ansible-swapfile

This role configures a swapfile (/swapfile) with the (default) size of 1024MB.

Dependencies

None.

Variables

• swapfile_size [default: 1024MB]: the size of the swapfile to create in the format that fallocate expects:

  The length and offset arguments may be followed by binary (2^N) suffixes KiB, MiB, GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the same meaning as "KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.

• swapfile_location [default: /swapfile]: the location of where the swapfile will be created

Optional

The following variables are set to False by default and will not have any effect on your hosts. Setting them to any value other than False will update your hosts' sysctl.conf file.

• swapfile_swappiness [default: False]: the swappiness percentage (vm.swappiness) -- the lower it is, the less your system swaps memory pages

Usage

- hosts: swapfile_enabled_hosts
  roles:
  - { role: coreos-swapfile-ansible, when: ansible_distribution == "CoreOS" }

or:

- hosts: swapfile_enabled_hosts
  roles:
  - { role: coreos-swapfile-ansible, when: ansible_distribution == "CoreOS", swapfile_size: 1GB, swapfile_swappiness: 10 }

You can also set the variables described above in group_vars or host_vars (see defaults/main.yml).