Build using GitHub Actions and push to ghcr.io

.github/workflows/docker.yaml

@@ -0,0 +1,34 @@
+name: Docker
+on:
+  push:
+  workflow_dispatch:
+  schedule:
+  - cron: '54 2 2 * *'
+jobs:
+  buildDockerImage:
+    name: Build Docker image
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v1
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Login to Docker Hub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKER_HUB_USERNAME }}
+        password: ${{ secrets.DOCKER_HUB_PASSWORD }}
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        tags: |
+          ghcr.io/wisvch/nginx:latest
+          wisvch/nginx:latest
+        push: ${{ github.ref == 'refs/heads/master' }}