Use the following procedure to rotate all cluster nodes, one server at a time:
- Add a new servers to the cluster with a configuration that joins them to the existing cluter.
- Stop dkron service in one of the old servers, if it was the leader allow a new leader to be ellected, note that it is better to remove the current leader at the end, to ensure a leader is elected between the new nodes.
dkron raft list-peersto list current cluster nodes
dkron raft remove-peerto forcefully remove the old server
- Repeat steps util all old cluster nodes has been rotated