GetObjectStatusFromMetas gets StatefulSet status from cur and new meta infos.

LogActionPlan logs action plan.

LogCR writes a CR into the log.

LogOldAndNew writes old and new CHIs into the log.

NewTask creates new context.

ReconcileShardsAndHostsOptionsCtxKey specifies name of the key to be used for ReconcileShardsAndHostsOptions.

ReconcileShardsAndHostsOptions is and options for reconciler.

task represents context of a worker.

ErrorCRUD specifies errors of the CRUD operations.

ReconcileShardsAndHostsOptionsCtxKeyType specifies type for ReconcileShardsAndHostsOptionsCtxKey More details here on why do we need special type https://stackoverflow.com/questions/40891345/fix-should-not-use-basic-type-string-as-key-in-context-withvalue-golint.