fix: add compute.instances.listReferrers permission to runner role#1
Merged
Conversation
The warm pool code calls ListReferrers to check if an instance is fully detached from its MIG before handing it to an environment. Without this permission the call fails with a 403, causing the runner to skip the readiness check and proceed with a potentially unready instance. Co-authored-by: Ona <no-reply@ona.com>
easyCZ
pushed a commit
that referenced
this pull request
May 21, 2026
fix: add compute.instances.listReferrers permission to runner role
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
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Problem
The warm pool allocator calls
ListReferrerson claimed instances to verify they are fully detached from their MIG before handing them to an environment. The runner service account is missing thecompute.instances.listReferrerspermission, causing a 403 error:The runner proceeds anyway (the check is non-fatal), but the readiness verification is effectively skipped.
Fix
Add
compute.instances.listReferrersto the runner custom IAM role and update the runner role docs (docs/iam.md,docs/detailed_iam_reference.md).Mirror of https://github.com/gitpod-io/gitpod-gcp-terraform/pull/141.