bigip_pool - Manages F5 BIG-IP LTM pools¶

Synopsis
- Requirements
Parameters
Notes
Examples
Return Values
Status
- Author

Synopsis ¶

Manages F5 BIG-IP LTM pools via iControl REST API.

Requirements ¶

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

f5-sdk >= 3.0.9

Parameters ¶

Parameter	Choices/Defaults	Comments
description (added in 2.3)		Specifies descriptive text that identifies the pool.
lb_method (added in 1.3)	Choices: dynamic-ratio-member dynamic-ratio-node fastest-app-response fastest-node least-connections-member least-connections-node least-sessions observed-member observed-node predictive-member predictive-node ratio-least-connections-member ratio-least-connections-node ratio-member ratio-node ratio-session round-robin weighted-least-connections-member weighted-least-connections-nod	Load balancing method. When creating a new pool, if this value is not specified, the default of `round-robin` will be used.
metadata (added in 2.5)		Arbitrary key/value pairs that you can attach to a pool. This is useful in situations where you might want to annotate a pool to me managed by Ansible. Key names will be stored as strings; this includes names that are numbers. Values for all of the keys will be stored as strings; this includes values that are numbers. Data will be persisted, not ephemeral.
monitor_type (added in 1.3)	Choices: and_list m_of_n single	Monitor rule type when `monitors` is specified. When creating a new pool, if this value is not specified, the default of 'and_list' will be used. When `single` ensures that all specified monitors are checked, but additionally includes checks to make sure you only specified a single monitor. When `and_list` ensures that all monitors are checked. When `m_of_n` ensures that `quorum` of `monitors` are checked. `m_of_n` requires that a `quorum` of 1 or greater be set either in the playbook, or already existing on the device. Both `single` and `and_list` are functionally identical since BIG-IP considers all monitors as "a list".
monitors (added in 1.3)		Monitor template name list. If the partition is not provided as part of the monitor name, then the `partition` option will be used instead.
name required		Pool name aliases: pool
partition (added in 2.5)	Default: Common	Device partition to manage resources on.
password required		The password for the user account used to connect to the BIG-IP. You can omit this option if the environment variable `F5_PASSWORD` is set. aliases: pass, pwd
provider (added in 2.5)		A dict object containing connection details.
ssh_keyfile		Specifies the SSH keyfile to use to authenticate the connection to the remote device. This argument is only used for cli transports. If the value is not specified in the task, the value of environment variable `ANSIBLE_NET_SSH_KEYFILE` will be used instead.
timeout	Default: 10	Specifies the timeout in seconds for communicating with the network device for either connecting or sending commands. If the timeout is exceeded before the operation is completed, the module will error.
server required		The BIG-IP host. You can omit this option if the environment variable `F5_SERVER` is set.
user required		The username to connect to the BIG-IP with. This user must have administrative privileges on the device. You can omit this option if the environment variable `F5_USER` is set.
server_port	Default: 443	The BIG-IP server port. You can omit this option if the environment variable `F5_SERVER_PORT` is set.
password required		The password for the user account used to connect to the BIG-IP. You can omit this option if the environment variable `F5_PASSWORD` is set. aliases: pass, pwd
validate_certs	Choices: no yes ←	If `no`, SSL certificates will not be validated. Use this only on personally controlled sites using self-signed certificates. You can omit this option if the environment variable `F5_VALIDATE_CERTS` is set.
transport required	Choices: rest cli ←	Configures the transport connection to use when connecting to the remote device.
quorum (added in 1.3)		Monitor quorum value when `monitor_type` is `m_of_n`. Quorum must be a value of 1 or greater when `monitor_type` is `m_of_n`.
reselect_tries (added in 2.2)		Sets the number of times the system tries to contact a pool member after a passive failure.
server required		The BIG-IP host. You can omit this option if the environment variable `F5_SERVER` is set.
server_port (added in 2.2)	Default: 443	The BIG-IP server port. You can omit this option if the environment variable `F5_SERVER_PORT` is set.
service_down_action (added in 1.3)	Choices: none reset drop reselect	Sets the action to take when node goes down in pool.
slow_ramp_time (added in 1.3)		Sets the ramp-up time (in seconds) to gradually ramp up the load on newly added or freshly detected up pool members.
state (added in 2.5)	Choices: absent present ←	When `present`, guarantees that the pool exists with the provided attributes. When `absent`, removes the pool from the system.
user required		The username to connect to the BIG-IP with. This user must have administrative privileges on the device. You can omit this option if the environment variable `F5_USER` is set.
validate_certs (added in 2.0)	Choices: no yes ←	If `no`, SSL certificates will not be validated. Use this only on personally controlled sites using self-signed certificates. You can omit this option if the environment variable `F5_VALIDATE_CERTS` is set.

