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JavaOne 2015: Scalable Continous Deployment with Maven
The document discusses the implementation of scalable continuous deployment using Maven, describing key concepts such as continuous integration and deployment, along with automation of analysis and visualization from CI systems. It also outlines a practical approach for managing dependencies and mitigating unnecessary rebuilds in large applications. The author emphasizes the challenges of scaling deployments and suggests that effective build data usage can inform application architecture improvements.
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JavaOne 2015: Scalable Continous Deployment with Maven
- 1. Scalable Continuous Deployment withMaven fromfragiletoagile.com @AbrahamMarin
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- 6. Table of Contents •Continuous Deployment with Maven • Scaling Continuous Deployment • Analyse Data from the CI System • Automate Analysis and Visualisation @AbrahamMarin
- 7. Table of Contents •Continuous Deployment with Maven • Scaling Continuous Deployment • Analyse Data from the CI System • Automate Analysis and Visualisation @AbrahamMarin
- 8. What is ContinuousDeployment? Continuous Integration: check everything is still working after every commit • • Continuous Deployment: every successful commit turns into a release • @AbrahamMarin
- 9. Why maven? • Justbecause… @AbrahamMarin
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- 11. To Caesar whatis Caesar’s Based on John Ferguson Smart’s “Real-World Strategies for Continuous Delivery with maven and Jenkins” http://youtu.be/McTZtyb9M38 @AbrahamMarin
- 12. John’s approach Maven wasn’tbuilt for Continuous Deployment commit commit commit ... 0.0.1-SNAPSHOT Release! 0.0.1 @AbrahamMarin
- 13. John’s approach Don’t useRELEASE plugin Use VERSIONS plugin Set version to <version scheme>.<build number> Run mvn deploy Commit pom file to repository @AbrahamMarin
- 14. John’s approach Set versionto <version scheme>.<build number> mvn versions:set –DnewVersion=**your version** @AbrahamMarin
- 15. John’s approach Run mvndeploy mvn clean deploy @AbrahamMarin
- 16. John’s approach Commit pomfile to repository <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-scm-plugin</artifactId> <version>1.9.1</version> <executions> <execution> <id>commit</id> <phase>deploy</phase> <goals> <goal>checkin</goal> </goals> </execution> </executions> </plugin> @AbrahamMarin
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- 19. Table of Contents •Continuous Deployment with Maven • Scaling Continuous Deployment • Analyse Data from the CI System • Automate Analysis and Visualisation @AbrahamMarin
- 20. How do youscale this? @AbrahamMarin
- 21. SUPER APP # Files: 75 #Tests: 800 Build Time: 4 min Output: superapp.war @AbrahamMarin
- 22. SUPER APP # Files: 113 #Tests: 1200 Build Time: 6 min Output: superapp.war @AbrahamMarin
- 23. SUPER APP # Files: 169 #Tests: 1800 Build Time: 9 min Output: superapp.war @AbrahamMarin
- 24. When Builds GetToo Big @AbrahamMarin "MAN Atlante fronte 1040572" by Lalupa - Own work. Licensed under GFDL via Commons - https://commons.wikimedia.org/wiki/File:MAN_Atlante_fronte_1040572.JPG#/media/File:MAN_Atlante_fronte_1040572.JPG
- 25. SUPER APP # Files: 169 #Tests: 1800 Build Time: 9 min Output: superapp.war APP BACKEND SUPER APP # Files: 115 # Tests: 1200 Build Time: 6 min Output: superapp.war # Files: 72 # Tests: 800 Build Time: 4 min Output: appbackend.jar @AbrahamMarin
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- 30. Setting up dependencies APP BACKEND SUPER APP appbackend.jarsuperapp.war @AbrahamMarin
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- 32. Rebuilding old versions Using“LATEST” makes it impossible to build old versions correctly @AbrahamMarin
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- 34. Update versions ofdependencies mvn versions:use-latest-releases @AbrahamMarin
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- 42. I Can Help @AbrahamMarin
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- 49. Problem: Unnecessary rebuilds Getlast committer buildAgent? Proceed normally Don’t run build NO YES touch skip_build @AbrahamMarin
- 50. Problem: Unnecessary rebuilds <profiles> <!--Plugins that need to be disabled when doing a no-run --> <profile> <id>do.nothing</id> <activation> <file> <exists>skip_build</exists> </file> </activation> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <skipMain>true</skipMain> <skip>true</skip> </configuration> </plugin> @AbrahamMarin
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- 55. Get last committer buildAgent? Proceed normally Don’t run build NOYES Problem: Necessary rebuilds @AbrahamMarin
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- 57. Get last committer buildAgent? Proceed normally NO YES Check dependencies Upto date? NO Don’t run build YES touch skip_build @AbrahamMarin
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- 60. Get last committer buildAgent? Proceed normally NO YES Check dependencies Upto date? NO Don’t run build YES touch skip_build @AbrahamMarin
- 61. Get last committer buildAgent? Check pom.xml NO YES Check dependencies Upto date? NO Don’t run build YES touch skip_build Up to date? NO Proceed normally YES @AbrahamMarin
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- 64. Table of Contents •Continuous Deployment with Maven • Scaling Continuous Deployment • Analyse Data from the CI System • Automate Analysis and Visualisation @AbrahamMarin
- 65. A real casescenario @AbrahamMarin
- 66. WAR file WAR file WARfile Parent POM Logging @AbrahamMarin
- 67. WAR file WAR file WARfile Parent POM Logging 28% @AbrahamMarin
- 68. WAR file WAR file WARfile Parent POM Logging 28% 28% 28% @AbrahamMarin
- 69. WAR file WAR file WARfile Parent POM Logging 28% 28% 28% 20% @AbrahamMarin
- 70. WAR file WAR file WARfile Parent POM Logging 48% 28% 28% 20% @AbrahamMarin
- 71. WAR file WAR file WARfile Parent POM Logging @AbrahamMarin
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- 74. Table of Contents •Continuous Deployment with Maven • Scaling Continuous Deployment • Analyse Data from the CI System • Automate Analysis and Visualisation @AbrahamMarin
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- 77. Automating Build Analysis •Most CI systems provide an API • Calculations aren’t complex • Multiple graphical tools available @AbrahamMarin
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- 79. Automating Build Analysis •Add colour and size • Add support for other CI systems • Show subset of builds • Update data automatically (for build displays) • Anything else you may find useful! @AbrahamMarin
- 80. Summary • Setting upContinuous Deployment is possible • Scaling is challenging, but also possible • Build data can help you shape the architecture of your application • Still plenty to improve, please join me @AbrahamMarin
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