Docker is a tool which is used by developer and operation teams to create and automate the deployment of applications in lightweight containers so that applications can work efficiently in different environments.
Docker Compose is used for running multiple containers as a single service.
Here, containers run in isolation but can interact with each other.
All Docker Compose files are YAML files.
If you want to know all the concepts about docker in-depth and to grab a valuable certificate in it.you can have a look at the following Docker Training Course. If you like to read then you can read the following tutorial on Docker. To watch the free video tutorials on Docker you can visit the below-mentioned website:-