Can not disable Spring Cloud Kubernetes for local development

Describe the bug When starting the application and disabling Spring Cloud Kubernetes via spring.cloud.kubernetes.enabled=false it is still starting and failing to connect to the cluster.

Sample

2021-07-27 16:12:46.562  WARN 68851 --- [           main] ubernetesProfileEnvironmentPostProcessor : Not running inside kubernetes. Skipping 'kubernetes' profile activation.
2021-07-27 16:12:46.738  WARN 68851 --- [           main] o.s.c.k.f.Fabric8AutoConfiguration       : No namespace has been detected. Please specify KUBERNETES_NAMESPACE env var, or use a later kubernetes version (1.3 or later)

Application 0.6.2
Powered by Spring Boot 2.5.3

2021-07-27 16:03:56.605  WARN 67093 --- [           main] s.c.k.f.c.Fabric8ConfigMapPropertySource : Can't read configMap with name: [Scripts Engine] in namespace:[null]. Ignoring.

io.fabric8.kubernetes.client.KubernetesClientException: Operation: [get]  for kind: [ConfigMap]  with name: [Scripts Engine]  in namespace: [null]  failed.
	at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:64) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:72) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:205) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.get(BaseOperation.java:167) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.get(BaseOperation.java:90) ~[kubernetes-client-5.5.0.jar:?]
	at org.springframework.cloud.kubernetes.fabric8.config.Fabric8ConfigMapPropertySource.getData(Fabric8ConfigMapPropertySource.java:61) ~[spring-cloud-kubernetes-fabric8-config-2.0.3.jar:2.0.3]
	at org.springframework.cloud.kubernetes.fabric8.config.Fabric8ConfigMapPropertySource.<init>(Fabric8ConfigMapPropertySource.java:50) ~[spring-cloud-kubernetes-fabric8-config-2.0.3.jar:2.0.3]
	at org.springframework.cloud.kubernetes.fabric8.config.Fabric8ConfigMapPropertySourceLocator.getMapPropertySource(Fabric8ConfigMapPropertySourceLocator.java:51) ~[spring-cloud-kubernetes-fabric8-config-2.0.3.jar:2.0.3]
	at org.springframework.cloud.kubernetes.commons.config.ConfigMapPropertySourceLocator.getMapPropertySourceForSingleConfigMap(ConfigMapPropertySourceLocator.java:81) ~[spring-cloud-kubernetes-commons-2.0.3.jar:2.0.3]
	at org.springframework.cloud.kubernetes.commons.config.ConfigMapPropertySourceLocator.lambda$locate$0(ConfigMapPropertySourceLocator.java:67) ~[spring-cloud-kubernetes-commons-2.0.3.jar:2.0.3]
	at java.util.Collections$SingletonList.forEach(Collections.java:4856) [?:?]
	at org.springframework.cloud.kubernetes.commons.config.ConfigMapPropertySourceLocator.locate(ConfigMapPropertySourceLocator.java:67) [spring-cloud-kubernetes-commons-2.0.3.jar:2.0.3]
	at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:51) [spring-cloud-context-3.0.3.jar:3.0.3]
	at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:47) [spring-cloud-context-3.0.3.jar:3.0.3]
	at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:95) [spring-cloud-context-3.0.3.jar:3.0.3]
	at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:634) [spring-boot-2.5.3.jar:2.5.3]
	at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:403) [spring-boot-2.5.3.jar:2.5.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:337) [spring-boot-2.5.3.jar:2.5.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) [spring-boot-2.5.3.jar:2.5.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332) [spring-boot-2.5.3.jar:2.5.3]
	at de.etalytics.scriptsengine.ScriptsEngineKt.main(ScriptsEngine.kt:13) [main/:?]
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:?]
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399) ~[?:?]
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242) ~[?:?]
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224) ~[?:?]
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:?]
	at java.net.Socket.connect(Socket.java:609) ~[?:?]
	at okhttp3.internal.platform.Platform.connectSocket(Platform.java:130) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:263) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:183) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:224) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:108) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:88) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.Transmitter.newExchange(Transmitter.java:169) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:41) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at io.fabric8.kubernetes.client.utils.BackwardsCompatibilityInterceptor.intercept(BackwardsCompatibilityInterceptor.java:133) ~[kubernetes-client-5.5.0.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at io.fabric8.kubernetes.client.utils.TokenRefreshInterceptor.intercept(TokenRefreshInterceptor.java:42) ~[kubernetes-client-5.5.0.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at io.fabric8.kubernetes.client.utils.ImpersonatorInterceptor.intercept(ImpersonatorInterceptor.java:68) ~[kubernetes-client-5.5.0.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at io.fabric8.kubernetes.client.utils.HttpClientUtils.lambda$createApplicableInterceptors$6(HttpClientUtils.java:292) ~[kubernetes-client-5.5.0.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142) ~[okhttp-3.14.4.jar:?]
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117) ~[okhttp-3.14.4.jar:?]
	at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:229) ~[okhttp-3.14.4.jar:?]
	at okhttp3.RealCall.execute(RealCall.java:81) ~[okhttp-3.14.4.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.retryWithExponentialBackoff(OperationSupport.java:585) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:558) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:521) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:488) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:470) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.handleGet(BaseOperation.java:830) ~[kubernetes-client-5.5.0.jar:?]
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:200) ~[kubernetes-client-5.5.0.jar:?]
	... 18 more

