[controlplane] Wrote Static Pod manifest for component kube-controller-manager to "/etc/kubernetes/manifests/kube-controller-manager.yaml" - The kubelet is unhealthy due to a misconfiguration of the node in some way (required cgroups disabled) core-dns has correct configuration. [kubelet-check] It seems like the kubelet isn't running or healthy. Why can't sunlight reach the very deep parts of an ocean? e.g., @kubernetes/sig-contributor-experience- to notify the contributor experience sig, OR, specifying the label manually: /sig For the Ingress rules in this tutorial to work, the Nginx web server installation must be able to communicate with localhost. In your case, create a headless service and Endpoint for it inside the cluster: Your mongodb-service.yaml file should look like this: I have add IP you've mentioned in comment section. [preflight] Skipping pre-flight checks For more information, please see our [controlplane] Wrote Static Pod manifest for component kube-controller-manager to "/etc/kubernetes/manifests/kube-controller-manager.yaml" linuxk8s(kubernetes) - Is it appropriate to try to contact the referee of a paper after it has been accepted and published? kubernetes - kubectl : connection refused - Stack Overflow ***> wrote: You signed in with another tab or window. Cool. The output shows an Nginx response, confirming that the web server communicates with localhost. How to access host's localhost from inside kubernetes cluster I used Minikube to create the cluster and successfully exposed my frontend react app using ingress. kubeadm init --skip-preflight-checks, root@kubenode:~# ku get no By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. For in-cluster communication you are using ClusterIP service mode, which is default and you set it, so everything is OK here. You didn't specify what image you're using, whether it's a standard nginx webserver or something based on your custom image. /dev/sdb3 partition 29295612 0 -1, On CentOS 7 you can persist not to fail if swap is turned on by opening the following file: [controlplane] Wrote Static Pod manifest for component kube-apiserver to "/etc/kubernetes/manifests/kube-apiserver.yaml" Asking for help, clarification, or responding to other answers. [certificates] Using the existing front-proxy-ca certificate and key. I am trying to set up a hadoop single node on kubernetes. Apr 02 03:59:46 k8s-master kubelet[12180]: E0402 03:59:46.625500 12180 reflector.go:205] k8s.io/kubernetes/pkg/kubelet/kubelet.go:451: Failed to list *v1.Service: Get https://192.168.1.6:6443/api/v1/services?limit=500&resourceVersion=0: dial tcp 192.168.1.6:6443: getsockopt: connection refused -check the port is already open? The in the method 1 has to be replaced with one of these: bugs, feature-requests, pr-reviews, test-failures, proposals. add labels to your pod that are identical to service spec.selector. kubectl exec -it testpod --namespace mynamespace -- cat /etc/resolv.conf It's my first time setting up kubernetes and it's running on a single node yet. if you have any specific suggestions for kubeadm itself, please log them here: [certificates] Generated front-proxy-client certificate and key. [root@k8s-master kube]# kubeadm init --apiserver-advertise-address=0.0.0.0 --kubernetes-version=1.10.0 --pod-network-cidr 10.244.0.0/16 The port must be open, i also can see that hadoop name node is listening on 9000. systemctl restart kubelet Airline refuses to issue proper receipt. Unable to properly connect to Redis in Kubernetes, Accessing Redis cluster on Google Kubernetes Engine, Connection Refused error when connecting to Kubernetes Redis Service, Kubernetes can't connect redis on Cluster-IP of service, Connecting to redis from kubernetes cluster application, Redis in Kubernetes doesn't connect with node, Unable to connect Redis Instance from GKE pod - Connection to Redis failed after 2 failures.Last Error : (110) Operation timed out, Fail to connect to Redis in Kubernetes: Redis connection to localhost:6379 failed, AWS redis connection error on my Kubernetes cluster, Kubernetes pod cannot connect to service for another port. Is it better to use swiss pass or rent a car? Why is this Etruscan letter sometimes transliterated as "ch"? 21 kubectl interfaces with kube-apiserver for cluster management. The connection to the server localhost:8080 was refused - did you specify the right host or port? [certificates] Generated apiserver-kubelet-client certificate and key. [kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10255/healthz' failed with error: Get http://localhost:10255/healthz: dial tcp [::1]:10255: getsockopt: connection refused. Your mongodb is running on the Host machine and cannot be accessible using the localhost (or it's IP range) from inside a cluster pod or from inside vm. Why does CNN's gravity hole in the Indian Ocean dip the sea level instead of raising it? