Implementation - Decouple updates to VirtualServerRoute from VirtualServer resource

[danielnginx]

Definition of Done

Development

• Attach VirtualServerRoute to VirtualServer with label selector
• Maintain backwards compatibility with existing implementation
• Ensure VSR can change which VS it is linking to without changing the original VS
• Ensure existing functionality of VirtualSever and VirtualServerRoute operates as expected
• Unit tests are written to cover functionality delivered in the story.
• Make sure that the unit test passes before creating a pull request.
• Make sure that the test coverage stays optimal.
• Run make lint locally before creating a PR.

Testing

• Automated tests are written as part of the story.
• Run “make lint-python“ from root
• Acceptance criteria are met.
• Stories are demonstrated to the team.
• Product Manager accepts the story as done.
• If a feature requires changes/extensions of the Helm chart, those shall be done as part of the story.

Release Notes & Documentation

• PR is labeled appropriately so they display in GitHub release notes.
• Create/update documentation related to the user story.
• Create/update the example in our codebase when applicable.

[jjngx]

Two examples for VSR and VS selector:

1. One, default namespace

examples/custom-resources/vsr-selector-basic
├── README.md
...

2. Multiple namespaces

examples/custom-resources/vsr-selector-multinamespace
├── README.md
...