我有两个现有的docker容器网络和数据库。我想链接这两个容器,以便它们彼此通信。如果我使用--link命令,则它将把网络链接到一个新映像,而不是数据库。
I have two existing docker container web and db. I want to link these two container, so that they will communicate with each other. If i go with --link command means it will link web to a new image and not to the db.
推荐答案使用-link 是在Docker网络出现之前连接容器的唯一方法。这些为容器间通信问题提供了更清洁的解决方案,同时解决了两个主要的链接限制:
Using --link was the only way of connecting containers before the advent of docker networks. These provide a "cleaner" solution to the problem of inter-container communication and at the same time solves 2 of the major limits of links:
使用docker网络,您可以使用-net 选项在指定网络上启动容器:
Using docker network you would use the --net option to start the containers on the specified network:
docker network create example docker run -d --net example --name container1 <image> docker run -d --net example --name container2 <image>此时,两个容器可以通过地址< container相互访问-name> .example :即 container1.example 和 container2.example 。
At this point the 2 container are mutually reachable via the address <container-name>.example: that is container1.example and container2.example.
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连接两个Docker容器
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