Connect two Docker containers using networking

docker-network.md

Connect two Docker containers using network

Oversimplified HOWTO based on the Docker networking tutorial.

Create a user-defined bridge network

docker network create --driver bridge redis-net

Start our Redis database

docker run --name redis -d --network redis-net redis

Start our web app

We assume that it wants to connect to a Redis server named redis, for example the app used in the official Docker tutorial.

docker run --name webapp -p 4000:80 --network redis-net our-web-app-that-uses-redis

This runs until Ctrl-C.

Stop the Redis database

docker stop redis

Cleanup

docker container rm redis webapp
docker network rm redis-net