错误:

Error response from daemon: 
Cannot start container web: iptables failed: iptables -t nat -A DOCKER -p tcp -d 0/0 --dport 32797 -j DNAT --to-destination 172.17.0.30:5000 ! -i docker0: iptables:
No chain/target/match by that name.

解决办法:重建docker0网络恢复

pkill docker 
iptables -t nat -F 
ifconfig docker0 down 
brctl delbr docker0 
docker -d 
service docker restart