UNIX on Emulated PDP11 in Docker

2.11BSD

A web server running on a recent version of 2BSD:

• DEC PDP-11/93 with 4 MB of memory and 456 MB RA81 disk drive
• emulated by Open SimH 4.x
• running 2.11BSD installed from tape during container build and patched to a recent version
• full internet connectivity using a DEC DELQA ethernet adapter
• serving HTTP using 2.11BSD httpd, exposed from docker on port 80

Try it out

$ docker run -it -p 8080:80 matushorvath/pdp11-2.11bsd-httpd

Or build your own image:

$ make 2.11bsd-httpd
$ make run

After you see the login: prompt, navigate your web browser to http://localhost:8080. You should see an "It works!" web page served by the PDP-11. You can also login as root without a password to get a shell.

To shut down the server, either stop the docker, or log in as root (no password) and run shutdown -h now.

UNIX v6

Ancient UNIX in a container, installed from tape during container build.

Try it out

$ docker run -it -p 8080:80 matushorvath/pdp11-unix-v6

After you see the login: prompt, login as root without a password. To stop the system, press Ctrl+E, then type quit and press Enter (or stop the docker).

Publishing

1. Prepare the release in the main branch
2. Tag the commit with the version number:

   $ git tag v0.1.0 main

3. Push the tag to GitHub:

   $ git push origin tag v0.1.0

4. GitHub Actions will publish docker images to Docker Hub

GitHub Actions setup: https://docs.docker.com/guides/reactjs/configure-github-actions