Notes ¶

Note

Requires BIG-IP software version >= 12.
To add members do a pool, use the bigip_pool_member module. Previously, the bigip_pool module allowed the management of users, but this has been removed in version 2.5 of Ansible.
For more information on using Ansible to manage F5 Networks devices see https://www.ansible.com/integrations/networks/f5.
Requires the f5-sdk Python package on the host. This is as easy as pip install f5-sdk.

Examples ¶

- name: Create pool
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    name: my-pool
    partition: Common
    lb_method: least-connection-member
    slow_ramp_time: 120
  delegate_to: localhost

- name: Modify load balancer method
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    name: my-pool
    partition: Common
    lb_method: round-robin
  delegate_to: localhost

- name: Add pool member
  bigip_pool_member:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    pool: my-pool
    partition: Common
    host: "{{ ansible_default_ipv4['address'] }}"
    port: 80
  delegate_to: localhost

- name: Set a single monitor (with enforcement)
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    name: my-pool
    partition: Common
    monitor_type: single
    monitors:
      - http
  delegate_to: localhost

- name: Set a single monitor (without enforcement)
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    name: my-pool
    partition: Common
    monitors:
      - http
  delegate_to: localhost

- name: Set multiple monitors (all must succeed)
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    name: my-pool
    partition: Common
    monitor_type: and_list
    monitors:
      - http
      - tcp
  delegate_to: localhost

- name: Set multiple monitors (at least 1 must succeed)
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: present
    name: my-pool
    partition: Common
    monitor_type: m_of_n
    quorum: 1
    monitors:
      - http
      - tcp
  delegate_to: localhost

- name: Remove pool member from pool
  bigip_pool_member:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: absent
    pool: my-pool
    partition: Common
    host: "{{ ansible_default_ipv4['address'] }}"
    port: 80
  delegate_to: localhost

- name: Delete pool
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: absent
    name: my-pool
    partition: Common
  delegate_to: localhost

- name: Add metadata to pool
  bigip_pool:
    server: lb.mydomain.com
    user: admin
    password: secret
    state: absent
    name: my-pool
    partition: Common
    metadata:
      ansible: 2.4
      updated_at: 2017-12-20T17:50:46Z
  delegate_to: localhost

Return Values ¶

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
description string	changed	Description set on the pool. Sample: Pool of web servers
lb_method string	changed	The LB method set for the pool. Sample: round-robin
metadata dict	changed	The new value of the pool. Sample: {'key2': 'bar', 'key1': 'foo'}
monitor_type string	changed	The contact that was set on the datacenter. Sample: admin@root.local
monitors list	changed	Monitors set on the pool. Sample: ['/Common/http', '/Common/gateway_icmp']
quorum int	changed	The quorum that was set on the pool. Sample: 2
reselect_tries int	changed	The new value that is set for the number of tries to contact member. Sample: 10
service_down_action string	changed	Service down action that is set on the pool. Sample: reset
slow_ramp_time int	changed	The new value that is set for the slow ramp-up time. Sample: 500

Status ¶

This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.

Author ¶

Tim Rupp (@caphrim007)
Wojciech Wypior (@wojtek0806)

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