Groovy in the Cloud
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Slides from my UberConf 2016 talk, "Groovy in the Cloud"
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Groovy in the Cloud
- 1. Groovy in the Cloud Dan Woods @danveloper Code: h(ps://github.com/danveloper/groovy-in-the-cloud
- 2. Senior So(ware Engineer Working on Cloud & DevOps Tooling
- 3. Wrote some of this while at Ne0lix h"ps://spinnaker.io
- 5. Support your community. All royal(es for Learning Ratpack go directly to Gr8Ladies h"p://gr8ladies.org
- 6. How does Groovy fit in the cloud?
- 7. Groovy is present at every layer of your project's lifecycle.
- 8. Microservices: Groovy community has a lot to offer.
- 9. Build and packaging: Gradle is the best, most flexible build tool.
- 10. Automa'ng and ensuring builds: Groovy + Jenkins = !.
- 12. Automa'ng server tasks: Groovy scripts + sshoogr!
- 13. At the end of the day, Groovy is Java, so anything Java can do, Groovy can do -- and simpler!
- 14. Groovy can act in mu.ple roles: as a powerful, dynamic scrip.ng tool or as a fully compiled programming language.
- 15. Groovy can also be sta/cally compiled!
- 16. Agenda • Groovy microservices with Ratpack • Immutable infrastructure • Gradle OS Package Plugin • Gradle + Docker • sshoogr • Jenkins Job DSL • Spinnaker
- 17. Microservices with Groovy and Ratpack @Grab('io.ratpack:ratpack-groovy:1.4.0-rc-1') import static ratpack.groovy.Groovy.ratpack import static ratpack.jackson.Jackson.json ratpack { handlers { get { render(json([message: "Hello World!"])) } } }
- 18. Immutable Infrastructure The process by which a new server image is created for every new version of your code.
- 20. Gradle OS Package Plugin buildscript { repositories { jcenter() maven { url "https://plugins.gradle.org/m2/" } } dependencies { classpath 'io.ratpack:ratpack-gradle:1.4.0-rc-1' classpath 'gradle.plugin.com.netflix.nebula:gradle-ospackage-plugin:3.6.1' } } apply plugin: 'io.ratpack.ratpack-groovy' apply plugin: 'nebula.ospackage' version = "1.0.0" repositories { jcenter() } ospackage { // ... } buildDeb { // ... }
- 21. Gradle OS Package Plugin ospackage { packageName = "myapp" release '3' into "/opt/myapp" from "${project.buildDir}/install/${project.applicationName}" from("osfiles") { into "/" } } buildDeb { dependsOn installDist //requires("nginx") //requires("mysql-client") preInstall file("scripts/preInstall.sh") postInstall file("scripts/postInstall.sh") }
- 22. Gradle Docker Plugin buildscript { repositories { jcenter() } dependencies { classpath 'io.ratpack:ratpack-gradle:1.4.0-rc-1' classpath 'com.bmuschko:gradle-docker-plugin:3.0.1' } } apply plugin: 'io.ratpack.ratpack-groovy' apply plugin: 'com.bmuschko.docker-remote-api' apply plugin: 'com.bmuschko.docker-java-application' version = "1.0.0" repositories { jcenter() } docker { javaApplication { maintainer = 'Dan Woods "daniel.p.woods@gmail.com"' } }
- 23. Gradle Docker Plugin - Build Image $ ./gradlew dockerBuildImage :compileJava UP-TO-DATE :compileGroovy UP-TO-DATE :processResources UP-TO-DATE :classes UP-TO-DATE :jar UP-TO-DATE :startScripts UP-TO-DATE :distTar UP-TO-DATE :dockerCopyDistResources UP-TO-DATE :dockerDistTar :dockerBuildImage Building image using context '/Users/danw/Documents/uberconf-2016/groovy-cloud-code/docker-plugin/build/docker'. Using tag 'docker-plugin:1.0.0' for image. Step 1 : FROM java ---> 264282a59a95 Step 2 : MAINTAINER Dan Woods "daniel.p.woods@gmail.com" ---> Using cache ---> 46c65408f762 Step 3 : ADD docker-plugin-1.0.0.tar / ---> Using cache ---> 41dc34567fae Step 4 : ENTRYPOINT /docker-plugin-1.0.0/bin/docker-plugin ---> Using cache ---> fad9ba971b19 Step 5 : EXPOSE 5050 ---> Running in 0bd76fcb5e15 ---> 43b2d30640e2 Removing intermediate container 0bd76fcb5e15 Successfully built 43b2d30640e2 Created image with ID '43b2d30640e2'. BUILD SUCCESSFUL Total time: 10.974 secs
- 24. Serverless Compu-ng No persistent server, quick func2ons that do one single thing very well
- 25. Serverless is a great choice for super lightweight microservices that ingest some data, process it, and respond quickly.
- 28. sshoogr @Grab('com.aestasit.infrastructure.sshoogr:sshoogr:0.9.25') import com.aestasit.infrastructure.ssh.dsl.* import com.aestasit.infrastructure.ssh.* def engine = new SshDslEngine(new SshOptions(defaultKeyFile: new File("/Users/danw/Downloads/uberconf.pem"), trustUnknownHosts: true)) engine.remoteSession('ubuntu@xxx:22') { exec 'rm -rf /tmp/key*' remoteFile('/tmp/key.foo').text = "mySecretKey=123456" }
- 29. sshoogr Demo
- 31. Provides a means to describe your Jenkins Jobs
- 32. Allows your build configura2ons to be under source control
- 33. Ensures that if your Jenkins CI system crashes, you can quickly and safely recover
- 34. Wri$en in Groovy, so you can do any programma5c processing you want when configuring your builds!
- 35. Jenkins Job DSL def gitUrl = 'git://github.com/myorg/myapp.git' def allowedUsers = ['dan', 'ben', 'ernest'] job('PROJ-build') { scm { git(gitUrl) } // no trigger authorization { allowedUsers.each { user -> permission('hudson.model.Item.Build', user) } } steps { shell('gradlew clean build') } }
- 36. Spinnaker
- 37. Con$nuous delivery/deployment pla4orm from Ne4lix
- 38. Wri$en in Groovy with Spring Boot
- 39. Highly extensible pla0orm for managing your cloud footprint
- 42. Easy to build plugins and adjust na1ve func1onality by incorpora1ng Groovy modules
- 43. Ques%ons?