Docker compose example

What is 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.

Benefits of Docker Compose

• Single host deployment – This means you can run everything on a single piece of hardware
• Quick and easy configuration – Due to YAML scripts
• High productivity – Docker Compose reduces the time it takes to perform tasks
• Security – All the containers are isolated from each other, reducing the threat landscape

Just quick post with example about docker-compose file to show you how much powerful this instead of running docker compose

1. create file called docker-compose.yml

version: '3'
services:
  ghost:
    image: ghost:1-alpine
    container_name: ghost-blog
    restart: always
    ports:
      - 80:2368
    environment:
      database__client: mysql
      database__connection__host: mysql
      database__connection__user: root
      database__connection__password: P4sSw0rd0!
      database__connection__database: ghost
    volumes:
      - ghost-volume:/var/lib/ghost
    depends_on:
      - mysql

  mysql:
    image: mysql:5.7
    container_name: ghost-db
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: P4sSw0rd0!
    volumes:
      - mysql-volume:/var/lib/mysql

volumes:
  ghost-volume:
  mysql-volume:

2. Run

docker-compose up -d

Finished

Osama