Add (jenkins) builder /master & agent information to built image

[clemensutschig]

Is your feature request related to a problem? Please describe.
Today only the Shared lib Version and the raw commit is set as label into the built image (.https://github.com/opendevstack/ods-jenkins-shared-library/blob/master/src/org/ods/component/BuildOpenShiftImageStage.groovy#L150). If one wants to know the exact commit of the build agent image that was uses - one needs to dig based on Image tag in the jenkinsfile etc.

Describe the solution you'd like
Add Image labels for used builder agent - commit etc

[clemensutschig]

oc -n ods get istag jenkins-agent-base:3.0.0 -ojson | jq .image.dockerImageMetadata.Config.Labels

and only take the io.* ones and format into builder-agent.io.* - @michaelsauter thoughts?

[clemensutschig]

ok - better approach - inside the container(s): env | grep OPENSHIFT_BUILD ;)

[clemensutschig]

reopening for 3.x - in case @metmajer you want a backport ...

[clemensutschig]

from the latest CI BUILD:

amazon-ebs: Step 13/13 : LABEL "io.openshift.build.name"="nginx-iq-test-1" "io.openshift.build.namespace"="unitt-cd" "ods.build.source.repo.url"="http://bitbucket.odsbox.lan:7990/scm/unitt/unitt-nginx-iq-test.git" "ods.build.source.repo.commit.sha"="aa3fff6df1d2a49fd78f997c5d87ec22de53aac5" "ods.build.source.repo.commit.msg"="Initial-OpenDevStack-commit" "ods.build.source.repo.commit.author"="ODS System User (undefined)" "ods.build.source.repo.commit.timestamp"="2021-05-28 03:55:32 +0000" "ods.build.source.repo.branch"="master" "ods.build.jenkins.job.url"="https://jenkins-unitt-cd.ocp.odsbox.lan/job/unitt-cd/job/unitt-cd-run-unitt-nginx-iq-test-unitt-master/1/" "ods.build.timestamp"="Fri May 28 03:56:16 UTC 2021" "ods.build.lib.version"="latest" 
"ext.JENKINS_MASTER_OPENSHIFT_BUILD_COMMIT"="fd086797be77c7750789087b26a54a5ec1f39780"
"ext.JENKINS_MASTER_OPENSHIFT_BUILD_NAME"="jenkins-master-1"
"ext.JENKINS_MASTER_OPENSHIFT_BUILD_SOURCE"="http://bitbucket.odsbox.lan:7990/scm/opendevstack/ods-core.git"
"ext.JENKINS_MASTER_OPENSHIFT_BUILD_NAMESPACE"="ods"
"ext.JENKINS_MASTER_OPENSHIFT_BUILD_REFERENCE"="master"
"ext.JENKINS_AGENT_OPENSHIFT_BUILD_COMMIT"="fd086797be77c7750789087b26a54a5ec1f39780"
"ext.JENKINS_AGENT_OPENSHIFT_BUILD_NAME"="jenkins-agent-base-1"
"ext.JENKINS_AGENT_OPENSHIFT_BUILD_SOURCE"="http://bitbucket.odsbox.lan:7990/scm/opendevstack/ods-core.git"
"ext.JENKINS_AGENT_OPENSHIFT_BUILD_NAMESPACE"="ods"
"ext.JENKINS_AGENT_OPENSHIFT_BUILD_REFERENCE"="master"
�[0m

@metmajer @michaelsauter - works :)