From 812ac6b6931ca1de42a738ef2d4ff51577d9b74e Mon Sep 17 00:00:00 2001
From: Michael Kriese <michael.kriese@mend.io>
Date: Thu, 8 Oct 2026 16:27:55 +0200
Subject: [PATCH] ci: clear the build cache before retrying a bake

Co-Authored-By: Claude Opus 5.5 <michael.kriese+claude-code@mend.io>
---
 .github/actions/bake/action.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/actions/bake/action.yml b/.github/actions/bake/action.yml
index eb65cfd01a..0ffc482d01 100644
--- a/.github/actions/bake/action.yml
+++ b/.github/actions/bake/action.yml
@@ -34,5 +34,8 @@ runs:
         retry_wait_seconds: 60
         polling_interval_seconds: 5
         command: docker buildx bake --set settings.secrets=type=env,id=GITHUB_TOKEN ${{ inputs.args }}
+        # an aborted build can leave a broken snapshot in the builder cache, which
+        # fails every retry with "failed to commit ... snapshot ... not found"
+        on_retry_command: docker buildx prune --force
       env:
         GITHUB_TOKEN: ${{ inputs.token }}