Docker in der Java-Entwicklung

Talk at First Docker@Dresden-Meetup 2015-11-19

Transcript

1. Docker in der Java-Entwicklung Docker@Dresden-Meetup 19.11.2015 Bernd Fischer
2. Who’s that guy? Passionate Java Developer (especially Spring) Agile and Devops infected Docker enthusiast berndfischer63@gmail.com @berndfischer63 JUG Saxony e.V., Docker Meetup Dresden CTO MindApproach GmbH, Dresden bfischer@mindapproach.de
3. Who’s that guy? You build it you run it Werner Vogels, CTO Amazon, 2006 [Gra01]
4. Who’s that guy? DevOps Andrew Clay Shafer, Patrick Debois, Agile Conference 2008 DevOpsDays Ghent 2009
5. Who’s that guy? Automate almost everything Continuous Delivery, 2010 [HuFa01]
6. Agenda Docker@Dresden-Meetup What is Docker? Dockerize a Java Web Application in “x” steps Leassons learned
7. Docker@Dresden-Meetup
8. Docker@Dresden-Meetup Networking-Platform Community
9. What is Docker
10. What is Docker? Virtualization Virtual Machine Hypervisor / Host OS Physical Server Physical Server Host OS App A App B Libs Libs Guest OS Virtual Hardware / BIOS Docker Engine Container (Process) App A Libs Container App A Libs Container VirtualMachine
11. What is Docker? Used Technologies Docker Libcontainer Namespaces Control Groups Storage Backends Layered/CoW Filesystems Linux Kernel Software Defined Networking
12. What is Docker? Storage Backends read only writable empty after creation many containers can be created based on one image for specific requirements: use volumes https://www.docker.com/sites/default/files/products/what_is_layered_filesystems_sm.png Images and Container
13. What is Docker? Dockerhub Maven Central for Docker ...
14. What is Docker? System Architecture Docker Host (Linux) Docker Client Docker Daemon Container Images Container Container Images Images Socket RESTFul API Docker Client Windows Docker Client Mac OS V Docker Client
15. What is Docker? Docker Project Family • Docker-Engine (CLI + Daemon) • Docker-Machine • Docker-Compose • (Docker-Swarm) • (Docker-Distribution) • (Docker-Toolbox) • (Docker Notary based on TUF) • (Docker-Bench-Security)
16. What is Docker? Development Environment Virtual Machine (Linux) Images Container Mac OS X Windows /Users /Users Docker Client Docker Daemon
17. What is Docker? Summary • Process-Virtualization ◦ OS-/Architecture-Specific • Layered-Filesystem (Images/Container) • Public/Private Registries (Dockerhub) • Project-Family ◦ batteries included ◦ but replaceable
18. Dockerize a Java Web Application
19. Dockerize a Java Web App Starting Point Linux (Ubuntu 14.04.3-LTS) java -jar ... url username password JVM Demo-Application Spring Boot Web embedded Tomcat Database
20. Dockerize a Java Web App Starting Point DEMO
21. Dockerize a Java Web App MySql - Local Installation
22. Dockerize a Java Web App MySql - Local Installation
23. Dockerize a Java Web App MySql - local Installation
24. Dockerize a Java Web App MySql - Container
25. Dockerize a Java Web App MySql - Container Docker Machine docker-machine \ create \ --driver=virtualbox \ dev
26. Dockerize a Java Web App MySql - Container DEMO
27. Dockerize a Java Web App MySql - Container Docker Compose # s01-docker-compose.yaml mysql: image: mysql:5.6.26 expose: - "3306" ports: - "3306:3306" environment: - MYSQL_ROOT_PASSWORD=9876 - MYSQL_USER=test - MYSQL_PASSWORD=1234 - MYSQL_DATABASE=test
