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Mageia container templates

Build LXC, Incus and Docker images of Mageia.

Status

LXC Incus Docker

Installation and usage

Stable images are available on Releases page.

Testing images are available on Actions page.

LXC

Proxmox

On WebUI, you can import Mageia's rootfs.tar.xz by going to: Storage > CT Templates > Upload

You can then create a new container.

LXC CLI

TDB

Incus

CLI

$ incus image import incus.tar.xz disk.qcow2

QEMU

  • GUI virt-manager: add disk.qcow2 as a SATA device and set the machine in UEFI.

  • CLI qemu tool:

$ qemu-system-x86_64

VirtualBox

  1. Convert qcow2 to vdi:
$ qemu-img convert -f qcow2 -O vdi disk.qcow2 disk.vdi
  1. In VirtualBox, create an empty VM.
  2. Add the previously generated disk.vdi as a SATA device.

Docker

You can import Mageia's docker.tar.xz in registry:

$ docker import ./docker.tar.xz mageia:<version>

Then test the image:

$ docker run -it mageia:<version> bash

Development

Multiple stages are needed to go from an empty filesystem to a ready-to-go Mageia.

  1. Craft minimal system: install core (and some extra) packages needed for the newly built system
  2. Compress filesystem read-only: reduce built system size
  3. Build for target: target specific modifications (e.g. needed packages for VM), metadata, filesystem edits

As urpmi is used to install the needed packages, it is adviced to build image from a Mageia (virtual) machine. It should not be too hard to allow building from another host package manager.

Building process is made available through the Makefile.

Craft minimal system

Makefile target: minimal-fs

Steps:

  • Initialize the RPM database for Mageia in a directory
  • Add Mageia repositories in host package manager source lists
  • Install OS specific packages: mageia-release-Default, mageia-release-common, lsb-release
  • Install basic packages: urpmi, locales, systemd, ...

Compress filesystem read-only

Makefile target: squash-fs

Output is a .sqfs file.

Build for target

Makefile target: build

Distrobuilder needs an image config file: mageia.yaml.

mageia.yaml describes:

  • Image metadata: OS, version, arch
  • Extra packages to install -> TBD
  • Scripts to execute inside the new system
  • Targets: vm, container, cloud, ...default

Distrobuilder is used for:

  1. Applying system modifications: basic config, set locale, fix symlinks, ...
  2. Packing for LXC: produce rootfs and meta data files, plus qcow2 for Incus