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Command: volume snapshot create

The volume snapshot create command creates a snapshot of an existing Container Storage Interface (CSI) volume. Only CSI plugins that implement the Controller interface support this command.

Usage

nomad volume snapshot create [volume] [snapshot_name]

The volume snapshot create command requires a volume ID or prefix. If there is an exact match based on the provided volume ID or prefix, then the specific volume is snapshotted. Otherwise, a list of matching volumes and information will be displayed. The volume must still be registered with Nomad in order to be snapshotted.

If an optional snapshot name is provided, the argument will be passed to the CSI plugin to be used as the ID of the resulting snapshot. Not all plugins accept this name and it may be ignored.

When ACLs are enabled, this command requires a token with the csi-write-volume capability for the volume's namespace.

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.

  • -namespace=<namespace>: The target namespace for queries and actions bound to a namespace. Overrides the NOMAD_NAMESPACE environment variable if set. If set to '*', job and alloc subcommands query all namespaces authorized to user. Defaults to the "default" namespace.

  • -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 Create Options

  • -parameter: Parameters to pass to the plugin to create a snapshot. Accepts multiple flags in the form -parameter key=value

  • -secret: Secrets to pass to the plugin to create a snapshot. Accepts multiple flags in the form -secret key=value

  • -verbose: Display full information for the resulting snapshot.

Examples

Snapshot a volume:

$ nomad volume snapshot create ebs_prod_db1
Completed snapshot of volume ebs_prod_db1 with snapshot ID snap-12345.

Snapshot a volume with a suggested snapshot ID:

$ nomad volume snapshot create ebs_prod_db1 snap-12345
Completed snapshot of volume ebs_prod_db1 with snapshot ID snap-12345.