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Tech Learning Collective's Onion site

This repository provides an automated build of the public Tech Learning Collective Web site that is pre-configured to run as a Tor Onion service, inside Docker containers, using a Docker Compose configuration. The configuration provides three main services, and one ancillary service:

  • ssg, the static site generator, takes the public Web site's Jekyll templates and runs them through jekyll build to generate the site's complete HTML, JavaScript, and CSS source code files.
  • web, the HTTP server, is a simple Nginx container that serves the static files generated earlier. The ssg and web services share a subset of files so that whenever the ssg container builds new source code, the Web server begins serving them.
  • tor, the Tor Onion service server, provides a gateway to the Web server via a reverse proxy from the Tor network. This makes it possible to serve the Web site from a computer behind a NAT or a strict firewall, as long as it can make a connection to the Tor network.
  • watchtower, the ancillary service included to ensure that the base container image of the web and tor services are updated in a reasonable timeframe after updates and patches are made available for them, without requiring any further action on the part of human operators.

All of these are technologies that Tech Learning Collective instructors teach during courses and workshops. Please check us out if you want to learn more!

How to run your own Tech Learning Collective mirror Onion site

You can use this project to practice using any of the technologies mentioned above, to help us proliferate our content, or just to have fun. Here's how. The whole process, in a nutshell, goes like this:

  1. Install preqrequisite software
  2. Download required source code
  3. Run docker-compose up to spin up the mirror site

Install prerequisite software

First, you'll need to make sure your computer has the required software installed:

  1. Git: you can find a great Git installation guide from the team at GitHub.
  2. Docker:
    • macOS or Windows users should download the Docker Desktop version for their Operating System.
    • GNU/Linux users should follow the instructions for installing the Linux Docker Engine server.
  3. Docker Compose:
    • macOS or Windows users are already set, because Compose ships with Docker Desktop.
    • GNU/Linux users will probably need to take these few extra steps to install Compose on Linux.

Download required source code

Once you have the prerequisite software, you next need to download the source code and configurations contained in this repository.

We use a Git submodule to manage the source code for the Web site independently from this mirror Tor Onion site configuration. This allows us to modify both components independently. It also makes it super easy to use this same configuration to create a Tor Onion site based on some other statically-generated Web site other than our own.

To download both this repository and the code referenced by the submodule, use the following command invocation:

git clone --recursive https://github.com/tech-learning-collective/tech-learning-collective.github.io.onion.git

🔰 If command line interfaces (CLIs) are new to you, consider spending some time at our totally free "Foundations: Command Line Basics" course, available from our Web site.

💡 If the above command takes too long or uses too much disk space on your computer, you can optimize things by truncating the revision history with something known as a "shallow" Git clone, like this:

git clone --recursive --depth 1 --shallow-submodules https://github.com/tech-learning-collective/tech-learning-collective.github.io.onion.git

The above command will have created a folder called tech-learning-collective.github.io.onion for you. Go there with the following command:

cd tech-learning-collective.github.io.onion

You're now ready to generate the Web site and start serving it as a Tor Onion service.

Run docker-compose up to spin up the mirror site

The docker-compose.yaml file contains a description of how the three different microservices (the static site generator, the Web server, and the Tor server) work together. This description contains the details about what commands to run, where to mount certain files and directories, which network ports should be used, and more. All you have to do is tell Docker to do its thing.

The simplest way to do that is with this command invocation:

docker-compose up

This will build all three containers, create a network for them to connect to one another, and run them while attached to that network.

🔰 If you see an error like this...

ERROR: Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running?

...try running the command with elevated privileges, such as with the sudo command, sudo docker-compose up, if you're on Linux.

💡 After you run this command, your terminal will be "attached" to the running containers. This means that instead of returning to your shell's command prompt after the containers finish starting up, you will instead see their standard output and standard error data streams displayed on your terminal. To return to your terminal prompt, press CTRL-C (^C) to send the normal interrupt signal to the container. This will also cause the container to stop, though.

To bring the containers up while keeping your terminal unattached, use the --detach or -d flag when you invoke docker-compose up, like this:

docker-compose up --detach

Bringing the containers up in this --detached way means you will also need to use the docker-compose logs command to view the output described next.

You'll see a lot of output scroll by as the containers start up and do their thing. Some important lines to notice are:

  • the Onion address of your new Tor Onion site. It will look something like this:
    tor_1  | Entrypoint INFO     web: fdxwfyygp2ctzemwyogxex7su227tmiruascinayzeyrtb5kvj5rylad.onion:80 
    
    Of course, the random-looking string of text before .onion will look different for you. That's your new Onion addres. Go ahead and download a copy of the Tor Browser if you don't already have it, then try going to the Onion domain shown in the output of your terminal.
  • indication that the Web site has been generated successfully. That will be a line that exactly matches this:
    techlearningcollectivegithubioonion_ssg_1 exited with code 0
    
    When a computer program exits "with code 0" (zero), it's telling you that it thinks it's done its job successfully. Don't be disappointed if the Onion site doesn't show up exactly right until you see this line appear. It can take some time!

That's it! You're running a copy of our public Web site as a Tor Onion site. You've just made the Dark Web a little bit bigger, and a little bit queerer. :)

If you ever want to update your copy with the latest changes we make to our Web site, such as new event listings or blog posts we add, you merely need to run these two invocations again:

cd src && git pull              # In the "source" directory, pull in new changes.
cd ..  && docker-compose up ssg # Back in the main directory, run the `ssg` container again.

To keep your copy of the site updated automatically, you can put these commands in a shell script and run the script on a schedule by using any number of scheduling tools, such as the famous UNIX cron utility.

Come to a Tech Learning Collective workshop!

Had fun? Had trouble? Want to learn more? Join us at any of these relevant Tech Learning Collective workshops:

You can also learn more about Tech Learning Collective from our blog.

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Dockerized Tor Onion site version of the main Tech Learning Collective public-facing Web site.

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