ansible-swapfile

This role configures a swapfile (/swapfile) with the (default) size of 512MB.

Dependencies

None.

Variables

• swapfile_use_dd [default: False]: if set to False, fallocate is used to create the swapfile, otherwise, dd is used. You may need to set this to True if your filesystem does not support fallocate -- see Issue #3.

• swapfile_size [default: 512MB]: 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.

  If swapfile_use_dd is set to True, swapfile_size must be set to the amount of megabytes to write, e.g. 512.

• 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

• swapfile_vfs_cache_pressure [default: False]: "this percentage value controls the tendency of the kernel to reclaim the memory which is used for caching of directory and inode objects."

Usage

- hosts: all
  roles:
    - viasite-ansible.swapfile

or:

- hosts: all
  roles:
    - { role: viasite-ansible.swapfile, swapfile_size: 1GB, swapfile_swappiness: 10, swapfile_location: /mnt/swapfile }

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

License

The MIT License (MIT)

Copyright (c) 2014 Kamal Nasser hello@kamal.io

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.