zram_generator

zram_generator configuration

Project URL RSS Feed Report issues

Module Stats

650 downloads

87 latest version

5.0 quality score

Version information

released Jul 29th 2024

This version is compatible with:

Puppet Enterprise 2023.8.x, 2023.7.x, 2023.6.x, 2023.5.x, 2023.4.x, 2023.3.x, 2023.2.x, 2023.1.x, 2023.0.x, 2021.7.x, 2021.6.x, 2021.5.x, 2021.4.x, 2021.3.x, 2021.2.x, 2021.1.x, 2021.0.x
Puppet >= 7.0.0 < 9.0.0
, , , , , , Archlinux

Start using this module

Installation method

Add this module to your Puppetfile:

mod 'puppet-zram_generator', '2.0.0'

Learn more about managing modules with a Puppetfile

Add this module to your Bolt project:

bolt module add puppet-zram_generator

Learn more about using this module with an existing project

Manually install this module globally with Puppet module tool:

puppet module install puppet-zram_generator --version 2.0.0

Tags: ram, zram, voxpupuli

Documentation

puppet/zram_generator — version 2.0.0 Jul 29th 2024

Puppet Module for zram_generator

Description

Installs and configures zram_generator

Example

zram_generator::zram{'zram1':
  zram_size         => 'ram / 2',
}

This will create a /dev/zram1 device half the size of available RAM and activate it.

Hiera Example

A set of zram_generator::zram can be loaded from hiera:

zram_generator::zrams:
  zram0:
    fs_type: 'ext4'
    mount_point: '/run/mount'
  zram1:
    zram_size: 1024

Reference

See REFERENCE.md for full details of parameters.

Reference

Classes

Public Classes

zram_generator: Install and configure zram_generator zram mounts

Private Classes

zram_generator::config: Configuration for zram_generator entries
zram_generator::install: Install zram-generator pacakge
zram_generator::service: Class to regenerate swap file units

Defined types

zram_generator::zram: Creates a zram device and optionally mounts it

Classes

`zram_generator`

Install and configure zram_generator zram mounts

See also
- https://github.com/systemd/zram-generator

Parameters

The following parameters are available in the zram_generator class:

install_defaults
manage_defaults_package
zrams

`install_defaults`

Data type: Enum['installed', 'absent']

Controls if the package 'zram-generator-defaults' be installed.

Default value: 'absent'

`manage_defaults_package`

Data type: Boolean

whether the zram-generator-defaults package should be managed

Default value: $facts['os']['name'] != 'Archlinux'

`zrams`

Data type: Stdlib::CreateResources

Hash of zram_generator::zram instances to expand from hiera.

Default value: {}

Defined types

`zram_generator::zram`

Creates a zram device and optionally mounts it

See also
- zram_generator
  - https://github.com/systemd/zram-generator/blob/main/man/zram-generator.conf.md

Examples

Create zram device with default `zram_size`

zram_generator::zram{'zram0':
  ensure => 'present',
}

Disable a particular swap

zram_generator::zram{'zram1':
  ensure => 'absent',
}

Create zram device with half ram size and host memory limit

zram_generator::zram{'zram1':
  host_memory_limit => 9048,
  zram_size         => 'ram / 2',
}

Create zram device with exact 1024 MiB size

zram_generator::zram{'zram2':
  zram_size         => 1024,
}

Create a ext4 filesystem and mount at location.

zram_generator::zram{'zram2':
  fs_type            => 'ext4',
  mount_point        => '/run/compressed-mount-point',
}

Parameters

The following parameters are available in the zram_generator::zram defined type:

device
ensure
host_memory_limit
zram_size
compression_algorithm
writeback_device
swap_priority
mount_point
fs_type
options

`device`

Data type: Pattern[/\Azram\d+\z/]

The name of device to create, e.g. zram0.

Default value: $title

`ensure`

Data type: Enum['present','absent']

Configure and start device or stop and de-configure device

Default value: 'present'

`host_memory_limit`

Data type: Variant[Enum['none'],Integer[0]]

The maximum amount of memory (in MiB). If set to none then there will be no limit.

Default value: 'none'

`zram_size`

Data type: Variant[Integer[1], String[1]]

The size of the zram device, as a function of MemTotal or absolute, both in MB.

Default value: 'min(ram / 2, 4096)'

`compression_algorithm`

Data type: Optional[String[1]]

Specifies the algorithm used to compress the zram device. If unset will use kernel's default.

Default value: undef

`writeback_device`

Data type: Optional[Stdlib::Unixpath]

Write incompressible pages, for which no gain was achieved, to the specified device under memory pressure. This corresponds to the /sys/block/zramX/backing_dev parameter. Takes a path to a block device, like /dev/disk/by-partuuid/2d54ffa0-01 or /dev/zvol/tarta-zoot/swap-writeback. If unset, none is used, and incompressible pages are kept in RAM.

Default value: undef

`swap_priority`

Data type: Integer[-1,32767]

Controls the relative swap priority. Higher numbers indicate higher priority.

