grpc-js: Add file watcher certificate provider, and credentials that use them #2802
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Outdated suggestions cannot be applied.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.
This is foundational work for gRFC A29. I put it in the main library because it doesn't use any xDS features. The xDS library will use these APIs to apply its configuration. As part of this change, channel credentials now have internal reference counting APIs, though only the new credentials use them.
Also, while I was trying to get this to work, I noticed and fixed a bug in the pick_first LB policy that caused it to report stale connectivity error messages.