Submit docker image at once

.github/workflows/builddockerimage.yml

@@ -15,13 +15,6 @@ jobs:
     strategy:
       matrix:
         arch: ["arm64", "amd64"]
-    permissions:
-      contents: read
-      packages: write
-      # This is used to complete the identity challenge
-      # with sigstore/fulcio when running outside of PRs.
-      id-token: write
-
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -35,6 +28,30 @@ jobs:
           GOOS: linux 
           GOARCH: ${{ matrix.arch }}
         run: go build cmd/service/main.go
+      - uses: actions/upload-artifact@v4
+        with:
+          # Name of the artifact to upload.
+          # Optional. Default is 'artifact'
+          name: binary-${{ matrix.arch }}
+
+          # A file, directory or wildcard pattern that describes what to upload
+          # Required.
+          path: main
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: binary-amd64
+          path: amd64
+      - uses: actions/download-artifact@v4
+        with:
+          name: binary-arm64
+          path: arm64
       - name: Install cosign
         if: github.event_name != 'pull_request'
         uses: sigstore/cosign-installer@v3

Dockerfile

@@ -3,6 +3,6 @@ FROM --platform=$TARGETOS/$TARGETARCH alpine
 RUN apk --no-cache add ca-certificates
 
 WORKDIR /root/
-COPY main .
+COPY $TARGETARCH/main .
 
 CMD ["/root/main"]