Python

docker run -it -p 192.168.1.200:9200:9200 redis_cluster 9200
Python

root@ubuntu:~#
 iptables -t nat -L -n
ChainPREROUTING(policyACCEPT)
target  protoptsource       destination
DOCKER  all -- 0.0.0.0/0      0.0.0.0/0      ADDRTYPEmatchdst-typeLOCAL
ChainINPUT(policyACCEPT)
target  protoptsource       destination
ChainOUTPUT(policyACCEPT)
target  protoptsource       destination
DOCKER  all -- 0.0.0.0/0     !127.0.0.0/8     ADDRTYPEmatchdst-typeLOCAL
ChainPOSTROUTING(policyACCEPT)
target  protoptsource       destination
MASQUERADE all -- 172.17.0.0/16    0.0.0.0/0
MASQUERADE all -- 172.17.0.0/16   !172.17.0.0/16
MASQUERADE tcp -- 172.17.0.1     172.17.0.1     tcpdpt:9200
ChainDOCKER(2references)
target  protoptsource       destination
DNAT   tcp -- 0.0.0.0/0      0.0.0.0/0      tcpdpt:9200to:172.17.0.1:9200

root@ubuntu:~# docker ps -a
CONTAINER ID    IMAGE        COMMAND        CREATED       STATUS       PORTS        NAMES
232621e9e9fb    redis_cluster    "/app/manage.sh 9000  41 minutes ago   Up 41 minutes              agitated_blackwell
root@ubuntu:~# docker inspect -f "{{.State.Pid}}" 232621e9e9fb
4777
root@ubuntu:~# pid=4777

mkdir-p/var/run/netns
ln-s/proc/$pid/ns/net/var/run/netns/$pidiplinkaddAtypevethpeernameB
brctladdifdocker0A
iplinksetAup
iplinksetBnetns$pid
ipnetnsexec$pidiplinksetdevBnameeth0
ipnetnsexec$pidiplinkseteth0up
ipnetnsexec$pidipaddradd192.168.1.200/24deveth0
ipnetnsexec$pidiprouteadddefaultvia192.168.1.1

bash-4.1#
 ip a
1:lo:<LOOPBACK,UP,LOWER_UP>mtu65536qdiscnoqueuestateUNKNOWN
  link/loopback00:00:00:00:00:00brd00:00:00:00:00:00
  inet127.0.0.1/8scopehostlo
   valid_lftforeverpreferred_lftforever
  inet6::1/128scopehost
   valid_lftforeverpreferred_lftforever
22:eth0:<BROADCAST,MULTICAST,UP,LOWER_UP>mtu1500qdiscpfifo_faststateUPqlen1000
  link/etherca:aa:87:05:c9:5abrdff:ff:ff:ff:ff:ff
  inet192.168.1.200/24scopeglobaleth0
   valid_lftforeverpreferred_lftforever
  inet6fe80::c8aa:87ff:fe05:c95a/64scopelink
   valid_lftforeverpreferred_lftforever
bash-4.1#