samgohel / Node-Docker-Demo

A Docker Demo Application Using Node And Express With Dev. And Prod. Configuration.

Docker Demo Application With Node & Express

How To Run

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• Git Clone
• CD Into Project
• Open Terminal
• bash docker-compose -f docker-compose.yml -f docker-compose.dev.yml up -d --build
• End Points:
  • Home
    • (GET) http://localhost:3000/api/v1
  • Create User
    • (POST) http://localhost:3000/api/v1/users/signup
    • (body: username(String), password(String))
  • Login
    • (POST) http://localhost:3000/api/v1/users/login
    • (body: username(String), password(String))
  • Get All Post
    • (GET) http://localhost:3000/api/v1/posts/
  • Get One By Id (GET) http://localhost:3000/api/v1/posts/:id
  • Create Post
    • (POST) http://localhost:3000/api/v1/posts/
    • (Body: title(String), body(String))
  • Update Post
    • (PATCH) http://localhost:3000/api/v1/posts/:id
    • (Body: title(String), body(String))

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libraries and other modules used

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• Node
• Express
• Express Session
• Cors
• Nodemon
• Bcrypt
• Redis
• Mongo DB
• Mongoose
• Docker
• Docker Compose

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Important Tasks

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Create Simple Node And Express Application

• Node init
• Add Express

Create Dockerfile

• FROM
• WORKDIR
• COPY
• ARG
• RUN
• COPY
• ENV
• EXPOSE
• CMD

Create .dockerignore

Create Docker Compose file

• docker-compose.yml
• docker-compose.dev.yml
• docker-compose.prod.yml

Setup MongoDb Image Docker

• Define Mongo Image
• Define Mongo User Details
• Add Named Volume
• Add DB Connection In Express App

Add Following Into Express App

• create Post Model
• Create Post Controller
• Create Post Routes
• Add Routes Into Index
• Add Middleware JSON
• Create User Model
• Create Auth Controller
• Create User Routes
• Add Routes Into Index
• Add Bcryptjs For Store Encrypted Password
• Encrypt Password In AuthController
• Create Login In Auth Controller
• Create Login Routes

Add Redis

• Add Redis Image
• Add Redis Dependencies Into Express App
• Add Redis ENV
• Add Redis Config
• Add User Details Into Session
• Add Middleware To Store Session Details
• Add Middleware To Protect Unauthorized Access

Add Nginx

• Add Nginx Image
• Create default conf file
• Add Nginx Configurations
• Port Setup For Nginx

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Personal Reference Note

• Dockerfile:
• Docker Ignore:
• Docker Compose:
• Volume:
• Named Volumes:
• Anonymous Volumes:
• Read Only Volumes:
• Node Run Command:
• ENV Variables:
• Switching Dev And Prod Env:
• Args Docker Command:
• DB Access In Container:
• Getting IP From Container:
• Depends On:
• Start Order, Only Build Single Container:
• Scale Up Using nginx & Load balancing:
• Production Env Setup:
• Push Github:
• Pull Into Prod Env:
• Prod Running Cycle:
• Docker Hub:
• Docker Swarm:
• Watch Tower:

Commands And Tag Description

• FROM:
• WORKDIR:
• COPY:
• RUN(With Condition):
• COPY(Two Steps):
• EXPOSE:
• CMD(Prod,Dev):
• volume:
• Tag(-V):
• Tag(--no-deps):
• Tag(--Force-recreate):
• Tag(--Build):
• Docker image ls:
• Docker image rm:
• Docker Build -t:
• Tag(-d):
• Tag(-f):
• Volume prune:

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Issues You Might Face

• Nodemon Not Working In Docker Container, Then Change Run Command (--legacy-watch index.js)
• Mongo Connection Issue.
• Mongo Authentication Failed, Then Run
  (use admin; db.grantRolesToUser('admin', [{ role: 'root', db: 'admin' }]))
  • *admin = Your Mongo DB Username

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