# Warning appear after integrating kubernets plugin **URL:** \ **Category:** Ask a question\ **Created:** [April 14, 2022, 8:30am UTC](https://community.jenkins.io/t/warning-appear-after-integrating-kubernets-plugin/2111 "2022-04-14T08:30:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![SalmaNairi](https://avatars.discourse-cdn.com/v4/letter/s/977dab/32.png) [@SalmaNairi](https://community.jenkins.io/u/SalmaNairi)\ **Post date:** [April 14, 2022, 8:30am UTC](https://community.jenkins.io/t/warning-appear-after-integrating-kubernets-plugin/2111/1 "2022-04-14T08:30:18Z")
Hi we have troubles with kubernetes plugin a node is connected and jobs can be run on cluster but he have some warnings : certs are added Failed to initialize Kubernetes secret provider java.net.UnknownHostException: kubernetes.default.svc: Name or service not known at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) at java.net.InetAddress.getAllByName0(InetAddress.java:1276) at java.net.InetAddress.getAllByName(InetAddress.java:1192) at java.net.InetAddress.getAllByName(InetAddress.java:1126) at okhttp3.Dns$1.lookup(Dns.java:40) at okhttp3.internal.connection.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:185) at okhttp3.internal.connection.RouteSelector.nextProxy(RouteSelector.java:149) at okhttp3.internal.connection.RouteSelector.next(RouteSelector.java:84) at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:215) at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135) at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114) at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:127) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at io.fabric8.kubernetes.client.utils.BackwardsCompatibilityInterceptor.intercept(BackwardsCompatibilityInterceptor.java:133) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at io.fabric8.kubernetes.client.utils.TokenRefreshInterceptor.intercept(TokenRefreshInterceptor.java:42) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at io.fabric8.kubernetes.client.utils.ImpersonatorInterceptor.intercept(ImpersonatorInterceptor.java:68) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at io.fabric8.kubernetes.client.utils.HttpClientUtils.lambda$createApplicableInterceptors$6(HttpClientUtils.java:286) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:257) at okhttp3.RealCall.execute(RealCall.java:93) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:541) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:504) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:487) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.listRequestHelper(BaseOperation.java:163) Caused: io.fabric8.kubernetes.client.KubernetesClientException: Operation: [list] for kind: [Secret] with name: [null] in namespace: [null] failed. ---
**Author:** ![halkeye](https://dub1.discourse-cdn.com/flex013/user_avatar/community.jenkins.io/halkeye/32/8_2.png) [@halkeye](https://community.jenkins.io/u/halkeye)\ **Post date:** [April 14, 2022, 4:36pm UTC](https://community.jenkins.io/t/warning-appear-after-integrating-kubernets-plugin/2111/2 "2022-04-14T16:36:06Z")
> [@SalmaNairi](#): > > ava.net.UnknownHostException: kubernetes.default.svc: Name or service not known Looks like it can’t access your kubeapi. Maybe your install needs a different url. Maybe it’s a DNS thing. But Jenkins can’t talk to the API to get the secrets. ---
**Author:** ![SalmaNairi](https://avatars.discourse-cdn.com/v4/letter/s/977dab/32.png) [@SalmaNairi](https://community.jenkins.io/u/SalmaNairi)\ **Post date:** [April 15, 2022, 7:59am UTC](https://community.jenkins.io/t/warning-appear-after-integrating-kubernets-plugin/2111/3 "2022-04-15T07:59:02Z")
Hi Gavin Mogan thanks for reply we use ip not DNS and when we test connection to kubeapi , connection is successfully established thanks