Questions tagged [kubeadm]
117 questions
0
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Why kubectl is required to be installed on every node while setting up cluster using kubeadm?
According to kubernetes documentation here,
https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#installing-kubeadm-kubelet-and-kubectl
Setting up a Kubernetes cluster using kubeadm requires to install kubectl on…
0
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Run kubeadm upgrade node in second node point to first node
I am stuck in a problem and I have no idea how to solve it.
I am trying to upgrade my cluster from 1.15.7 to 1.16.12. I am using kubeadm to do it.
I am running in the first node (named k8s-1):
yum install -y kubeadm-1.16.12-0…
DevOpsTech
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1 answer
How to setup cri-o with kubeadm and kubelet on Kubernetes 1.18.2?
I am relatively new to Kubernetes and although that I am able to launch the master node (join workers / master nodes) by using the default socket (/var/run/dockershim.sock) I would like to use the cri-o socket (unix:///var/run/crio/crio.sock).
I…
Thanos
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What is the difference between kubeadm token create and kubeadm token generate?
I have recently starting experimenting with Kubernetes. I have a cluster and everything looks good. I am trying to create a fully automation Ansible script to join / remove workers / master nodes at any point in time.
So far I have managed to do so…
Thanos
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0
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1 answer
Calico-node pods not becoming READY until iptables is disabled - Kubernetes on RHEL 7
I have provisioned a Kubernetes cluster on RHEL 7 and deployed Calico to it. The calic-node pods running on the master and worker nodes do not become ready until I SSH into the master and temporarily disable iptables with systemctl stop iptables.
I…
TJ Zimmerman
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1 answer
Bootstrapping a Kubernetes cluster using Kubeadm on RHEL 7 - Issues with firewall
I'm trying to bootstrap a Kubernetes cluster on RHEL 7.8 but I'm having some issues with my firewall.
nftables is not supported in Kubernetes and iptables-legacy must be installed instead. While the iptables-legacy package exists in distros like…
TJ Zimmerman
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0
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1 answer
Kubernetes kube-proxy NodePort with IPv6
I am trying to expose a service using NodePort on a on premise bare metal kubernetes (1.17) cluster (calico for CNI and CRI-O 1.17)
All nodes (Ubuntu 18.04) have IPv4 and IPv6 adresses and are reachable (e.g. ssh) using both
Kubernetes has been…
chrstnwhlrt
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-1
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1 answer
Why does kubernetes readiness probe fail, when manually calling the exec command returns success code?
I used kubeadm to deploy a bare-metal cluster with one control plane node and one worker node on the same LAN. After initializing the cluster (kubeadm init on the cp and kubeadm join on the worker node), I installed calico via helm. The calico-node…
zckl902
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2 answers
kubeadm is showing [ERROR CRI]:
kubeadm init
[init] Using Kubernetes version: v1.26.2
[preflight] Running pre-flight checks
error execution phase preflight: [preflight] Some fatal errors occurred:
[ERROR CRI]: container runtime is not running: output: time="2023-03-01T08:28:38Z"…
Nikhil Soni
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1 answer
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 Secrets file
Sonarqube-PostgreSQL Deployment…
arjunbnair
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1 answer
Kube-proxy pod not starting v1.21.3
I have delete kube-proxy pod from my master nodes to get the new kube-proxy configmap values, when I reboot the node still kube-proxy is not coming up ?
How to start the kube-proxy?
# crictl ps
CONTAINER ID IMAGE CREATED …
sfgroups
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1 answer
Changing Kubernetes cluster IP addres
I have a single-node Kubernetes cluster that I need to change IP. I see that the current IP is within many configuration files, which is not a big problem. The bigger problem is that when I changed the address, I had an error that the certificate is…
Djent
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