community.general.consul – Add, modify & delete services within a consul cluster.

• Synopsis
• Requirements
• Parameters
• Examples

Synopsis

• Registers services and checks for an agent with a consul cluster. A service is some process running on the agent node that should be advertised by consul’s discovery mechanism. It may optionally supply a check definition, a periodic service test to notify the consul cluster of service’s health.
• Checks may also be registered per node e.g. disk usage, or cpu usage and notify the health of the entire node to the cluster. Service level checks do not require a check name or id as these are derived by Consul from the Service name and id respectively by appending ‘service:’ Node level checks require a check_name and optionally a check_id.
• Currently, there is no complete way to retrieve the script, interval or ttl metadata for a registered check. Without this metadata it is not possible to tell if the data supplied with ansible represents a change to a check. As a result this does not attempt to determine changes and will always report a changed occurred. An API method is planned to supply this metadata so at that stage change management will be added.
• See http://consul.io for more details.

Requirements

The below requirements are needed on the host that executes this module.

• python-consul
• requests

Parameters

Examples

- name: Register nginx service with the local consul agent
  community.general.consul:
    service_name: nginx
    service_port: 80

- name: Register nginx service with curl check
  community.general.consul:
    service_name: nginx
    service_port: 80
    script: curl http://localhost
    interval: 60s

- name: register nginx with a tcp check
  community.general.consul:
    service_name: nginx
    service_port: 80
    interval: 60s
    tcp: localhost:80

- name: Register nginx with an http check
  community.general.consul:
    service_name: nginx
    service_port: 80
    interval: 60s
    http: http://localhost:80/status

- name: Register external service nginx available at 10.1.5.23
  community.general.consul:
    service_name: nginx
    service_port: 80
    service_address: 10.1.5.23

- name: Register nginx with some service tags
  community.general.consul:
    service_name: nginx
    service_port: 80
    tags:
      - prod
      - webservers

- name: Remove nginx service
  community.general.consul:
    service_name: nginx
    state: absent

- name: Register celery worker service
  community.general.consul:
    service_name: celery-worker
    tags:
      - prod
      - worker

- name: Create a node level check to test disk usage
  community.general.consul:
    check_name: Disk usage
    check_id: disk_usage
    script: /opt/disk_usage.py
    interval: 5m

- name: Register an http check against a service that's already registered
  community.general.consul:
    check_name: nginx-check2
    check_id: nginx-check2
    service_id: nginx
    interval: 60s
    http: http://localhost:80/morestatus

Authors

• Steve Gargan (@sgargan)