28. Dockerize a Java Web App MySql - Container DEMO
29. Dockerize a Java Web App Java - Container # s02-docker-compose.yaml (snippet) app: image: java:8 ports: - "8080:8080" environment: - SPRING_PROFILES_ACTIVE=initdb working_dir: /opt/demo-helloworld-web links: - mysql:mysql entrypoint: [ "java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/opt/demo-helloworld-web/demo-helloworld-web-1.0-Local.jar" ] volumes: - ../../../target:/opt/demo-helloworld-web:ro
30. Dockerize a Java Web App Java - Container DEMO
31. Dockerize a Java Web App Unpacked Fat-Jar # maven -PunzipFatJar # unzip target/demo-helloworld-web-1.0-Local.jar \ -d target/app # s03-docker-compose.yaml (snippet) app: # ... volumes: - ../../../target/app/META-INF:/opt/.../META-INF:ro - ../../../target/classes/de:/opt/.../de:ro - ../../../target/app/lib:/opt/.../lib:ro - ../../../target/app/org:/opt/.../org:ro - ../../../target/classes/static:/opt/.../static:ro - ../../../target/classes/templates:/opt/.../templates:ro - ../../../target/classes/application.yml:/opt/.../application.yml:ro - ../../../target/classes/logback.xml:/opt/.../logback.xml:ro
32. Dockerize a Java Web App Unpacked Fat-Jar DEMO
33. Dockerize a Java Web App Docker Image by Foot # Dockerfile FROM java:8 MAINTAINER Bernd Fischer "bfischer@mindapproach.de" ENV MODIFIED_AT 2015-09-26_1845 COPY demo-helloworld-web.jar /opt/demo-helloworld-web/ # mvn -PbuildDockerWorkDir # copy Dockerfile and “Fat-Jar” in same dir # should be called from project root dir docker build -t mapp/demo-helloworld-web04:latest \ -f $(pwd)/target/workdir-docker/Dockerfile \ $(pwd)/target/workdir-docker
34. Dockerize a Java Web App Docker Image by Foot # s04-docker-compose.yaml (snippet) app: image: mapp/demo-helloworld-web04:latest ports: - "8080:8080" environment: - SPRING_PROFILES_ACTIVE=initdb working_dir: /opt/demo-helloworld-web/ links: - mysql:mysql entrypoint: [ "java", "-Djava.security.egd=file:/dev/./urandom", "-jar","/opt/demo-helloworld-web/demo-helloworld-web.jar" ] _________
35. Dockerize a Java Web App Docker Image by Foot DEMO
36. Dockerize a Java Web App Docker Image by Maven (1) # Maven (snippet) <plugin> <groupId>org.jolokia</groupId> <artifactId>docker-maven-plugin</artifactId> <version>0.13.4</version> <configuration> <dockerHost>${env.DOCKER_HOST}</dockerHost> <certPath>${env.DOCKER_CERT_PATH}</certPath> <images> <image> <name>mapp/demo-helloworld-web05</name> ... </image> </images> </configuration> ... </plugin>
37. Dockerize a Java Web App Docker Image by Maven (2) # Maven (snippet) <plugin> <groupId>com.spotify</groupId> <artifactId>docker-maven-plugin</artifactId> <version>0.3.5</version> <configuration> <imageName>mapp/demo-helloworld-web07</imageName> <imageTags> <imageTag>${project.version}</imageTag> </imageTags> <dockerDirectory>${project.basedir}/target/app</dockerDirectory> <forceTags>true</forceTags> </configuration> </plugin>
38. Dockerize a Java Web App Docker Image by Maven # s07-docker-compose.yaml (snippet) app: image: mapp/demo-helloworld-web07:latest ports: - "8080:8080" environment: - SPRING_PROFILES_ACTIVE=initdb working_dir: /opt/demo-helloworld-web/ links: - mysql:mysql entrypoint: [ "java", "-Djava.security.egd=file:/dev/./urandom", "-jar","/opt/demo-helloworld-web/demo-helloworld-web.jar" ]
