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Docker compose

Here is the docker compose file generated by Crane It.

version: "3.8"
volumes:
  ghost-data: {}
  ghost-db: {}
services:
  ghost: &ghost
    container_name: ghost
    image: ghost:5
    environment:
      - database__client=mysql
      - database__connection__database=ghost
      - database__connection__host=db
      - database__connection__password=${MYSQL_PASSWORD}
      - database__connection__user=ghost
      - url=https://${CRANE_IT_EB_DOMAIN}
    volumes:
      - ghost-data:/var/lib/ghost/content
    restart: always
    links:
      - db
    expose:
      - "2368"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.ghost.rule=Host(`$CRANE_IT_EB_DOMAIN`)"
      - "traefik.http.routers.ghost.entrypoints=websecure"
      - "traefik.http.routers.ghost.tls.certresolver=myresolver"
      - "traefik.http.services.ghost.loadbalancer.server.port=2368"
    ports: []

  db: &db
    container_name: db
    image: mysql:8.0
    environment:
      - MYSQL_DATABASE=ghost
      - MYSQL_PASSWORD=${MYSQL_PASSWORD}
      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
      - MYSQL_USER=ghost
    volumes:
      - ghost-db:/var/lib/mysql
    restart: always
    ports: []

  traefik:
    image: "traefik:v2.9.5"
    container_name: traefik
    command:
      - "--log.level=INFO"
      - "--api.insecure=false"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--certificatesresolvers.myresolver.acme.httpchallenge=true"
      - "--certificatesresolvers.myresolver.acme.httpchallenge.entrypoint=web"
      - "--certificatesresolvers.myresolver.acme.email=craneit.contact@gmail.com"
      - "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
      - "./letsencrypt:/letsencrypt"

The docker compose file is quite simple if you ignore traefik and its related labels. Traefik allow us to use HTTPS.

WARNING: Note that is you connect this project to a custom domain, you’ll have the modify the “url” environment variable, to make it match the name of the custom domain. By default, it’s value is https://${CRANE_IT_EB_DOMAIN}, (the elastic beanstalk domain).

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