New Java microservices book (#3515)

free-programming-books.md

@@ -1500,6 +1500,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Object Oriented Programming using Java](https://bookboon.com/en/object-oriented-programming-using-java-ebook) - Simon Kendal (PDF) , Bookboon. (email address *requested*, not required)
 * [OOP - Learn Object Oriented Thinking & Programming](http://pub.bruckner.cz/titles/oop) - Rudolf Pecinovsky (PDF)
 * [Open Data Structures (in Java)](http://opendatastructures.org/ods-java.pdf) - Pat Morin (PDF)
+* [Playing with Java Microservices on Kubernetes and OpenShift](https://leanpub.com/playing-with-java-microservices-on-k8s-and-ocp) - Nebrass Lamouchi *(Leanpub account or valid email requested)*
 * [Processing XML with Java (A Guide to SAX, DOM, JDOM, JAXP, and TrAX) (2002)](http://www.cafeconleche.org/books/xmljava/) - Elliotte Rusty Harold
 * [The ABC of PDF with iText: PDF Syntax essentials](https://leanpub.com/itext_pdfabc) - Bruno Lowagie  *(Leanpub account or valid email requested)*
 * [The Java EE6 Tutorial](https://docs.oracle.com/javaee/6/tutorial/doc/javaeetutorial6.pdf) (PDF)