Add docker-compose.yml (#7966)

Dockerfile

@@ -1,20 +1,23 @@
-# The base image is the latest 8.x node (LTS)
-FROM node:8.16.1@sha256:a07ce30ff4e6ae7a6f2c2c1abd7b7b293aaee89510569932a68d00b897cbe055
+FROM node:lts
 
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
 
 ARG NODE_ENV
 ENV NODE_ENV $NODE_ENV
+
 COPY install/package.json /usr/src/app/package.json
-RUN npm install && npm cache clean --force
+
+RUN npm install --only=prod && \
+    npm cache clean --force
+    
 COPY . /usr/src/app
 
 ENV NODE_ENV=production \
     daemon=false \
     silent=false
 
+EXPOSE 4567
+
 CMD ./nodebb start
 
-# the default port for NodeBB is exposed outside the container
-EXPOSE 4567

docker-compose.yml

@@ -0,0 +1,24 @@
+version: '3.5'
+
+services:
+  node:
+    build: .
+    restart: unless-stopped
+    depends_on:
+      - db
+    expose:
+      - 4567 # use a reverse proxy like Traefik
+
+  db:
+    image: mongo:bionic
+    restart: unless-stopped
+    expose:
+      - 27017
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: root
+      MONGO_INITDB_ROOT_PASSWORD: root
+    volumes:
+      - mongo:/data/db
+
+volumes:
+  mongo: