Manually trigger creation of docker container from release

.github/workflows/release-docker.yml

@@ -0,0 +1,71 @@
+name: "Release docker images from release"
+
+on:
+  workflow_dispatch:
+    inputs:
+      realease_tag:
+        description: 'The release tag to build containers for (preview or x.y.z)'
+        required: true
+
+
+jobs:
+  build_docker_image:
+    needs: build_binaries
+    name: Build docker images
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Checkout tagged commit
+        uses: actions/checkout@v2.4.0
+      # TODO: checkout the tag and not master
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up docker buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login into github registry
+        uses: docker/login-action@v1.10.0
+        with:
+          registry: ghcr.io
+          username:  ${{ github.repository }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and publish docker images
+        run: |
+          gh release download ${{ github.event.inputs.realease_tag }} -p '*Linux_x86_64*' -p '*aarch64*' -p '*armv7*'
+
+          # We need to extract into sub folders to so that our dockerimage can fine the binaries.
+          #
+          # By providing `platform` to `docker buildx` the variable `TARGETPLATFORM` will be available
+          # when building the image. This variable is either
+          # `linux/amd64/`, `linux/arm64/` or `linux/arm/v7`. Hence we need to extract into subfolders.
+
+          7z x maker_${{ github.event.inputs.realease_tag }}_Linux_aarch64.tar -olinux/arm64/
+          7z x taker_${{ github.event.inputs.realease_tag }}_Linux_aarch64.tar -olinux/arm64/
+
+          7z x maker_${{ github.event.inputs.realease_tag }}_Linux_x86_64.tar -olinux/amd64/
+          7z x taker_${{ github.event.inputs.realease_tag }}_Linux_x86_64.tar -olinux/amd64/
+
+          7z x maker_${{ github.event.inputs.realease_tag }}_Linux_armv7.tar -olinux/arm/v7
+          7z x taker_${{ github.event.inputs.realease_tag }}_Linux_armv7.tar -olinux/arm/v7
+
+          docker buildx build \
+              --push \
+              --platform linux/amd64,linux/arm64,linux/arm/v7 \
+              --label "org.opencontainers.image.source https://github.com/${{ github.repository }}" \
+              --tag ghcr.io/${{ github.repository }}/maker:${{ github.event.inputs.realease_tag }} \
+              --build-arg BINARY_PATH=maker \
+              .
+
+          docker buildx build \
+              --push \
+              --platform linux/amd64,linux/arm64,linux/arm/v7 \
+              --label "org.opencontainers.image.source https://github.com/${{ github.repository }}" \
+              --tag ghcr.io/${{ github.repository }}/taker:${{ github.event.inputs.realease_tag }} \
+              --build-arg BINARY_PATH=taker \
+              .
+
+
+