Use caching for Docker on GHA

Author: michaelmior

.github/workflows/docker.yml

@@ -28,6 +28,8 @@ jobs:
       env:
         DISABLE_ASSERTIONS: 1
         GITHUB_TOKEN: ${{ secrets.GH_PERSONAL_TOKEN }}
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
     - name: Log in to Docker Hub
       uses: docker/login-action@v3
       with:
@@ -44,14 +46,16 @@ jobs:
           type=semver,pattern={{major}}.{{minor}}
           # set latest tag for default branch
           type=raw,value=latest,enable={{is_default_branch}}
-    - name: Build and push image
+    - name: Build image
       uses: docker/build-push-action@v6
       with:
         context: ./target/docker/stage
         load: true
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
         push: false
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
     - name: Test image
       env:
         DOCKER_TAG: ${{ steps.meta.outputs.tags }}
@@ -64,6 +68,8 @@ jobs:
         push: true
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
     - name: Attest
       uses: actions/attest-build-provenance@v1
       id: attest