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srbala/ks2rootfs

By srbala

•Updated about 5 years ago

CI/CD Utility to build linux rootfs file from kickstart input file in docker/podman enviroment.

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srbala/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. Project sources are available at https://github.com/srbala/kickstart2rootfs⁠

⁠HOW-TO

⁠Using Image

Following command under tests folder. Run command uses the kickstarts/almalinux-8-default.x86_64.ks file to build.

docker run --rm --privileged -v "$PWD:/build:z" \
    -e BUILD_KICKSTART=kickstarts/almalinux-8-default.x86_64.ks \
    -e BUILD_ROOTFS=almalinux-8-default-docker.x86_64.tar.gz \
    -e BUILD_OUTDIR=default \
    srbala/ks2rootfs:alma

docker run --rm --privileged -v "$PWD:/build:z" \
    -e BUILD_KICKSTART=kickstarts/almalinux-8-minimal.x86_64.ks \
    -e BUILD_ROOTFS=almalinux-8-minimal-docker.x86_64.tar.gz \
    -e BUILD_OUTDIR=minimal \
    srbala/ks2rootfs:alma
⁠Environment variables

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

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

BUILD_KICKSTART  : Reuired - Input kickstart source file (.ks)
BUILD_ROOTFS     : Required - Rootfs output file name 

BUILD_WORK_DIR   : Optional - Working dir for kickstart source and image destination. Defaults to current directory.
BUILD_OUTDIR     : Optional - Output directory name in working directory. Default vaulue is 'result'.
BUILD_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 `BUILD_OUTDIR` will be ignored.
BUILD_FLAG_WRITE_META    : Optional - Generate meta data about the kickstart build system. Default value is true.
BUILD_FLAG_RETAIN_LOG    : Optional - Retain generated output log files under 'logs' output directory. Default value is false.

USAGE:
    ks2rootfs KICKSTART_FILE_NAME ROOTFS_FILE_NAME

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

Tag summary

Content type

Image

Digest

Size

104.6 MB

Last updated

about 5 years ago

docker pull srbala/ks2rootfs