Cloud Foundry Meetup Stuttgart 2017 - Spring Cloud Development
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1) The document discusses Spring Boot and Spring Cloud frameworks for building cloud-native Java applications. It covers concepts like externalizing configurations, distributed tracing, logging as event streams, and integrating with Cloud Foundry. 2) The document recommends treating backing services as attached resources and binding services to applications. It also discusses storing encrypted configuration data and refreshing app configurations without restarts. 3) The document promotes principles of 12-factor apps like declaring explicit dependencies, maximizing robustness with fast startup/shutdown, and treating logs as event streams. It suggests pushing apps to Cloud Foundry with "cf push" and not worrying about infrastructure details.
![$ java -jar helloworld-0.0.1-SNAPSHOT.jar
$ ./helloworld-0.0.1-SNAPSHOT.jar
…
… --- [main] HelloworldApplication : Started HelloworldApplication in 3.801 seconds (JVM running for 4.403)
$ <Ctrl-C>
…Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext
…Stopping beans in phase 0
…Unregistering JMX-exposed beans on shutdown
$ ./helloworld-0.0.1-SNAPSHOT.jar
…
… --- [main] HelloworldApplication : Started HelloworldApplication in 3.801 seconds (JVM running for 4.403)
…
Spring Boot
IX. Disposability
Maximize robustness with fast startup and graceful shutdown](https://image.slidesharecdn.com/springcloudcloudfoundry-170502072636/85/Cloud-Foundry-Meetup-Stuttgart-2017-Spring-Cloud-Development-5-320.jpg)
Cloud Foundry Meetup Stuttgart 2017 - Spring Cloud Development
- 1. „Cloud-Native“ Java (Kotlin) Applications & Cloud Foundry Spring Boot Spring Cloud https://projects.spring.io/spring-boot/ https://projects.spring.io/spring-cloud/ Cloud Foundry Stuttgart Meetup - 26.4.2017
- 2. Spring Cloud Spring IO Platform Spring Boot Spring Cloud Config Spring Cloud Netflix Spring Cloud for CloudFoundry Spring Cloud Bus Spring Cloud Security Spring Cloud Data FlowSpring Cloud Sleuth Spring Cloud Stream Spring Cloud TaskSpring Cloud Connectors Spring Cloud ContractSpring Cloud for AWS Spring Cloud Function https://github.com/markfisher/spring-cloud-function Spring Cloud Gateway https://github.com/spring-cloud-incubator/spring- cloud-gatewaySpring Cloud Pipelines
- 4. buildscript { ext { springBootVersion = '1.5.3.RELEASE' } … } dependencies { compile('org.springframework.boot:spring-boot-starter-actuator') compile('org.springframework.boot:spring-boot-starter-web') testCompile('org.springframework.boot:spring-boot-starter-test') } Spring Boot II. Dependencies Explicitly declare and isolate dependencies http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#appendix-dependency-versions
- 5. $ java -jar helloworld-0.0.1-SNAPSHOT.jar $ ./helloworld-0.0.1-SNAPSHOT.jar … … --- [main] HelloworldApplication : Started HelloworldApplication in 3.801 seconds (JVM running for 4.403) $ <Ctrl-C> …Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext …Stopping beans in phase 0 …Unregistering JMX-exposed beans on shutdown $ ./helloworld-0.0.1-SNAPSHOT.jar … … --- [main] HelloworldApplication : Started HelloworldApplication in 3.801 seconds (JVM running for 4.403) … Spring Boot IX. Disposability Maximize robustness with fast startup and graceful shutdown
- 6. Spring Boot Actuator Monitor & manage via HTTP, JMX, SSH, Telnet Auditing, health and metrics CloudFoundry integration Spring Boot Transparent about state / health
- 9. cf push ❤ Here is my source code Run it on the cloud for me I do not care how cf push my-app … “Here is my source code Run it on the cloud for me I do not care how!” ONSI FAKHOURI (VP Cloud R&D, Pivotal)
- 13. $ cf login -a api.run.pivotal.io -u andreas.falk@novatec-gmbh.de -p xxx -s development API endpoint: api.run.pivotal.io Authenticating... OK API endpoint: https://api.run.pivotal.io (API version: 2.78.0) User: andreas.falk@novatec-gmbh.de Org: NT-Labs Space: development $ cf login -a api.local.pcfdev.io -u admin -p admin -o pcfdev-org -s pcfdev-space …
- 15. IV. Backing services Treat backing services as attached resources Microservice Service Service Binding Credentials
- 16. $ cf marketplace … $ cf create-service mysql 1gb mysqldb … $ cf bind-service myapp mysqldb … $ cf restage myapp
- 17. Spring Cloud Config Externalize configuration to git repository Refresh application configuration without restart Store encrypted sensible configuration data Spring Cloud https://cloud.spring.io/spring-cloud-config/ III. Config Store config in the environment
- 18. Spring Cloud Sleuth Distributed tracing PCF Metrics Logs, metrics and event data from apps Trace explorer Spring Cloud https://content.pivotal.io/blog/distributed-tracing-in-pcf-metrics-breakthrough-insight-for-microservices XI. Logs Treat logs as event streams https://docs.pivotal.io/pcf-metrics/1-3/index.html https://cloud.spring.io/spring-cloud-sleuth
- 21. Don‘t hesitate to ask: andreas.falk@novatec-gmbh.de Questions? The End