Understanding Quarkus Quarkus Antonio Goncalves 2020-10-27 Table of Contents Foreword . 3 About the Author . 5 Acknowledgments . 6 Introduction. 8 Where Does This Fascicle Come From? . 8 Who Is This Fascicle For? . 9 How Is This Fascicle Structured? . 9 Conventions. 10 The Sample Application . 11 Downloading and Running the Code. 13 Getting Help. 13 Contacting the Author. 13 1. First Step with Quarkus . 15 2. Understanding Quarkus . 17 2.1. Understanding Microservices . 17 2.1.1. Monolith . 17 2.1.2. Microservices. 18 2.1.3. Pros and Cons. 20 2.2. Understanding Reactive . 20 2.2.1. Reactive Manifesto . 21 2.2.2. Reactive Systems . 22 2.2.3. Reactive Streams. 22 2.3. Understanding MicroProfile . 24 2.3.1. Eclipse Foundation . 24 2.3.2. SmallRye . 24 2.3.3. MicroProfile Specifications. 25 CDI . 25 JAX-RS . 26 JSON-B . 26 JSON-P . 26 Common Annotations . 26 Configuration . 26 Fault Tolerance . 27 Health. 27 Metrics . 27 OpenAPI . 27 REST Client . 27 JWT . 28 OpenTracing. 28 2.3.4. Standalone Releases . 28 Context Propagation. 28 Reactive Messaging. 28 Mutiny . 28 2.4. Understanding Cloud Native Computing . 29 2.4.1. Docker . 29 2.4.2. Kubernetes . 31 2.5. Understanding GraalVM . 32 2.5.1. Architecture . 32 2.5.2. A Brief History of GraalVM. 34 2.5.3. Mandrel. 34 2.6. Quarkus Overview . ..