From e4eb26eafda851fe109f20a83edd70968ea489ea Mon Sep 17 00:00:00 2001
From: Pat Riehecky <riehecky@fnal.gov>
Date: Mon, 2 Feb 2026 10:19:29 -0600
Subject: [PATCH] sha tag has a `sha-` prefix

---
 .github/workflows/build_docker_layers.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/build_docker_layers.yaml b/.github/workflows/build_docker_layers.yaml
index f8855f68..107a44e4 100644
--- a/.github/workflows/build_docker_layers.yaml
+++ b/.github/workflows/build_docker_layers.yaml
@@ -99,7 +99,7 @@ jobs:
         run: |
           if [[ "${{ needs.build-dependencies.result }}" == "success" ]]; then
             # Dependencies image was rebuilt for this commit, so use current short SHA
-            echo "dep_tag=$(git rev-parse --short HEAD)" >> "${GITHUB_OUTPUT}"
+            echo "dep_tag=sha-$(git rev-parse --short HEAD)" >> "${GITHUB_OUTPUT}"
           else
             # Fallback: use 'latest' if no SHA-like tag was found or API call failed
             echo "Warning: Could not determine SHA-based dependency tag, falling back to 'latest'" >&2