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S(" i ( t absolute_importt divisiont print_functions 1.1t metadata_versiont previewt statust communityt supported_bysy
module: consul
short_description: "Add, modify & delete services within a consul cluster."
description:
- 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 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."
requirements:
- python-consul
- requests
version_added: "2.0"
author: "Steve Gargan (@sgargan)"
options:
state:
description:
- register or deregister the consul service, defaults to present
default: present
choices: ['present', 'absent']
service_name:
type: str
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_id:
type: str
description:
- the ID for the service, must be unique per node. If I(state=absent),
defaults to the service name if supplied.
host:
type: str
description:
- host of the consul agent defaults to localhost
default: localhost
port:
type: int
description:
- the port on which the consul agent is running
default: 8500
scheme:
type: str
description:
- the protocol scheme on which the consul agent is running
default: http
version_added: "2.1"
validate_certs:
description:
- whether to verify the TLS certificate of the consul agent
type: bool
default: 'yes'
version_added: "2.1"
notes:
type: str
description:
- Notes to attach to check when registering it.
service_port:
type: int
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
service_address:
type: str
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"
tags:
type: list
description:
- tags that will be attached to the service registration.
script:
type: str
description:
- the script/command that will be run periodically to check the health
of the service. Scripts require I(interval) and vice versa.
interval:
type: str
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.
check_id:
type: str
description:
- an ID for the service check. If I(state=absent), defaults to
I(check_name). Ignored if part of a service definition.
check_name:
type: str
description:
- a name for the service check. Required if standalone, ignored if
part of service definition.
ttl:
type: str
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)
http:
type: str
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.
version_added: "2.0"
timeout:
type: str
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).
version_added: "2.0"
token:
type: str
description:
- the token key identifying an ACL rule set. May be required to register services.
s
- 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
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