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Create a high availability VSatellite group

You can create a high availability (HA) group of VSatellites to improve service reliability for Enhanced Discovery, CA Connectors, and Machines. An HA group allows operations to start on any healthy VSatellite in the group if the primary VSatellite becomes unavailable.

Prerequisite

  • You must already have a primary VSatellite deployed.
  • All VSatellites in the group must be able to access the same resources needed by the services (such as discovery targets, machine identity endpoints, or certificate authorities).
  • Existing VSatellites are considered primary VSatellites by default if they were deployed before HA support was enabled.
  • This feature currently supports all CA connectors except Microsoft ADCS.

To create a high availability VSatellite group

  1. Go to the VSatellites page.
  2. Click New.
  3. In the Download step, copy the command and install vsatctl on your target Linux host.
  4. Click Continue to proceed to Preflight.
  5. Run the provided command to execute the preflight checks.
  6. Click Continue to go to Deploy.
  7. Select the checkbox I'm creating replicas.
  8. From the Primary VSatellite dropdown, select an existing primary VSatellite.
  9. In Deployments, specify how many replicas you want to deploy. You can enter up to 10.
  10. Copy and run the generated installation command on each target machine to deploy the replica VSatellites.
  11. Optionally, click Test to confirm whether each deployed VSatellite is up and running.
  12. Click Done.

The replica VSatellites will now appear on the VSatellites page with their assigned primary. The system will automatically route new service requests to any healthy VSatellite in the group.