jtilander/docker-ssh repository overview

⁠SSH in docker

⁠Why?

Frequently one has to do debugging in live environments where you might not actually

⁠Usage

An example usage would be that you ssh into this container, and forward some ports to another container in the private overlay network, to access e.g. a database through a port that is not visible outside the overlay network.

This way you can connect a GUI tool for said database on your local machine to

docker run --rm --network MYNET -d -p 2222:22 jtilander/docker-ssh

This will connect the docker container to the internal MYNET network, and you can then access the containers from there.

Let's say we run a PostgreSQL database in the MYNET stack at the hostname mydatabase. We can then access it by a local tunnel via this command:

ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o ServerAliveInterval=5 -o ServerAliveCountMax=1 -L localhost:5432:mydatabase:5432 -l root dockercontainerhost.myprovider.com:2222

⁠Environment variables

⁠Alternatives

• https://github.com/jeroenpeeters/docker-ssh⁠ -- webterminal for containers (much like rancher provides)