Geode on Docker
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Basic intro to Geode on Docker including some best practices and general tips around containers.
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Geode on Docker
- 1. Docker and Geode William Markito wmarkito@pivotal.io
- 2. Docker and Geode Using Apache Geode and Docker 2
- 3. Disclaimer Apache Geode (incubating) has not yet a release under Apache Software Foundation Incubator. The current bits available are for development purposes arising from a nightly build. Use at your own risk. 3
- 4. ‣ Docker basics ‣ Demo ‣ Building Apache Geode image ‣ Docker and Geode basics ‣ Demo ‣ Troubleshooting ‣ Demo Agenda 4
- 5. ‣ Enterprise Architect for Pivotal GemFire ‣ Helping customers & field design GemFire solutions ‣ Helping (?) engineering with features and bugs ‣ Focusing on Apache Geode Who Am I ? 5
- 6. Enterprise in the next year ?
- 7. • Containers • FreeBSD Jails (2000) • Solaris Zones (2004) • Docker (2013) • Operating system level virtualization • Isolated user space instances Some history… 7 * https://linuxcontainers.org/
- 8. • Fast churn (create/delete) • For applications it’s seamless • Each instance has its own FileSystem, RAM, CPU • Keep environment consistent • Useful for troubleshooting, CI, tests • Used in production at scale (Google/Twitter/Netflix) Why containers ? 8
- 9. 9 Container vs VM “..while the hypervisor abstracts the entire device, containers just abstract the operating system kernel"
- 10. 10 Docker vs Vagrant Docker Vagrant Virtual Environment Virtual Machine Manager Linux* Any platform Few seconds Few minutes Partial isolation Full isolation Dockerfile Vagrantfile * https://www.scriptrock.com/articles/docker-vs-vagrant
- 11. 11 Docker vs Vagrant Dockerfile Vagrantfile FROM centos:latest RUN yum install -‐y dos2unix ENV MY_VAR my_value EXPOSE 8080 RUN mkdir /data CMD ["bash"] Vagrant.configure("2") do |config| config.vm.box = "chef/centos-‐7.0" config.vm.hostname = "mybox" config.vm.network :private_network, ip: "192.168.0.42" config.vm.provider :virtualbox do |vb| vb.customize [ "modifyvm", :id, "-‐-‐cpuexecutioncap", "50", "-‐-‐memory", "256", ] end config.vm.provision :shell, path: "bootstrap.sh" end
- 12. • Commands 12 docker create docker run docker exec docker stop docker start docker restart docker rm docker kill docker attach docker ps docker logs docker inspect docker events docker port docker top docker stats docker diff Actions Monitoring Docker 101
- 13. • Commands 13 docker images docker import docker build docker commit docker load docker history docker tag docker login docker search docker pull docker push Images Other useful commands Docker 101 https://github.com/wsargent/docker-cheat-sheet
- 14. • Dockerfile • Image descriptor • Step-by-step instructions 14 FROM centos:latest RUN yum install -‐y dos2unix ENV MY_VAR my_value EXPOSE 8080 RUN mkdir /data CMD ["bash"] Docker 101
- 16. 16 • Dockerfile • Layers • Union mount "A union mount is a way of mounting that allows several filesystems or directories to be simultaneously mounted and visible through a single mount point, appearing to be one filesystem.”* * Pendry, Jan-Simon; Marshall Kirk McKusick (December 1995). "Union Mounts in 4.4BSD-Lite” Docker 101
- 17. 17 FROM centos:latest RUN yum install -‐y dos2unix RUN yum install -‐y zlib-‐devel ENV MY_VAR my_value EXPOSE 8080 RUN mkdir /data CMD ["bash"] Building Apache Geode image • Docker Layers Previous image: 236.1MB (docker history <id>) - Install a header file of 49k
- 18. 18 Demo Building Apache Geode image
- 19. • Docker Layers Previous image: 236.1MB - Install a header file of 49k Current image: 299.7MB 19 FROM centos:latest RUN yum install -‐y dos2unix zlib-‐devel ENV MY_VAR my_value EXPOSE 8080 RUN mkdir /data CMD ["bash"] Building Apache Geode image
