Spring Boot整合Kubernetes
spring-boot-maven-plugin构建升级spring boot 版本为2.3.x，执行spring-boot:build-image命令即可。
$ mvn spring-boot:build-image[INFO] Scanning for projects...[INFO][INFO] -----------------------< net.ameizi:k8s-example >-----------------------[INFO] Building k8s-example 1.0.0[INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] >>> spring-boot-maven-plugin:2.3.0.BUILD-SNAPSHOT:build-image (default-cli) > package @ k8s-example >>>[INFO][INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ k8s-example ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] Copying 1 resource[INFO] Copying 0 resource[INFO][INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ k8s-example ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to /Users/amz/develop/workspace/k8s-example/target/classes[INFO][INFO] --- maven-resources-plugin:3.1.0:testResources (default-testResources) @ k8s-example ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory /Users/amz/develop/workspace/k8s-example/src/test/resources[INFO][INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ k8s-example ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to /Users/amz/develop/workspace/k8s-example/target/test-classes[INFO][INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ k8s-example ---Downloading from spring-milestones: https://repo.spring.io/milestone/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.pomDownloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/apache/maven/surefire/surefire-providers/2.22.2/surefire-providers-2.22.2.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/apache/maven/surefire/surefire-providers/2.22.2/surefire-providers-2.22.2.pomDownloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire-providers/2.22.2/surefire-providers-2.22.2.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire-providers/2.22.2/surefire-providers-2.22.2.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.pomDownloading from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.pomDownloading from central: https://repo.maven.apache.org/maven2/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.pomDownloading from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.pomDownloading from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.pomDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.pomDownloading from central: https://repo.maven.apache.org/maven2/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.pomDownloaded from central: https://repo.maven.apache.org/maven2/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.pom (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jarDownloading from spring-milestones: https://repo.spring.io/milestone/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.jarDownloading from spring-milestones: https://repo.spring.io/milestone/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.jarDownloading from spring-milestones: https://repo.spring.io/milestone/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.jarDownloading from spring-milestones: https://repo.spring.io/milestone/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.jarDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jarDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.jarDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.jarDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.jarDownloading from spring-snapshots: https://repo.spring.io/snapshot/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.jarDownloading from central: https://repo.maven.apache.org/maven2/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jarDownloaded from central: https://repo.maven.apache.org/maven2/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jar (0 B at 0 B/s)Downloading from spring-milestones: https://repo.spring.io/milestone/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jarDownloading from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.jarDownloading from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.jarDownloading from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.jarDownloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.jarDownloaded from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.jar (0 B at 0 B/s)Downloading from spring-snapshots: https://repo.spring.io/snapshot/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jarDownloading from central: https://repo.maven.apache.org/maven2/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jarDownloaded from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.jar (0 B at 0 B/s)Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.jar (0 B at 0 B/s)Downloaded from central: https://repo.maven.apache.org/maven2/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jar (0 B at 0 B/s)Downloaded from central: https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.jar (0 B at 0 B/s)[INFO][INFO] -------------------------------------------------------[INFO] T E S T S[INFO] -------------------------------------------------------[INFO] Running net.ameizi.k8s.example.K8sExampleApplicationTests14:26:46.188 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating CacheAwareContextLoaderDelegate from class [org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate]14:26:46.206 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating BootstrapContext using constructor [public org.springframework.test.context.support.DefaultBootstrapContext(java.lang.Class,org.springframework.test.context.CacheAwareContextLoaderDelegate)]14:26:46.250 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating TestContextBootstrapper for test class [net.ameizi.k8s.example.K8sExampleApplicationTests] from class [org.springframework.boot.test.context.SpringBootTestContextBootstrapper]14:26:46.267 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Neither @ContextConfiguration nor @ContextHierarchy found for test class [net.ameizi.k8s.example.K8sExampleApplicationTests], using SpringBootContextLoader14:26:46.277 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: class path resource [net/ameizi/k8s/example/K8sExampleApplicationTests-context.xml] does not exist14:26:46.278 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: class path resource [net/ameizi/k8s/example/K8sExampleApplicationTestsContext.groovy] does not exist14:26:46.278 [main] INFO org.springframework.test.context.support.AbstractContextLoader - Could not detect default resource locations for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: no resource found for suffixes {-context.xml, Context.groovy}.14:26:46.279 [main] INFO org.springframework.test.context.support.AnnotationConfigContextLoaderUtils - Could not detect default configuration classes for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: K8sExampleApplicationTests does not declare any static, non-private, non-final, nested classes annotated with @Configuration.14:26:46.354 [main] DEBUG org.springframework.test.context.support.ActiveProfilesUtils - Could not find an 'annotation declaring class' for annotation type [org.springframework.test.context.ActiveProfiles] and class [net.ameizi.k8s.example.K8sExampleApplicationTests]14:26:46.457 [main] DEBUG org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider - Identified candidate component class: file [/Users/amz/develop/workspace/k8s-example/target/classes/net/ameizi/k8s/example/K8sExampleApplication.class]14:26:46.458 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Found @SpringBootConfiguration net.ameizi.k8s.example.K8sExampleApplication for test class net.ameizi.k8s.example.K8sExampleApplicationTests14:26:46.580 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - @TestExecutionListeners is not present for class [net.ameizi.k8s.example.K8sExampleApplicationTests]: using defaults.14:26:46.582 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener, org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener, org.springframework.test.context.event.EventPublishingTestExecutionListener]14:26:46.603 