Mock is a tool for building packages. It can build packages for different architectures and different Fedora or RHEL versions than the build host has. Mock creates chroots and builds packages in them. Its only task is to reliably populate a chroot and attempt to build a package in that chroot.
Mock also offers a multi-package tool, mockchain, that can build chains of packages that depend on each other.
Mock is capable of building SRPMs from source configuration management if the mock-scm package is present, then building the SRPM into RPMs. See --scm-enable in the documentation.
If you want to contribute to code, please checkout https://fedorahosted.org/mock/ for more inforations.
Otherwise just run "yum install mock".
All users that are to use mock must be added to the 'mock' group.
usermod -a -G mock [User name] && newgrp mock
Configuration files are in /etc/mock. Mock versions 0.8.0 and higher cache the downloaded rpm packages (via the yum_cache plugin), which speeds up subsequent builds by a considerable margin. Nevertheless, you may wish to change the default configuration to point to local repositories to speed up builds.
By default, builds are done in /var/lib/mock, so be sure you have room. Starting with mock 0.8.0 and higher, you can change this via the 'basedir' config option.
- bind_mount - bind mountpoints inside the chroot
- ccache - compiler cache plugin
- chroot_scan - allows you to retrieve build artifacts from buildroot (e.g. additional logs, coredumps)
- compress_logs - compress logs
- lvm_root - caching buildroots using LVM
- mount - allows you to mount directories into chroot
- package_state - dumps list of available and installed packages
- root_cache - cache buildroots (as tar file).
- selinux - on SELinux enabled box, this plugin will pretend, that SELinux is disabled in build environment.
- tmpfs - mount buildroot directory as tmpfs
- yum_cache - mount /var/cache/yum of your machine to chroot
Using Mock outside your git sandbox
Create your SRPM using 'rpmbuild -bs'. Then change to the directory where your srpm was created.
Now you can start mock with
mock -r <configname> rebuild package-1.2-3.src.rpm
where <configname> is the name of a configuration from /etc/mock/, without the /etc/mock path prefix and without the .cfg suffix.
Note that you can track the progress of mock using the logs stored in
Generate custom config file
Of course you may copy one and edit it manually, however if koji is already using such an config? Then you can use mock-config --help for information how to generate one. E.g.:
koji mock-config --tag f21-build --arch=aarch64 f21