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Command: operator snapshot save

The operator snapshot save command retrieves an atomic, point-in-time snapshot of the state of the Nomad servers, which includes jobs, nodes, allocations, periodic jobs, and ACLs for outage recovery.

If you enabled ACLs, you must supply a management token in order to perform snapshot operations.

Warning

This command only saves a Raft snapshot. This snapshot does not include keyrings. You must back up keyrings separately.

If you use this snapshot to recover a cluster, you also need to restore the keyring onto at least one server. Refer to the Key Management's Restoring the Keyring from Backup section for instructions.

Run the nomad operator snapshot save command to create a snapshot from the leader server.

This example saves the backup to backup.snap.

$ nomad operator snapshot save backup.snap

This example creates a potentially stale snapshot from any available server and saves it to backup.snap. The -stale option is useful if no leader is available.

$ nomad operator snapshot save -stale backup.snap

Usage

nomad operator snapshot save [options] <file>

General Options

  • -address=<addr>: The address of the Nomad server. Overrides the NOMAD_ADDR environment variable if set. Defaults to http://127.0.0.1:4646.

  • -region=<region>: The region of the Nomad server to forward commands to. Overrides the NOMAD_REGION environment variable if set. Defaults to the Agent's local region.

  • -no-color: Disables colored command output. Alternatively, NOMAD_CLI_NO_COLOR may be set. This option takes precedence over -force-color.

  • -force-color: Forces colored command output. This can be used in cases where the usual terminal detection fails. Alternatively, NOMAD_CLI_FORCE_COLOR may be set. This option has no effect if -no-color is also used.

  • -ca-cert=<path>: Path to a PEM encoded CA cert file to use to verify the Nomad server SSL certificate. Overrides the NOMAD_CACERT environment variable if set.

  • -ca-path=<path>: Path to a directory of PEM encoded CA cert files to verify the Nomad server SSL certificate. If both -ca-cert and -ca-path are specified, -ca-cert is used. Overrides the NOMAD_CAPATH environment variable if set.

  • -client-cert=<path>: Path to a PEM encoded client certificate for TLS authentication to the Nomad server. Must also specify -client-key. Overrides the NOMAD_CLIENT_CERT environment variable if set.

  • -client-key=<path>: Path to an unencrypted PEM encoded private key matching the client certificate from -client-cert. Overrides the NOMAD_CLIENT_KEY environment variable if set.

  • -tls-server-name=<value>: The server name to use as the SNI host when connecting via TLS. Overrides the NOMAD_TLS_SERVER_NAME environment variable if set.

  • -tls-skip-verify: Do not verify TLS certificate. This is highly not recommended. Verification will also be skipped if NOMAD_SKIP_VERIFY is set.

  • -token: The SecretID of an ACL token to use to authenticate API requests with. Overrides the NOMAD_TOKEN environment variable if set.

Snapshot Save Options

  • -stale: The stale argument defaults to false, which means the leader provides the result. If the cluster is in an outage state without a leader, you may need to set -stale to true to get the configuration from a non-leader server.