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Common build helpers for sclorg containers

This repository is aimed to be added as git submodule into particular containers' source repositories. By default, the path to submodule should be named 'common'.

Usage

This section explains the usage of the shared scripts in this repository when it is used as a submodule in a container source repository.

Once you have the repository set as a submodule include common.mk into your root Makefile in order to access the default rules used to call shared scripts.

Default rules:

make or make build This rule will build an image without tagging it with any tags after it is built. If the builder is podman, then the image would also be squashed by default during the build. make build will also expect a README.md so that it can transform it into a man page that gets added to the image so make sure it is available and that you have the go-md2man tool installed on your host.

make tag Use this rule if you want to tag an image after it is built. It will be tagged with two tags - name:latest and name:version. Depends on build

make test or make check This rule will run the testsuite scripts contained in the container source repositories. It expects the test to be available at $gitroot/$version/test/run Depends on tag as some tests might need to have the images tagged (s2i).

make test-openshift Similar to make test but runs testsuite for Openshift 3, expected to be found at $gitroot/$version/test/run-openshift

make test-openshift-4 Similar to make test but runs testsuite for Openshift 4, expected to be found at $gitroot/$version/test/run-openshift-remote-cluster

make betka Runs script betka.sh that generates sources for the dist-git repo. Only Fedora, RHEL7 and RHEL8 are supported. For source generation into Fedora or RHEL dist-git repositories, some parameters are mandatory. DOCKER_IMAGE parameter for Fedora case is quay.io/rhscl/cwt-generator, for RHEL world please ask [email protected], [email protected], or [email protected].

E.g. command for the source generation into Fedora dist-repo https://src.fedoraproject.org/container/nodejs into main branch is: make betka TARGET=fedora VERSIONS=12

The sources are not generated directly into dist-git repository, but into created results directory.

make clean Runs scripts that clean-up the working dir. Depends on the clean-images rule by default and additional clean rules can be provided through the clean-hook variable.

make clean-images Best-effort to remove the last set of images that have been built using the scripts.

make shellcheck Check the shell syntax of the files specified by $SHELLCHECK_FILES variable. See SHELLCHECK_FILES variable description below for more info (default is .). The files matching this specification are then filtered, to not show results twice for symlinks. Only files with a suffix .sh or shell shebang are scanned with the shellcheck utility. See run-shellcheck.sh in this repo for more detailed info. Once the shell syntax issues are fixed, CI that runs make shellcheck for each PR can be turned on by putting .travis.yml file into the root of the image's repository. .travis.yml for its content.

There are additional variables that you can use that the default rules are prepared to work with:

VERSIONS Names of the directories in which the Dockerfiles are contained. Needs to be defined in your Dockerfile for the scripts to know which versions to build.

OS OS version you want to build the images for. Currently the scripts are able to build for centos (default), centos6, c8s, c9s, rhel7, rhel8, rhel9, and fedora.

SKIP_SQUASH When set to 1 the build script will skip the squash phase of the build.

CUSTOM_REPO Set this variable to the path to your local .repo files you want to have available inside the image while building. Useful for building rhel-based images on an unsubscribed box. Be aware that you cannot write to any .repo files used this way inside the image as they will be mounted into the image as read-only.

DOCKER_BUILD_CONTEXT Use this variable in case you want to have a different context for your builds. By default the context of the build is the versioned directory the Dockerfiles are contained in.

SHELLCHECK_FILES One or more files or directories to be scanned by the shellcheck, default is ., which means a whole repository directory. If a directory is provided then all of its content is scanned as well.

CT_OCP4_TEST Set to true if you want to test container in OpenShift 4 environment.

CVP Set to true if you want to test container in Container Validation Pipeline environment.

clean-hook Append Makefile rules to this variable to make sure additional cleaning actions are run when make clean is called.

Files affecting behaviour

The directory with Dockerfiles can optionally include some specific files that affect how scripts in this repo work:

.exclude-<OS> If this file exists, the tooling will not run the build and tests for the specific Dockerfile. For example, if .exclude-rhel7 file exists, the Dockerfile.rhel7 will not be expected in the same directory, build and tests will be skipped. Content of the file is not important at this point.

.devel-repo-<OS> This file is useful if we need to work with RPMs that are not available publically yet. Content of the file is not important at this point. If such a file exists in the repository, then the building scripts will take a look at a correspondent variable, e.g. DEVEL_REPO_rhel8, and will use the repository file defined by that variable. That means that definition of the DEVEL_REPO_rhel8 variable is a responsibility of the test/CI environment.

.build-args-<OS> Some images require some specific build options, let them be set in a file specific for a Dockerfile. This is useful for example for setting capabilities for micro images, that install RPMs into an alternative directory and podman versions of 4.4.0+ do not set such capabilities by default.

Regression tests

make check Runs the tests of few images that use this set of scripts. If the tests of those images pass, this repo is considered to be working.

make shellcheck Check the shell syntax of all *.sh files tracked by the git in this repository.

Dependencies for testsuite:

/usr/bin/docker (either docker or podman + podman-docker)
git
go-md2man
make
source-to-image
shellcheck

	local image_name=${1}
	local app=${2}
	local context_dir=${3}
	local check_command=${4}
	local oc_args=${5:-}
	local image_name_no_namespace=${image_name##*/}
	local service_name="${image_name_no_namespace}-testing"
	local image_tagged="${image_name_no_namespace}:${VERSION}"
	local namespace

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Common build helpers for sclorg containers

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