Ansible Role: Swap

Configure swapfile.

NOTE: You have to reboot your server in order to apply all configuration changes.

Requirements

None.

Role Variables

Available variables are listed below, along with default values (see defaults/main.yml):

swap_path: "/swapfile"

A swapfile location.

swap_dd_bs: 256

Block size. Used by dd. Hosts with low RAM may need using smaller block size.

swap_dd_count: 16

Number of blocks. Used by dd. Total size (M) of the swapfile equals swap_dd_bs * swap_dd_count.

swap_swappiness: 30

Tendency to use swap, 0 = prevent OOM only, 100 = swap often. Default Ubuntu value is 60. Read more about swapiness.

swap_vfs_cache_pressure: 50

Tendency of the kernel to reclaim the memory which is used for caching of VFS caches, versus pagecache and swap. Increasing this value increases the rate at which VFS caches are reclaimed.

A list of users who will be added to passwordless sudo group.

Dependencies

None.

Example Playbook

- hosts: servers
  roles:
     - { role: danylevskyi.swap }

TODO

• Add tests.

License

BSD / MIT

Author Information

This role was created in 2017 by Dmytro Danylevskyi.