AvailableElasticsearchNodes filters a slice of pods for the ones that are ready.

MustNewState like NewState but panics on error.

NewResourcesStateFromAPI reflects the current ResourcesState from the API.

NewState creates a new reconcile state based on the given cluster.

ResourcesState contains information about a deployments resources.

State holds the accumulated state during the reconcile loop including the response and a copy of the Elasticsearch resource from the start of reconciliation, for status updates.