Feature request: Cluster state reports

[mbeacom]

Use case

When executing eksupgrade the pre/post-flight checks are misleading and can cause confusion as to the actual intended outcomes and results of a cluster upgrade.

Due to the many factors that can play into upgrade eligibility, eksupgrade doesn't intend to be a tool to check the compatibility or eligibility of a cluster (in favor of letting other existing tools handle this with better scenario checks, such as: eksup.

The existing pre/post checks should be removed and replaced with relevant checks specific to the upgrade (based on previous understanding the cluster is eligible for such an upgrade).

Solution/User Experience

A cluster upgrade summary will be displayed to inform the user what the current state versus the future state is (and some minimal health information, but nothing intended to replace proper evaluation of a target cluster), minimally:

• cluster: current vs target version
• cluster nodegroups: current vs target versions
• cluster addons: current vs target versions

This maybe expanded in the future to include other comparisons or checks.

Alternative solutions

No response

[github-actions[bot]]

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