»Command: operator keyring

The operator keyring command is used to examine and modify the encryption keys used in Nomad server. It is capable of distributing new encryption keys to the cluster, retiring old encryption keys, and changing the keys used by the cluster to encrypt messages.

Nomad allows multiple encryption keys to be in use simultaneously. This is intended to provide a transition state while the cluster converges. It is the responsibility of the operator to ensure that only the required encryption keys are installed on the cluster. You can review the installed keys using the -list argument, and remove unneeded keys with -remove.

All operations performed by this command can only be run against server nodes and will effect the entire cluster.

All variations of the keyring command return 0 if all nodes reply and there are no errors. If any node fails to reply or reports failure, the exit code will be 1.


nomad operator keyring [options]

Only one actionable argument may be specified per run, including -list, -install, -remove, and -use.

The list of available flags are:

  • -list - List all keys currently in use within the cluster.

  • -install - Install a new encryption key. This will broadcast the new key to all members in the cluster.

  • -use - Change the primary encryption key, which is used to encrypt messages. The key must already be installed before this operation can succeed.

  • -remove - Remove the given key from the cluster. This operation may only be performed on keys which are not currently the primary key.


The output of the nomad operator keyring -list command consolidates information from all the Nomad servers from all datacenters and regions to provide a simple and easy to understand view of the cluster.

$ nomad operator keyring -list
==> Gathering installed encryption keys...