this post was submitted on 05 Mar 2024
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51
Best way to dockerize a static website? (lemmy.ml)
submitted 8 months ago by [email protected] to c/[email protected]
52 comments fedilink hide all child comments
 

I'm currently researching the best method for running a static website from Docker.

The site consists of one single HTML file, a bunch of CSS files, and a few JS files. On server-side nothing needs to be preprocessed. The website uses JS to request some JSON files, though. Handling of the files is doing via client-side JS, the server only need to - serve the files.

The website is intended to be used as selfhosted web application and is quite niche so there won't be much load and not many concurrent users.

I boiled it down to the following options:

  1. BusyBox in a selfmade Docker container, manually running httpd or The smallest Docker image ...
  2. php:latest (ignoring the fact, that the built-in webserver is meant for development and not for production)
  3. Nginx serving the files (but this)

For all of the variants I found information online. From the options I found I actually prefer the BusyBox route because it seems the cleanest with the least amount of overhead (I just need to serve the files, the rest is done on the client).

Do you have any other ideas? How do you host static content?

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[–] [email protected] 4 points 8 months ago (2 children)

Containers are a perfectly suitable use-case for serving static sites. You get isolation and versioning at the absolutely negligible cost of duplicating a binary (the webserver - which in case of the one I linked in my comment, it's 5MB of space). Also, you get autostart of the server if you use compose, which is equivalent to what you would do with a Systemd unit, I suppose.

You can then use a reverse-proxy to simply route to the different containers.

[–] [email protected] 2 points 8 months ago (1 children)

But it you already have an nginx or other web server otherwise required to start up (which is in all likelihood the case), you don't need any more auto startup, the "reverse proxy" already started can just serve it. I would say that container orchestration versioning can be helpful in some scenarios, but a simple git repository for a static website is way more useful since it's got the right tooling to annotate changes very specifically on demand.

That reverse proxy is ultimately also a static file server. There's really no value in spinning up more web servers for a strictly static site.

Folks have gone overboard assuming docker or similar should wrap every little thing. It sometimes adds complexity without making anything simpler. It can simplify some scenarios, but adding a static site to a webserver is not a scenario that enjoys any benefit.

[–] [email protected] 1 points 8 months ago

It really depends, if your setup is docker based (as OP's seems to be), adding something outside is not a good solution. I am talking for example about traefik or caddy with docker plugin.

By versioning I meant that when you do a push to master, you can have a release which produces a new image. This makes it IMHO simpler than having just git and local files.

I really don't see the complexity added, I do gain isolation (sure, static sites have tiny attack surfaces), easy portability (if I want to move machine it's one command), neat organization (no local fs paths to manage essentially), and the overhead is a 3 lines Dockerfile and a couple of MB needed to duplicate a webserver binary. Of course it is a matter of preference, but I don't see the cons honestly.

[–] [email protected] 1 points 8 months ago* (last edited 8 months ago) (1 children)

Serving static app in Caddy:

sudo apt install caddy
sudo systemctl enable --now caddy

Then in /etc/caddy/Caddyfile:

example.com {
   root * /var/www/html
   file_server
}

That's all, really.

[–] [email protected] 1 points 8 months ago

If there is already another reverse proxy, doing this IMHO is worse than just running a container and adding one more rule in the proxy (if needed, with traefik it's not for example). I also build all my servers with IaC and a repeatable setup, so installing stuff manually breaks the model (I want to be able to migrate server with minimal manual action, as I had to do it already twice...).

The job is simple either way, I would say it mostly depends on which ecosystem someone is buying into and what secondary requirements one has.