- 20. Building Apache Geode image 20 FROM centos:latest MAINTAINER William Markito <william.markito@gmail.com> LABEL Vendor="Apache Geode (incubating)" LABEL version=unstable # download JDK 8 ENV JAVA_HOME /jdk1.8.0_51 RUN yum install -‐y wget which tar git && wget -‐-‐no-‐cookies -‐-‐no-‐check-‐certificate -‐-‐header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-‐ securebackup-‐cookie" "http://download.oracle.com/otn-‐pub/java/jdk/8u51-‐b16/jdk-‐8u51-‐linux-‐x64.tar.gz" && tar xf jdk-‐8u51-‐linux-‐x64.tar.gz && git clone -‐b develop https://github.com/apache/incubator-‐geode.git && cd incubator-‐geode && ./gradlew build -‐Dskip.tests=true && ls /incubator-‐geode | grep -‐v gemfire-‐assembly | xargs rm -‐rf && rm -‐rf /root/.gradle/ && rm -‐rf /incubator-‐geode/gemfire-‐assembly/build/distributions/ && rm -‐rf /jdk-‐8u51-‐linux-‐x64.tar.gz && rm -‐rf $JAVA_HOME/*src.zip $JAVA_HOME/lib/missioncontrol $JAVA_HOME/lib/visualvm $JAVA_HOME/lib/*javafx* $JAVA_HOME/jre/lib/plugin.jar $JAVA_HOME/jre/lib/amd64/libfxplugins.so $JAVA_HOME/jre/lib/amd64/libglass.so $JAVA_HOME/jre/lib/amd64/libgstreamer-‐lite.so $JAVA_HOME/jre/lib/amd64/libjavafx*.so $JAVA_HOME/jre/lib/amd64/libjfx*.so && rm -‐rf /usr/share/locale/* && yum remove -‐y perl && yum clean all ENV GEODE_HOME /incubator-‐geode/gemfire-‐assembly/build/install/apache-‐geode ENV PATH $PATH:$GEODE_HOME/bin:$JAVA_HOME/bin # Default ports: # RMI/JMX 1099 # REST 8080 # PULE 7070 # LOCATOR 10334 # CACHESERVER 40404 EXPOSE 8080 10334 40404 1099 7070 VOLUME ["/data/"] CMD [“gfsh"]
- 21. 21 Demo Building Apache Geode image
- 22. 22 • Docker-compose (Fig) • Simple YAML file • Orchestration • Ordering • Scale • Network wiring locator: #build: . image: apachegeode/geode:unstable hostname: locator expose: -‐ "10334" -‐ "1099" -‐ "7575" ports: -‐ "1099:1099" -‐ "10334:10334" -‐ "7575:7575" volumes: -‐ scripts/:/data/ command: gfsh start locator -‐-‐name=locator -‐-‐mcast-‐port=0 server: image: apachegeode/geode:unstable links: -‐ locator:locator expose: -‐ "8080" -‐ "40404" -‐ "1099" ports: -‐ "40404" volumes: -‐ scripts/:/data/ command: gfsh start server —name=server —locators=locator[10334] Apache Geode - Container cluster
- 23. 23 Demo Apache Geode - Container cluster
- 24. 24 Geode on Containers: Use cases ‣ Scale systems ‣ Microservices architecture ‣ REST services on Geode ‣ Testing or reproducing scenarios ‣ Network partitions ‣ Production environment (multiple nodes) ‣ Deploy on cloud infrastructure
- 27. Agenda 27 ‣ Docker basics ‣ Demo ‣ Building Apache Geode image ‣ Docker and Geode basics ‣ Demo ‣ Troubleshooting ‣ Demo
- 29. 29 Troubleshooting • Postmortem • docker ps -a • docker inspect <id> • Volumes! • Online • docker stats • docker logs • bash/shell • Your current knowledge still applies!
- 31. Concerns 31 • Performance (prefer —net=host) • Storage (persistence & backup) • Statistics • /proc is not containerized • Metrics are still a bit confusing • Fair access to system resources • Security • Everything as root… • VM’s do a better job here ?
- 32. • Speed + easy of use always wins! • Portability + consistency for dev, test and prod • Containers are good for applications and services • Easy to scale for applications • Easy to scale for services such as Apache Geode • Apache Geode as Cloud Native “data storage" Conclusions 32
- 33. • Code • New features • Bug fixes • Writing tests • Documentation • Wiki • Web site • User guide 33 How to Contribute • Community • Join the mailing list • Ask or answer • Join our HipChat • Become a speaker • Finding bugs • Testing an RC/Beta
- 34. Q&A 34