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Chapter-9.md

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  • Let's see how to run a node js application with database connection using docker containers.

  • We will be running mongo and mongo-express images and they both will be in same network so that they can communicate with each other using container name only.

  • The node js application will connect with mongo container using exposed port.

  • Create a docker network using "docker network create mongo-network"

  • (For setting up mongodb container) => docker run -p 27017:27017 -d -e MONGO_INITDB_ROOT_USERNAME=admin -e MONGO_INITDB_ROOT_PASSWORD=password --name mongodb --net mongo-network mongo

  • (For setting up mongo-express container) => docker run -d -p 8081:8081 -e ME_CONFIG_MONGODB_ADMINUSERNAME=admin -e ME_CONFIG_MONGODB_ADMINPASSWORD=password -e ME_CONFIG_MONGODB_SERVER=mongodb --name mongo-express --net mongo-network mongo-express

  • In .env file of the node.js application add this content

PORT=8000
MONGODB_URL='mongodb://admin:password@143.110.190.93:27017/users?authSource=admin'
  • Now access node application using http://{{IP_ADDRESS}}:8000