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Skipping candidate TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener] due to a missing dependency. Specify custom listener classes or make the default listener classes and their required dependencies available. Offending class: [org/springframework/transaction/interceptor/TransactionAttributeSource]14:26:46.604 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Skipping candidate TestExecutionListener [org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener] due to a missing dependency. Specify custom listener classes or make the default listener classes and their required dependencies available. Offending class: [org/springframework/transaction/interceptor/TransactionAttribute]14:26:46.605 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@1da2cb77, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@48f278eb, org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener@2f217633, org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@a530d0a, org.springframework.test.context.support.DirtiesContextTestExecutionListener@1a18644, org.springframework.test.context.event.EventPublishingTestExecutionListener@5acf93bb, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener@7e7be63f, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener@6cd28fa7, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener@614ca7df, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener@4738a206, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener@66d3eec0]14:26:46.609 [main] DEBUG org.springframework.test.context.support.AbstractDirtiesContextTestExecutionListener - Before test class: context [DefaultTestContext@741a8937 testClass = K8sExampleApplicationTests, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [WebMergedContextConfiguration@306e95ec testClass = K8sExampleApplicationTests, locations = '{}', classes = '{class net.ameizi.k8s.example.K8sExampleApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@2ddc8ecb, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@33afa13b, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@5dd6264, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@7c0c77c7, org.springframework.boot.test.context.SpringBootTestArgs@1], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true]], class annotated with @DirtiesContext [false] with mode [null].14:26:46.654 [main] DEBUG org.springframework.test.context.support.TestPropertySourceUtils - Adding inlined properties to environment: {spring.jmx.enabled=false, org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}. ____ _ __ _ _/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \\\/ ___)| |_)| | | | | || (_| | ) ) ) )' |____| .__|_| |_|_| |_\__, | / / / /=========|_|==============|___/=/_/_/_/:: Spring Boot :: (v2.3.0.BUILD-SNAPSHOT)2020-05-07 14:26:47.064 INFO 44321 --- [ main] n.a.k.e.K8sExampleApplicationTests : Starting K8sExampleApplicationTests on swfeng.local with PID 44321 (started by amz in /Users/amz/develop/workspace/k8s-example)2020-05-07 14:26:47.066 INFO 44321 --- [ main] n.a.k.e.K8sExampleApplicationTests : No active profile set, falling back to default profiles: default2020-05-07 14:26:48.913 INFO 44321 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'2020-05-07 14:26:49.506 INFO 44321 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 13 endpoint(s) beneath base path '/actuator'2020-05-07 14:26:49.595 INFO 44321 --- [ main] n.a.k.e.K8sExampleApplicationTests : Started K8sExampleApplicationTests in 2.92 seconds (JVM running for 4.057)[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.872 s - in net.ameizi.k8s.example.K8sExampleApplicationTests2020-05-07 14:26:49.969 INFO 44321 --- [extShutdownHook] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'[INFO][INFO] Results:[INFO][INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0[INFO][INFO][INFO] --- maven-jar-plugin:3.2.0:jar (default-jar) @ k8s-example ---[INFO] Building jar: /Users/amz/develop/workspace/k8s-example/target/k8s-example-1.0.0.jar[INFO][INFO] --- spring-boot-maven-plugin:2.3.0.BUILD-SNAPSHOT:repackage (repackage) @ k8s-example ---[INFO] Replacing main artifact with repackaged archive[INFO][INFO] --- jib-maven-plugin:2.2.0:build (default) @ k8s-example ---[INFO][INFO] Containerizing application to registry.hub.docker.com/aimeizi/k8s-example...[WARNING] Base image 'openjdk:8-jdk-alpine' does not use a specific image digest - build may not be reproducible[INFO] Using credentials from Docker config (/Users/amz/.docker/config.json) for registry.hub.docker.com/aimeizi/k8s-example[INFO] The base image requires auth. Trying again for openjdk:8-jdk-alpine...[WARNING] The credential helper (docker-credential-desktop) has nothing for server URL: registry-1.docker.ioNG]Got output:credentials not found in native keychain[INFO] Using credentials from Docker config (/Users/amz/.docker/config.json) for openjdk:8-jdk-alpine[INFO] Using base image with digest: sha256:44b3cea369c947527e266275cee85c71a81f20fc5076f6ebb5a13f19015dce71[INFO][INFO] Container entrypoint set to [java, -cp, /app/resources:/app/classes:/app/libs/*, net.ameizi.k8s.example.K8sExampleApplication][INFO][INFO] Built and pushed image as registry.hub.docker.com/aimeizi/k8s-example[INFO] Executing tasks:[INFO] [=========================== ] 88.9% complete[INFO] > launching layer pushers[INFO][INFO][INFO] <<< spring-boot-maven-plugin:2.3.0.BUILD-SNAPSHOT:build-image (default-cli) < package @ k8s-example <<<[INFO][INFO][INFO] --- spring-boot-maven-plugin:2.3.0.BUILD-SNAPSHOT:build-image (default-cli) @ k8s-example ---[INFO] Building image 'docker.io/library/k8s-example:1.0.0'[INFO][INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 0%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 2%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 2%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 2%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 3%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 3%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 4%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 4%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 6%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 7%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 7%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 8%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 8%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 10%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 11%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 11%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 12%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 12%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 12%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 13%[INFO] > Pulling builder image 'gcr.io/paketo-buildpacks/builder:base-platform-api-0.3' 13%[INFO] > Pulling builder image 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run image 'gcr.io/paketo-buildpacks/run:base-cnb' 41%[INFO] > Pulling run image 'gcr.io/paketo-buildpacks/run:base-cnb' 42%[INFO] > Pulling run image 'gcr.io/paketo-buildpacks/run:base-cnb' 42%[INFO] > Pulling run image 'gcr.io/paketo-buildpacks/run:base-cnb' 46%[INFO] > Pulling run image 'gcr.io/paketo-buildpacks/run:base-cnb' 100%[INFO] > Pulled run image 'gcr.io/paketo-buildpacks/run@sha256:d70bf0fe11d84277997c4a7da94b2867a90d6c0f55add4e19b7c565d5087206f'[INFO] > Executing lifecycle version v0.7.4[INFO] > Using build cache volume 'pack-cache-55330c9f9824.build'[INFO][INFO] > Running detector[INFO] [detector] 5 of 15 buildpacks participating[INFO] [detector] paketo-buildpacks/bellsoft-liberica 2.5.0[INFO] [detector] paketo-buildpacks/executable-jar 1.2.2[INFO] [detector] paketo-buildpacks/apache-tomcat 1.1.2[INFO] [detector] paketo-buildpacks/dist-zip 1.2.2[INFO] [detector] paketo-buildpacks/spring-boot 1.5.2[INFO][INFO] > Running analyzer[INFO] [analyzer] Previous image with name "docker.io/library/k8s-example:1.0.0" not found[INFO][INFO] > Running restorer[INFO][INFO] > Running builder[INFO] [builder][INFO] [builder] Paketo BellSoft Liberica Buildpack 2.5.0[INFO] [builder] Set $BP_JAVA_VERSION to configure the Java version. Default 11.