Add docker and CI configuration

.dockerignore

@@ -0,0 +1,7 @@
+node_modules
+.github
+demo
+example
+middleware
+dist
+typings

.github/workflows/ci.yml

@@ -80,3 +80,27 @@ jobs:
 
       - name: Build release
         run: npm run build:release
+
+  buildAndPushDockerImage:
+    name: Build and push Docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          tags: dhcenter/graphql-voyager:latest
+          push: ${{ github.ref == 'refs/heads/master' }}
+          file: docker/Dockerfile

README.md

@@ -158,6 +158,7 @@ Middleware supports the following properties:
 - `displayOptions` [`object`] - same as [here](#properties)
 - `headersJS` [`string`, default `"{}"`] - object of headers serialized in string to be used on endpoint url<BR>
   **Note:** You can also use any JS expression which results in an object with header names as keys and strings as values e.g. `{ Authorization: localStorage['Meteor.loginToken'] }`
+- `credentials` [`string`, default `"same-origin"`] - sets `credentials` property for introspection query
 
 ### Express
 

docker/Dockerfile

@@ -0,0 +1,16 @@
+FROM node:14.15.4-alpine3.11
+
+WORKDIR /usr/src/app
+
+COPY package.json package-lock.json ./
+
+RUN npm install
+
+COPY . .
+
+RUN npm run build:release
+
+RUN cd docker && npm install
+
+CMD ["node", "docker/server.js"]
+

docker/README.md

@@ -0,0 +1,21 @@
+# Running as Docker container
+
+You can use `graphql-voyager` without any changes in your code, by running it as a Docker container.
+
+1. Create `docker-compose.yml` file
+2. Paste following content in it:
+
+```yaml
+version: '3.2'
+services:
+  voyager:
+    image: dhcenter/graphql-voyager:latest
+    ports:
+      - 3400:3400
+    restart: always
+    environment:
+      GRAPHQL_ENDPOINT: https://api.st-retrospect.dh-center.ru/graphql
+```
+
+3. Change necessary environment variables
+4. Run with `docker-compose up`