Cryostat 4.0 Release
Andrew Azores
Hello everyone,
We are pleased to announce the release of Cryostat 4.0!
What’s new in 4.0?
Cryostat Agent
Init container: container-based distribution of the Cryostat agent that removes the need for downloading the agent JAR file from the Red Hat Maven repository.
Automatic configuration:
Previously, users needed to manually configure an Agent JAR file for each workload application. The Cryostat Operator is now able to mount a volume containing the agent JAR file through a simple label update in the application pod template.
Additional application pod configuration: Users have several configuration options available through label annotation. Users can specify containers to be used with the agent, configure agent read-only or write access to pods and much more.
Preset event templates
JFR support for Quarkus events: support added for the creation of JFR recordings based on Quarkus-specific framework-level events.
JFR support for Hibernate events: support added for the creation of JFR recordings based on Hibernate JFR events.
Dashboard enhancements: The Cryostat web console now includes a Diagnostics card that contains a ‘Start Garbage Collection’ button which instructs Cryostat to perform a manual garbage collection on a target JVM for diagnostic purposes.
Architectural improvements:
Database and storage containers: Database and storage are now decoupled, mitigating potential data loss and enabling seamless upgrades of the Cryostat server.
TLS connections: All HTTP and JDBC connections between Cryostat now use TLS by default, including Agent connections via automatic configuration, for enhanced data security.
TLS keystore password optional: TLS server setup no longer requires a keystore password, simplifying the automatic configuration of the Cryostat agent.
More details on these feature highlights can be found in our blog.
Where can I get the latest version of Cryostat?
You can install Cryostat using our Kubernetes operator on OperatorHub.io or via a Helm Chart. The 4.0 Helm Chart release will be a bit delayed this time around, so please watch its repository for updates.
Upstream guide
Blogs
We’re always adding new blogs! Stay up to date with us for feature spotlights and more.
Feedback
Our team is very excited to present this update to Cryostat and we look forward to your feedback. Please reach out to the Cryostat group at cryostat-d...@googlegroups.com or create a discussion in GitHub with any questions or comments.
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