CODEWITHSUNDEEP
macosdockerportforwarding
Explosion Pills
Explosion Pills

Reputation: 191729

Connecting to rethinkdb (or any other app running on an http port) from the Docker OS X beta

I've installed the Docker for Mac beta which allows you to use docker commands directly. I want to try to run rethinkdb through docker, so I've followed the instructions of the rethinkdb docker container docs and done the following:

docker run --name some-rethink -v "$PWD:/data" -d rethinkdb

This works, and I can see the container with docker ps and start shell with docker exec -it /bin/bash

However, I can't connect to the admin panel on my Mac directly with their suggestion

$BROWSER "http://$(docker inspect --format \
  '{{ .NetworkSettings.IPAddress }}' some-rethink):8080"

This essentially amounts to google-chrome http://172.17.0.2:8080/, but this doesn't work. I asked around and was told

You can't use the docker private ip address space to access the ports

You have to forward them to the mac

However, I'm not sure how to do this as I don't have any port forwarding tools I'm familiar with such as ssh on the container itself. Using the suggested port forwarding command in the rethinkdb container docs ssh -fNTL ... but with localhost instead of remote does not work.

How can I connect to the rethinkdb admin panel through http with the docker beta on a Mac?

Upvotes: 2

Views: 764

Answers (1)

C. Reed
C. Reed

Reputation: 2452

Try forwarding the container port using the -p flag in the docker run command, e.g.:

docker run -p 8080:8080 --name some-rethink -v "$PWD:/data" -d rethinkdb

and then it should be accessible on localhost,

google-chrome http://127.0.0.1:8080/

Relevant docker run docs: https://docs.docker.com/engine/reference/run/#/expose-incoming-ports

Upvotes: 6

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