feat: Enable unhealthy instance alarm for registration and report#1712
Merged
feat: Enable unhealthy instance alarm for registration and report#1712
Conversation
The unhealthy instance alarm is triggered whenever there have been several healthcheck failures within a single hour, which typically results in the ASG cycling instances and can lead to problems with deployment, scaling or handling traffic spikes.
Contributor
Contributor
jorgeazevedo
approved these changes
Feb 27, 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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
What does this change?
The unhealthy instance alarm is triggered whenever there have been several healthcheck failures within a single hour, which typically results in the ASG cycling instances and can lead to problems with deployment, scaling or handling traffic spikes. See also guardian/cdk#594.
This change enable the alarm on
registrationandreport. The other EC2 app,notification, already has this enabled.How has this change been tested?
CI passing should suffice.
How can we measure success?
Increased observability.