Add config.js, dockerfile

Dockerfile

@@ -0,0 +1,19 @@
+FROM node
+
+WORKDIR /app
+COPY package.json yarn.lock ./
+COPY server/package.json ./server/
+RUN yarn install --frozen-lockfile --production
+
+WORKDIR /app/server
+
+COPY server/src ./src
+COPY server/quests ./quests
+COPY server/swagger.yaml .
+
+ENV NODE_ENV=production
+ENV HOST=0.0.0.0
+ENV PORT=3000
+EXPOSE 3000
+
+CMD [ "yarn", "start" ]