All Questions
Tagged with kubernetes kubectl
77
questions
0
votes
0
answers
19
views
Is it possible to configure `kubectl exec` to behavior the same way as `ssh` when there is a client disconnect?
Empirically, it looks like kubectl exec and ssh behave differently on disconnects of the client.
I performed the following experiments.
SSH
# Terminal 1
ssh <random_host_in_aws>
bash -c 'sleep ...
- 273
0
votes
0
answers
14
views
K8 GCE deployment cluster failed to initalize after kube-up.sh
Running into a issue after running kube-up.sh script on Ubuntu 22.04. From what I can tell, after running kube-up.sh it creates my master & worker needs in Google Cloud successfully, but presents ...
google-cloud-platform
2
votes
1
answer
72
views
Deduplicating nodes listed in `kubectl top nodes`
I've set up a new kubernetes cluster using k3s. When I run kubectl top nodes there are 6 listed even though the cluster only has 4 nodes. Some of the hosts have changed hostnames since first being set ...
- 143
0
votes
0
answers
91
views
kubelet.service: Failed at step EXEC spawning /usr/bin/kubelet: No such file or directory
I am new to Kubernetes, And I am trying to run kubelet and I am facing huge difficulties. Need your help I tried to remove Kubernetes, and reinstall completly, but kubelet doesn't run at all.
...
0
votes
0
answers
328
views
How to clear older images io.containerd.snapshotter.v1.overlayfs folder in kubernetes
The vulnerability checks is picking up older version of apps/software which are from
/apps/data/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/XX/fs/usr/lib on our Kubernetes nodes.
We ...
- 101
0
votes
0
answers
308
views
RKE2 error- Waiting for API server to become available Waiting to retrieve kube-proxy configuration; server is not ready
Issue 1
In the high-availability RKE2 Kubernetes cluster, I have provisioned a single load balancer (1LB) and three master nodes. Initially, all components were functioning as expected. However, ...
1
vote
1
answer
102
views
Kubectl specify memory for horizontal pod
I’ve seen documentation that kubectl can specify flags such as the target average CPU utilization:
kubectl autoscale deployment <deployment> --cpu-percent=50 --min=1 --max=10
Why is there no ...
- 207
0
votes
0
answers
88
views
Tried to set up a K8 cluster from scratch on Ubuntu 22 but the kubelet is failing to register nodes
The kubelet service shows the below error
Apr 05 14:13:06 estk8worker0 kubelet[90209]: E0405 14:13:06.863258 90209 kubelet_node_status.go:92] "Unable to register node with API server" err=&...
- 1
0
votes
0
answers
28
views
Can't resolve service in Kubernetes
I have a pod that wants to connect to Redis, but we use dragonfly instead, but it can’t do that.
[2024-04-01 14:34:28.421 DEBUG common_server/src/db/redis_manager.rs:112] creating redis pool with ...
0
votes
0
answers
78
views
Kube-apiserver Unable to authenticate the requests, All workers NotReady Status
All of the workers status are NotReady.
Kubelet on worker node shows below problem.
Inspecting one of the workers kubelet shows below.
Seems to be kubelet cannot access kube-apiserver
$ curl -k ...
- 1
0
votes
0
answers
63
views
PVC is in terminating state and PV is in bound state in Kubernetes
I have the PVC which is in terminating state (because it is referenced from 3 other pods) and the PV is in bound state. PV has the retain reclaiming policy.
Also I am not sure on the reason for the ...
- 111
0
votes
1
answer
166
views
kubeProxy unable to get node ip
I currently running a k8s cluster setup where I have 3 master nodes and 3 worker nodes installed with Kubeadm. Each one of the master nodes is responsible for managing a worker node. In one of my ...
0
votes
0
answers
409
views
Pods getting restarted after containerd and kubelet service restarts
As part of configuration changes take place, both containerd and kubelet serivces need restart. Upon restarting services, all the pods running on the node getting restarted. I've checked the events ...
- 87
1
vote
2
answers
3k
views
Kubeadm and kubectl - connection refused
I deployed a basic cluster on two virtual machines (kvm) with one being designated as master with control plane on it using kubeadm init - everything sees to be starting correctly, but when I try to ...
- 154
0
votes
0
answers
333
views
Best practice to grant only necessary permissions to Kubernetes cluster user and pods?
Even though new to kubernetes clusters, I am assigned to deploy and administrate one for my lab. For now, pods with pytorch containers using gpus (those will be the most typical kind of pods to be ...
- 41
0
votes
1
answer
52
views
How to keep the .kube/config tidy after deleting a cluster?
In Microsoft Windows, I'm finding that as I create and delete AKS clusters that my .kube/config file is accumulating context entries for things that I've deleted.
I've tried using the following ...
