FSMSpec returns a function that returns an appropriate phase executor.

NewFSM returns a new state machine for expand operation.

NewPeer returns new cluster peer client.

ChecksPhase runs preflight checks on the joining node.

ElectPhase enables leader election on master node.

EtcdBackupPhase backs up etcd data on a master node.

EtcdPhase adds joining node to cluster's etcd cluster.

PostHookPhase runs post-expand application hook.

PreHookPhase runs pre-expand application hook.

StartAgentPhase starts RPC agent.

StopAgentPhase stops RPC agent.

SystemPhase installs system software on the joining node.

WaitK8sPhase waits for joining node to register with Kubernetes.

WaitPlanetPhase waits for planet to start.

WaitTeleportPhase waits for Teleport on the joining node to join the cluster.

FSMConfig is the expand FSM configuration.

Peer is a client that manages joining the cluster.

PeerConfig defines the configuration for a peer joining the cluster.