working on mongodb authentication with nodejs inside docker

Dockerfile

@@ -3,7 +3,7 @@ FROM node
 WORKDIR /app
 
 # Copying npm config file setting npm repository location.
-# COPY .npmrc .npmrc
+COPY .npmrc .npmrc
 
 # If you add the package.json first and run npm install later,
 # Docker won’t have to install the dependencies again if you
@@ -14,6 +14,8 @@ COPY package.json /app
 RUN npm install
 COPY . /app
 
+ENV myName="John Doe"
+
 CMD node app.js
 
 EXPOSE 3001

README.md

@@ -1 +1,9 @@
-Nothing to see here yet, folks.
+Quarta tarefa:
+
+Faça com que o usuário e a senha do MongoDB seja passada para seu App utilizando variável de ambiente do Docker.
+
+Utilize um script bash para validar se as variáveis estão preenchidas antes de levantar o NodeJS.
+
+Mande foto do Dockerfile, código fonte e script bash.
+
+* passar usuário/senha por varíavel de ambiente docker (ENV). Usar bash para verificar se variável foi mesmo passada, se os campos de user/pass foram preenchidos.

app.js

@@ -2,7 +2,7 @@ var express = require('express');
 var app = express();
 var mongoose = require('mongoose');
 var Schema = mongoose.Schema;
-var database = 'mongodb://mongo:27017/test';
+var database = 'mongodb://myTester:test@mongo:27017/test';
 var today = new Date();
 var counter = 0;
 var Prometheus = require("prom-client");

docker-compose.yml

@@ -14,6 +14,7 @@ services:
   mongo:
     container_name: mongo
     image: mongo
+    command: --auth
     ports:
       - "27017:27017"
   prometheus:

org_cheat_sheet

@@ -0,0 +1,71 @@
+SUPER ONBOARD HELP CHEATSHEET
+
+PREPARING ENVIROMENT
+
+
+// Simple way to connect to database
+mongoose.connect(database).then(
+   () => {console.log('Database is connected') },
+   err => { console.log('Can not connect to the database' +err)
+});
+
+npm :: config
+// npm config set registry <registry url>
+// using command line
+npm config set registry http://npm.repo.labbs.com.br
+// using .npmrc file
+registry=http://npm.repo.labbs.com.br
+
+// Docker :: show container IP
+docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' [container_name]
+
+// Docker :: daemon config
+// daemon file path
+/etc/docker/daemon.json
+// daemon file content
+{
+	"bip": "192.168.128.1/18",
+	"dns": ["172.18.51.10", "172.18.51.11"]
+}
+
+// Docker :: send command line
+docker exec -it [container_name]
+
+// Ubuntu :: reload daemon and start/restart/stop services
+systemctl daemon-reload
+systemctl restart docker
+
+// Ubuntu :: check service status
+// all services
+service --status-all
+// one specific service
+service docker status
+
+// MongoDB Access control
+// connecting to mongo shell inside docker:
+docker exec -it mongo mongo
+// create admin user
+use admin
+db.createUser(
+  {
+    user: "admin",
+    pwd: "admin",
+    roles: [ { role: "userAdminAnyDatabase", db: "admin" }, "readWriteAnyDatabase" ]
+  }
+)
+exit
+// reconnect to mongo shell turning access control on
+docker exec -it mongo mongo --auth
+// create new user
+use test
+db.createUser(
+  {
+    user: "myTester",
+    pwd: "test",
+    roles: [ { role: "readWrite", db: "test" },
+             { role: "read", db: "reporting" } ]
+  }
+)
+exit
+// logging in as new user
+mongo -u "myTester" -p "test" --authenticationDatabase "test"