- 111
0
votes
0
answers
90
views
Kubernetes Template for Custom Resources
in Kubernetes there is a way to get the template of the core resources like this:
kubectl create secret generic --dry-run=client --output=yaml
Is there a way to do the same for Custom Resources? I ...
- 101
0
votes
1
answer
235
views
Configure kubectl command to access remote minikube cluster on virtualbox debian VM
i have set up successfully on debian minikube with simple cluster
Debian VM :
umen@debian12:~$ kubectl get pods
NAME READY STATUS RESTARTS AGE
hello-77c947d946-jq2s4 1/1 ...
- 529
0
votes
1
answer
505
views
Facing error again in minikube renew certificate
When I run kubectl command getting error is certificate expired
How to debug minikube errors?
kubectl get pods
Unable to connect to the server: x509: certificate has expired or is not yet valid
- 15
0
votes
1
answer
545
views
How to find specific Kubernetes resource and "terminate/finalize" it when namespace deletion is stuck?
Hi I tried to delete some namespaces and they are stuck in terminating...
From the below details, I tried to delete the supposed rolebindings and roles, but they won't delete either and I don't know ...
- 293
0
votes
0
answers
357
views
Error running PostgreSQL Deployment in Kubernetes: "No such file or directory" for data directory
I am trying to deploy a PostgreSQL database using Kubernetes and encountered an error related to the data directory. Below is my YAML configuration for the Deployment:
apiVersion: apps/v1
kind: ...
- 11
0
votes
1
answer
513
views
AKS Kubectl command doesn't return completed pods
I am using AKS with Kubernetes v1.25.6 and I have started to see a number of pods with a Completed status. From what I understand these are generated when an exit 0 code is returned on the process the ...
- 193
1
vote
1
answer
395
views
Create Rancher API Key with kubectl
Given access to the kubernetes cluster, but no API key, how can I programatically create a API key for rancher server?
The method described in documentation here requires a password login an a web ...
- 249
0
votes
1
answer
872
views
Kubernetes component status reports etcd as unhealthy
I have a 3 node kube control network setup with etcd, kube-apiserver, kube-control-manager and kube-scheduler running. When I check the status of the components it says etcd is unhealthy, but etcd ...
- 113
0
votes
2
answers
1k
views
Unable to initialize Kubernetes cluster upon sudo kubeadm init line command
Trying to deploy Kubernetes on AWS EC2 instance. I'm seeing the following errors/warning when running sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --ignore-preflight-errors=all
Errors:
[WARNING ...
- 101
0
votes
1
answer
345
views
Local Kubernetes Dns failure on one of three worker nodes
I have a problem with my Kubernetes on-premise cluster created with kubespray.
I don't know why, but the dns resolutions is not working on one of my three nodes.
I try to mount a debug container to ...
0
votes
1
answer
364
views
Trying to install Kubernetes in RHEL 8.5 (CRI-O) - getting error
Trying to install Kubernetes in RHEL 8.5 (CRI-O) - getting error Error: Failed to download metadata for repo 'devel_kubic_libcontainers_stable: Downloading error(s): repodata/...
0
votes
0
answers
734
views
Kubernetes connection refuses often
I have configured Kubernetes using kubeadm in cent os stream 9. When I issue kubectl commands i am getting this error often
The connection to the server xx.xxx.xx.xx:6443 was refused - did you ...
0
votes
1
answer
2k
views
Forwarding apache logs from k8s Pod to Syslog server
I am new to Kubernetes, I know there are multiple ways to log collection. but I am specifically asking about my scenario. we have a Syslog xyz.com port 8090. now we want our pods to send logs to our ...
- 35
0
votes
0
answers
3k
views
Kubelete fails with code=exited, status=1/FAILURE
I have setup K8S on fedora 37, following a
Kubeadmi init
seems images are pulled and things seemed correct. However, when I try
Kubectl cluster-info
0406 11:58:52.440579 704658 memcache.go:265] ...
- 101
0
votes
0
answers
209
views
Multi cloud provider kubernetes cluster pod logs got timeout
Hi all i have master node in digital ocean and worker node in google cloud, nodes are connected using public ip of master node and pods are in running status but when i run kubectl logs i'm getting ...
0
votes
0
answers
628
views
k3s kubectl logs times out after 50 seconds
TLDR: Depending on my k3s version, kubectl logs -f drops back to the console (timeouts?) exactly after 50 seconds without new log entries, instead of remaining attached until a Ctrl-C is issued. I can'...
- 191
0
votes
1
answer
822
views
EKS cluster access - aws-auth : add groups in mapRoles
i try to access an EKS cluster on AWS with AWS Account (same i use for the console)
steps i followed :
aws configure with info provided in the "Command line or programmatic access" (AWS ...
- 81
0
votes
0
answers
986
views
Error While installing Calico CNI
I have a Kubernetes cluster with 1+1 configuration .
