scanservjs VS traefik

My solution to use my workforce with paperless is scanservjs and scantopl and I'm pretty happy with it

I use scanservjs and scantopl on docker.

Recently I stumbled upon ScanServerJs, an awesome software that allows you to setup your own scan server.

Nothing to do with VueScan, but I just went through a journey trying to find a good solution for an old HP laserjet/scanner combo that I picked up used for $40. Although it's not wifi enabled, and has no Mac support (that I need for a couple of laptops in my household), I got it running perfectly on a Raspberry Pi, despite some difficulties with the HP driver "ecosystem". (Why do they make it so complicated..)

Once I got it working, I set up `saned` and was able to scan from my Ubuntu laptop over wifi just fine using `gscan2pdf`, which has a horrible user interface but at least gets the job done. Honestly it was a bit surprising to me to discover how terrible the scanning landscape still is in open source software, but I guess it's just not one of those things that is needed that often so some basic projects that were thrown together a decade ago still kind of work and that's that. I can accept that.

However, I absolutely could not manage to get any kind of "bridge" working for the Mac laptop, which apparently uses a different scanner API called TWAIN, and no amount of messing around with TWAIN/sane bridges worked out. Not to mention that one of the two Macs was a "work" laptop for which it was not allowed to install drivers or system software.

The whole time I was thinking, man, all I want is some web interface where I can log into the RPi and drive the scanner, and download the result, why is that so difficult. Lo and behold I came across this amazing project that solved the whole problem for me: https://github.com/sbs20/scanservjs. I'm not affiliated with it, but I was just so impressed at how well it worked that I feel the need to mention it, and give kudos to the author.

It was even easy to get running, just a single docker command on the RPi and it was up and running. The laptops can connect easily, of course, because it's just a local web server, and you can do multipage scans to PDF, which is really all I wanted. Fantastic bit of OSS, highly recommended if anyone finds themselves in a similar situation. Forget remote protocols and installing drivers, etc., just run this on the Pi and you're in business.

We currently have an HP M1136 MFP connected to CUPS on the local network. It always turns itself off and is never available. People have mostly resorted to walking over with their laptop and connecting via USB. Also there are no good network interfaces to the scanner. We use https://github.com/sbs20/scanservjs to control the scanner but it's too buggy and slow.

I've had an old all-in-one HP USB printer/scanner hooked up to a Raspberry Pi for a few years running CUPS. Network printing has been great via this method. But the scanner portion has sat unused ever since. Until, now.... WHY DID NOBODY TELL ME ABOUT SCANSERVER-JS?! My word this is incredible! It does for scanning what CUPS does for printing, and with a beautiful Web UI.

apparently "traffic" https://github.com/traefik/traefik/issues/795

Pronounced "traffic", Traefik is a modern HTTP reverse proxy and load balancer aimed at making deploying microservices easier. It integrates with your existing infrastructure components such as Docker, Kubernetes, and others, and configures itself automatically and dynamically. The latest version adds lots of new options and enhancements such as adding healthcheck options, support for custom headers, and more. Read the migration guide on how to update to the latest version which is now required due to breaking changes.

> I think etcd is basically a k8s only project now

I hate etcd with the best of them, but etcd is used in a lot more places than just kubernetes:

https://github.com/apache/apisix/blob/master/docs/en/latest/...

https://github.com/traefik/traefik#:~:text=Etcd,

https://github.com/zalando/patroni#patroni-a-template-for-po...

https://github.com/purpleidea/mgmt/tree/0.0.26/etcd (this one shows up on HN quite a bit)

https://github.com/sorintlab/stolon#features

It's actually one of the major reasons I wouldn't touch those projects

However, it's very unlikely that .NET developers will directly expose their Kestrel-based web apps to the internet. Typically, we use other popular web servers like Nginx, Traefik, and Caddy to act as a reverse-proxy in front of Kestrel for various reasons:

Not as good though. Case in point: https://github.com/traefik/traefik/issues/5472#issuecomment-... (that's just from this morning)

I'm speak objectively here. Of course, any built-in auto HTTPS that works (more or less) is better than none. Traefik uses an ACME library that was originally written for Caddy. After the original author left that project, Traefik team started maintaining it. Caddy's users' requirements exceeded what the library was capable of, but unfortunately there was friction in getting it to achieve our requirements. So I ended up writing a new ACME client library in Go and, together with upgrades in CertMagic (Caddy's auto-TLS lib), Caddy has the more flexible, robust, and capable auto-HTTPS functionality.

That is to say, not all auto-HTTPS functionalities are the same.

We'll use Traefik, an open source cloud native gateway that can plug into a Kubernetes cluster. It has the concept of "middleware" that can process API requests before passing them through to a backend. We can configuring a rate limit for all of our API endpoints by matching on the request path:

I did the same question here and here

Sadly there is currently no way of doing so. https://github.com/traefik/traefik/issues/6999