2021-07-27 16:03:56.612  INFO 67093 --- [           main] b.c.PropertySourceBootstrapConfiguration : Located property source: [BootstrapPropertySource {name='bootstrapProperties-configmap.Scripts Engine.null'}]
2021-07-27 16:03:56.640  WARN 67093 --- [           main] ubernetesProfileEnvironmentPostProcessor : Not running inside kubernetes. Skipping 'kubernetes' profile activation.
2021-07-27 16:03:56.641  INFO 67093 --- [           main] d.e.s.ScriptsEngineKt                    : The following profiles are active: dev
2021-07-27 16:03:57.608  INFO 67093 --- [           main] o.s.b.w.e.t.TomcatWebServer              : Tomcat initialized with port(s): 8085 (http)

In my application.yaml file I have the following config:

spring:
  cloud:
    kubernetes:
      enabled: false

My gradle.build.kts dependency block looks like the following:

// Variables
extra["junitVersion"] = "5.7.2"
extra["kotestVersion"] = "4.6.0"
extra["springCloudVersion"] = "2020.0.3"

dependencyManagement {
    imports {
        mavenBom("org.junit:junit-bom:${property("junitVersion")}")
        mavenBom("org.springframework.cloud:spring-cloud-dependencies:${property("springCloudVersion")}")
    }
}

dependencies {
    // Spring
    implementation("org.springframework.boot:spring-boot-starter-actuator")
    implementation("org.springframework.boot:spring-boot-starter-validation")
    implementation("org.springframework.boot:spring-boot-starter-web")
    kapt("org.springframework.boot:spring-boot-configuration-processor")
    kapt("org.springframework:spring-context-indexer:5.3.9")

    // Spring logging
    implementation("org.springframework.boot:spring-boot-starter-log4j2")
    runtimeOnly("org.apache.logging.log4j:log4j-web:2.14.1")

    // Spring Cloud Kubernetes
    implementation("com.github.fkorotkov:k8s-kotlin-dsl:3.0.1")
    implementation("org.springframework.cloud:spring-cloud-starter-kubernetes-fabric8-config")

    // Kotlin
    implementation("org.jetbrains.kotlin:kotlin-reflect")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor")

    // JUnit
    testImplementation("org.junit.jupiter:junit-jupiter")

    // Spring
    testImplementation("org.springframework.boot:spring-boot-starter-test")

    // Mockk
    testImplementation("com.ninja-squad:springmockk:3.0.1")
    testImplementation("io.mockk:mockk:1.12.0")

    // kotest
    testImplementation("io.kotest:kotest-assertions-core-jvm:${property("kotestVersion")}")
}

I don’t get why I’m still seeing that error when developing locally because I disabled Spring Cloud Kubernetes for my understanding. It shouldn’t try to connect to the Cluster and fetch some config maps, why is it doing it anyways?

Thanks in advance.

[wind57]

@ryanjbaxter safe to close this one.

[wind57]

because reading from config maps and secrets happens at bootstrap phase (application.yaml is too “early” for that phase). You can read more about bootstrap phase in spring-cloud.