dragam@USDockerVM:~$ IRE> docker --version
Docker version 18.09.0, build 4d60db4

docker pull mongo.

docker run --name tom-mongo -d mongo:latest

docker run -it --link tom-mongo:mongo --rm mongo mongo --host mongo test

> use local
switched to db local
> show collections
startup_log
> db.startup_log.find().pretty()
produces 1 record with server startup details - time &c... no problems

dragam@USDockerVM:/$ IRE> docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
33c58af3862e        mongo               "docker-entrypoint.s…"   2 minutes ago       Up 2 minutes        27017/tcp           agitated_hypatia
c39d4ceff690        mongo:latest        "docker-entrypoint.s…"   41 minutes ago      Up 41 minutes       27017/tcp           tom-mongo

dragam@USDockerVM:/$ IRE> ps -ef | grep mongo
999      13490 13469  0 12:42 ?        00:00:05 mongod --bind_ip_all
dragam   17466 13242  0 13:20 pts/1    00:00:00 docker run -it --link tom-mongo:mongo --rm mongo mongo --host mongo test
999      17535 17513  0 13:20 pts/0    00:00:00 mongo --host mongo test
dragam   18021  2487  0 13:24 pts/0    00:00:00 grep --color=auto mongo

mongo mongodb://mongo:mongo@host:xxx.yyy.zzz.aaa/tom-mongo?ssl=true

mongo xxx.yyy.zzz.aaa/tom-mongo

dragam@USDockerVM:~$ IRE> lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.1 LTS
Release:    18.04
Codename:   bionic
dragam@USDockerVM:~$ IRE>

dragam@USDockerVM:/$ IRE> sudo iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy DROP)
target     prot opt source               destination
DOCKER-USER  all  --  anywhere             anywhere
DOCKER-ISOLATION-STAGE-1  all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere             ctstate RELATED,ESTABLISHED
DOCKER     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain DOCKER (1 references)
target     prot opt source               destination

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
target     prot opt source               destination
DOCKER-ISOLATION-STAGE-2  all  --  anywhere             anywhere
RETURN     all  --  anywhere             anywhere

Chain DOCKER-ISOLATION-STAGE-2 (1 references)
target     prot opt source               destination
DROP       all  --  anywhere             anywhere
RETURN     all  --  anywhere             anywhere

Chain DOCKER-USER (1 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere
dragam@USDockerVM:/$ IRE>