DevConf.cz 2021

Narayana could be known as JTA transaction manager used in WildFly and Quarkus app engines.
But this is not the only capability that Narayana offers. This talk shows the variety of transaction processing abilities
that the Narayana library offers. You can expect to learn a bit details on the JTA processing, brief touch on JTS,
example of XTS, RTS, STM and LRA.
Sources for the session is at github at https://github.com/ochaloup/devconf2021-narayana-journey

The Automatic Certificate Management Environment (ACME) protocol makes it possible to obtain certificates from a certificate authority instantaneously without any human intervention. Developed and used by Let's Encrypt, a free and open-source certificate authority, this protocol has greatly simplified the once complex process for obtaining and managing server certificates. Since this protocol became an IETF standard a little over a year ago, more certificate authorities are now looking to implement this protocol. In this session, we'll first give an introduction to the ACME protocol and how it works. Then, we'll take a look at a Java ACME client that has been integrated in the WildFly application server and we'll demonstrate how to easily obtain and manage server certificates for WildFly from Let's Encrypt or any certificate authority that implements the ACME protocol. By the end of the session, you will understand the benefits of the ACME protocol and will never need to worry about forgetting to renew your server's certificate ever again.

Infinispan Client Quarkus allows you to write your enterprise apps as you have done in the past with Hibernate/JAX-RS, but also to compile these applications to a Graal-VM native image. Running in a native image allows for the application to be started up in mere milliseconds, depending upon the app, all while using much less memory.
Topics to be covered in session:
1. Infinispan features that are being used:
Create stores dynamically
Simple get/put operations
Full-text query
Continuous query
2. Quarkus features:
REST web-service
Application properties
Application life cycle events listeners