Architecture Diagram:

Pull Docker images from docker hub

   ```
   docker pull mongo
   ```
   
   ```
   docker pull mongo-express
   ```

List images

docker images

Run both containers to make mongo db container available for our application

##Docker Network:

1. Create Docker Network

docker network create mongo-network

Run mongo container from mongo image

docker run -d \  
-p 27017:27017 \
-e MONGO_INITDB_ROOT_USERNAME=admin \
-e MONGO_INITDB_ROOT_PASSWORD=password \
--name mongodb \
--net mongo-network \
mongo

Check container logs

docker logs <container-id>

Run mongo-express UI container from mongo-express image

docker run -d \
-p 8081:8081 \
-e ME_CONFIG_MONGODB_ADMINUSERNAME=admin \
-e ME_CONFIG_MONGODB_ADMINPASSWORD=password \
--net mongo-network \
-e ME_CONFIG_MONGODB_SERVER=mongodb \
–name mongo-express \
mongo-express 

list currently running containers

docker ps

list all containers (stopped/running)

docker ps -a

2. Docker Compose:

Running yaml file:

docker-compose -f mongo-docker-compose.yaml up -d

docker-compose <file> <filename> up <detached-mode>

Stopping & removing container:

docker-compose -f mongo-docker-compose.yaml down -d

Note: docker-compose down also removes automatically created docker network

DOCKER-COMPOSE YAML CODE

version: '3'
services:
    mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password
  mongo-express:
    image: mongo-express
    ports:
      - 8081:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb