Websocket event support for cleaning up pods only after WS connection is terminated. The support for websocket is right now in the environment itself and router simply acts as a proxy for WS communication!
This feature enables routing more than one request to a pod at the same time. This is the first draft of the work and might involve more optimizations later.
The helm pre-upgrade check failed due to the program tries to
check whether a multierr is a nil pointer instead of errors it contains.
This PR changes the way the program checks multierr in order not to block the upgrade.
Currently, only one CI build can be started at the same time due to we only have only one testing cluster. This PR aims to enable multiple concurrent builds can be triggered to reduce the waiting time for CI builds. The major changes listed below:
1. Each build generate unique images for testing and debugging
2. Check whether the testing cluster is being used by another build.
3. Cache docker image & go mod after build finished
4. Improve dockerfiles for reusing docker build cache
