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almalinux/ks2rootfs

By almalinux

•Updated almost 5 years ago

Kickstart to RootFS file builder in docker/podman environment, using AlmaLinux as foundation.

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almalinux/ks2rootfs repository overview

⁠Kickstart to RootFS Builder

This project provides the ability build rootfs file from kickstart input file in a docker/podman container environment. Output rootfs files can be used create base images for different OSs (AlmaLinux, Cent OS, Rocky Linux) etc.

⁠Building local

Two different variants of the image almalinux/ks2rootfs are avilable.

⁠Building almalinux/ks2rootfs:latest image tag

Use follwing command latest tag image to create rootfs files for docker and WSL images.

docker build -t almalinux/ks2rootfs -f Dockerfile .
⁠Building almalinux/ks2rootfs:livecd-tools image tag

Use follwing command livecd-tools tag image to create SIG/LiveMedia ISO images, check GitHub repo⁠.

docker build -t almalinux/ks2rootfs:livecd-tools -f Dockerfile.livecd .

⁠Using almalinux/ks2rootfs:latest image tag

Use latest tag image to create rootfs files for docker and WSL images.

⁠Using lastet Image tag

Run following command under tests folder. Test script kickstart files are available at kickstarts. NOTE: These scripts test use only. Official docker image kickstart files are avaialble in GitHub docker-images⁠ repository.

Use command below to create default docker files

docker run --rm --privileged -v "$PWD:/build:z" \
    -e KICKSTART_FILE=kickstarts/almalinux-8-default.x86_64.ks \
    -e IMAGE_NAME=almalinux-8-docker-default.x86_64.tar.gz \
    -e OUTPUT_DIR=default \
    -e BUILD_TYPE=default \
    almalinux/ks2rootfs

Use command below to create base docker files

docker run --rm --privileged -v "$PWD:/build:z" \
    -e KICKSTART_FILE=kickstarts/almalinux-8-base.x86_64.ks \
    -e IMAGE_NAME=almalinux-8-docker-base.x86_64.tar.gz \
    -e OUTPUT_DIR=base \
    -e BUILD_TYPE=base \
    almalinux/ks2rootfs

Use command below to create init docker files

docker run --rm --privileged -v "$PWD:/build:z" \
    -e KICKSTART_FILE=kickstarts/almalinux-8-init.x86_64.ks \
    -e IMAGE_NAME=almalinux-8-docker-init.x86_64.tar.gz \
    -e OUTPUT_DIR=init \
    -e BUILD_TYPE=init \
    almalinux/ks2rootfs
⁠Environment variables

Container startup script ks2rootfs supports multiple environment varible to customize the output. The environment variables and their use as follows

ENVIRONMENT VARIABLES:
======================

KICKSTART_FILE  : Reuired - Input kickstart source file (.ks)
IMAGE_NAME     : Required - Rootfs output file name 

BUILD_WORK_DIR   : Optional - Working dir for kickstart source and image destination. Defaults to current directory.
OUTPUT_DIR     : Optional - Output directory name in working directory. Ddefault value is 'result'.
FLAG_OUTOUT_IN_PWD : Optional - Set this flag to true to write output files in current working directory. Default value is 'false'. When value is set to 'true', any value passed to 'OUTPUT_DIR' will be ignored.
FLAG_WRITE_META    : Optional - Generate meta data about the kickstart build system. Default value is 'true'.
FLAG_RETAIN_LOG    : Optional - When enabled, generated logs files retained under 'logs' output directory. Default value is 'false'.
BUILD_COMPTYPE     : Optional - Build compression type default 'xz', 'gzip' and 'lzma'.
BUILD_TYPE         : Optional - Build type 'base', 'default', 'init', 'micro', 'minimal' and 'wsl', Default value is 'default'.

USAGE:
    ks2rootfs KICKSTART_FILE_NAME ROOTFS_FILE_NAME

EXAMPLES:
    ks2rootfs os-minimal.ks os-minimal.tar.gz

⁠Using almalinux/ks2rootfs:livecd-tools Image

livecd-tools tag image to create SIG/LiveMedia ISO images, check GitHub repo⁠ for more detailed use.

Tag summary

Content type

Image

Digest

Size

107 MB

Last updated

almost 5 years ago

docker pull almalinux/ks2rootfs