39. Dockerize a Java Web App Docker Image by Maven DEMO
40. Dockerize a Java Web App Docker Push (Registry) docker tag ... docker login ... docker push ...
41. Dockerize a Java Web App Docker Push by Maven mvn clean package -DskipTests=true \ -PunzipFatJar \ -PbuildDockerImageWithSpotifyAndPushToDockerhub \ -DpushImage=true \ docker:build
42. Dockerize a Java Web App Docker Push by Maven <!-- maven.pom (snippet) --> <profile><id>buildDockerImageWithSpotifyAndPushToDockerhub</id> <build> <plugins><plugin> <groupId>com.spotify</groupId> <artifactId>docker-maven-plugin</artifactId> <version>0.3.5</version> <configuration> <imageName>mapp/demo-helloworld-web07</imageName> <imageTags><imageTag>${project.version}</imageTag></imageTags> <dockerDirectory>${project.basedir}/target/app</dockerDirectory> <forceTags>true</forceTags> <serverId>docker-hub</serverId> </configuration> </plugin></plugins> </build></profile>
43. Dockerize a Java Web App Docker Push by Maven DEMO
44. Dockerize a Java Web App Docker Push (Registry)
45. Dockerize a Java Web App Docker Push (Registry)
46. Dockerize a Java Web App Docker Push (Registry)
47. Dockerize a Java Web App Docker & Jenkins Workflow
48. Dockerize a Java Web App Docker & Jenkins Workflow def internalBuild(){ stage name: "build", concurrency: 1 node{ sh "${mvnHome}/bin/mvn clean" sh "${mvnHome}/bin/mvn pl.project13.maven:git-commit-id-plugin:revision sh "${mvnHome}/bin/mvn package -U -PbuildDockerImageWithMaven" def dcmd = "docker -H \${DOCKER_HOST_STRIPPED} --tlsverify" sh "${dcmd} tag -f \${DOCKER_FORCE_TAGGING} \ mapp/demo-helloworld-web05:${newVersion} \ dockerreg:5000/mapp/demo-helloworld-web05:${newVersion}" sh "${dcmd} push \ \${DOCKER_REGISTRY}/mapp/demo-helloworld-web05:${newVersion}" } }
49. Dockerize a Java Web App Docker & Jenkins Workflow DEMO
50. Dockerize a Java Web App Production - IaaS DEMO - Digital Ocean (online access necessary ;-)
51. Dockerize a Java Web App Production - PaaS GiantSwarm • currently public beta … // swarm.json [snippet] { "name": "demo-helloworld-web05", "components": { "app": { "image": "mapp/demo-helloworld-web05:latest", ... }, "mysql": { "image": "mysql:5.6.26", ... }}}
52. Dockerize a Java Web App Production - PaaS GiantSwarm • Images expected in Dockerhub or GiantSwarm own private registry # own CLI swarm login swarm ls swarm create swarm start / swarm stop swarm status swarm logs swarm logout
53. Dockerize a Java Web App Production - PaaS DEMO - Giant Swarm (online access necessary ;-)
54. Dockerize a Java Web App Production - PaaS • Amazon Container Services • Google Container Services (Kubernetes) • Profitbricks • Joyent (Triton) • Cloudfoundry (Warden) ◦ Pivotal ◦ IBM Bluemix • Redhat Openshift
55. Dockerize a Java Web App Production - PaaS OnPremis On Premise • IaaS as base • Docker Swarm • Redhat Atomic / Openshift • Kubernetes • Mesos • DEIS • Rancher (based on RancherOS) • ….
56. Lessons learned
57. Lessons Learned Bereitstellung von Tools und Komponenten Verpacken und Deployen von Anwendungen Einfache Definition und Ausführung von (komplexen) Anwendungslandschaften (“Compositions”) Unit-/Modultests ...
58. One more thing ...
59. One more thing …. Private Docker Registries JFrog Artifactory (Docker support commercial only) Sonatype Nexus V3.0.0
60. One more thing …. Docker V1.9 new network stack multi host pluggable new storage subsystem pluggable
61. One more thing …. DockerCon Europe 2015 Docker Nautilus Dockerhub upgrade SaaS tool (based on Tutum) Universal Control Plane (on-premise)
62. Questions … ?
63. Thanks for attention ...
64. Links ... • [Gra01] J. Gray, A Conversation with Werner Vogels: Learning form the Amazon technology platform, 2006, siehe: https://queue.acm.org/detail.cfm?id=1142065 • [HuFa01] Jez Humble, David Farley, Continuous Delivery: Reliable Software Releases Through Build, Test and Deployment Automation, 2010, Addison-Wesley • • [Do01] Docker Homepage https://www.docker.com/ • [Do02] Docker Hub https://hub.docker.com/ • [Do03] Docker Engine https://github.com/docker/docker • [Do04] Docker Machine https://github.com/docker/machine • [Do05] Docker Compose https://github.com/docker/compose • [Do06] Docker Toolbox https://github.com/docker/toolbox • • [Http01] Httpie Homepage http://httpie.org/ • • [RHu01] Docker-Maven-Plugin https://github.com/rhuss/docker-maven-plugin • [RHus02] Docker Maven Plugin Shootout: https://github.com/rhuss/shootout-docker-maven • [Spo01] Docker-Maven-Plugin https://github.com/spotify/docker-maven-plugin •
65. Links ... • [Ma01] https://bitbucket.org/mindapproach/demo-helloworld-web • EOL