iptables - docker無法指定容器相連
docker配置：
root@ubuntu> ps -ef | grep docker
root xxxxx /usr/bin/dockerd -H fd:// -b=br0 --icc=false --iptables=true先起一個web主機：docker run -d --name web -p 8080:80 php-fpm:5.4
再起一個test主機測試連線：docker run -dit --name test --link web:web blackhole/ubuntu:0.1 bash
查看iptables filter的表格：
root@ubuntu> sudo iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy DROP)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain DOCKER (0 references)
target prot opt source destination
ACCEPT tcp -- 0.0.0.0/0 192.168.100.2 tcp dpt:80
ACCEPT tcp -- 192.168.100.3 192.168.100.2 tcp dpt:80
ACCEPT tcp -- 192.168.100.2 192.168.100.3 tcp spt:80
ACCEPT tcp -- 192.168.100.3 192.168.100.2 tcp dpt:443
ACCEPT tcp -- 192.168.100.2 192.168.100.3 tcp spt:443
ACCEPT tcp -- 192.168.100.3 192.168.100.2 tcp dpt:22
ACCEPT tcp -- 192.168.100.2 192.168.100.3 tcp spt:22進入test容器內部：
sudo docker exec -it test bash
root@00585b9efea8:/# cat /etc/hosts
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
192.168.100.2 web 2cec3235f5fa
192.168.100.3 00585b9efea8
root@00585b9efea8:/# ping web
PING web (192.168.100.2): 56 data bytes
^C--- web ping statistics ---
12 packets transmitted, 0 packets received, 100% packet loss
root@00585b9efea8:/# ping 192.168.100.2
PING 192.168.100.2 (192.168.100.2): 56 data bytes
^C--- 192.168.100.2 ping statistics ---
12 packets transmitted, 0 packets received, 100% packet loss
root@00585b9efea8:/# curl web
^C
root@00585b9efea8:/# curl http://192.168.100.2:80
^C指定容器相連的三個條件：--icc=fasle --iptables=true --link上面都已經滿足了。為了防止意外，再第一步之前也執行了iptables -F清除
問題出在哪裡呢？或者說可能出現在哪裡呢