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Connect and share knowledge within a single location that is structured and easy to search. For example: "Tigers (plural) are a wild animal (singular)". [init] This might take a minute or longer if the control plane images have to be pulled. We read every piece of feedback, and take your input very seriously. Most probably, in your case it will be enough to do: systemctl restart kubelet was enough to get my installation working better. It will give you a command that you have run in your local command prompt/terminal. /etc/resolv.conf from redis-master-0. Unable to connect to pod or service - Discuss Kubernetes 3. Apr 02 04:00:06 k8s-master kubelet[12180]: E0402 04:00:06.646779 12180 reflector.go:205] k8s.io/kubernetes/pkg/kubelet/kubelet.go:460: Failed to list *v1.Node: Get https://192.168.1.6:644 To learn more, see our tips on writing great answers. And now the kubeadm working as expect. Is it proper grammar to use a single adjective to refer to two nouns of different genders? [kubeconfig] Wrote KubeConfig file to disk: "scheduler.conf" Have a question about this project? add labels to your pod that are identical to service spec.selector. What would naval warfare look like if Dreadnaughts never came to be? How does hardware RAID handle firmware updates for the underlying drives? [kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10255/healthz' failed with error: Get http://localhost:10255/healthz: dial tcp [::1]:10255: getsockopt: connection refused. [kubeconfig] Wrote KubeConfig file to disk: "scheduler.conf" Sign in You can launch something like busybox pod + kubectl exec to run commands inside it. - The kubelet is not running 592), How the Python team is adapting the language for an AI future (Ep. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In the circuit below, assume ideal op-amp, find Vout? [kubelet-check] It seems like the kubelet isn't running or healthy. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Obviously the one http_proxy exported in bash env is not working. - gcr.io/google_containers/kube-controller-manager-amd64:v1.8.0 [certificates] Valid certificates and keys now exist in "/etc/kubernetes/pki" There will only ever be one server but there can be many apps. What would naval warfare look like if Dreadnaughts never came to be? [kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10255/healthz/syncloop' failed with error: Get http://localhost:10255/healthz/syncloop: dial tcp [::1]:10255: getsockopt: connection refused. This works for me. Max validated version: 17.03 Is this mold/mildew? By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Apr 02 04:00:10 k8s-master kubelet[12180]: E0402 04:00:10.649449 12180 reflector.go:205] k8s.io/kubernetes/pkg/kubelet/kubelet.go:451: Failed to list *v1.Service: Get https://192.168.1.6: Apr 02 04:00:11 k8s-master kubelet[12180]: E0402 04:00:11.652206 12180 reflector.go:205] k8s.io/kubernetes/pkg/kubelet/config/apiserver.go:47: Failed to list *v1.Pod: Get https://192.168. Can a simply connected manifold satisfy ? Make sure that your NO_PROXY variable has value that have at least localhost,127.0.0.1,$master_ip,$pod_cidr,$service_cidr. Making statements based on opinion; back them up with references or personal experience. [kubeadm] WARNING: kubeadm is in beta, please do not use it for production clusters. Apr 02 04:00:06 k8s-master kubelet[12180]: E0402 04:00:06.645778 12180 reflector.go:205] k8s.io/kubernetes/pkg/kubelet/kubelet.go:451: Failed to list *v1.Service: Get https://192.168.1.6: When laying trominos on an 8x8, where must the empty square be? rev2023.7.24.43543. What's the DC of a Devourer's "trap essence" attack? I'm running minikube version: v1.31.1 on Debian 12.. Steps: $ kubectl get endpoints NAME ENDPOINTS AGE kubernetes 192.168.49.2:8443 45h mongo-nodeport-svc 10.244..42:27017 5h43m nr-demo-mean-api-1-svc <none> 43m nr-demo-mean-ui-1 10.244..65:80 63m nr-demo-mean-ui-1-svc <none> 76m . privacy statement. 192.168.1.101) but I don't think that's good solution, as earlier I didn't have to do that. [controlplane] Wrote Static Pod manifest for component kube-controller-manager to "/etc/kubernetes/manifests/kube-controller-manager.yaml" [kubelet-check] It seems like the kubelet isn't running or healthy. It only takes a minute to sign up. - 'systemctl status kubelet' if I running kubeadm with preflight checks ,the output is: Can consciousness simply be a brute fact connected to some physical processes that dont need explanation? There was one more thing that was not mentioned. [init] This often takes around a minute; or longer if the control plane images have to be pulled. timed out waiting for the condition, You can troubleshoot this for example with the following commands if you're on a systemd-powered system: If that is not intended, adjust your proxy settings. Everything works as expected until yesterday when I had to reinstall master node operating system. Yet when I attached the backend service's URL in "env" field in the frontend's deployment.yaml, it does not work. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I have tried running: You can use kubectl to deploy applications, inspect and manage cluster resources, and view logs. couldn't initialize a Kubernetes cluster. [etcd] Wrote Static Pod manifest for a local etcd instance to "/etc/kubernetes/manifests/etcd.yaml" Note: No environment variable is available to set --fail-swap-on=false while bringing cluster up. What is the smallest audience for a communication that has been deemed capable of defamation? Have considered following options for dev environment, Use localhost connect string to connect to mongodb, but it will refer to pod's own localhost not host's localhost, Use headless service and provide localhost ip and port in endpoint. is applicable only to FQDNs of Services, not Pods which have the following form: So in fact you're querying cluster dns about FQDN of the Service named testpod and not about FQDN of the Pod. @FalcoWinkler from where you are trying to connect to the service? Kubernetes Connection . Not the answer you're looking for? kube-apiserver-7-22 FATAL Exited too quickly (proce [kubelet-check] It seems like the kubelet isn't running or healthy. when you see the information like WARNING: Connection to "https:/xxxx:6443" uses proxy "https://xxxx:1080". Apr 02 04:00:13 k8s-master kubelet[12180]: E0402 04:00:13.376782 12180 kubelet.go:2125] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker