archaius VS microprofile-config

2. A realtime, reliable Dynamic Configuration system that gives you interactive, real-time, fine-grained control over operations of your deployed systems.

The core technology is this dynamic configuration system, similar in behavior to Netflix's [https://github.com/Netflix/archaius](https://github.com/Netf..., Amplitude's DynConf [https://amplitude.com/blog/dynamic-configuration](https://am... or HubSpot's conspicuously well-named "Config" [https://product.hubspot.com/blog/backend-tooling](https://pr.... Client libraries bootstrap off a CDN and then start an SSE connection to get updates.

We'd love for you to take Prefab for a spin and share your thoughts. Full support for these logging features in Java & Ruby today. Python/Node/Elixir are in alpha zone and we would love to work with you on their development. See it in action: [https://youtu.be/8AsEJF-NwAQ](https://youtu.be/8AsEJF-NwAQ)

We're so excited to share what we've built. We started Prefab because we think there is too much great, general-purpose tech that's locked away in large orgs. Just because I no longer have a team of 50 developer platform engineers on my side, doesn’t mean I don't want the fruits of their labor.

If you've used dynamic configuration or dynamic log levels before I'd love if you would share your experiences and favorite use cases here.

- Jeff & Prefab

While you covered a lot of libraries, there are others, more or less used: - https://github.com/constretto/constretto-core - https://github.com/Netflix/archaius - https://github.com/IvanTrendafilov/Confucius - https://commons.apache.org/proper/commons-configuration/ - https://github.com/brianm/config-magic - https://github.com/Graylog2/JadConfig - https://github.com/carueda/tscfg

Finally I was hoping Netflix would get its act together sooner on Archaius (N.B. that link is the 2.x branch which most things do not use). However Archaius logging library uses SLF4J.

There are a lot of great config libraries, you should also take a look at such as smallrye-config. I am trying to make my library compatible with microprofile-config but there are some fundamental differences.

You might have a look at MicroProfile Config as well.

Now you might be tempted to say well we just need a System.getProperties replacement. A SLF4J of properties config. Perhaps one that uses the ServiceLoader. And indeed microprofile config somewhat solves that problem. The problem is of course is backward compatibility (replacing all the old libraries uses of system properties of which you might not be able to) and of course that config facade adds a dependency.

Quarkus is internally using the SmallRye implementation of Eclipse MicroProfile Config (MP-Config). MP-Config allows to add so called Configuration Sources, that allow to supply config objects in a programmable way from e.g. a file in a strange format or perhaps even from a central repository. This brief post describes how to create a ConfigSource for Quarkus that knows about existing properties