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CloudStack RPM Package builder using Docker

Build Status Docker Pulls license

Docker images for building Apache CloudStack RPM packages.

This will give portable, immutable and reproducable mechanism to build packages for releases. A very good candidate to be used by the Jenkins slaves of the project.

Table of Contents

Supported tags and respective Dockerfile links

Packages installed in container

List of available packages inside the container:

  • rpm-build
  • yum-utils
  • createrepo
  • mkisofs
  • git
  • java (JDK 8 or JDK 11)
  • maven 3.5
  • tomcat
  • python
  • python3
  • locate
  • which
  • nodejs

Build RPM packages

Building RPM packages with the Docker container is rather easy, a few steps are required:

Pull Docker images

Let's assume we want to build packages for CentOS 7 on CentOS 7. We pull that image first:

docker pull khos2ow/cloudstack-rpm-builder:centos7-jdk11

You can replace centos7-jdk11 tag by one of the other tags.

Build local repository

You can clone the CloudStack source code from repository locally on your machine and build packages against that.

Clone Apache CloudStack source code

The first step required is to clone the CloudStack source code somewhere on the filesystem, in /tmp for example:

git clone https://github.com/apache/cloudstack.git /tmp/cloudstack

Now that you have done so we can continue.

Build packages of local repository

Now that we have cloned the CloudStack source code locally, we can build packages by mapping /tmp into /mnt/build in the container. (Note that the container always expects the cloudstack code exists in /mnt/build path.)

docker run \
    -v /tmp:/mnt/build \
    khos2ow/cloudstack-rpm-builder:centos7-jdk11 --distribution centos7 [ARGS...]

Or if your local cloudstack folder has other name, you need to map it to /mnt/build/cloudstack.

docker run \
    -v /tmp/cloudstack-custom-name:/mnt/build/cloudstack \
    khos2ow/cloudstack-rpm-builder:centos7-jdk11 --distribution centos7 [ARGS...]

After the build has finished the .rpm packages are available in /tmp/cloudstack/dist/rpmbuild/RPMS on the host system.

Build remote repository

Also you can build RPM packages of any remote repository without the need to manually clone it first. You only need to specify git remote and git ref you intend to build from.

Build packages of remote repository

Now let's assume we want to build packages of HEAD of master branch from https://github.com/apache/cloudstack repository, we build packages by mapping /tmp into /mnt/build in the container. The container will clone the repository (defined by --git-remote flag) and check out the REF (defined by --git-ref flag) in /mnt/build/cloudstack inside the container and can be accessed from /tmp/cloudstack from the host machine.

docker run \
    -v /tmp:/mnt/build \
    khos2ow/cloudstack-rpm-builder:centos7-jdk11 \
        --git-remote https://github.com/apache/cloudstack.git \
        --git-ref master \
        --distribution centos7 [ARGS...]

Note that any valid git Refspec is acceptable, such as:

  • refs/heads/<BRANCH> to build specified Branch
  • <BRANCH> short version of build specified Branch
  • refs/pull/<NUMBER>/head to build specified GitHub Pull Request
  • refs/merge-requests/<NUMBER>/head to build specified GitLab Merge Request
  • refs/tags/<NAME> to build specified Tag

After the build has finished the .rpm packages are available in /tmp/cloudstack/dist/rpmbuild/RPMS on the host system.

Building tips

Check the following tips when using the builder:

Maven cache

You can provide Maven cache folder (~/.m2) as a volume to the container to make it run faster.

docker run \
    -v /tmp:/mnt/build \
    -v ~/.m2:/root/.m2 \
    khos2ow/cloudstack-rpm-builder:centos7-jdk11 --distribution centos7 [ARGS...]

Adjust host owner permission

Builder container in some cases (e.g. using --use-timestamp flag) may change the file and directory owner shared from host to container (through volume) and it will create dist directory which holds the final artifacts. You can provide USER_ID (mandatory) and/or USER_GID (optional) from host to adjust the owner from whitin the container.

This is specially useful if you want to use this image in Jenkins job and want to clean up the workspace afterward. By adjusting the owner, you won't need to give your Jenkins' user sudo privilege to clean up.

docker run \
    -v /tmp:/mnt/build \
    -e "USER_ID=$(id -u)" \
    -e "USER_GID=$(id -g)" \
    khos2ow/cloudstack-rpm-builder:centos7-jdk11 --distribution centos7 [ARGS...]

Builder help

To see all the available options you can pass to docker run ... command:

docker run \
    -v /tmp:/mnt/build \
    khos2ow/cloudstack-rpm-builder:centos7-jdk11 --help

License

Licensed under Apache License version 2.0. Please see the LICENSE file included in the root directory of the source tree for extended license details.

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