community.general.apache2_mod_proxy module – Set and/or get members’ attributes of an Apache httpd 2.4 mod_proxy balancer pool

Note

This module is part of the community.general collection (version 6.3.0).

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 community.general.

To use it in a playbook, specify: community.general.apache2_mod_proxy.

Synopsis

  • Set and/or get members’ attributes of an Apache httpd 2.4 mod_proxy balancer pool, using HTTP POST and GET requests. The httpd mod_proxy balancer-member status page has to be enabled and accessible, as this module relies on parsing this page. This module supports ansible check_mode, and requires BeautifulSoup python module.

Parameters

Parameter

Comments

balancer_url_suffix

string

Suffix of the balancer pool url required to access the balancer pool status page (e.g. balancer_vhost[:port]/balancer_url_suffix).

Default: "/balancer-manager/"

balancer_vhost

string / required

(ipv4|ipv6|fqdn):port of the Apache httpd 2.4 mod_proxy balancer pool.

member_host

string

(ipv4|ipv6|fqdn) of the balancer member to get or to set attributes to. Port number is autodetected and should not be specified here. If undefined, apache2_mod_proxy module will return a members list of dictionaries of all the current balancer pool members’ attributes.

state

string

Desired state of the member host. (absent|disabled),drained,hot_standby,ignore_errors can be simultaneously invoked by separating them with a comma (e.g. state=drained,ignore_errors).

Accepted state values: [“present”, “absent”, “enabled”, “disabled”, “drained”, “hot_standby”, “ignore_errors”]

tls

boolean

Use https to access balancer management page.

Choices:

  • false ← (default)

  • true

validate_certs

boolean

Validate ssl/tls certificates.

Choices:

  • false

  • true ← (default)

Examples

- name: Get all current balancer pool members attributes
  community.general.apache2_mod_proxy:
    balancer_vhost: 10.0.0.2

- name: Get a specific member attributes
  community.general.apache2_mod_proxy:
    balancer_vhost: myws.mydomain.org
    balancer_suffix: /lb/
    member_host: node1.myws.mydomain.org

# Enable all balancer pool members:
- name: Get attributes
  community.general.apache2_mod_proxy:
    balancer_vhost: '{{ myloadbalancer_host }}'
  register: result

- name: Enable all balancer pool members
  community.general.apache2_mod_proxy:
    balancer_vhost: '{{ myloadbalancer_host }}'
    member_host: '{{ item.host }}'
    state: present
  with_items: '{{ result.members }}'

# Gracefully disable a member from a loadbalancer node:
- name: Step 1
  community.general.apache2_mod_proxy:
    balancer_vhost: '{{ vhost_host }}'
    member_host: '{{ member.host }}'
    state: drained
  delegate_to: myloadbalancernode

- name: Step 2
  ansible.builtin.wait_for:
    host: '{{ member.host }}'
    port: '{{ member.port }}'
    state: drained
  delegate_to: myloadbalancernode

- name: Step 3
  community.general.apache2_mod_proxy:
    balancer_vhost: '{{ vhost_host }}'
    member_host: '{{ member.host }}'
    state: absent
  delegate_to: myloadbalancernode

Return Values

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

Key

Description

member

dictionary

specific balancer member information dictionary, returned when apache2_mod_proxy module is invoked with member_host parameter.

Returned: success

Sample: {"attributes": {"Busy": "0", "Elected": "42", "Factor": "1", "From": "136K", "Load": "0", "Route": null, "RouteRedir": null, "Set": "0", "Status": "Init Ok ", "To": " 47K", "Worker URL": null}, "balancer_url": "http://10.10.0.2/balancer-manager/", "host": "10.10.0.20", "management_url": "http://10.10.0.2/lb/?b=mywsbalancer&w=http://10.10.0.20:8080/ws&nonce=8925436c-79c6-4841-8936-e7d13b79239b", "path": "/ws", "port": 8080, "protocol": "http", "status": {"disabled": false, "drained": false, "hot_standby": false, "ignore_errors": false}}

members

list / elements=string

list of member (defined above) dictionaries, returned when apache2_mod_proxy is invoked with no member_host and state args.

Returned: success

Sample: [{"attributes": {"Busy": "0", "Elected": "42", "Factor": "1", "From": "136K", "Load": "0", "Route": null, "RouteRedir": null, "Set": "0", "Status": "Init Ok ", "To": " 47K", "Worker URL": null}, "balancer_url": "http://10.10.0.2/balancer-manager/", "host": "10.10.0.20", "management_url": "http://10.10.0.2/lb/?b=mywsbalancer&w=http://10.10.0.20:8080/ws&nonce=8925436c-79c6-4841-8936-e7d13b79239b", "path": "/ws", "port": 8080, "protocol": "http", "status": {"disabled": false, "drained": false, "hot_standby": false, "ignore_errors": false}}, {"attributes": {"Busy": "0", "Elected": "42", "Factor": "1", "From": "136K", "Load": "0", "Route": null, "RouteRedir": null, "Set": "0", "Status": "Init Ok ", "To": " 47K", "Worker URL": null}, "balancer_url": "http://10.10.0.2/balancer-manager/", "host": "10.10.0.21", "management_url": "http://10.10.0.2/lb/?b=mywsbalancer&w=http://10.10.0.21:8080/ws&nonce=8925436c-79c6-4841-8936-e7d13b79239b", "path": "/ws", "port": 8080, "protocol": "http", "status": {"disabled": false, "drained": false, "hot_standby": false, "ignore_errors": false}}]

Authors

  • Olivier Boukili (@oboukili)