Turning a Git Repository into a Simple File Host with Cloudflare Workers
Recently I used Cloudflare Workers for the first time to create the website you're reading right now (look at Fruition to learn how I did it), and I decided to try out writing some of my own workers to get an idea of what it could do.
I was in need of a simple static file host to serve various small files - stuff like HTML, presentations, PDFs etc - and thought about how Git repository hosts generally allow you to view a file within a repository in its raw format, served directly to you without modifications. I figured that I could use a Cloudflare Worker to proxy a request to a raw file path on my Git hosting service, and rewrite any necessary headers to ensure that files are served to browsers correctly.
Here's how I did it:
- If you do not already have an account, sign up at CloudFlare and follow the step-by-step instructions provided to set up your domain to use their services.
- Click the workers button at the top of the page
- Set up your worker subdomain - this can be anything you like (if prompted), then click the manage workers button
- Click the create worker button
In the script editor on the left half of the page, replace the example script with this:
- Click the save and deploy button, and confirm that you want to save and deploy
- Go back to your domain's dashboard, and click the workers button again like in step 2
- Click the add route button
- Specify the route that the worker function will serve git repository assets for (e.g.
files.exampledomain.com/*), select your worker function that you just created in the worker dropdown and then click save
- Click the DNS button at the top of the page
- Add a CNAME record, with the name set to the domain used in the
worker route, and the target can be set to a non-existent record (e.g.
- Try and open a file in your git repository by visiting
Your git repository is now like a simple file hosting server - files can be loaded directly over HTTP now. Since the worker script removes the content-disposition header if it is present and corrects the content-type header, it can also be used as an asset source within HTML and CSS.
I hope this helps you as much as it did for me - if you enjoyed this and found it interesting, please share it with your friends - I appreciate it a lot 😁