Commits on Apr 15, 2024

1. Use recert for proxy seed reconfiguration …

   # Overview
   
   LCA will now use recert's new proxy feature. This will allow us to
   support environments where the seed proxy is different than the upgraded
   cluster's proxy. It will also allow us to perform a rollout-free seed
   proxy reconfiguration.
   
   Clusters with a proxy can only be upgraded using seeds that have a
   proxy. Clusters without a proxy can only be upgraded using seeds that
   don't have a proxy.
   
   # Notes
   
   Two new fields have been added to `SeedReconfiguration`, `Proxy` and
   `StatusProxy` - see commit diff for an explanation of why we need both
   and how they're determined in every scenario.
   
   Added a new `HasProxy` field to the seed cluster info struct.
   
   Seed images will now contain a `com.openshift.lifecycle-agent.seed_cluster_info`
   OCI label which will contain a JSON serialized seed cluster info struct.
   This label will allow LCA (and maybe IBIO in the future?) to make
   informed decisions about the compatibility of a particular seed image
   with the cluster being upgraded. For example, LCA will refuse to upgrade
   a cluster that has a proxy with a seed that doesn't. This label helps
   LCA knows whether the seed has a proxy or not (through the new
   `HasProxy` field), and block the upgrade appropriately before the image
   even gets pulled.
   
   # install-config
   
   On top of proxy, we're also going to be using recert's new
   install-config option. See comment about the new InstallConfig field in
   the seed reconfiguration struct for more information about why.

   

   omertuc committed Apr 15, 2024
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