HasRoleSelector returns a label selector that selects all Pods for a MySQLCluster that have been labeled as having a role.

NewClusterLabelerController creates a new ClusterLabelerController.

NonPrimarySelector returns a label selector that selects all Pods excluding primaries of a MySQLCluster.

PrimarySelector returns a label selector that selects only primaries of a MySQLCluster's Pods.

SecondarySelector returns a label selector that selects only secondaries of a MySQLCluster's Pods.

ClusterLabelerController adds annotations about the InnoDB cluster state to the MySQLCluster's Pods.