Default value: 100

`mount_point`

Data type: Optional[Stdlib::Unixpath]

Format the device with a file system (not as swap) and mount this file system over the specified directory. When neither this option nor fs_type is specified, the device will be formatted as swap.

Default value: undef

`fs_type`

Data type: Optional[String[1]]

Specifies how the device shall be formatted. The default is ext2 if mount-point is specified, and swap otherwise. (Effectively, the device will be formatted as swap, if neither fs_type nor mount_point are specified.) Note that the device is temporary: contents will be destroyed automatically after the file system is unmounted (to release the backing memory).

Default value: undef

`options`

Data type: String[1]

Sets mount or swapon options. Availability depends on fs-type.

Default value: 'discard'


                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the
      editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions
      to that Work or Derivative Works thereof, that is intentionally
      submitted to Licensor for inclusion in the Work by the copyright owner
      or by an individual or Legal Entity authorized to submit on behalf of
      the copyright owner. For the purposes of this definition, "submitted"
      means any form of electronic, verbal, or written communication sent
      to the Licensor or its representatives, including but not limited to
      communication on electronic mailing lists, source code control systems,
      and issue tracking systems that are managed by, or on behalf of, the
      Licensor for the purpose of discussing and improving the Work, but
      excluding communication that is conspicuously marked or otherwise
      designated in writing by the copyright owner as "Not a Contribution."

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the
      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
      cross-claim or counterclaim in a lawsuit) alleging that the Work
      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,
          excluding those notices that do not pertain to any part of
          the Derivative Works; and

      (d) If the Work includes a "NOTICE" text file as part of its
          distribution, then any Derivative Works that You distribute must
          include a readable copy of the attribution notices contained
          within such NOTICE file, excluding those notices that do not
          pertain to any part of the Derivative Works, in at least one
          of the following places: within a NOTICE text file distributed
          as part of the Derivative Works; within the Source form or
          documentation, if provided along with the Derivative Works; or,
          within a display generated by the Derivative Works, if and
          wherever such third-party notices normally appear. The contents
          of the NOTICE file are for informational purposes only and
          do not modify the License. You may add Your own attribution
          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions
      for use, reproduction, or distribution of Your modifications, or
      for any such Derivative Works as a whole, provided Your use,
      reproduction, and distribution of the Work otherwise complies with
      the conditions stated in this License.

   5. Submission of Contributions. Unless You explicitly state otherwise,
      any Contribution intentionally submitted for inclusion in the Work
      by You to the Licensor shall be under the terms and conditions of
      this License, without any additional terms or conditions.
      Notwithstanding the above, nothing herein shall supersede or modify
      the terms of any separate license agreement you may have executed
      with Licensor regarding such Contributions.

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
      implied, including, without limitation, any warranties or conditions
      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
      PARTICULAR PURPOSE. You are solely responsible for determining the
      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be
      liable to You for damages, including any direct, indirect, special,
      incidental, or consequential damages of any character arising as a
      result of this License or out of the use or inability to use the
      Work (including but not limited to damages for loss of goodwill,
      work stoppage, computer failure or malfunction, or any and all
      other commercial damages or losses), even if such Contributor
      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,
      defend, and hold each Contributor harmless for any liability
      incurred by, or claims asserted against, such Contributor by reason
      of your accepting any such warranty or additional liability.

   END OF TERMS AND CONDITIONS

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
      boilerplate notice, with the fields enclosed by brackets "[]"
      replaced with your own identifying information. (Don't include
      the brackets!)  The text should be enclosed in the appropriate
      comment syntax for the file format. We also recommend that a
      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright 2022 CERN

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

Modules

Discover

Contribute

Puppet

Premium features

Downloads

Resources

About Forge

Getting Started

zram_generator

Version information

This version is compatible with:

Start using this module

Documentation

Puppet Module for zram_generator

Description

Example

Hiera Example

Reference

Reference

Table of Contents

Classes

Public Classes

Private Classes

Defined types

Classes

zram_generator

Parameters

install_defaults

manage_defaults_package

zrams

Defined types

zram_generator::zram

Examples

Create zram device with default zram_size

Disable a particular swap

Create zram device with half ram size and host memory limit

Create zram device with exact 1024 MiB size

Create a ext4 filesystem and mount at location.

Parameters

device

ensure

host_memory_limit

zram_size

compression_algorithm

writeback_device

swap_priority

mount_point

fs_type

options

Changelog

v2.0.0 (2024-06-23)

v1.1.0 (2023-01-05)

v1.0.0 (2022-08-30)

Dependencies

`zram_generator`

`install_defaults`

`manage_defaults_package`

`zrams`

`zram_generator::zram`

Create zram device with default `zram_size`

`device`

`ensure`

`host_memory_limit`

`zram_size`

`compression_algorithm`

`writeback_device`

`swap_priority`

`mount_point`

`fs_type`

`options`