Docker compose basic Ubuntu & Nginx

docker-compose.yaml

version: "3"
services:
  ubuntu:
    container_name: ubuntu
    image: ubuntu
    restart: on-failure
    command: ["sleep","infinity"]
    ports:
      - '6379:80'
  nginx:
    container_name: nginx
    image: nginx
    ports:
      - '8080:80'

Save file with same name and run the below commands,

docker-compose up

Make sure file should exist in same dir where running command

Check container status

docker ps

If Ubuntu & Nginx container running

Go inside the Ubuntu Container

docker exec -it ubuntu bash

Now you are inside the container update the packages

apt update && apt install curl

Let's now try connecting to Nginx

curl nginx

You can install other module as per requirement on Ubuntu container (Consider it like PC) and from any other container you can connect to it by service name. .