Learning Apache Karaf

## In Detail

Apache Karaf is more than just an OSGi-based runtime container; it’s an ecosystem of open source technologies that makes operating and managing applications easier. Karaf supports hot deployment of OSGi bundles by monitoring jar files inside the [home]/deploy directory. Each time a jar is copied in this folder, it will be installed inside the runtime. You can then update or delete it, and changes will be handled automatically. In addition, Karaf also supports exploded bundles and custom deployers.

Learning Apache Karaf will introduce developers and administrators alike to the OSGi-based container, and impart best practices by example. The book shows you how to set up an Apache Karaf distribution, and how to arrive at a production-ready deployment. Learning Apache Karaf teaches you everything you need to install, configure, and administer Apache Karaf.

Learning Apache Karaf will help guide you through the complexity of an OSGi container using sample code and configuration snippets to demonstrate the important aspects of managing and running a Karaf instance.

Learning to install and command the runtime is just the beginning; deploying and provisioning applications is just as important to the successful implementation of a stable and scalable architecture. You will discover how to monitor runtime environments using remote access, logging, and JMX, and you will also develop production-level architectures with high availability and security.

The book is a fast-paced guide full of step-by-step instructions covering all aspects of application development using Apache Karaf.

## Who this book is for

Learning Apache Karaf will benefit all Java developers and system administrators who need to develop for and/or operate Karaf’s OSGi-based runtime. Basic knowledge of Java is assumed.

### Über den Autor und weitere Mitwirkende

**Johan Edstrom**

Johan Edstrom is an open source software evangelist, Apache developer, and seasoned architect; he has created Java architectures for large, scalable, hightransaction monitoring, financial, and open source systems.

Johan is, by training, an electronics engineer with a penchant for fractal geometry.

He has worked as development lead, infrastructure manager, IT lead, and programmer and has guided several large companies to success in the use of open source software components. Lately, he has been helping some of the world's largest networking companies and medical startups achieve high availability and scalability and dynamically adapt SOA systems.

Johan divides his time between writing software, mentoring development teams, and teaching people how to use Apache ServiceMix, Camel, CXF, and ActiveMQ effectively and scalable to enterprise installations.

He is the co-author of the book Instant OSGi Starter, Packt Publishing.

Johan is a committer on Apache Camel and Apache ServiceMix and is a PMC member for Apache Camel.

**Jamie Goodyear**

Jamie Goodyear is an open source advocate, Apache developer, and computer systems analyst with Savoir Technologies; he has designed, critiqued, and supported architectures for large organizations worldwide.

Jamie holds a Bachelor of Science degree in Computer Science from Memorial University of Newfoundland.

Jamie has worked in systems administration, software quality assurance, and senior software developer roles for businesses ranging from small startups to international corporations. He has attained committer status on Apache Karaf, ServiceMix, and Felix and is a Project Management Committee member on Apache Karaf. His first print publication was Instant OSGi Starter, Packt Publishing, which he co-authored with Johan Edstrom.

Currently, he divides his time between providing high-level reviews of architectures, mentoring developers and administrators on SOA deployments, and helping to grow the Apache community.

**Heath Kesler**

Heath Kesler is an Apache developer and committer and has spoken at conferences around the world. He is a Senior SOA Architect with Savoir Technologies and has architected and developed scalable, highly available SOA systems for large corporations around the globe.

Heath currently helps corporations implement and develop enterprise integration systems using messaging and web services with a focus on maintainability and scalability. He gives training classes on complex concepts and frameworks that provide functionality to large-scale enterprise solutions. He has bootstrapped development on mission-critical systems for several Fortune 500 companies.

Heath has reached committer status on Apache Karaf and has been a contributor to Camel. He received a Bachelor of Science degree from DeVry University after his tour in the army.