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Configures and loads zram kernel module


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Version information

  • 1.0.4 (latest)
  • 1.0.3
  • 1.0.2
  • 1.0.1
  • 1.0.0
  • 0.2.0
released Feb 28th 2022
This version is compatible with:
  • Puppet Enterprise 2021.6.x, 2021.5.x, 2021.4.x, 2021.3.x, 2021.2.x, 2021.1.x, 2021.0.x, 2019.8.x, 2019.7.x, 2019.5.x, 2019.4.x, 2019.3.x, 2019.2.x, 2019.1.x, 2019.0.x, 2018.1.x, 2017.3.x, 2017.2.x, 2016.4.x
  • Puppet >= 4.10.1 < 8.0.0
  • , , , , , ,
  • reload

Start using this module

  • r10k or Code Manager
  • Bolt
  • Manual installation
  • Direct download

Add this module to your Puppetfile:

mod 'silug-zram', '1.0.4'
Learn more about managing modules with a Puppetfile

Add this module to your Bolt project:

bolt module add silug-zram
Learn more about using this module with an existing project

Manually install this module globally with Puppet module tool:

puppet module install silug-zram --version 1.0.4

Direct download is not typically how you would use a Puppet module to manage your infrastructure, but you may want to download the module in order to inspect the code.

Tags: zram


silug/zram — version 1.0.4 Feb 28th 2022


Table of Contents


This module configures zram swap using udev rules (no init scripts or systemd units needed).

Module Description

Want to know more about zram? Read the Linux kernel documentation.


What zram affects

Creates the following files:

  • /lib/udev/zram
  • /etc/udev/rules.d/01-zram.rules
  • /etc/modprobe.d/zram.conf

Finally, it loads the zram module.

Setup Requirements

This module requires puppetlabs-stdlib and puppet-kmod.

Beginning with zram

Make sure you are using a kernel that includes the zram module.


class { 'zram': }


The zram class accepts the following parameters:

  • numdevices Number of zram devices. Defaults to the number of processors ($facts['processorcount']).

  • disksize Size of zram devices. Defaults to half of memory divided by numdevices.

See for more details.


This module has been tested on a number of systems. (See metadata.json for a full list.) It should work on any Linux distribution that includes the zram kernel module.


Send me a pull request on GitHub.