sobadrush/ssh-ubuntu repository overview

FROM ubuntu:latest

RUN apt update && apt install openssh-server sudo -y

RUN apt install vim sudo -y

# Create a user “sshuser” and group “sshgroup” , -m: --create-home
RUN groupadd sshgroup && useradd -ms /bin/bash -g sshgroup sshuser

# Create sshuser directory in home
RUN mkdir -p /home/sshuser/.ssh

# Create RSA-KEY folder
RUN mkdir -p /home/sshuser/.ssh/authorized_keys/

# Copy the ssh public key in the authorized_keys file. The idkey.pub below is a public key file you get from ssh-keygen. They are under ~/.ssh directory by default.
# COPY idkey.pub /home/sshuser/.ssh/authorized_keys

# change ownership of the key file. 
RUN chown sshuser:sshgroup /home/sshuser/.ssh/authorized_keys && chmod 600 /home/sshuser/.ssh/authorized_keys

# Start SSH service
RUN service ssh start

# Expose docker port 22
EXPOSE 22

CMD ["/usr/sbin/sshd", "-D"]

docker run -d -p 2022:22 --name my-ssh-ubuntu sobadrush/ssh-ubuntu:ver1

ssh sshuser@localhost -p 2022

ssh -o "StrictHostKeyChecking no" [email protected] -p 2022