build: Publish windmill-amd64 binary for each release (#2417)

* Publish binary on release

* Add step for ee binary

.github/workflows/docker-image.yml

@@ -14,7 +14,7 @@ concurrency:
   cancel-in-progress: true
 
 permissions:
-  contents: read
+  contents: write
   id-token: write
   packages: write
 
@@ -165,6 +165,56 @@ jobs:
           bucket: windmill-frontend
           bucket-region: us-east-1
 
+  attach_binary_to_release:
+    needs: [build]
+    runs-on: ubuntu-latest
+    if: ${{ startsWith(github.ref, 'refs/tags/') }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: shrink/actions-docker-extract@v2
+        id: extract
+        with:
+          image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          path: "/usr/src/app/windmill"
+
+      - name: Rename binary with corresponding architecture
+        run: |
+          # The GH worker downloaded the image corresponding to its own architecture
+          arch="$(dpkg --print-architecture)"; arch="${arch##*-}";
+          cd ${{ steps.extract.outputs.destination }}/
+          mv windmill "windmill-${arch}"
+
+      - name: Attach binary to release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            ${{ steps.extract.outputs.destination }}/*
+
+  attach_ee_binary_to_release:
+    needs: [build-ee]
+    runs-on: ubuntu-latest
+    if: ${{ startsWith(github.ref, 'refs/tags/') }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: shrink/actions-docker-extract@v2
+        id: extract
+        with:
+          image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-ee:latest
+          path: "/usr/src/app/windmill"
+
+      - name: Rename binary with corresponding architecture
+        run: |
+          # The GH worker downloaded the image corresponding to its own architecture
+          arch="$(dpkg --print-architecture)"; arch="${arch##*-}";
+          cd ${{ steps.extract.outputs.destination }}/
+          mv windmill "windmill-ee-${arch}"
+
+      - name: Attach binary to release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            ${{ steps.extract.outputs.destination }}/*
+
   publish_ecr:
     needs: [build_ee]
     runs-on: ubuntu-latest