Runs multiple instances of Pod


API reference
graph BT; classDef highlight fill:#AFFC41,stroke:#141B41,stroke-width:2px; pod[Pod]--is scaled by-->rc[ReplicationController] class rc highlight
ReplicationController is considered as deprecated and it is recommended to use its successor - ReplicaSet

ReplicationController job is to run a defined number of replicas defines as pod templates. It keeps them alive by launching new ones in case of failure (node crash, pod unresponsive etc.).