SpringOne Platform 2016 Speaker: Ben Hale; Cloud Foundry Java Lead, Pivotal. Over the years, the Java Experience team has worked hard to ensure that Cloud Foundry was the best place to run Java applications in the cloud. As that support has matured we’ve turned our attention to the developer experience. In this session, you’ll hear from the lead developer of the buildpack about the new support for JMX access, debugging, and profiling. Rounding out this session will be a short tour of other production features added recently.

1. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Java Buildpack
Developer Enhancements
Ben Hale
@nebhale

2. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Cloud Foundry – The Best Place to Run Java
• Over the last couple of years, the team has pushed very
hard to be the best place to run Java applications
• These efforts have focused on production workloads
• 8 JVM application types
• 5 Application Performance Monitor providers
• Hardware Security Modules
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3. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Production is Not Development
• The focus on production is because the experience of
developing inside a container isn’t great
• However, there are times when you just need to see
what’s going on inside the container
• The core ideas isolation and immutable infrastructure
are at odds with container access
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4. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
JMX, Debugging, and Profiling
• Cloud Foundry provides first-class support for JMX,
Debugging, and the YourKit Profiler
• Based on the new(-ish) Cloud Foundry SSH container
access
• Requires Pivotal Cloud Foundry 1.6+, Java Buildpack
3.4+
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5. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
SSH Container Access

6. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
JMX
• Supports JConsole or VisualVM
• Configuration
• Enabled/Disabled
• Port
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7. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
JMX
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$ cf set-env java-main-application JBP_CONFIG_JMX
’{enabled: true}'
...
$ cf restage java-main-application
...
$ cf ssh -N -T -L 5000:localhost:5000 java-main-
application

8. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
JMX

9. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Debug
• Supports all IDE debuggers
• Configuration
• Enabled/Disabled
• Port
• Suspend on Start
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10. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Debug
10
$ cf set-env java-main-application JBP_CONFIG_DEBUG
’{enabled: true}'
...
$ cf restage java-main-application
...
$ cf ssh -N -T -L 8000:localhost:8000 java-main-
application

11. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Debug

12. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
YourKit Profiler
• Supports many versions of the YourKit Profiler
• If you have prefer something else, let me know
• Configuration
• Session Name
• Enabled/Disabled
• Port
• Version
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13. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
YourKit Profiler
13
$ cf set-env java-main-application JBP_CONFIG_YOUR_KIT_PROFILER
’{enabled: true}'
...
$ cf restage java-main-application
...
$ cf ssh -N -T -L 10001:localhost:10001 java-main-application

14. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
YourKit Profiler

15. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Developer Enhancements
• Based on Cloud Foundry SSH access
• Currently comprised of JMX, Debug, and the YourKit
Profiler
• We’re not done yet
• Let us know what tools you’d like to use in Cloud
Foundry
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16. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Learn More. Stay Connected.
https://github.com/nebhale/java-buildpack
@springcentral
spring.io/blog
@pivotal
pivotal.io/blog
@pivotalcf
http://engineering.pivotal.io