Docker Compose
Docker Compose is a tool for running multi-container applications on Docker defined using the Compose file format. A compose file is used to define how one or more containers that make up your application are configured. Once you have a Compose file, you can create and start your application with a single command: docker compose up.
What is YAML?
YAML is a human-readable data serialization language that is often used for writing configuration files. Depending on whom you ask, YAML stands for yet another markup language or YAML ain’t markup language (a recursive acronym), which emphasizes that YAML is for data, not documents.
YAML is a popular programming language because it is designed to be easy to read and understand. It can also be used in conjunction with other programming languages. Because of its flexibility, and accessibility, YAML is used by Ansible to create automation processes, in the form of Ansible Playbooks. YAML files use a .yml or .yaml extension.
Task-1
Learn how to use the docker-compose.yml file, to set up the environment, configure the services and links between different containers, and also to use environment variables in the docker-compose.yml file.
Contents of docker-compose.yml
Content of index.html(available on internet)
Using docker compose command to build image and run container
Task-2
Pull a pre-existing Docker image from a public repository (e.g. Docker Hub) and run it on your local machine.
Inspect the container's running processes and exposed ports using the docker inspect command.
Use the docker logs command to view the container's log output.
Use the docker stop and docker start commands to stop and start the container.
Use the docker rm command to remove the container when you're done.
