What is Docker Compose and how do I use it?

What is Docker Compose?

Docker Compose is a tool that allows you to define and run multi-container Docker applications using a simple YAML file.

How do I create a Docker Compose file?

You create a Docker Compose file named 'docker-compose.yml' where you define the services, networks, and volumes for your application.

Can you give me an example of a Docker Compose file?

Sure! Here's a simple example:

version: '3'
services:
  web:
    image: nginx
    ports:
      - "80:80"
  db:
    image: postgres
    environment:
      POSTGRES_PASSWORD: example

How do I start my application using Docker Compose?

You can start your application by running the command docker-compose up in the directory where your 'docker-compose.yml' file is located.