confidential What's Cloud Foundry and why you want to use it § June 1, 2017 – Alois Mayr – @mayralois 

The cloud-native evolution 9 out of 10 of surveyed respondents are going to migrate to cloud technologies within the next five years 

..but what does it mean to be cloud native? Micro-services oriented - loosely coupled, explicit dependencies Container packaged - isolated unit of application deployment Dynamically managed - central orchestration process Source: Cloud Native Computing Foundation 

..but what does it mean to be cloud native? Onsi Fakhoui: VP Cloud Research & Development 

confidential Dev teams become responsible for operations You build it, you run it bash-3.2$ cf target -s prod API endpoint: https://api.cf.$DOMAIN User: amayr Org: dynatrace Space: prod bash-3.2$ cf push 

confidential What's under the covers? 

confidential CF and Diego § Components run on separate instances (VMs) in HA mode § 25-30 instances minimum to run a full-fledged Cloud Foundry cluster § Cells are the only instances that actually run applications 

cf push APP Buildpack kicks in and builds droplet app.zip Setting up routes to app containers Scheduling desired app instances droplet Running app in garden containers cf logs APP Forwards logs Firehose delivers all logs and metrics Developer Enduser https://APP.domain 

Source: Pivotal Enablement Developer Basics https://content.enablement.pivotal.io/pivotal-cloud-foundry-developer/pcf-developer-basics/buildpack/buildpack.pdf 

Source: Pivotal Enablement Developer Basics https://content.enablement.pivotal.io/pivotal-cloud-foundry-developer/pcf-developer-basics/buildpack/buildpack.pdf 

confidential Buildpacks § Handle the staging process of pushed apps § Provide runtime support and external dependencies § Typically language specific 

confidential cf push $ cf push spring-music --hostname spring-music-devone Using manifest file /Users/cwat-amayr/Documents/CloudFoundry/test-app/spring-music/manifest.yml Creating app spring-music in org amayr / space dev as admin... OK Using route spring-music-devone.apps.pcfeu.dev.dynatracelabs.com Binding spring-music-devone.apps.pcfeu.dev.dynatracelabs.com to spring-music... OK Uploading spring-music... Uploading app files from: /var/folders/mm/rs3p_4ns59sgz4g1xy4sprk4kl34fs/T/unzipped-app569800276 Uploading 452.5K, 90 files Done uploading OK 

confidential cf push Starting app spring-music in org amayr / space dev as admin... Downloading java_buildpack_offline... Downloaded java_buildpack_offline Creating container Successfully created container Downloading app package... Downloaded app package (21.1M) Staging... -----> Java Buildpack Version: v3.16 (offline) | https://github.com/cloudfoundry/java-buildpack.git#2110750 -----> Downloading Open Jdk JRE 1.8.0_131 from https://java-buildpack.cloudfoundry.org/openjdk/trusty/x86_64/openjdk- 1.8.0_131.tar.gz (found in cache) Expanding Open Jdk JRE to .java-buildpack/open_jdk_jre (1.1s) -----> Downloading Open JDK Like Memory Calculator 2.0.2_RELEASE from https://java-buildpack.cloudfoundry.org/memory- calculator/trusty/x86_64/memory-calculator-2.0.2_RELEASE.tar.gz (found in cache) Memory Settings: -Xss349K -Xmx681574K -XX:MaxMetaspaceSize=104857K -Xms681574K -XX:MetaspaceSize=104857K -----> Downloading Container Certificate Trust Store 2.1.0_RELEASE from https://java-buildpack.cloudfoundry.org/container- certificate-trust-store/container-certificate-trust-store-2.1.0_RELEASE.jar (found in cache) Adding certificates to .java-buildpack/container_certificate_trust_store/truststore.jks (1.5s) -----> Downloading Spring Auto Reconfiguration 1.10.0_RELEASE from https://java-buildpack.cloudfoundry.org/auto- reconfiguration/auto-reconfiguration-1.10.0_RELEASE.jar (found in cache) -----> Downloading Tomcat Instance 8.0.43 from https://java-buildpack.cloudfoundry.org/tomcat/tomcat-8.0.43.tar.gz Expanding Tomcat Instance to .java-buildpack/tomcat (0.1s) -----> Downloading Tomcat Lifecycle Support 2.5.0_RELEASE from https://java-buildpack.cloudfoundry.org/tomcat-lifecycle- support/tomcat-lifecycle-support-2.5.0_RELEASE.jar (found in cache) -----> Downloading Tomcat Logging Support 2.5.0_RELEASE from https://java-buildpack.cloudfoundry.org/tomcat-logging- support/tomcat-logging-support-2.5.0_RELEASE.jar (found in cache) -----> Downloading Tomcat Access Logging Support 2.5.0_RELEASE from https://java-buildpack.cloudfoundry.org/tomcat-access- logging-support/tomcat-access-logging-support-2.5.0_RELEASE.jar (found in cache) Exit status 0 Staging complete 

