What is it? Ian Robinson, Alasdair Nottingham, Geoff Pirie, WebSphere Chief Architect. Open Liberty Project Lead. Open Liberty Product Manager

Transcription

1 What is it? Ian Robinson, WebSphere Chief Architect Alasdair Nottingham, Open Liberty Project Lead Geoff Pirie, Open Liberty Product Manager 1

2 Developer Feedback 2

3 Developer Feedback Quotes Evil EPIC FAIL! Exception generator Would never choose it myself Dangerous for your mental health Abandon all hope ye who enter webfear!! Websfear is mostly a generator of frustration and consulting fees 3

4 Developer Feedback Quotes Evil EPIC FAIL! Exception generator Would never choose it myself Dangerous for your mental health Abandon all hope ye who enter webfear!! Websfear is mostly a generator of frustration and consulting fees 4

5 Stability vs Innovation Stability Stop changing things under me I want to do the fun stuff, stop breaking the stable applications When I upgrade everything breaks This app is mission critical I can t afford weird JDK arithmetic bugs Innovation I need the latest features Lambdas are cool My code is cleaner with Java 8 I need the latest APIs because I m at the cutting edge 5

6 Our Journey and Why We Made It Efficient Simple to use Consistency Just enough Application Server Very good for virtualized environments End of migration Agile Ready 6

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8 Open Liberty and WebSphere Open Liberty is the essential Java EE and MicroProfile runtime that WebSphere Liberty extends WebSphere Liberty Core offers supported Java EE Web Profile Liberty Base offers supported Java EE Full Profile Liberty ND offers supported Java EE Full Profile and advanced management capabilities Liberty ND Liberty Base Liberty Core All 3 commercial editions provide additional capabilities: Programming model extensions Production quality of service extensions Security extensions And IBM s full support Full Profile Java EE 7 MicroProfile Web Profile Java EE 7 8

9 Demo 9

10 Fit-for-purpose server <feature>microprofile-1.0</feature> <feature>microprofile-1.2</feature> Java EE mpconfig jaxrs-2.0 cdi-1.2 mphealth appmgr Kernel 10

11 Open Liberty features MicroProfile WebProfile 7 Java EE 7 Java EE 8 (WIP) non-api cdi-1.2 servlet-3.0 jaxws-2.2 servlet-4.0 restconnector-2.0 jsonp-1.0 beanvalidation-1.1 jms-2.0 jaxrs-2.1 passwordutilities-1.0 jaxrs-2.0 cdi-1.2 jca-1.7 jsonb-1.0 federatedrepository-1.0 mpconfig-1.0 jpa-2.1 jaspic-1.1 jsonp-1.1 ldapregistry-3.0 mpfaulttolerance-1.0 el-3.0 jacc-1.5 javamail-1.6 monitor-1.0 mphealth-1.0 jaxrs-2.0 concurrent-1.0 jsf-2.3 bells-1.0 mpmetrics-1.0 managedbeans-1.0 ejb-3.2 appsecurity-2.0 mpjwt-1.0 websocket-1.1 batch-1.0 transportsecurity-1.0 jsonp-1.0 j2eemanagement-1.1 servlet-3.1 javamail-1.5 jsp-2.3 jsf-2.2 ejblite

12 Simple Config <server> <featuremanager> <feature>microprofile-1.2</feature> </featuremanager> <webapplication location= myweb.war contextroot= / /> </server> -Xmx1g -Dsystem.prop=value jvm.options server.xml WLP_OUTPUT_DIR=/usr/wlp-out/ server.env 12

13 Composing Config <server> <httpendpoint id= defaulthttpendpoint host= ${host} httpport= ${http} httpsport= ${https} /> </server> configdropins/defaults/common-http.xml <server> <include location=" /> <variable name= host value= ${my.host} /> <variable name= http value= ${my.host.http} /> <variable name= https value= ${my.host.https} /> </server> configdropins/overrides/ports.xml 13

14 Fast & Small Startup Startup Time Footprint Liberty Tomcat 9 M11 WildFly 10.1 TomEE Plus Liberty Tomcat 9 M11 WildFly 10.1 TomEE Plus Lower is better 14

15 Helpful Debug 15

16 Class Visibility - Parent First 3 Web Application myapp.jar libx-2.jar myutil.jar 2 Application Server runtime.jar libx-1.jar was-util.jar 1 JVM App Server & Application use open source library They use different versions When application loads class in open source library, the app server copy is found first Application fails as class is not compatible rt.jar jce.jar jsse.jar 16

17 Class Visibility - Parent Last 3 Web Application myapp.jar libx-2.jar myutil.jar 2 Application Server runtime.jar libx-1.jar was-util.jar 1 JVM App Server & Application use open source library They use different versions When application loads class in open source library, the application copy is found first If application contains Servlet classes then the container can t use the Servlet classes so application fails rt.jar jce.jar jsse.jar 17

18 Class Visibility - Liberty 3 Web Application myapp.jar libx-2.jar myutil.jar 2 Application Server runtime.jar libx-1.jar was-util.jar 1 JVM App Server & Application use open source library They use different versions When application loads class in open source library, only API class loads are delegated to the application server classloader Application gets the open source class it wants, server and application agree on servlet rt.jar jce.jar jsse.jar 18

19 Zero Migration Zero config migration Write once, run forever Zero migration for apps - No behavior changes in existing features - New behaviors in new features Choose your Java - IBM, Oracle, Open JDK+OpenJ9, Open JDK+Hotspot app1svr app2svr WLP_CONFIG_DIR 19

20 Liberty Server Package transfer unzip host1 app and config + = transfer unzip host2 zip liberty transfer unzip host3 20

21 Cloud Environments Cloud Foundry app and config cf push liberty buildpack kubernetes deployment Pod Kubernetes Pod Pod Pod Pod FROM open-liberty docker image 21

22 An Open Cloud Java Stack Microservice Builder Pod Pod Pod IBM Cloud private Community edition Service Management and Fabric WebSphere Liberty s open source Java EE and MicroProfile runtime for Java microservices The contribution of IBM s enterprise grade, open source, JVM Prebuilt OpenJDK 9 with OpenJ9 VM from AdoptOpenJDK 22

23 Useful links

24 Thank You! 24

25 Liberty Evolution Servlet/JSP Java EE 6 Web Profile Java EE 7 MicroProfile 1.2 MicroProfile

26 Robust Microservices MicroProfile adds new enterprise Java capabilities for microservices Config Fault Tolerance Health Check Health Metrics Distributed Tracing externalize configuration to improve portability build robust behavior to cope with unexpected failures ensure services are running and meeting SLAs understand the interactions between services while running resolve problems in complex distributed systems mpconfig-1.1 mpfaulttolerance-1.0 mphealth-1.0 mpmetrics-1.0 New in Eclipse MicroProfile Release 1.2: 26