Merge pull request #53 from Danpiel/docker

 Switch application base to alpine
Remove expose of database port
Restart policies for both

Dockerfile

@@ -1,6 +1,6 @@
-FROM node:latest
+FROM node:alpine
 WORKDIR /usr/src/discord-rss
 COPY package*.json ./
 RUN npm install
 COPY . .
-CMD ["node", "server.js"]
+CMD ["node", "server.js"]

docker-compose.yml

@@ -1,22 +1,23 @@
 version: "3"
-volumes:
-  mongo:
 services:
   mongo:
-    container_name: discord-rss-mongo
-    # Use port 27018 instead of the default 27017 to prevent conflicts
-    command: mongod --port 27018
+    container_name: discord-rss-mongodb
+    restart: on-failure:5
+    command: mongod --port 27017
     # Uncomment below to hide mongo logs
     #logging:
     #  driver: none
-    image: mongo
+    image: mongo:latest
     volumes:
       - 'mongo:/data/db'
-    ports:
-      - "27018:27018"
-  discord-rss:
+    expose:
+      - 27017
+  discordrss:
     container_name: discord-rss
-    restart: always
+    restart: on-failure:10
     build: .
     links:
-      - mongo
+      - mongo
+
+volumes:
+  mongo: