ssh tunnel to remote dockerized mongo server - mongodb

Question

I have a mongo docker instance running on a remote server, what is the correct way to access the command line from my local machine?
If i login to the remote host, i can access this by:
$ docker exec -it mongo-dev mongo ccc-mongo
but i am unsure how to do this from my local machine.
I tried this:
$ ssh -L 4321:localhost:27017 khine#ccc1 -f -N
Are you sure you want to continue connecting (yes/no)? yes
khine#ccc1's password:
khine#dhegdheer:~/Sandboxes/$ mongo --port 4321
MongoDB shell version: 2.4.9
connecting to: 127.0.0.1:4321/test
channel 2: open failed: connect failed: Connection refused
Wed Sep 9 15:36:44.386 DBClientCursor::init call() failed
Wed Sep 9 15:36:44.388 Error: DBClientBase::findN: transport error: 127.0.0.1:4321 ns: admin.$cmd query: { whatsmyuri: 1 } at src/mongo/shell/mongo.js:147
exception: connect failed
on my remote machine i have 3 mongo instances running
khine#ccc1 /ccc $ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
22a32b4f6a1d redis:2.8 "/entrypoint.sh redi 7 days ago Up 7 days 6379/tcp redis-web
167b022ab793 mongo:2.4 "/entrypoint.sh mong 7 days ago Up 7 days 27017/tcp mongo-web
ab84ea6cb44a redis:2.8 "/entrypoint.sh redi 2 weeks ago Up 2 weeks 6379/tcp redis-www
04dcc306af04 redis:2.8 "/entrypoint.sh redi 2 weeks ago Up 2 weeks 6379/tcp redis-dev
02c0c18307dc mongo:2.4 "/entrypoint.sh mong 2 weeks ago Up 2 weeks 27017/tcp mongo-www
61df69ec7edb mongo:2.4 "/entrypoint.sh mong 2 weeks ago Up 2 weeks 27017/tcp mongo-dev
running docker inspect, i get this:
khine#ccc1 /ccc $ docker inspect 61df69ec7edb
[{
"AppArmorProfile": "",
"Args": [
"mongod"
],
"Config": {
"AttachStderr": false,
"AttachStdin": false,
"AttachStdout": false,
"Cmd": [
"mongod"
],
"CpuShares": 0,
"Cpuset": "",
"Domainname": "",
"Entrypoint": [
"/entrypoint.sh"
],
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"MONGO_VERSION=2.4.14"
],
"ExposedPorts": {
"27017/tcp": {}
},
"Hostname": "61df69ec7edb",
"Image": "mongo:2.4",
"HostConfig": {
"Binds": [
"/ccc/mongo-data/dev:/data/db"
],
"CapAdd": null,
"CapDrop": null,
"CgroupParent": "",
"Name": "/mongo-dev",
"NetworkSettings": {
"Bridge": "docker0",
"Gateway": "172.17.42.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.34",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"LinkLocalIPv6Address": "fe80::42:acff:fe11:22",
"LinkLocalIPv6PrefixLen": 64,
"MacAddress": "02:42:ac:11:00:22",
"PortMapping": null,
"Ports": {
"27017/tcp": null
}
},
"Path": "/entrypoint.sh",
"ProcessLabel": "",
"ResolvConfPath": "/var/lib/docker/containers/61df69ec7edb6995f06d797f5b2eed420d0c4daa4cd089c3b9174900d72d0b13/resolv.conf",
"RestartCount": 0,
"State": {
"Dead": false,
"Error": "",
"ExitCode": 0,
"FinishedAt": "0001-01-01T00:00:00Z",
"OOMKilled": false,
"Paused": false,
"Pid": 15346,
"Restarting": false,
"Running": true,
"StartedAt": "2015-08-26T06:01:55.361817334Z"
},
"Volumes": {
"/data/db": "/ccc/mongo-data/dev"
},
"VolumesRW": {
"/data/db": true
}
}
]
if i add the IP address for the instance, i get this warning
$ Warning: remote port forwarding failed for listen port 4321
any advice much appreciated.