Merge pull request #15 from wfg/add-actions

Add initial action

Author: Wyatt Gill

.github/workflows/publish.yml

@@ -0,0 +1,51 @@
+name: Publish
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - v*
+
+env:
+  IMAGE_NAME: openvpn-client
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Get the version
+        id: get_version
+        run: echo ::set-output name=VERSION::${GITHUB_REF#/refs/tags/v}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        id: qemu
+        with:
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        id: buildx
+        with:
+          install: true
+
+      - name: Log in to registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          platforms: ${{ steps.qemu.outputs.platforms }}
+          tags: |
+            ghcr.io/wfg/openvpn-client:${{ steps.get_version.outputs.VERSION }}
+            ghcr.io/wfg/openvpn-client:latest
+          push: true