Command: job revert

The job revert command is used to revert a job to a prior version of the job. The available versions to revert to can be found using job history command.

Usage

nomad job revert [options] <job> <version|tag>

The job revert command requires two inputs: the job ID, and the version number or tag of the job to revert to. When you specify a version number, Nomad reverts the job to the exact version number. Alternately, when you specify a custom tag name as a string, Nomad reverts to the version tagged with that name.

When ACLs are enabled, this command requires a token with the submit-job capability for the job's namespace. The list-jobs capability is required to run the command with a job prefix instead of the exact job ID. The read-job capability is required to monitor the resulting evaluation when -detach is not used.

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 '*', subcommands which support this functionality 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.

Revert Options

-detach: Return immediately instead of monitoring. A new evaluation ID will be output, which can be used to examine the evaluation using the eval status command.
-verbose: Show full information.

Examples

Revert to an older version of a job:

$ nomad job history -p example
Version     = 1
Stable      = false
Submit Date = 07/25/17 21:27:30 UTC
Diff        =
+/- Job: "example"
+/- Task Group: "cache"
  +/- Task: "redis"
    +/- Config {
      +/- image:           "redis:7" => "redis:4.0"
          port_map[0][db]: "6379"
        }

Version     = 0
Stable      = false
Submit Date = 07/25/17 21:27:18 UTC

$ nomad job revert example 0
==> Monitoring evaluation "faff5c30"
    Evaluation triggered by job "example"
    Evaluation within deployment: "e17c8592"
    Allocation "4ed0ca3b" modified: node "e8a2243d", group "cache"
    Evaluation status changed: "pending" -> "complete"
==> Evaluation "faff5c30" finished with status "complete"

$ nomad job history -p example
Version     = 2
Stable      = true
Submit Date = 07/25/17 21:27:43 UTC
Diff        =
+/- Job: "example"
+/- Task Group: "cache"
  +/- Task: "redis"
    +/- Config {
      +/- image:           "redis:4.0" => "redis:7"
          port_map[0][db]: "6379"
        }

Version     = 1
Stable      = false
Submit Date = 07/25/17 21:27:30 UTC
Diff        =
+/- Job: "example"
+/- Task Group: "cache"
  +/- Task: "redis"
    +/- Config {
      +/- image:           "redis:7" => "redis:4.0"
          port_map[0][db]: "6379"
        }

Version     = 0
Stable      = false
Submit Date = 07/25/17 21:27:18 UTC