*.[INFO] [builder] Set $BPL_HEAD_ROOM to configure the headroom in memory calculation. Default 0.[INFO] [builder] Set $BPL_LOADED_CLASS_COUNT to configure the number of loaded classes in memory calculation. Default 35% of classes.[INFO] [builder] Set $BPL_THREAD_COUNT to configure the number of threads in memory calculation. Default 250.[INFO] [builder] BellSoft Liberica JRE 8.0.252: Contributing to layer[INFO] [builder] Downloading from https://github.com/bell-sw/Liberica/releases/download/8u252+9/bellsoft-jre8u252+9-linux-amd64.tar.gz[INFO] [builder] Verifying checksum[INFO] [builder] Expanding to /layers/paketo-buildpacks_bellsoft-liberica/jre[INFO] [builder] Writing env.launch/JAVA_HOME.override[INFO] [builder] Writing env.launch/MALLOC_ARENA_MAX.override[INFO] [builder] Writing profile.d/active-processor-count.sh[INFO] [builder] Memory Calculator 4.0.0: Contributing to layer[INFO] [builder] Downloading from https://github.com/cloudfoundry/java-buildpack-memory-calculator/releases/download/v4.0.0/memory-calculator-4.0.0.tgz[INFO] [builder] Verifying checksum[INFO] [builder] Expanding to /layers/paketo-buildpacks_bellsoft-liberica/memory-calculator[INFO] [builder] Writing profile.d/memory-calculator.sh[INFO] [builder] Class Counter: Contributing to layer[INFO] [builder] Copying to /layers/paketo-buildpacks_bellsoft-liberica/class-counter[INFO] [builder] JVMKill Agent 1.16.0: Contributing to layer[INFO] [builder] Downloading from https://github.com/cloudfoundry/jvmkill/releases/download/v1.16.0.RELEASE/jvmkill-1.16.0-RELEASE.so[INFO] [builder] Verifying checksum[INFO] [builder] Copying to /layers/paketo-buildpacks_bellsoft-liberica/jvmkill[INFO] [builder] Writing env.launch/JAVA_OPTS.append[INFO] [builder] Link-Local DNS: Contributing to layer[INFO] [builder] Copying to /layers/paketo-buildpacks_bellsoft-liberica/link-local-dns[INFO] [builder] Writing profile.d/link-local-dns.sh[INFO] [builder] Java Security Properties: Contributing to layer[INFO] [builder] Writing env.launch/JAVA_OPTS.append[INFO] [builder] Writing env.launch/JAVA_SECURITY_PROPERTIES.override[INFO] [builder] Security Providers Configurer: Contributing to layer[INFO] [builder] Copying to /layers/paketo-buildpacks_bellsoft-liberica/security-providers-configurer[INFO] [builder] Writing profile.d/security-providers-classpath.sh[INFO] [builder] Writing profile.d/security-providers-configurer.sh[INFO] [builder] OpenSSL Security Provider 1.0.2: Contributing to layer[INFO] [builder] Downloading from https://jitpack.io/com/github/paketo-buildpacks/openssl-security-provider/1.0.2/openssl-security-provider-1.0.2.jar[INFO] [builder] Verifying checksum[INFO] [builder] Copying to /layers/paketo-buildpacks_bellsoft-liberica/openssl-security-provider[INFO] [builder] Writing env.launch/SECURITY_PROVIDERS.append[INFO] [builder] Writing env.launch/SECURITY_PROVIDERS_CLASSPATH[INFO] [builder] Writing profile.d/openssl-security-provider.sh[INFO] [builder][INFO] [builder] Paketo Executable JAR Buildpack 1.2.2[INFO] [builder] Writing env/CLASSPATH[INFO] [builder] Process types:[INFO] [builder] executable-jar: java -cp "${CLASSPATH}" ${JAVA_OPTS} org.springframework.boot.loader.JarLauncher[INFO] [builder] task: java -cp "${CLASSPATH}" ${JAVA_OPTS} org.springframework.boot.loader.JarLauncher[INFO] [builder] web: java -cp "${CLASSPATH}" ${JAVA_OPTS} org.springframework.boot.loader.JarLauncher[INFO] [builder][INFO] [builder] Paketo Spring Boot Buildpack 1.5.2[INFO] [builder] Image labels:[INFO] [builder] org.opencontainers.image.title[INFO] [builder] org.opencontainers.image.version[INFO] [builder] org.springframework.boot.spring-configuration-metadata.json[INFO] [builder] org.springframework.boot.version[INFO][INFO] > Running exporter[INFO] [exporter] Adding layer 'launcher'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:class-counter'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:java-security-properties'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:jre'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:jvmkill'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:link-local-dns'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:memory-calculator'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:openssl-security-provider'[INFO] [exporter] Adding layer 'paketo-buildpacks/bellsoft-liberica:security-providers-configurer'[INFO] [exporter] Adding layer 'paketo-buildpacks/executable-jar:class-path'[INFO] [exporter] Adding 1/1 app layer(s)[INFO] [exporter] Adding layer 'config'[INFO] [exporter] *** Images (39ca89c37d5b):[INFO] [exporter] docker.io/library/k8s-example:1.0.0[INFO] [exporter] Adding cache layer 'paketo-buildpacks/executable-jar:class-path'[INFO][INFO] Successfully built image 'docker.io/library/k8s-example:1.0.0'[INFO][INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time: 08:13 min[INFO] Finished at: 2020-05-07T14:34:48+08:00[INFO] ------------------------------------------------------------------------
根据日志输出发现构建好的镜像默认为docker.io/library/k8s-example:1.0.0。当然这个可以配置修改
<plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><image><name>k8s-example:latest</name></image></configuration></plugin>
jib-maven-plugin插件构建 docker 镜像
<plugin><groupId>com.google.cloud.tools</groupId><artifactId>jib-maven-plugin</artifactId><version>2.2.0</version><executions><execution><phase>package</phase><goals><goal>build</goal></goals></execution></executions><configuration><from><image>openjdk:8-jdk-alpine</image></from><to><!-- 坑!!!这里切记一定要设置 docker registry的完整地址，否则会被坑死，构建的时候会报授权错误，原因在于执行 mvn package 命令后会打包构建镜像并进行推送，因此要设置镜像仓库的地址，并且记得在命令行进行镜像仓库登录(docker login) --><!-- 此处构建不依赖docker daemon进程。说人话就是不需要启动docker服务 --><image>registry.hub.docker.com/aimeizi/k8s-example:latest</image></to><container><mainClass>net.ameizi.k8s.example.K8sExampleApplication</mainClass><ports><port>8080</port></ports></container></configuration></plugin>
执行构建
导出 Deployment
$ mkdir k8s$ kubectl create deployment k8s-example --image registry.hub.docker.com/aimeizi/k8s-example:latest -o yaml --dry-run > k8s/deployment.yaml
生成的deployment.yaml如下所示:
apiVersion: apps/v1kind: Deploymentmetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:replicas: 1selector:matchLabels:app: k8s-examplestrategy: {}template:metadata:creationTimestamp: nulllabels:app: k8s-examplespec:containers:- image: registry.hub.docker.com/aimeizi/k8s-example:latestname: k8s-exampleresources: {}status: {}
导出 Service
$ kubectl create service clusterip k8s-example --tcp 80:8080 -o yaml --dry-run > k8s/service.yaml
其中80:8080，80为宿主机端口，8080为容器内应用端口
生成的service.yaml如下所示:
apiVersion: v1kind: Servicemetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:ports:- name: 80-8080port: 80protocol: TCPtargetPort: 8080selector:app: k8s-exampletype: ClusterIP # ClusterIP 需要 kubectl port-forwardstatus:loadBalancer: {}
应用和部署生成的Deployment、Service文件
首先开启 watch 监听
$ watch -n 1 kubectl get allEvery 1.0s: kubectl get all swfeng.local: Thu May 7 10:26:58 2020NAME READY STATUS RESTARTS AGEpod/k8s-example-664b9f68d4-jwxmb 1/1 Running 0 52sNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEservice/k8s-example ClusterIP 10.96.67.94 <none> 80/TCP 52sservice/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 14dNAME READY UP-TO-DATE AVAILABLE AGEdeployment.apps/k8s-example 1/1 1 1 52s
应用生成的yaml 文件
$ kubectl apply -f ./k8sdeployment.apps/k8s-example createdservice/k8s-example created
访问和测试应用
使用kubectl port-forward端口映射
$ kubectl port-forward service/k8s-example 8080:80Forwarding from 127.0.0.1:8080 -> 8080Forwarding from [::1]:8080 -> 8080
使用kubectl port-forward将service/k8s-example服务的 80 端口映射到宿主机的8080端口
测试访问
curl http://127.0.0.1:8080/hellohello,kubernetes!
