docker乘以一个容器的主机名

Question

如何在docker-compose中为某些docker添加多个主机名？容器应该通过自己看多个主机名，例如：

ping name: should resolve 127.0.0.1 (or $docker_ip)
ping another.name: should resolve 127.0.0.1 (or $docker_ip)

Answer 1

使用extra-hosts：

extra_hosts:
 - "name:127.0.0.1"
 - "another.name:127.0.0.1"

与docker run --add-host具有相同的效果：

> docker run --add-host another.name:127.0.0.1 sixeyed/ubuntu-with-utils ping another.name
PING another.name (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.057 ms