Add script to generate diffs between a cluster and the local branch #231
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary
make render-diff
will run a script, that connects to the current cluster inKUBECONFIG
and runs a diff against the current AppCat branch.It leverages Crossplane's crank utility to render the result of a single function reconcile. It then uses
dyff
, a YAML and K8s aware diff tool, to actually show the diff itself.Limitations: it can currently only generate a single reconcile run against the current state. If a function needs multiple reconciles to change the desired state, it won't show up in the diff.
Also, it will only work against a cluster that has at least this version of the AppCat function installed. Otherwise crank won't be able to render it correctly.
Checklist
bug
,enhancement
,documentation
,change
,breaking
,dependency
as they show up in the changelog