f5networks.f5_modules.bigip_node module – Manages F5 BIG-IP LTM nodes

Note

This module is part of the f5networks.f5_modules collection (version 1.16.0).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install f5networks.f5_modules.

To use it in a playbook, specify: f5networks.f5_modules.bigip_node.

New in version 1.0.0: of f5networks.f5_modules

Synopsis

  • Manages F5 BIG-IP LTM nodes.

Parameters

Parameter

Comments

address

aliases: ip, host

string

IP address of the node. This can be either IPv4 or IPv6. When creating a new node, you must provide one of either address or fqdn. This parameter cannot be updated after it is set.

availability_requirements

dictionary

If you activate more than one health monitor, specifies the number of health monitors that must receive successful responses in order for the link to be considered available.

at_least

integer

Specifies the minimum number of active health monitors that must be successful before the link is considered up.

This parameter is only relevant when a type of at_least is used.

This parameter will be ignored if a type of all is used.

type

string / required

Monitor rule type when monitors is specified.

When creating a new pool, if this value is not specified, the default of ‘all’ will be used.

Choices:

  • all

  • at_least

connection_limit

integer

Node connection limit. Setting this to 0 disables the limit.

description

string

Specifies descriptive text that identifies the node.

You can remove a description by either specifying an empty string, or by specifying the special value none.

dynamic_ratio

integer

The dynamic ratio number for the node. Used for dynamic ratio load balancing.

When creating a new node, if this parameter is not specified, the default of 1 will be used.

fqdn

aliases: hostname

string

FQDN name of the node. This can be any name that is a valid RFC 1123 DNS name. Therefore, the only characters that can be used are “A” to “Z”, “a” to “z”, “0” to “9”, the hyphen (“-“) and the period (“.”).

FQDN names must include at least one period; delineating the host from the domain. For example, host.domain.

FQDN names must end with a letter or a number.

When creating a new node, you must provide one of either address or fqdn provided. This parameter cannot be updated after it is set.

fqdn_address_type

string

Specifies whether the FQDN of the node resolves to an IPv4 or IPv6 address.

When creating a new node, if this parameter is not specified and fqdn is specified, this parameter will default to ipv4.

This parameter cannot be changed after it has been set.

Choices:

  • ipv4

  • ipv6

  • all

fqdn_auto_populate

boolean

Specifies whether the system automatically creates ephemeral nodes using the IP addresses returned by the resolution of a DNS query for a node defined by an FQDN.

When yes, the system generates an ephemeral node for each IP address returned in response to a DNS query for the FQDN of the node. Additionally, when a DNS response indicates the IP address of an ephemeral node no longer exists, the system deletes the ephemeral node.

When no, the system resolves a DNS query for the FQDN of the node with the single IP address associated with the FQDN.

When creating a new node, if this parameter is not specified and fqdn is specified, this parameter will default to yes.

This parameter cannot be changed after it has been set.

Choices:

  • no

  • yes

fqdn_down_interval

integer

Specifies the interval in which a query occurs, when the DNS server is down. The associated monitor continues polling as long as the DNS server is down.

When creating a new node, if this parameter is not specified and fqdn is specified, this parameter will default to 5.

fqdn_up_interval

string

Specifies the interval at which a query occurs, when the DNS server is up. The associated monitor attempts to probe three times, and marks the server down if it there is no response within the span of three times the interval value, in seconds.

This parameter accepts a value of ttl to query, based off of the TTL of the FQDN. The default TTL interval is similar to specifying 3600.

When creating a new node, if this parameter is not specified and fqdn is specified, this parameter will default to 3600.

monitors

list / elements=string

Specifies the health monitors the system currently uses to monitor this node.

name

string / required

Specifies the name of the node.

partition

string

Device partition to manage resources on.

Default: “Common”

provider

dictionary

added in 1.0.0 of f5networks.f5_modules

A dict object containing connection details.

auth_provider

string

Configures the auth provider for to obtain authentication tokens from the remote device.

This option is really used when working with BIG-IQ devices.

no_f5_teem

boolean

If yes, TEEM telemetry data is not sent to F5.

You may omit this option by setting the environment variable F5_TELEMETRY_OFF.

