docker-compose up啟動又停止，需要加tty為true

如果docker-compose.yml如下，則用docker-compose up -d啟動起來的容器可能會立即停止。

version: '2'
services:
  mir-http-repo:
    image: 172.16.101.192/mir_docker/centos6.7_repo_jinzhong:v1.0
    container_name: mir-http-repo
    ports:
      - 8088:8088

解決辦法：加上tty為true

version: '2'
services:
  mir-http-repo:
    image: 172.16.101.192/mir_docker/centos6.7_repo_jinzhong:v1.0
    container_name: mir-http-repo
    ports:
      - 8088:8088
    tty: true