remove unnecessary, build, separate release

.github/workflows/build.yaml

@@ -2,13 +2,11 @@ name: Build
 
 on:
   push:
-    branches: [ dockerbuildtest ]
+    branches: [ master ]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
-
     steps:
       -
         name: checkout
@@ -22,9 +20,6 @@ jobs:
         uses: docker/setup-buildx-action@v1
         with:
           buildkitd-flags: --debug
-      -
-        name: platforms
-        run: echo ${{ steps.buildx.outputs.platforms }}
       -
         name: login to docker hub
         uses: docker/login-action@v1
@@ -33,4 +28,4 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: build
-        run: cd contrib/docker && ./build.sh release
+        run: cd contrib/docker && ./build.sh

.github/workflows/release.yaml

@@ -0,0 +1,31 @@
+name: Release
+
+on:
+  release:
+    types: [ published ]
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: checkout
+        uses: actions/checkout@v2
+      -
+        name: set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: set up buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          buildkitd-flags: --debug
+      -
+        name: login to docker hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: build
+        run: cd contrib/docker && ./build.sh release