confidential cf push Uploading droplet, build artifacts cache... Uploading droplet... Uploading build artifacts cache... Uploaded build artifacts cache (109B) Uploaded droplet (74.1M) Uploading complete Destroying container 0 of 1 instances running, 1 starting 0 of 1 instances running, 1 starting 0 of 1 instances running, 1 starting 1 of 1 instances running App started OK App spring-music was started using this command `CALCULATED_MEMORY=$($PWD/.java-buildpack/open_jdk_jre/bin/java-buildpack- memory-calculator-2.0.2_RELEASE -memorySizes=metaspace:64m..,stack:228k.. -memoryWeights=heap:65,metaspace:10,native:15,stack:10 -memoryInitials=heap:100%,metaspace:100% -stackThreads=300 -totMemory=$MEMORY_LIMIT) && JAVA_HOME=$PWD/.java- buildpack/open_jdk_jre JAVA_OPTS="-Djava.io.tmpdir=$TMPDIR -XX:OnOutOfMemoryError=$PWD/.java- buildpack/open_jdk_jre/bin/killjava.sh $CALCULATED_MEMORY -Djavax.net.ssl.trustStore=$PWD/.java- buildpack/container_certificate_trust_store/truststore.jks -Djavax.net.ssl.trustStorePassword=java-buildpack-trust-store- password -Djava.endorsed.dirs=$PWD/.java-buildpack/tomcat/endorsed -Daccess.logging.enabled=false -Dhttp.port=$PORT" exec $PWD/.java-buildpack/tomcat/bin/catalina.sh run` 

confidential cf push Showing health and status for app spring-music in org amayr / space dev as admin... OK requested state: started instances: 1/1 usage: 512M x 1 instances urls: spring-music-devone.apps.pcfeu.dev.dynatracelabs.com last uploaded: Wed May 31 08:36:58 UTC 2017 stack: cflinuxfs2 buildpack: container-certificate-trust-store=2.1.0_RELEASE java-buildpack=v3.16-offline-https://github.com/cloudfoundry/java- buildpack.git#2110750 open-jdk-like-jre=1.8.0_131 open-jdk-like-memory-calculator=2.0.2_RELEASE spring-auto- reconfiguration=1.10.0_RELEASE... state since cpu memory disk details #0 running 2017-05-31 10:38:05 AM 87.7% 278.3M of 512M 155.4M of 256M 

confidential How to connect with backing services? "Treat backing services as attached resources" (12-factor app) cf bind-service APP_NAME SERVICE_INSTANCE § Service credentials are being exposed via environment variables in runtime container § Services are available via marketplace 

confidential How to scale app instances? $ cf scale spring-music -i 2 Scaling app spring-music in org amayr / space dev as admin... OK $ cf app spring-music Showing health and status for app spring-music in org amayr / space dev as admin... name: spring-music requested state: started instances: 2/2 usage: 512M x 2 instances routes: spring-music-devone.apps.pcfeu.dev.dynatracelabs.com last uploaded: Wed 31 May 10:36:58 CEST 2017 stack: cflinuxfs2 buildpack: container-certificate-trust-store=2.1.0_RELEASE java-buildpack=v3.16-offline- https://github.com/cloudfoundry/java-buildpack.git#2110750 open-jdk-like-jre=1.8.0_131 open-jdk-like-memory-calculator=2.0.2_RELEASE spring-auto- reconfiguration=1.10.0_RELEASE... state since cpu memory disk details #0 running 2017-05-31T08:38:05Z 0.3% 332.1M of 512M 155.4M of 256M #1 running 2017-05-31T10:08:08Z 0.4% 319.9M of 512M 155.4M of 256M 

confidential Containers? § No platform without containers these days § runC – the CLI for spawning & running containers § Built on libcontainer from Docker Here is where the containers live Why? Runtime-isolation on shared compute resources 

Thank you Demo?