Previously used variable F5_TEEM is deprecated as its name was confusing.

Choices:

  • no ← (default)

  • yes

password

aliases: pass, pwd

string / required

The password for the user account used to connect to the BIG-IP.

You may omit this option by setting the environment variable F5_PASSWORD.

server

string / required

The BIG-IP host.

You may omit this option by setting the environment variable F5_SERVER.

server_port

integer

The BIG-IP server port.

You may omit this option by setting the environment variable F5_SERVER_PORT.

Default: 443

timeout

integer

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.

transport

string

Configures the transport connection to use when connecting to the remote device.

Choices:

  • rest ← (default)

user

string / required

The username to connect to the BIG-IP with. This user must have administrative privileges on the device.

You may omit this option by setting the environment variable F5_USER.

validate_certs

boolean

If no, SSL certificates are not validated. Use this only on personally controlled sites using self-signed certificates.

You may omit this option by setting the environment variable F5_VALIDATE_CERTS.

Choices:

  • no

  • yes ← (default)

rate_limit

integer

Node rate limit (connections-per-second). Setting this to 0 disables the limit.

ratio

integer

Node ratio weight. Valid values range from 1 through 100.

When creating a new node, if this parameter is not specified, the default of 1 will be used.

state

string

Specifies the current state of the node. enabled (All traffic allowed), specifies the system sends traffic to this node regardless of the node’s state. disabled (Only persistent or active connections allowed), specifies the node can handle only persistent or active connections. offline (Only active connections allowed), specifies the node can handle only active connections. In all cases except absent, the node will be created if it does not yet exist.

Be particularly careful about changing the status of a node whose FQDN cannot be resolved. These situations disable your ability to change their state to disabled or offline. They will remain in an Unavailable - Enabled state.

Choices:

  • present ← (default)

  • absent

  • enabled

  • disabled

  • offline

Notes

Note

  • For more information on using Ansible to manage F5 Networks devices see https://www.ansible.com/integrations/networks/f5.

  • Requires BIG-IP software version >= 12.

  • The F5 modules only manipulate the running configuration of the F5 product. To ensure that BIG-IP specific configuration persists to disk, be sure to include at least one task that uses the f5networks.f5_modules.bigip_config module to save the running configuration. Refer to the module’s documentation for the correct usage of the module to save your running configuration.

Examples

- name: Add node
  bigip_node:
    host: 10.20.30.40
    name: 10.20.30.40
    provider:
      server: lb.mydomain.com
      user: admin
      password: secret
  delegate_to: localhost

- name: Add node with a single 'ping' monitor
  bigip_node:
    host: 10.20.30.40
    name: mytestserver
    monitors:
      - /Common/icmp
    provider:
      server: lb.mydomain.com
      user: admin
      password: secret
  delegate_to: localhost

- name: Modify node description
  bigip_node:
    name: 10.20.30.40
    description: Our best server yet
    provider:
      server: lb.mydomain.com
      user: admin
      password: secret
  delegate_to: localhost

- name: Delete node
  bigip_node:
    state: absent
    name: 10.20.30.40
    provider:
      server: lb.mydomain.com
      user: admin
      password: secret
  delegate_to: localhost

- name: Force node offline
  bigip_node:
    state: disabled
    name: 10.20.30.40
    provider:
      server: lb.mydomain.com
      user: admin
      password: secret
  delegate_to: localhost

- name: Add node by their FQDN
  bigip_node:
    fqdn: foo.bar.com
    name: foobar.net
    provider:
      server: lb.mydomain.com
      user: admin
      password: secret
  delegate_to: localhost

Return Values

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

Key

Description

description

string

Changed value for the description of the node.

Returned: changed and success

Sample: “E-Commerce webserver in ORD”

monitors

list / elements=string

Changed list of monitors for the node.

Returned: changed and success

Sample: [“icmp”, “tcp_echo”]

session

string

Changed value for the internal session of the node.

Returned: changed and success

Sample: “user-disabled”

state

string

Changed value for the internal state of the node.

Returned: changed and success

Sample: “user-down”

Authors

  • Tim Rupp (@caphrim007)

  • Wojciech Wypior (@wojtek0806)