Merge pull request mermaid-js#105 from Thiht/master

Create docker-publish.yml

.github/workflows/docker-publish.yml

@@ -0,0 +1,69 @@
+name: Docker
+
+on:
+  push:
+    # Publish `master` as Docker `latest` image.
+    branches:
+      - master
+
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+
+  # Run tests for all PRs to master and develop.
+  pull_request:
+    branches:
+      - master
+      - develop
+
+env:
+  IMAGE_NAME: mermaid-live-editor
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run tests
+        run: |
+          docker build . --file Dockerfile
+
+  push:
+    # Ensure test job passes before pushing image.
+    needs: test
+
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Build image
+        run: docker build . --file Dockerfile --tag $IMAGE_NAME
+
+      - name: Log into registry
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+
+          # Change all uppercase to lowercase
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+
+          # Strip git ref prefix from version
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          # Strip "v" prefix from tag name
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+
+          # Use Docker `latest` tag convention
+          [ "$VERSION" == "master" ] && VERSION=latest
+
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+
+          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
+          docker push $IMAGE_ID:$VERSION

README.md

@@ -19,6 +19,14 @@ Edit, preview and share mermaid charts/diagrams.
 
 You can try out a live version [here](https://mermaid-js.github.io/mermaid-live-editor/).
 
+## Docker
+
+```bash
+docker run --publish 8000:80 ghcr.io/mermaid-js/mermaid-live-editor
+```
+
+Then open http://localhost:8000
+
 ## Setup
 
 [Volta](https://volta.sh) is used for managing node and yarn versions.