READMEBUILDAH.md

Using buildah and a pod to build image

The idea is to have pod builder that can be used in kubernetes

build and push the builder

podman build -f Dockerfile.buildah -t quay.io/${USER}/tomcat10-buildah
podman push quay.io/${USER}/tomcat10-buildah

Use the image to build your webapp

podman run --mount type=bind,target=/home/${USER}/.docker/config.json,destination=/auth/config.json quay.io/${USER}/tomcat10-buildah

It supports a bunch of parameters:

webAppWarFileName

That is the name of the war to deploy in webapps, the default is ROOT.war

webAppWarImage

That is the name of docker image that is build and contains the war file, for quay.io/jfclere/test

webAppSourceRepositoryURL

That is the URL of the source repository, for example https://github.com/jfclere/demo-webapp.git

webAppSourceRepositoryRef

That is the branch in the git sources, the default is main

webAppSourceRepositoryContextDir

That is the sub directory in the git sources, the default is empty.

webAppSourceImage

That is the base image to which the webapp is added, the default is: registry.redhat.io/jboss-webserver-5/webserver55-openjdk8-tomcat9-openshift-rhel8

To use any of the parameters use --env var=val

Use a pod to build your image in kubernetes

Ajust JWSbuildah.yaml to what you need and run:

kubectl create -f JWSbuildah.yaml

Note you need a secret the most easy is to adapt your $HOME/.docker/config.json and do something like:

kubectl create secret generic jfc --from-file=.dockerconfigjson=$HOME/.docker/config.json --type=kubernetes.io/dockerconfigjson

The secret is mount in /auth/.dockerconfigjson in the pod by the yaml file.