注意:完成该实验时先清理资源。具体使用如下的命令
$ kubectl delete -f ./k8sdeployment.apps "k8s-example" deletedservice "k8s-example" deleted
备份并修改service.yaml文件，修改service.yaml文件中的ClusterIp为LoadBalancer，其修改后的文件内容为
apiVersion: v1kind: Servicemetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:ports:- name: 80-8080port: 80protocol: TCPtargetPort: 8080selector:app: k8s-exampletype: LoadBalancer # LoadBalancer 不需要kubectl port-forward 直接用映射出来的 IP 和端口访问status:loadBalancer: {}
应用修改后的文件
$ kubectl apply -f ./k8s
观察服务映射信息
$ watch -n 1 kubectl get allEvery 1.0s: kubectl get all swfeng.local: Thu May 7 10:48:50 2020NAME READY STATUS RESTARTS AGEpod/k8s-example-664b9f68d4-wnf4s 1/1 Running 0 71sNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEservice/k8s-example LoadBalancer 10.100.43.70 localhost 80:31223/TCP 71sservice/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 14d
或执行如下的命令
$ kubectl get service k8s-example -wNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEk8s-example LoadBalancer 10.100.43.70 localhost 80:31223/TCP 5m47s
根据日志输出发现service/k8s-example，已经做好了 IP、端口映射绑定。
测试并访问应用
$ curl http://127.0.0.1/hellohello,kubernetes!
检查版本信息
$ skaffold versionv1.9.0
生成skaffold.yaml文件
$ skaffold init --XXenableJibInitapiVersion: skaffold/v2beta3kind: Configmetadata:name: k-s-examplebuild:artifacts:- image: registry.hub.docker.com/aimeizi/k8s-examplejib:project: net.ameizi:k8s-exampledeploy:kubectl:manifests:- k8s/deployment.yaml- k8s/service.yamlDo you want to write this configuration to skaffold.yaml? [y/n]: yConfiguration skaffold.yaml was writtenYou can now run [skaffold build] to build the artifactsor [skaffold run] to build and deployor [skaffold dev] to enter development mode, with auto-redeploy
执行完上述操作后会在项目根目录生成一个skaffold.yaml文件，其内容为：
apiVersion: skaffold/v2beta3kind: Configmetadata:name: k-s-examplebuild:artifacts:- image: registry.hub.docker.com/aimeizi/k8s-examplejib:project: net.ameizi:k8s-exampledeploy:kubectl:manifests:- k8s/deployment.yaml- k8s/service.yaml
使用Skaffold部署应用
$ skaffold dev --port-forwardListing files to watch...- registry.hub.docker.com/aimeizi/k8s-exampleGenerating tags...- registry.hub.docker.com/aimeizi/k8s-example -> registry.hub.docker.com/aimeizi/k8s-example:latestSome taggers failed. Rerun with -vdebug for errors.Checking cache...- registry.hub.docker.com/aimeizi/k8s-example: Not found. BuildingFound [docker-desktop] context, using local docker daemon.Building [registry.hub.docker.com/aimeizi/k8s-example]...[INFO] Scanning for projects...[INFO][INFO] -----------------------< net.ameizi:k8s-example >-----------------------[INFO] Building k8s-example 1.0.0[INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- jib-maven-plugin:2.2.0:_skaffold-fail-if-jib-out-of-date (default-cli) @ k8s-example ---[INFO][INFO] -----------------------< net.ameizi:k8s-example >-----------------------[INFO] Building k8s-example 1.0.0[INFO] --------------------------------[ jar ]---------------------------------[INFO][INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ k8s-example ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] Copying 1 resource[INFO] Copying 0 resource[INFO][INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ k8s-example ---[INFO] Nothing to compile - all classes are up to date[INFO][INFO] --- maven-resources-plugin:3.1.0:testResources (default-testResources) @ k8s-example ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory /Users/amz/develop/workspace/k8s-example/src/test/resources[INFO][INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ k8s-example ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to /Users/amz/develop/workspace/k8s-example/target/test-classes[INFO][INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ k8s-example ---Downloading from aliyun: https://maven.aliyun.com/repository/public/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.pom (7.0 kB at 4.7 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/apache/maven/surefire/surefire-providers/2.22.2/surefire-providers-2.22.2.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/apache/maven/surefire/surefire-providers/2.22.2/surefire-providers-2.22.2.pom (2.5 kB at 5.5 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.pom (2.2 kB at 4.9 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.pom (1.2 kB at 2.6 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.pom (2.4 kB at 5.4 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.pom (2.0 kB at 4.5 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.pomDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.pom (1.7 kB at 3.7 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.jarDownloading from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.jarDownloading from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.jarDownloading from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.jarDownloading from aliyun: https://maven.aliyun.com/repository/public/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jarDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/apiguardian/apiguardian-api/1.0.0/apiguardian-api-1.0.0.jar (2.2 kB at 1.2 kB/s)Downloaded from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-engine/1.3.1/junit-platform-engine-1.3.1.jar (135 kB at 75 kB/s)Downloading from aliyun: https://maven.aliyun.com/repository/public/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jarDownloaded from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-commons/1.3.1/junit-platform-commons-1.3.1.jar (78 kB at 38 kB/s)Downloaded from aliyun: https://maven.aliyun.com/repository/public/org/apache/maven/surefire/surefire-junit-platform/2.22.2/surefire-junit-platform-2.22.2.jar (66 kB at 31 kB/s)Downloaded from aliyun: https://maven.aliyun.com/repository/public/org/junit/platform/junit-platform-launcher/1.3.1/junit-platform-launcher-1.3.1.jar (95 kB at 45 kB/s)Downloaded from aliyun: https://maven.aliyun.com/repository/public/org/opentest4j/opentest4j/1.1.1/opentest4j-1.1.1.jar (7.1 kB at 15 kB/s)[INFO][INFO] -------------------------------------------------------[INFO] T E S T S[INFO] -------------------------------------------------------[INFO] Running net.ameizi.k8s.example.K8sExampleApplicationTests11:09:31.561 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating CacheAwareContextLoaderDelegate from class [org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate]11:09:31.581 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating BootstrapContext using constructor [public org.springframework.test.context.support.DefaultBootstrapContext(java.lang.Class,org.springframework.test.context.CacheAwareContextLoaderDelegate)]11:09:31.624 [main] DEBUG