Is install_uuid persistent during installations and upgrades ?

Solution Verified - Updated -

Environment

  • Red Hat Ansible Automation Platform 2.X

Issue

  • Would like to know install_uuid field in api/v2/ping in AAP API. Is that field persistent forever, i.e. does not change after platform upgrade?

Resolution

  • INSTALL_UUID - Unique cluster identifier (but it's the same for all the nodes of the specific cluster)

  • SYSTEM_UUID - Unique cluster node identifier.

  • TOWER_URL_BASE - URL for signing into Tower/Controller UI

For e.g. for 5 node cluster, each will have unique "SYSTEM_UUID" and the same "INSTALL_UUID"

So if one performs the upgrade by spawning a new cluster and killing the old one that means install_uuid is different, since it's a new cluster. Otherwise doing inplace upgrade doesn't change it.

Root Cause

  • Sometimes a change in the 'install_uuid' field breaks the integration between AAP and other systems.

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