Add on-tag

.github/workflows/on-tag.yml

@@ -0,0 +1,65 @@
+name: Docker build on tag
+env:
+        DOCKER_CLI_EXPERIMENTAL: enabled
+        TAG_FMT: '^refs/tags/(((.?[0-9]+){3,4}))$'
+
+on:
+        push:
+                tags: [ '*' ]
+
+jobs:
+        build:
+                runs-on: ubuntu-18.04
+                name: Build Neutrino switcher
+                steps:
+                        - name: Setup Environment
+                          run: echo ::set-env name=TAG::${GITHUB_REF/refs\/tags\//}
+
+                        - name: Show set environment variables
+                          run: |
+                                  printf "    TAG: %s\n"  "$TAG"
+
+                        - name: Login to Docker Hub
+                          run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
+
+                        - name: Checkout project
+                          uses: actions/checkout@v2
+
+                        - name: Setup Docker buildx action
+                          uses: crazy-max/ghaction-docker-buildx@v1
+                          id: buildx
+                          with:
+                                  buildx-version: latest
+                                  qemu-version: latest
+
+                        - name: Show available Docker buildx platforms
+                          run: echo ${{ steps.buildx.outputs.platforms }}
+
+                        - name: Cache Docker layers
+                          uses: actions/cache@v2
+                          id: cache
+                          with:
+                            path: /tmp/.buildx-cache
+                            key: ${{ runner.os }}-buildx-${{ github.sha }}
+                            restore-keys: |
+                              ${{ runner.os }}-buildx-
+
+
+                        - name: Run Docker buildx against the tag (specter-desktop)
+                          run: |
+                                  docker buildx build \
+                                  --cache-from "type=local,src=/tmp/.buildx-cache" \
+                                  --cache-to "type=local,dest=/tmp/.buildx-cache" \
+                                  --platform linux/amd64,linux/arm64,linux/arm/v7 \
+                                  --tag ${{ secrets.DOCKER_HUB_USER }}/specter-desktop:$TAG \
+                                  --output "type=registry" .
+
+                        - name: build neutrino-switcher against latest (specter-desktop)
+                          run: |
+                                  docker buildx build \
+                                  --cache-from "type=local,src=/tmp/.buildx-cache" \
+                                  --cache-to "type=local,dest=/tmp/.buildx-cache" \
+                                  --platform linux/amd64,linux/arm64,linux/arm/v7 \
+                                  --tag ${{ secrets.DOCKER_HUB_USER }}/specter-desktop:latest \
+                                  --output "type=registry" .
+