_healthcheck_start_period }}"
+  test: "{% if cloudkitty_processor_enable_healthchecks | bool %}{{ cloudkitty_processor_healthcheck_test }}{% else %}NONE{% endif %}"
+  timeout: "{{ cloudkitty_processor_healthcheck_timeout }}"
+
 cloudkitty_extra_volumes: "{{ default_extra_volumes }}"
 cloudkitty_processor_extra_volumes: "{{ cloudkitty_extra_volumes }}"
 cloudkitty_api_extra_volumes: "{{ cloudkitty_extra_volumes }}"

ansible/roles/cloudkitty/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"
 
@@ -26,5 +27,6 @@
     image: "{{ service.image }}"
     volumes: "{{ service.volumes|reject('equalto', '')|list }}"
     dimensions: "{{ service.dimensions }}"
+    healthcheck: "{{ service.healthcheck | default(omit) }}"
   when:
     - kolla_action != "config"

ansible/roles/cloudkitty/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-cloudkitty-a032d6408b7eea26.yaml

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