Updating Tomcat pipeline to v2.0.3 applier conventions

[etsauer]

What does this PR do?

See title.

How should this be tested?

Run the following command:

echo "SOURCE_REPOSITORY_URL=https://github.com/etsauer/container-pipelines.git
SOURCE_REPOSITORY_REF=basic-tomcat-applier-update" >> basic-tomcat/.openshift/builds/params

Then follow steps in basic-tomcat/README.md

Is there a relevant Issue open for this?

resolves #39

Who would you like to review this?

cc: @redhat-cop/containers-approvers @redhat-cop/developer-workflow-mergers

[oybed]

Test failed with missing Jenkinsfile:

OpenShift Build basic-tomcat-build/basic-tomcat-pipeline-1 from https://github.com/pabrahamsson/ticket-monster.git
Checking out git https://github.com/pabrahamsson/ticket-monster.git into /var/lib/jenkins/jobs/basic-tomcat-build/jobs/basic-tomcat-build-basic-tomcat-pipeline/workspace@script to read Jenkinsfile
Cloning the remote Git repository
Cloning repository https://github.com/pabrahamsson/ticket-monster.git
 > git init /var/lib/jenkins/jobs/basic-tomcat-build/jobs/basic-tomcat-build-basic-tomcat-pipeline/workspace@script # timeout=10
Fetching upstream changes from https://github.com/pabrahamsson/ticket-monster.git
 > git --version # timeout=10
 > git fetch --tags --progress https://github.com/pabrahamsson/ticket-monster.git +refs/heads/*:refs/remotes/origin/*
 > git config remote.origin.url https://github.com/pabrahamsson/ticket-monster.git # timeout=10
 > git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
 > git config remote.origin.url https://github.com/pabrahamsson/ticket-monster.git # timeout=10
Fetching upstream changes from https://github.com/pabrahamsson/ticket-monster.git
 > git fetch --tags --progress https://github.com/pabrahamsson/ticket-monster.git +refs/heads/*:refs/remotes/origin/*
 > git rev-parse origin/build^{commit} # timeout=10
Checking out Revision aa5ede1c06d913afca54a864830024e37a17933f (origin/build)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f aa5ede1c06d913afca54a864830024e37a17933f
Commit message: "Support build namespace"
First time build. Skipping changelog.
ERROR: /var/lib/jenkins/jobs/basic-tomcat-build/jobs/basic-tomcat-build-basic-tomcat-pipeline/workspace@script/Jenkinsfile not found
Finished: FAILURE

[etsauer]

@oybed addressed your comments. Note the added step in the PR comment above when testing.

[oybed]

LGTM - will write an issue to support

labels:
  app: ...