dockerise back

backend/.dockerignore

+.dockerignore
+.env.example
+.eslintrc.js
+Dockerfile
+.gitignore
+

backend/Dockerfile

+FROM node:12.4
+
+WORKDIR /usr/src/app
+
+COPY package.json package-lock.json ./
+
+RUN npm install
+
+COPY . .
+
+RUN touch .env
+
+EXPOSE 3000
+
+ENTRYPOINT echo "PORT=$PORT" >> .env && echo "NODE_ENV=$NODE_ENV" >> .env \
+                && echo "MONGO_DB_URL=$MONGO_DB_URL" >> .env && node server.js
\ No newline at end of file

backend/server.js

 const express = require("express");
 const logger = require("morgan");
 const cors = require("cors");
-const mongoose = require("mongoose");
+// const mongoose = require("mongoose");
 const indexRouter = require("./routes/index");
 const usersRouter = require("./routes/users");
 const routeNotFoundJsonHandler = require("./services/routeNotFoundJsonHandler");
 const jsonErrorHandler = require("./services/jsonErrorHandler");
 
-mongoose.connect(process.env.MONGO_DB_URL);
+// mongoose.connect(process.env.MONGO_DB_URL);
 
 const app = express();