org.springframework.test.context.BootstrapUtils - Instantiating TestContextBootstrapper for test class [net.ameizi.k8s.example.K8sExampleApplicationTests] from class [org.springframework.boot.test.context.SpringBootTestContextBootstrapper]11:09:31.653 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Neither @ContextConfiguration nor @ContextHierarchy found for test class [net.ameizi.k8s.example.K8sExampleApplicationTests], using SpringBootContextLoader11:09:31.659 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: class path resource [net/ameizi/k8s/example/K8sExampleApplicationTests-context.xml] does not exist11:09:31.660 [main] DEBUG org.springframework.test.context.support.AbstractContextLoader - Did not detect default resource location for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: class path resource [net/ameizi/k8s/example/K8sExampleApplicationTestsContext.groovy] does not exist11:09:31.660 [main] INFO org.springframework.test.context.support.AbstractContextLoader - Could not detect default resource locations for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: no resource found for suffixes {-context.xml, Context.groovy}.11:09:31.662 [main] INFO org.springframework.test.context.support.AnnotationConfigContextLoaderUtils - Could not detect default configuration classes for test class [net.ameizi.k8s.example.K8sExampleApplicationTests]: K8sExampleApplicationTests does not declare any static, non-private, non-final, nested classes annotated with @Configuration.11:09:31.734 [main] DEBUG org.springframework.test.context.support.ActiveProfilesUtils - Could not find an 'annotation declaring class' for annotation type [org.springframework.test.context.ActiveProfiles] and class [net.ameizi.k8s.example.K8sExampleApplicationTests]11:09:31.858 [main] DEBUG org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider - Identified candidate component class: file [/Users/amz/develop/workspace/k8s-example/target/classes/net/ameizi/k8s/example/K8sExampleApplication.class]11:09:31.859 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Found @SpringBootConfiguration net.ameizi.k8s.example.K8sExampleApplication for test class net.ameizi.k8s.example.K8sExampleApplicationTests11:09:32.026 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - @TestExecutionListeners is not present for class [net.ameizi.k8s.example.K8sExampleApplicationTests]: using defaults.11:09:32.027 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener, org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener, org.springframework.test.context.event.EventPublishingTestExecutionListener]11:09:32.042 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Skipping candidate TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener] due to a missing dependency. Specify custom listener classes or make the default listener classes and their required dependencies available. Offending class: [org/springframework/transaction/interceptor/TransactionAttributeSource]11:09:32.042 [main] DEBUG org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Skipping candidate TestExecutionListener [org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener] due to a missing dependency. Specify custom listener classes or make the default listener classes and their required dependencies available. Offending class: [org/springframework/transaction/interceptor/TransactionAttribute]11:09:32.043 [main] INFO org.springframework.boot.test.context.SpringBootTestContextBootstrapper - Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@5ba3f27a, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@58d75e99, org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener@74751b3, org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@741a8937, org.springframework.test.context.support.DirtiesContextTestExecutionListener@306e95ec, org.springframework.test.context.event.EventPublishingTestExecutionListener@52af26ee, org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener@6fd83fc1, org.springframework.boot.test.autoconfigure.restdocs.RestDocsTestExecutionListener@4f2b503c, org.springframework.boot.test.autoconfigure.web.client.MockRestServiceServerResetTestExecutionListener@bae7dc0, org.springframework.boot.test.autoconfigure.web.servlet.MockMvcPrintOnlyOnFailureTestExecutionListener@209da20d, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverTestExecutionListener@e15b7e8]11:09:32.046 [main] DEBUG org.springframework.test.context.support.AbstractDirtiesContextTestExecutionListener - Before test class: context [DefaultTestContext@434a63ab testClass = K8sExampleApplicationTests, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [WebMergedContextConfiguration@6e0f5f7f testClass = K8sExampleApplicationTests, locations = '{}', classes = '{class net.ameizi.k8s.example.K8sExampleApplication}', contextInitializerClasses = '[]', activeProfiles = '{}', propertySourceLocations = '{}', propertySourceProperties = '{org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true}', contextCustomizers = set[org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@48fa0f47, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@6d2a209c, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.web.client.TestRestTemplateContextCustomizer@4ddced80, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@0, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@76908cc0], resourceBasePath = 'src/main/webapp', contextLoader = 'org.springframework.boot.test.context.SpringBootContextLoader', parent = [null]], attributes = map['org.springframework.test.context.web.ServletTestExecutionListener.activateListener' -> true]], class annotated with @DirtiesContext [false] with mode [null].11:09:32.101 [main] DEBUG org.springframework.test.context.support.TestPropertySourceUtils - Adding inlined properties to environment: {spring.jmx.enabled=false, org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true, server.port=-1}. ____ _ __ _ _/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \\\/ ___)| |_)| | | | | || (_| | ) ) ) )' |____| .