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ansible.posix.sysctl – Manage entries in sysctl.conf.

Note

This plugin is part of the ansible.posix collection.

To install it use: ansible-galaxy collection install ansible.posix.

To use it in a playbook, specify: ansible.posix.sysctl.

New in version 1.0.0: of ansible.posix

Synopsis

  • This module manipulates sysctl entries and optionally performs a /sbin/sysctl -p after changing them.

Parameters

Parameter Choices/Defaults Comments
ignoreerrors
boolean
    Choices:
  • no ←
  • yes
Use this option to ignore errors about unknown keys.
name
string / required
The dot-separated path (aka key) specifying the sysctl variable.

aliases: key
reload
boolean
    Choices:
  • no
  • yes ←
If yes, performs a /sbin/sysctl -p if the sysctl_file is updated. If no, does not reload sysctl even if the sysctl_file is updated.
state
string
    Choices:
  • present ←
  • absent
Whether the entry should be present or absent in the sysctl file.
sysctl_file
string
Default:
"/etc/sysctl.conf"
Specifies the absolute path to sysctl.conf, if not /etc/sysctl.conf.
sysctl_set
boolean
    Choices:
  • no ←
  • yes
Verify token value with the sysctl command and set with -w if necessary
value
string
Desired value of the sysctl key.

aliases: val

Examples

# Set vm.swappiness to 5 in /etc/sysctl.conf
- ansible.posix.sysctl:
    name: vm.swappiness
    value: '5'
    state: present

# Remove kernel.panic entry from /etc/sysctl.conf
- ansible.posix.sysctl:
    name: kernel.panic
    state: absent
    sysctl_file: /etc/sysctl.conf

# Set kernel.panic to 3 in /tmp/test_sysctl.conf
- ansible.posix.sysctl:
    name: kernel.panic
    value: '3'
    sysctl_file: /tmp/test_sysctl.conf
    reload: no

# Set ip forwarding on in /proc and verify token value with the sysctl command
- ansible.posix.sysctl:
    name: net.ipv4.ip_forward
    value: '1'
    sysctl_set: yes

# Set ip forwarding on in /proc and in the sysctl file and reload if necessary
- ansible.posix.sysctl:
    name: net.ipv4.ip_forward
    value: '1'
    sysctl_set: yes
    state: present
    reload: yes

Authors

© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.10/collections/ansible/posix/sysctl_module.html