zram_generator

zram_generator configuration

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652 downloads

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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'


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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`