From 9e650c6ad3b3713e247fd4587e1a6ab903400a86 Mon Sep 17 00:00:00 2001
From: Peleke Sengstacke <peleke.s@protonmail.com>
Date: Thu, 6 Nov 2025 18:23:28 -0500
Subject: [PATCH] perf(ci): implement Docker Buildx with registry layer caching
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- Use docker/setup-buildx-action for advanced caching
- Use docker/build-push-action for layer cache support
- Cache layers in Artifact Registry (buildcache ref)
- mode=max exports all layers for maximum cache reuse

Expected: 60-80% faster builds on subsequent runs

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 .github/workflows/staging-deploy.yml | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/staging-deploy.yml b/.github/workflows/staging-deploy.yml
index 9fd81233..e01d74fe 100644
--- a/.github/workflows/staging-deploy.yml
+++ b/.github/workflows/staging-deploy.yml
@@ -33,6 +33,9 @@ jobs:
       - name: Set up Cloud SDK
         uses: google-github-actions/setup-gcloud@v2
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Configure Docker for Artifact Registry
         run: gcloud auth configure-docker ${{ env.REGION }}-docker.pkg.dev
 
@@ -43,16 +46,18 @@ jobs:
           echo "timestamp=$(date +%Y%m%d-%H%M%S)" >> $GITHUB_OUTPUT
 
       - name: Build and push container
-        run: |
-          docker build \
-            --build-arg NEXT_PUBLIC_SUPABASE_URL="${{ secrets.NEXT_PUBLIC_SUPABASE_URL }}" \
-            --build-arg NEXT_PUBLIC_SUPABASE_ANON_KEY="${{ secrets.NEXT_PUBLIC_SUPABASE_ANON_KEY }}" \
-            -t ${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:staging-${{ steps.vars.outputs.short_sha }} \
-            -t ${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:staging-latest \
-            .
-
-          docker push ${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:staging-${{ steps.vars.outputs.short_sha }}
-          docker push ${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:staging-latest
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:staging-${{ steps.vars.outputs.short_sha }}
+            ${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:staging-latest
+          build-args: |
+            NEXT_PUBLIC_SUPABASE_URL=${{ secrets.NEXT_PUBLIC_SUPABASE_URL }}
+            NEXT_PUBLIC_SUPABASE_ANON_KEY=${{ secrets.NEXT_PUBLIC_SUPABASE_ANON_KEY }}
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:buildcache
+          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.PROJECT_ID }}/interlinear/app:buildcache,mode=max
 
       - name: Deploy to Cloud Run
         run: |