如何将docker-compose.yml文件交叉到链接容器

Question

docker-composeA.yml

mysql:
    image: mysql
    environment:
        - XXX=XXX
gogs:
    image: gogs/gogs
    links:
        - mysql:mysql # ok

docker-composeB.yml

tomcat:
    image: javaweb:8
    links:
        - mysql:mysql // wrong, can not find mysql defination

现在我想链接在docker-composeA.yml中定义的mysql容器，但是当我用docker-composeB.yml运行docker-compose up时，它显示'mysql is undefined‘。那么我如何链接容器交叉docker-compose.yml文件呢？

Answer 1

links和depends_on都需要引用同一个Docker组合文件中定义的服务。你需要external_links。