Cluster page doesn't allow to specify the environment pattern
When having multiple clusters, they are intended to be associated to specific environments using patterns.
The current implementation doesn't include a way to define which pattern is used (it is always
* like in CE version), and also there is no check on the duplicates that should be forbidden also at creation level.
At the moment, the feature is completely broken because:
- you cannot specify a pattern
- yon cannot edit clusters (error on save because environment pattern conflicts)
- deployments cannot be done on different clusters