From a640e40a5d5a2cc99df2c40e735e5c946a9299e2 Mon Sep 17 00:00:00 2001
From: openhands <openhands@all-hands.dev>
Date: Mon, 7 Sep 2026 16:18:04 +0200
Subject: [PATCH] fix(docker): clear build cache on every build to stop
 unbounded disk growth

---
 scripts/ci-deploy.sh     | 5 +++++
 scripts/docker-update.sh | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/scripts/ci-deploy.sh b/scripts/ci-deploy.sh
index 9830330e..0e1cb157 100644
--- a/scripts/ci-deploy.sh
+++ b/scripts/ci-deploy.sh
@@ -74,6 +74,11 @@ pnpm install --frozen-lockfile
 pnpm exec playwright install chromium
 
 echo "Building $image"
+# Throw away the previous build cache before each build so disk usage doesn't
+# grow unbounded across deployments. The current release image (`epicnext-cms`)
+# is still reused as a base layer via `--cache-from`; only the accumulated
+# BuildKit intermediate cache is discarded.
+docker builder prune -af --filter "until=1h" --keep-storage=0 2>/dev/null || true
 DOCKER_BUILDKIT=1 docker build --network=host --progress=plain --cache-from epicnext-cms:latest \
   --build-arg NEXT_DEPLOYMENT_ID="$sha" -t "$image" .
 check_current
diff --git a/scripts/docker-update.sh b/scripts/docker-update.sh
index 9f714f0c..88252241 100755
--- a/scripts/docker-update.sh
+++ b/scripts/docker-update.sh
@@ -79,6 +79,9 @@ fi
 log "Node major gate OK (major=${float_major:-?})"
 
 # --- 4. Rebuild the image ---
+# Reset the BuildKit cache first so the build doesn't accumulate unbounded
+# layers on disk across daily rebuilds.
+docker builder prune -af --filter "until=1h" --keep-storage=0 2>>"$LOG_FILE" || true
 docker compose build >>"$LOG_FILE" 2>&1 || die "docker compose build failed" 2
 log "docker compose build OK"