Feature/custom repo with port

[candidson]

Description

This solves the following issue gaia-app#729, allowing to use a format such as "my-custom-repository:5000/myterraform/myimage:latest" as custom terraform image. Additionally, this allows optionally install the curl package on the custom image, making it possible to use root-less customer images (such as in openshift per example).

Checklist for the pull request author

• Tests added for this feature
• Commit messages follow conventions (see CONTRIBUTING.md)
• Commits are combined ( 1 commit / type and scope )
• Documentation created / updated (if necessary)
• No new sonarqube issues added
• CI pipeline is OK
• Pull request is fast-forward to the main branch
• The last commit of this merge request :
  • updates the pom.xml to a new minor or major version
  • updates the CHANGELOG.md

Checklist for the project maintainer

• Review the code, and add a Review Approval if everything is ok
• This pull request will be merged in merge-commit mode
  • (in github or with the CLI, see CONTRIBUTING.md)

After the merge

• Put the tag on the merged commit
  • (in github or with the CLI, see CONTRIBUTING.md)
• Follow the pipeline for the tag, which should build & release the package (maven or docker)

Issues / Links

• Documentation PR : (eg: 📝 : add configuration for the runner gaia-app/docs#1)

(Please add issues resolution information when needed)