This repository provides the build tool to build binary packages in a a safe and reproducible way. It can be used standalone or within the Open Build Service (OBS).

Latest packages for obs-build are available from openSUSE:Tools downloads.

Supported build environments

Unsecure

• chroot
• LXC

Secure but with limited reproducibility

• docker
• nspawn

Secure and with full reproducibility

• KVM
• XEN
• ZVM (S390)

Experimental support

In addition, there is currently experimental support for

• UML
• PVM (PowerPC)
• OpenStack
• Amazon EC2

For hardware emulation there are

• qemu, which runs a QEMU system emulator inside of KVM. This can be considered also secure and reproducible.
• The "emulator" VM can be used to run builds using any other emulator via a wrapper script.
• A QEMU user land emulation is also possible. This would give higher speed, but requires a preparation inside of the base distribution for this mode.

Supported build formats

Major distribution package formats

• spec to rpm, e.g. SUSE, Fedora, RedHat, CentOS, Mandriva
• dsc to deb, e.g. Debian, Ubuntu
• PKGBUILD to pkg, e.g. Arch Linux

Image formats

• Dockerfile—Docker container via docker or podman tooling)
• kiwi appliances—This includes a long list of formats supported by the kiwi tool From live USB stick images, network deployment images, VM images to docker containers
• SUSE Product—SUSE product media builds
• SimpleImage—chroot tar ball based on rpm spec file syntax
• Debian Livebuild
• Preinstallimages—for speeding up builds esp. inside of OBS

Desktop Image formats

• AppImage
• FlatPak
• Snapcraft

Special modes and formats

• debbuild: build debian debs from rpm spec files
• debbootstrap: debian builds using debootstrap as the engine
• mock: rpm spec file build using mock
• collax: debian package variation
• fissile: docker images based on BOSH dev releases
• helm: helm charts
• modulemd: modulemd rpm-md extensions

Use the --help option for more information.