From c084605e4d6be113d5a902b8f7ffa88e0b1f58c0 Mon Sep 17 00:00:00 2001
From: Hunter <huntcsg@users.noreply.github.com>
Date: Tue, 10 Mar 2026 15:31:03 -0400
Subject: [PATCH] fix: default frontend preview variant to cpu (#9718)
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Frontend previews don't need GPU resources. Default to cpu variant and
only use gpu when the `preview-gpu` label is explicitly added.

The plain `preview` label now deploys a cpu-only ephemeral env.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9718-fix-default-frontend-preview-variant-to-cpu-31f6d73d3650811f878cd5dd5ad3881c)
by [Unito](https://www.unito.io)
---
 .github/workflows/cloud-dispatch-build.yaml | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/cloud-dispatch-build.yaml b/.github/workflows/cloud-dispatch-build.yaml
index a681efa8b0..e72eed3634 100644
--- a/.github/workflows/cloud-dispatch-build.yaml
+++ b/.github/workflows/cloud-dispatch-build.yaml
@@ -55,14 +55,9 @@ jobs:
             REF="${PR_HEAD_SHA}"
             BRANCH="${PR_HEAD_REF}"
 
-            # Derive variant from labels
-            VARIANT="gpu"
-            if [ "${ACTION}" = "labeled" ]; then
-              [ "${LABEL_NAME}" = "preview-cpu" ] && VARIANT="cpu"
-            else
-              # synchronize — check existing labels on the PR
-              echo "${PR_LABELS}" | grep -q '"preview-cpu"' && VARIANT="cpu"
-            fi
+            # Derive variant from all PR labels (default to cpu for frontend-only previews)
+            VARIANT="cpu"
+            echo "${PR_LABELS}" | grep -q '"preview-gpu"' && VARIANT="gpu"
           else
             REF="${GITHUB_SHA}"
             BRANCH="${GITHUB_REF_NAME}"