Adds meta step

Author: danschmidt5189

.github/workflows/build.yml

@@ -4,9 +4,6 @@ on:
   push:
   workflow_dispatch:
 
-env:
-  DOCKER_APP_REPOSITORY: ghcr.io/${{ github.repository }}
-
 jobs:
   debug:
     runs-on: ubuntu-latest
@@ -28,9 +25,15 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
+      - name: Determine Docker image tags
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+          tags: type=sha,suffix=-pre-${{ github.run_id }}_${{ github.run_attempt }}
+
       - name: Build and push
         uses: docker/build-push-action@v6
         with:
           push: false
-          tags: |
-            ${DOCKER_APP_REPOSITORY}:run-${github.run_id}_${github.run_attempt}
+          tags: ${{ steps.meta.outputs.tags }}