Reloader VS fswatch

You can combine this approach with something like https://github.com/stakater/Reloader to automatically restart pods when a certain secret value changes. So if your static code needs to be rebuilt when certain values change, you can use an init container to run the build on startup.

This is not a cron job? I'm not sure if it helps, but you can have pods do a rolling restart on secret updates: https://github.com/stakater/Reloader that would clear the resources each run, but I'm not entirely clear on what you're looking to achieve.

If you use secrets as Environment Variables you will need to use something to make workloads get the new credentials, if they just loose connection. You can use the Reloader project for that.

Reloader is designed to simplify the process of updating application configurations in Kubernetes. It monitors ConfigMaps and Secrets for changes and triggers rolling upgrades for associated resources such as Deployments, StatefulSets, DaemonSets, and more. Reloader eliminates the need for manual intervention and reduces the risk of errors during the configuration update process.

The go k8s packages are pretty bloated - this may also just be a niche case. If you are looking to get secrets with hot reloading, you might also consider mounting a file or setting env vars and coupling it with this reloading operator: https://github.com/stakater/Reloader

For the auto restart this has been a staple install in all clusters for years for me: https://github.com/stakater/Reloader

If you didn't want to use SOPS, for some reason, you can certainly take advantage of external secrets as another commenter proposed, but you won't be able to accomplish (2) without an external tool adding to the mix, like Reloader: https://github.com/stakater/Reloader – that's because something has to update the HelmRelease in order to trigger it to upgrade. (You could just wait for the reconciler to come along, but the tendency is to set the polling interval longer than the default, so Helm won't be re-trying as often, in case something goes wrong...)

You can install https://github.com/stakater/Reloader And then it's just matter of a single annotation and it restarts automatically when there are changes.

Or even better, fswatch (https://github.com/emcrisostomo/fswatch) which works on Linux, BSDs, macOS, Windows, and even Solaris

If you don’t mind shell shell scripting you can use something like fswatch and some shell logic to do something similar.

Well, I am not too lazy to search but I was interested in your experience, especially with reliability.

This one looks interesting: https://github.com/emcrisostomo/fswatch

What about using https://github.com/emcrisostomo/fswatch ?

The required kernel hooks exist in pretty much any common OS these days, it is a user-space tool that is sometimes missing.

It may not be installed by default, but inotifywait is available in common Linux distributions, usually in a package called something like ionotify-tools, and has been for over a decade-ana-half IIRC. It'll work under WSL on Windows too, though only for ext4 devices not bits of the Windows filesystem made available to Linux.

I can't speak to what other OSs include by default, but as every major OS has a different API for defining how to register a lister and how it gets messages no built-in tool is going to be cross platform. There are third party tools which present more cross-platform consistency, most notably https://github.com/emcrisostomo/fswatch#readme (also available in common Linux distros, just an apt install away in Debian for instance).

fswatch is a cross-platform file change monitor. It will watch any files you specify, then run a script on change.

You can do this without polling using a util like fswatch: https://github.com/emcrisostomo/fswatch

> It watches source files, and regenerates the OpenSCAD files automatically

inotify() is awesome. Here's a library in python that does it.

https://michaelcho.me/article/using-pythons-watchdog-to-moni...

There's also inotifywatch on linux and fswatch on mac. I'm sure there's alternatives for BSD Unix and Windows, but I care the least about those OS's.

https://github.com/emcrisostomo/fswatch

For development it's easy to just ParseFiles before every Execute to be sure you have the latest version. But for production something else is needed, fx watch for changes in files and have this trigger a reload (fx using https://github.com/emcrisostomo/fswatch).