xds: Avoid default bootstrap when global override in XdsNameResolver #12457
+19
−16
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This fixes a regression with an internal API from 27d1508 where overridding the global bootstrap didn't impact parsing the default bootstrap. So if no global bootstrap was available XdsNameResolver would fail to start even though an override was in place in SharedXdsClientPoolProvider. Instead of dealing with the override in SharedXdsClientPoolProvider, do it in GrpcBootstrapperImpl so XdsNameResolver is ignorant of the source of the default bootstrap. We want all of this to go away in favor of XDS_CLIENT_SUPPLIER injection, but there needs to be some overlap for migration. cl/826085025
ejona86
added
the
TODO:backport
kannanjgithub
approved these changes
Oct 31, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.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 fixes a regression with an internal API from 27d1508 where overridding the global bootstrap didn't impact parsing the default bootstrap. So if no global bootstrap was available XdsNameResolver would fail to start even though an override was in place in SharedXdsClientPoolProvider. Instead of dealing with the override in SharedXdsClientPoolProvider, do it in GrpcBootstrapperImpl so XdsNameResolver is ignorant of the source of the default bootstrap.
We want all of this to go away in favor of XDS_CLIENT_SUPPLIER injection, but there needs to be some overlap for migration.
cl/826085025
CC @danielzhaotongliu