I used the following steps to install Calico
curl https://docs.projectcalico.org/manifests/calico-typha.yaml -o calico.yaml
kubectl apply -f calico....
- 13
0
votes
1
answer
948
views
Kubernetes Ingress not properly routing traffic
I am trying to host a simple website using Kubernetes. I am trying to use a K8s deployment, service and an ingress to route the traffic from the external into the application running inside the pod.
...
- 63
1
vote
1
answer
10k
views
Kubelet is in running state but kubectl is giving connection to the server refused error
Kubernetes cluster was working fine earlier, Started getting issues running kubectl commands after restarting the master node (1.0.0.0). When I run kubectl get nodes command I am getting below error.
...
Gopi
1
vote
1
answer
1k
views
kubernetes kubectl Undo --insecure-skip-tls-verify to enable TLS Verification once again after it has been disabled
For testing purposes I have disabled tls verification for my cluster by typing:
$ kubectl get nodes --insecure-skip-tls-verify
This was done to temporarily fix a problem with an invalid certificate.
...
- 21
-1
votes
1
answer
904
views
Sonarqube app pod is not connecting with PostgreSQL DB pod when deploying to Kubernetes
I am trying to setup SonarQube in a Kubernetes cluster. The cluster was made using KubeADM in the AWS cloud. I have the following files for the setup.
Sonarqube App Deployment file
Sonarqube App ...
- 63
0
votes
1
answer
3k
views
Fix the KubeletHasDiskPressure in Kubernetes on a very limited server
I have a question regarding our local Kubernetes installation (Kubelet version == 1.24.4).
We're having a Kubernetes installation installed using Kubespray.
I'm aware of a few related questions/...
1
vote
1
answer
2k
views
How to create a container-disk image for VMs provisioned using KubeVirt
I am trying to create a VM setup in my Kubernetes cluster using KubeVirt. I have two EC2 instances(Master node: t2.xlarge and worker node: m5.metal) in AWS cloud and I have setup the cluster using ...
- 63
0
votes
1
answer
2k
views
Cannot properly edit and save worker node specs in Kubernetes
I have a Kubernetes cluster setup using KubeAdm (Setup in EC2 instances in AWS Cloud). The CNI used is Flannel and the cluster is running quite well. My requirement is that I am trying to setup ...
- 63
0
votes
1
answer
2k
views
Calico Kubernetes Network Policy is denying all traffic and not working as expected
I am trying to implement some Calico based Kubernetes Network Policies. I have already setup Calico in my cluster and all the Calico based pods are running fine.
In my cluster, There are two pods.
1. ...
- 63
0
votes
0
answers
499
views
Calico deployment not saving tolerance for master node
I was trying to setup a Kubernetes Cluster using Amazon EC2 and Kubeadm.
I created a 't2.large' EC2 instance based on Ubuntu 18.04 AMI. Setup kubeadm, kubelet, kubectl and docker as the container ...
- 63
0
votes
2
answers
1k
views
Can I connect to several Kubernetes clusters simultaneously - each in different terminal session?
I have 4 kubernetes clusters I need to switch between to check or monitor - sometimes I quickly need to switch back and forth between them.
I see that the kubectl config context is 1 file for the user ...
- 178
-1
votes
1
answer
267
views
What is the Path API for kubectl top pods
I use this command "kubectl top pods" using Kubectl command
I need path api for this command
I need return data from this command "kubectl top pods" via api
1
vote
0
answers
755
views
EKS: kubectl exec does not respect streamingConnectionIdleTimeout
Using EKS with Kubernetes 1.21, managed nodegroups in a private subnet. I'm trying to set the cluster up so that kubectl exec times out after inactivity regardless of the workload being execed into, ...
- 11
0
votes
1
answer
548
views
disable deprecated resource automatic conversion
I’m trying to purposefully create K8S resources with deprecated apiVersion for test purposes, but keep ending up with a converted resource to the non-deprecated apiVersion. I don’t understand why it’s ...
- 143
4
votes
1
answer
3k
views
Kubernetes: Pod IP address is out of range specified in --pod-network-cidr
After upgrading to v1.24.0 (after Dockershim removal), I had to install cri-dockerd,
then I did the following:
sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --cri-socket=unix:///var/run/cri-...
- 101
0
votes
1
answer
5k
views
Kubernetes k3s master node fails to ready with FailedCreatePodSandBox errors
I'm trying to setup a small 4 worker node cluster atm and I just installed k3s on my raspberry pi 4s (8gb) and I'm getting a NotReady status. I'm new to kubernettes/k3s, but I believe with a totally ...
- 101
1
vote
2
answers
1k
views
which K3S ports should (not) be exposed on a public interface
The K3S documentation explains which ports are required for this kubernetes distribution to work.
What it does NOT explain is, which of these ports are OK to be open on a public interface.
K3S seem to ...
- 413
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