Switch to depot for faster ARM builds... at a price. (kixelated#79)

.github/workflows/release.yml

@@ -12,9 +12,8 @@ on:
         tags: ["v*.*.*"]
 
 env:
-    # Use docker.io for Docker Hub if empty
+    # Use the free Github repository
     REGISTRY: ghcr.io
-    # github.repository as <account>/<repo>
     IMAGE_NAME: ${{ github.repository }}
 
 jobs:
@@ -23,9 +22,6 @@ jobs:
         permissions:
             contents: read
             packages: write
-            # This is used to complete the identity challenge
-            # with sigstore/fulcio when running outside of PRs.
-            id-token: write
 
         # Only one release at a time and cancel prior releases
         concurrency:
@@ -36,21 +32,10 @@ jobs:
             - name: Checkout repository
               uses: actions/checkout@v3
 
-            # Install the cosign tool
-            # https://github.com/sigstore/cosign-installer
-            - name: Install cosign
-              uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
-              with:
-                  cosign-release: "v2.1.1"
-
-            # Set up BuildKit Docker container builder to be able to build
-            # multi-platform images and export cache
-            # https://github.com/docker/setup-buildx-action
-            - name: Set up Docker Buildx
-              uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+            # I'm paying for Depot for faster ARM builds.
+            - uses: depot/setup-action@v1
 
             # Login against a Docker registry
-            # https://github.com/docker/login-action
             - name: Log into registry ${{ env.REGISTRY }}
               uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
               with:
@@ -59,37 +44,20 @@ jobs:
                   password: ${{ secrets.GITHUB_TOKEN }}
 
             # Extract metadata (tags, labels) for Docker
-            # https://github.com/docker/metadata-action
             - name: Extract Docker metadata
               id: meta
               uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
               with:
                   images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
-            # Build and push Docker image with Buildx (don't push on PR)
-            # https://github.com/docker/build-push-action
+            # Build and push Docker image with Depot
             - name: Build and push Docker image
               id: build-and-push
-              uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
+              uses: depot/build-push-action@v1
               with:
+                  project: r257ctfqm6
                   context: .
                   push: true
                   tags: ${{ steps.meta.outputs.tags }}
                   labels: ${{ steps.meta.outputs.labels }}
                   platforms: linux/amd64,linux/arm64
-                  cache-from: type=gha
-                  cache-to: type=gha,mode=max
-
-            # Sign the resulting Docker image digest
-            # This will only write to the public Rekor transparency log when the Docker
-            # repository is public to avoid leaking data.  If you would like to publish
-            # transparency data even for private images, pass --force to cosign below.
-            # https://github.com/sigstore/cosign
-            - name: Sign the published Docker image
-              env:
-                  # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
-                  TAGS: ${{ steps.meta.outputs.tags }}
-                  DIGEST: ${{ steps.build-and-push.outputs.digest }}
-              # This step uses the identity token to provision an ephemeral certificate
-              # against the sigstore community Fulcio instance.
-              run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}