Adds needed docker-support to enable automatic deployment via teamcity

.dockerignore

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+node_modules
+npm-debug.log

Dockerfile

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+FROM node:12
+
+# Create app directory
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+# where available (npm@5+)
+COPY backend/package*.json ./
+
+RUN npm install
+
+# Bundle app source
+COPY backend .
+
+EXPOSE 3000
+CMD [ "node", "server.js" ]

docker-compose.yml

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+version: '3'
+services:
+  web:
+    build: .
+    command: npm start
+    ports:
+      - 1234:3000