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layout page_title sidebar_current description
docs Upgrade Nomad docs-upgrade-upgrading Learn how to upgrade Nomad.

Upgrading Nomad

Both Nomad Clients and Servers are meant to be long-running processes that maintain communication with each other. Nomad Servers maintain quorum with other Servers and Clients are in constant communication with Servers. As such, care should be taken to properly upgrade Nomad to ensure minimal service disruption.

This page documents how to upgrade Nomad when a new version is released.

Standard Upgrades

For upgrades we strive to ensure backwards compatibility. For most upgrades, the process is simple. Assuming the current version of Nomad is A, and version B is released.

  1. On each server, install version B of Nomad.

  2. Shut down version A, restart with version B on one server at a time.

    1. You can run nomad server-members to ensure that all servers are clustered and running the version B.

  3. Once all the servers are upgraded, begin a rollout of clients following the same process.

    1. Done! You are now running the latest Nomad version. You can verify all Clients joined by running nomad node-status and checking all the clients are in a ready state.