Instalación:

http://readme.drone.io/admin/

Instalamos docker-compose si no lo tenemos:

curl -L "https://github.com/docker/compose/releases/download/1.11.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

Creamos fichero compose y lo ejecutamos:

docker-compose -f docker-compose.yml up

docker-compose.yml:

version: '2'

services:
  drone-server:
    image: drone/drone:0.5
    ports:
      - 8080:8000
    volumes:
      - ./drone:/var/lib/drone/
    restart: always
    environment:
      - DRONE_OPEN=true
      - DRONE_GITHUB=true
      - DRONE_GITHUB_CLIENT=iwanttobefreak
      - DRONE_GITHUB_SECRET=***************
      - DRONE_SECRET=drone

  drone-agent:
    image: drone/drone:0.5
    command: agent
    restart: always
    depends_on: [ drone-server ]
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - DRONE_SERVER=ws://proxmox1:8080/ws/broker
      - DRONE_SECRET=drone