Add feature flag to Advanced Traffic control with Canary Ingress
We need to place all the code that implements Advanced Traffic control with Canary Ingress under a dedicated feature flag feature_flag_name
to be able to deprecate them safely (without removing them from the code)
Notes
- Other parts of Canary deployments, that rely on GitLab CI/CD only would remain supported.
Edited by Nicolò Maria Mezzopera