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Command: operator snapshot save

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 ACLs are enabled, a management token must be supplied in order to perform snapshot operations.

To create a snapshot from the leader server and save it to "backup.snap":

$ nomad operator snapshot save backup.snap

To create a potentially stale snapshot from any available server (useful if no leader is available):

$ nomad operator snapshot save -stale backup.snap

This command only saves a Raft snapshot. If you use this snapshot to recover a cluster, you will also need to restore the keyring onto at least one server.

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.
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