My goal is to setup a very minimalistic Ubuntu container for hosting a server within it. It should be accessible via ssh and have a persistent configuration.
I am currently having this server running within a virtual machine. This should move to Docker now since I would like to reduce complexity and increase maintainability (I have couple of other containers running perfectly).
What I've tried so far:
- Created a docker-compose.yml & Dockerfile and connected a local folder
- Got access to the container with "docker container exec -ti bash"
- Installed things within this machine, configured ssh
My issues are:
- The build seems to work, even with configuring ssh
- SSH via remote does not work - logging in via "docker container exec ... bash" works fine
- Configuring things within the machine, settings up ssh etc works (same commands like in Dockerfile) - SSH via remote works
- Shutting down (docker-compose down) and starting up (docker-compose up -d) resets everything I did within the machine
Do you have any ideas, or even a working docker-compose file? Searching for this results in thousands of articles how to install Docker on Ubuntu...
THANK YOU so much!
My Dockerfile looks like this
FROM ubuntu:latest
RUN apt-get update
RUN apt-get install openssh-server -y
RUN mkdir /var/run/sshd
RUN echo 'root:pwd' | chpasswd
# SSH allow root login via remote
RUN sed -i 's/#PermitRootLogin/PermitRootLogin/g' /etc/ssh/sshd_config
# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd
# RESTART SSH
RUN /etc/init.d/ssh restart
My docker-compose.yml looks like this
version: "3"
services:
# ubuntu server
ubuntu_test:
build: .
container_name: AAubuntuServerDockerfile
restart: always
command: ["sleep","infinity"]
volumes:
- './Docker/Data/Ubuntu_Test:/exchange:rw'
ports:
- "5555:22"
network_mode: bridge