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Created May 11, 2016 15:05
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Connect docker containers
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hello.md 
# Create a network
$ docker network create foo
24ec61d239758d698d07cbb13f1adb0616d2011495fbff911930f743bd9bfc23

# Create two containers (separate terminals)
$ docker run --rm -it --name c1 --net foo centos:7 bash
$ docker run --rm -it --name c2 --net foo centos:7 bash

# Ping
[root@08dbf9ce687f /]# ping c1
PING c1 (172.21.0.3) 56(84) bytes of data.
64 bytes from c1.foo (172.21.0.3): icmp_seq=1 ttl=64 time=0.118 ms
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