davecarlson / centos-mock-docker

An example of using mock on CentOS 7 to build a rpm in a docker container

centos-mock-docker

An example of using Mock - FedoraProject on CentOS 7 to build RPMs. In this example, I rebuild a rpm of highway

Usage

Build the docker container.

docker build -t mock .

Start the container. The --cap-add=SYS_ADMIN option is needed to use mock command. Without this option, mock fails with the error ERROR: Namespace unshare failed.

docker run --cap-add=SYS_ADMIN -it mock

In the container, run the following commands.

su - mockbuild
./bin/build-highway.sh

The build results and logs are created in /var/lib/mock/epel-7-x86_64/result/

[mockbuild@7ea0955ef645 ~]$ ls -l /var/lib/mock/epel-7-x86_64/result/
total 1108
-rw-rw-r-- 1 mockbuild mock  31533 Dec  1 17:24 build.log
-rw-rw-r-- 1 mockbuild mock 314716 Dec  1 17:24 highway-1.1.0-1.el7.centos.src.rpm
-rw-rw-r-- 1 mockbuild mock 131272 Dec  1 17:24 highway-1.1.0-1.el7.centos.x86_64.rpm
-rw-rw-r-- 1 mockbuild mock 451168 Dec  1 17:24 highway-debuginfo-1.1.0-1.el7.centos.x86_64.rpm
-rw-rw-r-- 1 mockbuild mock 189962 Dec  1 17:24 root.log
-rw-rw-r-- 1 mockbuild mock    812 Dec  1 17:24 state.log

NOTE

It is preferrable to keep this container between building multiple RPMs since mock caches yum results. See Using Mock to test package builds - FedoraProject.