multi-container-apps

Building Multi-Container Applications with Docker

Key Topics

• Combining Multiple Services to One App
• Working with Multiple Containers

Target Application

Create the application

Run the following commands to start the necessary containers for building the target application.

1. Network
   docker network create goals-net

2. MongoDB Database
   

     # Run Container
     docker run \
       --network goals-net \
       -v data:/data/db \
       -e MONGO_INITDB_ROOT_USERNAME=user \
       -e MONGO_INITDB_ROOT_PASSWORD=secret \
       --rm -d --name mongodb \
       mongo

3. NodeJS Backend
   

     # Build Image
     docker build -t goals-node .
   
     # Run Container
     docker run \
       --network goals-net \
       -v logs:/app/logs \
       -v $(pwd):/app \
       -v /app/node_modules \
       -e MONGODB_USERNAME=user \
       -p 80:80 \
       --rm -d --name goals-backend \
       goals-node

4. ReactJS Frontend
   

     # Build Image
     docker build -t goals-react .
   
     # Run Container
     docker run \
       -v $(pwd)/src:/app/src \
       -p 3000:3000 \
       --rm -d --name goals-frontend \
       goals-react

Room for Improvement

• Three, long docker run commands
  It would be great to not have to remember or save those and to avoid running them individually.
• Development-only setup
  Not optimized for production, shouldn’t be executed like this on a production server