The Apache Software Foundation has released Apache Brooklyn 1.0, a production-level release of the open source framework for modeling, monitoring, and managing applications deployed on-premises or in the cloud.
Brooklyn uses YAML blueprints to describe an application and its components. These blueprints, which incorporate policies to manage an application, can be treated as modular components that can be composed and reused in many ways.
Brooklyn blueprints react to inputs such as application health or system load and take action such as growing a cluster or replacing nodes. A blueprint can be extended via Java, with users able to create new entities, policies, and “effector” operations using Java or JVM bridges.