Try SpotterAdd, modify & delete services within a consul cluster.
Authors: Steve Gargan (@sgargan)
Install with ansible-galaxy collection install community.general:==2.5.9
collections:
- name: community.general
version: 2.5.9Registers 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 I(check_name) and optionally a I(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 U(http://consul.io) for more details.
- 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
tcp:
description:
- Checks can be registered with a TCP port. This means that consul will check if the
connection attempt to that port is successful (that is, the port is currently accepting
connections). The format is C(host:port), for example C(localhost:80). I(interval)
must also be provided with this option.
type: str
version_added: 1.3.0
version_added_collection: community.general
ttl:
description:
- checks can be registered with a ttl instead of a I(script) and I(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 C(15s) or C(1m).
If no suffix is supplied, C(m) will be used by default e.g. C(1) will be C(1m)
type: str
host:
default: localhost
description:
- host of the consul agent defaults to localhost
type: str
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. I(interval) must also be
provided with this option.
type: str
port:
default: 8500
description:
- the port on which the consul agent is running
type: int
tags:
description:
- tags that will be attached to the service registration.
elements: str
type: list
notes:
description:
- Notes to attach to check when registering it.
type: str
state:
choices:
- present
- absent
default: present
description:
- register or deregister the consul service, defaults to present
type: str
token:
description:
- the token key identifying an ACL rule set. May be required to register services.
type: str
scheme:
default: http
description:
- the protocol scheme on which the consul agent is running
type: str
script:
description:
- the script/command that will be run periodically to check the health of the service.
Scripts require I(interval) and vice versa.
type: str
timeout:
description:
- A custom HTTP check timeout. The consul default is 10 seconds. Similar to the interval
this is a number with a C(s) or C(m) suffix to signify the units of seconds or minutes,
e.g. C(15s) or C(1m).
type: str
check_id:
description:
- an ID for the service check. If I(state=absent), defaults to I(check_name). Ignored
if part of a service definition.
type: str
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 C(15s) or C(1m). If no suffix
is supplied, m will be used by default e.g. C(1) will be C(1m). Required if the
I(script) parameter is specified.
type: str
check_name:
description:
- a name for the service check. Required if standalone, ignored if part of service
definition.
type: str
service_id:
description:
- the ID for the service, must be unique per node. If I(state=absent), defaults to
the service name if supplied.
type: str
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
type: str
service_port:
description:
- the port on which the service is listening. Can optionally be supplied for registration
of a service, i.e. if I(service_name) or I(service_id) is set
type: int
validate_certs:
default: 'yes'
description:
- whether to verify the TLS certificate of the consul agent
type: bool
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.
type: str