devops:docker:kubernetes:tutorial-springboot
This is an old revision of the document!
https://spring.io/guides/gs/spring-boot-kubernetes
To build the jar use:
$ ./gradlew bootJar --args='--server.port=8888' Starting a Gradle Daemon, 1 busy and 1 stopped Daemons could not be reused, use --status for details BUILD SUCCESSFUL in 11s 4 actionable tasks: 1 executed, 3 up-to-date
To run
$ java -jar build/libs/demo-0.0.1-SNAPSHOT.jar . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v3.2.3) 2024-03-04T22:46:38.269+01:00 INFO 47724 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication v0.0.1-SNAPSHOT using Java 17.0.4 with PID 47724 (/mnt/d/1PROJEKTE/Kubernete-tutorials-springboot/build/libs/demo-0.0.1-SNAPSHOT.jar started by skip in /mnt/d/1PROJEKTE/Kubernete-tutorials-springboot) 2024-03-04T22:46:38.282+01:00 INFO 47724 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to 1 default profile: "default" ^X^C2024-03-04T22:46:40.721+01:00 INFO 47724 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 1 endpoint(s) beneath base path '/actuator' 2024-03-04T22:46:41.296+01:00 INFO 47724 --- [ main] o.s.b.web.embedded.netty.NettyWebServer : Netty started on port 8080 2024-03-04T22:46:41.311+01:00 INFO 47724 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 4.003 seconds (process running for 4.858)
Building the image:
$ ./gradlew bootBuildImage
[creator] Adding label 'io.buildpacks.project.metadata'
[creator] Adding label 'org.opencontainers.image.title'
[creator] Adding label 'org.opencontainers.image.version'
[creator] Adding label 'org.springframework.boot.version'
[creator] Setting default process type 'web'
[creator] Saving docker.io/library/demo:0.0.1-SNAPSHOT...
[creator] *** Images (b57e814aa8fb):
[creator] docker.io/library/demo:0.0.1-SNAPSHOT
[creator] Adding cache layer 'paketo-buildpacks/syft:syft'
[creator] Adding cache layer 'buildpacksio/lifecycle:cache.sbom'
Successfully built image 'docker.io/library/demo:0.0.1-SNAPSHOT'
BUILD SUCCESSFUL in 1m 6s
5 actionable tasks: 1 executed, 4 up-to-date
skip@desktop:/mnt/d/1PROJEKTE/Kubernete-tutorials-springboot$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
paketobuildpacks/run-jammy-base latest ddb21b4d22de 6 days ago 111MB
gcr.io/k8s-minikube/kicbase v0.0.42 dbc648475405 3 months ago 1.2GB
gcr.io/k8s-minikube/kicbase v0.0.30 1312ccd2422d 2 years ago 1.14GB
demo 0.0.1-SNAPSHOT b57e814aa8fb 44 years ago 307MB
paketobuildpacks/builder-jammy-base latest d00577c76e33 44 years ago 1.46GB
Running
docker run -p 8080:8080 demo:0.0.1-SNAPSHOT Setting Active Processor Count to 20 Calculating JVM memory based on 30175084K available memory For more information on this calculation, see https://paketo.io/docs/reference/java-reference/#memory-calculator Calculated JVM Memory Configuration: -XX:MaxDirectMemorySize=10M -Xmx29783343K -XX:MaxMetaspaceSize=84540K -XX:ReservedCodeCacheSize=240M -Xss1M (Total Memory: 30175084K, Thread Count: 50, Loaded Class Count: 12512, Headroom: 0%) Enabling Java Native Memory Tracking Adding 137 container CA certificates to JVM truststore Spring Cloud Bindings Enabled Picked up JAVA_TOOL_OPTIONS: -Djava.security.properties=/layers/paketo-buildpacks_bellsoft-liberica/java-security-properties/java-security.properties -XX:+ExitOnOutOfMemoryError -XX:ActiveProcessorCount=20 -XX:MaxDirectMemorySize=10M -Xmx29783343K -XX:MaxMetaspaceSize=84540K -XX:ReservedCodeCacheSize=240M -Xss1M -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+PrintNMTStatistics -Dorg.springframework.cloud.bindings.boot.enable=true . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v3.2.3)
devops/docker/kubernetes/tutorial-springboot.1709664062.txt.gz · Last modified: by skipidar