gdabisias

[Core feature] Execution Cluster label creation

2

### Motivation: Why do you think this is important? It is tedious to create Execution Cluster Labels using attrFiles. Current process is outlined [here](https://docs.flyte.org/en/latest/deployment/deployment/multicluster.html#deployment-deployment-multicluster) and when multiple projects and environments...

[BUG] flytescheduler Pod crashloops temporarily

4

### Describe the bug In the flyte-core deployment, the flytescheduler will crashloop a few times right after the deployment, trying to connect to flyte admin, which might not be ready...