feat: Add DynamoDB based locking to prevent race conditions in index.yaml generation #447
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Outdated suggestions cannot be applied.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.
I have set this up so it is sufficiently abstracted that other lock backends could be added in the future.
Fixes #18
Important Note:
Because of where I've placed the locking it prevents breaking the index.yaml but if a lock timeout occurs the chart still gets uploaded just not added to the index.yaml
This means that follow up uploads need to use the
--force
flag or still require ahelm s3 reindex
to solve. I could acquire the lock for the entirety of the push operation which would prevent this but that increases the chance to hit these lock timeouts so wasn't sure which compromise you would prefer.