07 Docker-Compose

Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration.

• Open docker-compose.yml and examine the content of the file.

• Note :

  • Internal name
  • Container name
  • Build
  • Ports
  • Volumes (data is external from the container)

• To build and run the container run

docker-compose up

• Note we build the container in this example, but we could just as well, pull one from a registry.
• Refresh the browser to http://studentip:80 and see the website is running again.
• While it’s running, go to html/index.html and replace src="Devops-toolchain.svg.png"> with src="docker-compose.jpeg"> and save.
• Refresh the website, and see it got a more fitting picture.
• Press ctrl+cto cancel the running container.