Try SpotterAdd, modify & delete services within a consul cluster.
| "added in version" 2.0 of ansible.builtin"
Authors: Steve Gargan (@sgargan)
preview | supported by community
pipInstall with pip install ansible==2.8.18
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.
- name: register nginx service with the local consul agent
consul:
service_name: nginx
service_port: 80
- name: register nginx service with curl check
consul:
service_name: nginx
service_port: 80
script: curl http://localhost
interval: 60s
- name: register nginx with an http check
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
consul:
service_name: nginx
service_port: 80
service_address: 10.1.5.23
- name: register nginx with some service tags
consul:
service_name: nginx
service_port: 80
tags:
- prod
- webservers
- name: remove nginx service
consul:
service_name: nginx
state: absent
- name: register celery worker service
consul:
service_name: celery-worker
tags:
- prod
- worker
- name: create a node level check to test disk usage
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
consul:
check_name: nginx-check2
check_id: nginx-check2
service_id: nginx
interval: 60s
http: http://localhost:80/morestatus
ttl:
description:
- checks can be registered with a ttl instead of a script and interval this means
that the service will check in with the agent before the ttl expires. If it doesn't
the check will be considered failed. Required if registering a check and the script
an interval are missing Similar to the interval this is a number with a s or m suffix
to signify the units of seconds or minutes e.g 15s or 1m. If no suffix is supplied,
m will be used by default e.g. 1 will be 1m
host:
default: localhost
description:
- host of the consul agent defaults to localhost
http:
description:
- checks can be registered with an http endpoint. This means that consul will check
that the http endpoint returns a successful http status. Interval must also be provided
with this option.
version_added: '2.0'
version_added_collection: ansible.builtin
port:
default: 8500
description:
- the port on which the consul agent is running
tags:
description:
- a list of tags that will be attached to the service registration.
notes:
description:
- Notes to attach to check when registering it.
state:
choices:
- present
- absent
description:
- register or deregister the consul service, defaults to present
required: true
token:
description:
- the token key indentifying an ACL rule set. May be required to register services.
scheme:
default: http
description:
- the protocol scheme on which the consul agent is running
version_added: '2.1'
version_added_collection: ansible.builtin
script:
description:
- the script/command that will be run periodically to check the health of the service.
Scripts require an interval and vise versa
timeout:
description:
- A custom HTTP check timeout. The consul default is 10 seconds. Similar to the interval
this is a number with a s or m suffix to signify the units of seconds or minutes,
e.g. 15s or 1m.
version_added: '2.0'
version_added_collection: ansible.builtin
check_id:
description:
- an ID for the service check, defaults to the check name, ignored if part of a service
definition.
interval:
description:
- the interval at which the service check will be run. This is a number with a s or
m suffix to signify the units of seconds or minutes e.g 15s or 1m. If no suffix
is supplied, m will be used by default e.g. 1 will be 1m. Required if the script
param is specified.
check_name:
description:
- a name for the service check, defaults to the check id. required if standalone,
ignored if part of service definition.
service_id:
default: service_name if supplied
description:
- the ID for the service, must be unique per node, defaults to the service name if
the service name is supplied
service_name:
description:
- Unique name for the service on a node, must be unique per node, required if registering
a service. May be omitted if registering a node level check
service_port:
description:
- the port on which the service is listening. Can optionally be supplied for registration
of a service, i.e. if service_name or service_id is set
validate_certs:
default: 'yes'
description:
- whether to verify the tls certificate of the consul agent
type: bool
version_added: '2.1'
version_added_collection: ansible.builtin
service_address:
description:
- the address to advertise that the service will be listening on. This value will
be passed as the I(Address) parameter to Consul's U(/v1/agent/service/register)
API method, so refer to the Consul API documentation for further details.
version_added: '2.1'
version_added_collection: ansible.builtin