Remove blackhole route from alert inhibitions config#174
Merged
Conversation
Convert AlertmanagerConfig to VMAlertmanagerConfig and remove the unnecessary route and receivers fields. The VM operator (v0.68.3) now supports inhibit-only configs, so the dummy route/receiver that was required for CRD validation is no longer needed. The previous default receiver was contributing a blackhole-style route to the merged alertmanager config, which could interfere with alert delivery.
The route and receivers fields are not required by the AlertmanagerConfig CRD. The dummy default receiver was contributing a blackhole-style route to the merged alertmanager config, interfering with alert delivery.
zachsmith1
approved these changes
Mar 30, 2026
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
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Summary
Remove the unnecessary
routeandreceiversfields from the AlertmanagerConfig. These fields are not required by the CRD, and the dummydefaultreceiver was contributing a blackhole-style route to the merged alertmanager config, which interfered with alert delivery.All inhibit rules are unchanged.
Test plan
activity-system-activity-alert-inhibitions-defaultreceiverRelates to datum-cloud/infra#277