This Dockerfile file starts by pulling the ubuntu:latest base image. RUN chown sshuser:sshgroup /home/sshuser/.ssh/authorized_keys & chmod 600 /home/sshuser/.ssh/authorized_keys They are under ~/.ssh directory by default.ĬOPY idkey.pub /home/sshuser/.ssh/authorized_keys The idkey.pub below is a public key file you get from ssh-keygen. # Copy the ssh public key in the authorized_keys file. RUN groupadd sshgroup & useradd -ms /bin/bash -g sshgroup sshuser # Create a user “sshuser” and group “sshgroup” RUN apt update & apt install openssh-server sudo -y Next, create a new directory named "sshdemo" and create a Dockerfile.
#PYTHON 3 CREATE SSH TUNNEL FOR DOCKER HOW TO#
If you do not have one, follow our blog on how to set up SSH keys. Step 1 - Build docker image with OpenSSHįirst, you will need an SSH keypair. This repository comes with the necessary Dockerfile and Linux image references so that you can get started immediately.īelow, we will set things up from scratch so you can follow along step by step. This means packaging the OpenSSH server beside your containerized application.įor a quick demo of sshing into a Docker container, you can check the docker image published by LinuxServer.io LinuxServer-OpenSSH-Server. To enable SSH, the docker image must be pre-configured with an OpenSSH server. Method 1: Docker shell using OpenSSHįirst, let's look at how to enable SSH in a container. This post will explore two methods to get shell access into a Docker container using OpenSSH and the docker exec command. While SSH is familiar, Docker provides more lightweight and easier-to-use methods that don't require running your container with an SSH server. SSH has always been the default mechanism to get remote shell access into a running Unix or Linux operating system from a terminal client to execute commands.
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