__|_| |_|_| |_\__, | / / / /=========|_|==============|___/=/_/_/_/:: Spring Boot :: (v2.2.6.RELEASE)2020-05-07 11:09:32.439 INFO 40881 --- [ main] n.a.k.e.K8sExampleApplicationTests : Starting K8sExampleApplicationTests on swfeng.local with PID 40881 (started by amz in /Users/amz/develop/workspace/k8s-example)2020-05-07 11:09:32.440 INFO 40881 --- [ main] n.a.k.e.K8sExampleApplicationTests : No active profile set, falling back to default profiles: default2020-05-07 11:09:34.552 INFO 40881 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'2020-05-07 11:09:35.159 INFO 40881 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 13 endpoint(s) beneath base path '/actuator'2020-05-07 11:09:35.242 INFO 40881 --- [ main] n.a.k.e.K8sExampleApplicationTests : Started K8sExampleApplicationTests in 3.126 seconds (JVM running for 4.349)[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.144 s - in net.ameizi.k8s.example.K8sExampleApplicationTests2020-05-07 11:09:35.600 INFO 40881 --- [extShutdownHook] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'[INFO][INFO] Results:[INFO][INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0[INFO][INFO][INFO] --- maven-jar-plugin:3.1.2:jar (default-jar) @ k8s-example ---[INFO] Building jar: /Users/amz/develop/workspace/k8s-example/target/k8s-example-1.0.0.jar[INFO][INFO] --- spring-boot-maven-plugin:2.2.6.RELEASE:repackage (repackage) @ k8s-example ---[INFO] Replacing main artifact with repackaged archive[INFO][INFO] --- jib-maven-plugin:2.2.0:build (default) @ k8s-example ---[INFO][INFO] Containerizing application to registry.hub.docker.com/aimeizi/k8s-example...[WARNING] Base image 'openjdk:8-jdk-alpine' does not use a specific image digest - build may not be reproducible[INFO] Getting manifest for base image openjdk:8-jdk-alpine...[INFO] Building dependencies layer...[INFO] Building resources layer...[INFO] Building classes layer...[INFO] Using credentials from Docker config (/Users/amz/.docker/config.json) for registry.hub.docker.com/aimeizi/k8s-example[INFO] The base image requires auth. Trying again for openjdk:8-jdk-alpine...[WARNING] The credential helper (docker-credential-desktop) has nothing for server URL: registry-1.docker.ioGot output:credentials not found in native keychain[INFO] Using credentials from Docker config (/Users/amz/.docker/config.json) for openjdk:8-jdk-alpine[INFO] Using base image with digest: sha256:44b3cea369c947527e266275cee85c71a81f20fc5076f6ebb5a13f19015dce71[INFO][INFO] Container entrypoint set to [java, -cp, /app/resources:/app/classes:/app/libs/*, net.ameizi.k8s.example.K8sExampleApplication][INFO][INFO] Built and pushed image as registry.hub.docker.com/aimeizi/k8s-example[INFO][INFO][INFO] --- jib-maven-plugin:2.2.0:dockerBuild (default-cli) @ k8s-example ---[INFO][INFO] Containerizing application to Docker daemon as registry.hub.docker.com/aimeizi/k8s-example...[WARNING] Base image 'openjdk:8-jdk-alpine' does not use a specific image digest - build may not be reproducible[INFO] Getting manifest for base image openjdk:8-jdk-alpine...[INFO] Building dependencies layer...[INFO] Building resources layer...[INFO] Building classes layer...[INFO] The base image requires auth. Trying again for openjdk:8-jdk-alpine...[WARNING] The credential helper (docker-credential-desktop) has nothing for server URL: registry-1.docker.ioGot output:credentials not found in native keychain[INFO] Using credentials from Docker config (/Users/amz/.docker/config.json) for openjdk:8-jdk-alpine[INFO] Using base image with digest: sha256:44b3cea369c947527e266275cee85c71a81f20fc5076f6ebb5a13f19015dce71[INFO][INFO] Container entrypoint set to [java, -cp, /app/resources:/app/classes:/app/libs/*, net.ameizi.k8s.example.K8sExampleApplication][INFO] Loading to Docker daemon...[INFO][INFO] Built image to Docker daemon as registry.hub.docker.com/aimeizi/k8s-example[INFO][INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time: 03:12 min[INFO] Finished at: 2020-05-07T11:12:33+08:00[INFO] ------------------------------------------------------------------------Tags used in deployment:- registry.hub.docker.com/aimeizi/k8s-example -> registry.hub.docker.com/aimeizi/k8s-example:1ab1c78361f6855399f7865c3abb1b8bc6693cfc6b90edcd37fa81a98379668bStarting deploy...- deployment.apps/k8s-example created- service/k8s-example createdWaiting for deployments to stabilize...- deployment/k8s-example: waiting for rollout to finish: 0 of 1 updated replicas are available...- deployment/k8s-example is ready.Deployments stabilized in 1.262264304sPort forwarding service/k8s-example in namespace default, remote port 80 -> address 127.0.0.1 port 4503Watching for changes...[k8s-example-8469866549-s8v6s k8s-example][k8s-example-8469866549-s8v6s k8s-example] . ____ _ __ _ _[k8s-example-8469866549-s8v6s k8s-example] /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \[k8s-example-8469866549-s8v6s k8s-example] ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \[k8s-example-8469866549-s8v6s k8s-example] \\/ ___)| |_)| | | | | || (_| | ) ) ) )[k8s-example-8469866549-s8v6s k8s-example] ' |____| .__|_| |_|_| |_\__, | / / / /[k8s-example-8469866549-s8v6s k8s-example] =========|_|==============|___/=/_/_/_/[k8s-example-8469866549-s8v6s k8s-example] :: Spring Boot :: (v2.2.6.RELEASE)[k8s-example-8469866549-s8v6s k8s-example][k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:38.122 INFO 1 --- [ restartedMain] n.a.k8s.example.K8sExampleApplication : Starting K8sExampleApplication on k8s-example-8469866549-s8v6s with PID 1 (/app/classes started by root in /)[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:38.128 INFO 1 --- [ restartedMain] n.a.k8s.example.K8sExampleApplication : No active profile set, falling back to default profiles: default[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:38.208 INFO 1 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:38.208 INFO 1 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:39.900 INFO 1 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:39.922 INFO 1 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat][k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:39.922 INFO 1 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.33][k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:40.022 INFO 1 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:40.022 INFO 1 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1814 ms[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:40.922 INFO 1 --- [ restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:41.226 INFO 1 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:41.236 INFO 1 --- [ restartedMain] o.s.b.a.e.web.EndpointLinksResolver : Exposing 13 endpoint(s) beneath base path '/actuator'[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:41.336 INFO 1 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''[k8s-example-8469866549-s8v6s k8s-example] 2020-05-07 03:12:41.346 INFO 1 --- [ restartedMain] n.a.k8s.example.K8sExampleApplication : Started K8sExampleApplication in 3.714 seconds (JVM running for 4.57)
根据日志输出发现Port forwarding service/k8s-example in namespace default, remote port 80 -> address 127.0.0.1 port 4503。
$ curl http://127.0.0.1:4503/hellohello,kubernetes!
修改应用中的代码，并再次观察其输出
$ curl http://127.0.0.1:4503/hellohello,Skaffold!
发现，程序修改后会自动重新构建并部署应用。
当skaffold进程结束后会自动清理
^CCleaning up...WARN[0802] signal: interrupt- deployment.apps "k8s-example" deleted- service "k8s-example" deleted
执行 debug
$ skaffold debug --port-forwardListing files to watch...Generating tags...- registry.hub.docker.com/aimeizi/k8s-example -> registry.hub.docker.com/aimeizi/k8s-example:latestSome taggers failed. Rerun with -vdebug for errors.Checking cache...- registry.hub.docker.com/aimeizi/k8s-example: Found LocallyTags used in deployment:- registry.hub.docker.com/aimeizi/k8s-example -> registry.hub.docker.com/aimeizi/k8s-example:8c60b1d982f01598222d196f322372427252593e6de28599f49cca8a45ea3229Starting deploy...- deployment.apps/k8s-example created- service/k8s-example createdWaiting for deployments to stabilize...- deployment/k8s-example: waiting for rollout to finish: 0 of 1 updated replicas are available...- deployment/k8s-example is ready.Deployments stabilized in 1.845665959sPort forwarding service/k8s-example in namespace default, remote port 80 -> address 127.0.0.1 port 4503Watching for changes...Port forwarding pod/k8s-example-5fbc9ff88b-pdv8m in namespace default, remote port 5005 -> address 127.0.0.1 port 5005[k8s-example-5fbc9ff88b-pdv8m k8s-example] Picked up JAVA_TOOL_OPTIONS: -agentlib:jdwp=transport=dt_socket,server=y,address=5005,suspend=n,quiet=y[k8s-example-5fbc9ff88b-pdv8m k8s-example][k8s-example-5fbc9ff88b-pdv8m k8s-example] . ____ _ __ _ _[k8s-example-5fbc9ff88b-pdv8m k8s-example] /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \[k8s-example-5fbc9ff88b-pdv8m k8s-example] ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \[k8s-example-5fbc9ff88b-pdv8m k8s-example] \\/ ___)| |_)| | | | | || (_| | ) ) ) )[k8s-example-5fbc9ff88b-pdv8m k8s-example] ' |____| .__|_| |_|_| |_\__, | / / / /[k8s-example-5fbc9ff88b-pdv8m k8s-example] =========|_|==============|___/=/_/_/_/[k8s-example-5fbc9ff88b-pdv8m k8s-example] :: Spring Boot :: (v2.2.6.RELEASE)[k8s-example-5fbc9ff88b-pdv8m k8s-example][k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:27.077 INFO 1 --- [ restartedMain] n.a.k8s.example.K8sExampleApplication : Starting K8sExampleApplication on k8s-example-5fbc9ff88b-pdv8m with PID 1 (/app/classes started by root in /)[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:27.090 INFO 1 --- [ restartedMain] n.a.k8s.example.K8sExampleApplication : No active profile set, falling back to default profiles: default[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:27.202 INFO 1 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:27.205 INFO 1 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:28.990 INFO 1 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:29.010 INFO 1 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat][k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:29.010 INFO 1 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.33][k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:29.115 INFO 1 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:29.115 INFO 1 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1905 ms[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:30.167 INFO 1 --- [ restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:30.650 INFO 1 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:30.664 INFO 1 --- [ restartedMain] o.s.b.a.e.web.EndpointLinksResolver : Exposing 13 endpoint(s) beneath base path '/actuator'[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:30.806 INFO 1 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''[k8s-example-5fbc9ff88b-pdv8m k8s-example] 2020-05-07 03:24:30.818 INFO 1 --- [ restartedMain] n.a.k8s.example.K8sExampleApplication : Started K8sExampleApplication in 4.549 seconds (JVM running for 5.451)
根据日志输出，在 ide 中进行设置即可
-agentlib:jdwp=transport=dt_socket,server=y,address=5005,suspend=n,quiet=y
浏览器地址栏输入http://127.0.0.1:4503/hello即可进入断点模式
执行如下命令创建目录
$ mkdir -p kustomize/base$ mv k8s/* kustomize/base$ rm -Rf k8s
在kustomize/base目录下创建kustomization.yaml文件，其内容为
apiVersion: kustomize.config.k8s.io/v1beta1kind: Kustomizationresources:- service.yaml- deployment.yaml
在kustomize/qa目录下创建update-replicas.yaml文件，其内容为
apiVersion: apps/v1kind: Deploymentmetadata:name: k8s-examplespec:replicas: 2
在kustomize/qa目录下创建kustomization.yaml文件，其内容为
apiVersion: kustomize.config.k8s.io/v1beta1kind: Kustomizationresources:- ../basepatchesStrategicMerge:- update-replicas.yaml
运行 Kustomize
执行构建
$ kustomize build ./kustomize/baseapiVersion: v1kind: Servicemetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:ports:- name: 80-8080port: 80protocol: TCPtargetPort: 8080selector:app: k8s-exampletype: LoadBalancerstatus:loadBalancer: {}---apiVersion: apps/v1kind: Deploymentmetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:replicas: 1selector:matchLabels:app: k8s-examplestrategy: {}template:metadata:creationTimestamp: nulllabels:app: k8s-examplespec:containers:- image: registry.hub.docker.com/aimeizi/k8s-example:latestname: k8s-exampleresources: {}status: {}
$ kustomize build ./kustomize/qaapiVersion: v1kind: Servicemetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:ports:- name: 80-8080port: 80protocol: TCPtargetPort: 8080selector:app: k8s-exampletype: LoadBalancerstatus:loadBalancer: {}---apiVersion: apps/v1kind: Deploymentmetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:replicas: 2selector:matchLabels:app: k8s-examplestrategy: {}template:metadata:creationTimestamp: nulllabels:app: k8s-examplespec:containers:- image: registry.hub.docker.com/aimeizi/k8s-example:latestname: k8s-exampleresources: {}status: {}
部署应用服务
$ kustomize build kustomize/qa | kubectl apply -f -service/k8s-example createddeployment.apps/k8s-example created
查看状态
$ watch -n 1 kubectl get allEvery 1.0s: kubectl get all swfeng.local: Thu May 7 15:48:05 2020NAME READY STATUS RESTARTS AGEpod/k8s-example-664b9f68d4-qzfqs 1/1 Running 0 116spod/k8s-example-664b9f68d4-s7xv7 1/1 Running 0 116sNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEservice/k8s-example LoadBalancer 10.100.196.38 localhost 80:32689/TCP 116sservice/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 15d
运行测试
$ curl http://127.0.0.1/hellohello,Skaffold!
此时发现k8s-example在两个Pod间具有LoadBalancer
清理资源
$ kustomize build kustomize/qa | kubectl delete -f -
默认情况下Skaffold使用kubectl部署应用，可以修改使用kustomize来部署应用。其具体操作如下，修改skaffold.yaml配置文件内容如下所示：
apiVersion: skaffold/v2beta3kind: Configmetadata:name: k-s-examplebuild:artifacts:- image: registry.hub.docker.com/aimeizi/k8s-examplejib:project: net.ameizi:k8s-exampledeploy:# kubectl:# manifests:# - k8s/deployment.yaml# - k8s/service.yamlkustomize:paths: ["kustomize/base"]profiles:- name: qadeploy:kustomize:paths: ["kustomize/qa"]
即修改deploy的kubectl属性为kustomize
测试Skaffold整合Kustomize后的效果
$ skaffold dev
注：以上命令默认执行kustomize/base目录下的配置
$ skaffold dev -p qa
注：以上命令执行kustomize/qa目录下的配置
检查版本信息
$ ktctl --versionKT Connect version kt-0.0.12
启动ktctl
$ sudo ktctl -d connect --method socks5Password:4:13PM INF Connect Start At 582634:13PM INF Client address 172.24.202.1214:13PM INF deploy shadow deployment kt-connect-daemon-qocry in namespace default4:13PM INF pod label: kt=kt-connect-daemon-qocry4:13PM INF pod: kt-connect-daemon-qocry-5f976c8848-nzn67 is running,but not ready4:13PM INF pod: kt-connect-daemon-qocry-5f976c8848-nzn67 is running,but not ready4:13PM INF pod: kt-connect-daemon-qocry-5f976c8848-nzn67 is running,but not ready4:13PM INF Shadow pod: kt-connect-daemon-qocry-5f976c8848-nzn67 is ready.4:13PM INF Fail to get pod cidr from node.Spec.PODCIDR, try to get with pod sample4:13PM DBG Child, os.Args = [ktctl -d connect --method socks5]4:13PM DBG Child, cmd.Args = [kubectl --kubeconfig=/Users/amz/.kube/config -n default port-forward kt-connect-daemon-qocry-5f976c8848-nzn67 2222:22]Forwarding from 127.0.0.1:2222 -> 22Forwarding from [::1]:2222 -> 224:13PM INF port-forward start at pid: 582664:13PM INF ==============================================================4:13PM INF Start SOCKS5 Proxy: export http_proxy=socks5://127.0.0.1:22234:13PM INF ==============================================================4:13PM DBG Child, os.Args = [ktctl -d connect --method socks5]4:13PM DBG Child, cmd.Args = [ssh -oStrictHostKeyChecking=no -oUserKnownHostsFile=/dev/null -i /Users/amz/.kt_id_rsa -D 2223 root@127.0.0.1 -p2222 sh loop.sh]Handling connection for 2222Warning: Permanently added '[127.0.0.1]:2222' (ECDSA) to the list of known hosts.4:13PM INF vpn(ssh) start at pid: 582684:13PM INF KT proxy start successful
根据日志输出在终端设置http_proxy环境变量，然后使用CLUSTER-IP:PORT访问应用
查看服务端口映射信息
$ watch -n 1 kubectl get allEvery 1.0s: kubectl get all swfeng.local: Thu May 7 16:17:54 2020NAME READY STATUS RESTARTS AGEpod/k8s-example-55697bcd6b-kwzhf 1/1 Running 0 5m18spod/kt-connect-daemon-izhxa-6f95f75678-k578z 1/1 Running 0 7m38spod/kt-connect-daemon-qocry-5f976c8848-nzn67 1/1 Running 0 4m34sNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEservice/k8s-example LoadBalancer 10.100.27.20 localhost 80:32106/TCP 5m18sservice/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 15d
命令行验证
$ export http_proxy=socks5://127.0.0.1:2223$ curl http://10.100.27.20:80/hellohello,Skaffold!
IDEA中与Kubernetes集群中的程序联调
ktctl在socks5模式下，会自动在当前路径下生成.jvmrc文件，该文件中会包含SOCKS5代理的相关JVM参数。其内容如下所示：
-DsocksProxyHost=127.0.0.1-DsocksProxyPort=2223
在 ide 中安装JVM Inject插件，在IDEA中启动Java程序时，该插件会自动加载当前项目根路径下的.jvmrc并追加到Java的启动参数中。具体如下所示
/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home/bin/java -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:52776,suspend=y,server=n -Dvisualvm.id=90478590646964 -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -DsocksProxyHost=127.0.0.1 -DsocksProxyPort=2223
之后可以在 ide 中直接访问k8s中的服务。
FROM openjdk:8-jdk-alpineVOLUME /tmpADD target/app.jar target/app.jarENTRYPOINT ["java","-agentlib:jdwp=transport=dt_socket,address=5005,server=y,suspend=n","-Djava.security.egd=file:/dev/./urandom","-Xms2g","-Xmx8g","-jar","target/app.jar"]
在 Service 中暴露端口
如本例可修改为
apiVersion: v1kind: Servicemetadata:creationTimestamp: nulllabels:app: k8s-examplename: k8s-examplespec:ports:- name: 80-8080port: 80protocol: TCPtargetPort: 8080- name: 5005-5005port: 5005protocol: TCPtargetPort: 5005selector:app: k8s-exampletype: LoadBalancer # LoadBalancer 不需要kubectl port-forward 直接用映射出来的 IP 和端口访问status:loadBalancer: {}
https://hackmd.io/@ryanjbaxter/spring-on-k8s-workshop
https://spring.io/blog/2020/01/27/creating-docker-images-with-spring-boot-2-3-0-m1
https://github.com/alibaba/kt-connect
http://ylzheng.com/2019/12/14/how-to-integration-with-kubernetes-from-idea/
https://itnext.io/remote-debugging-spring-boot-on-kubernetes-a5f96a40e5c0