Questions tagged [kubeadm]

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upgrade k8s cluster version

I've upgraded our kubernetes cluster before to 1.22.7 and get nodes says so. kubectl get nodes ubd Ready 337d v1.22.7 Now I wanted to upgrade to 1.23.7 so I did the following steps on master ...
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Update Docker Desktop Kernetes API Server Certificate

I’m trying set a Kubernetes cluster up on my local network. For convenience I used Docker Desktop create the cluster, which is working great. I need to allow connections from my local network to the ...
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Kubernetes the hard way, how different to production like kubernetes cluster?

I am learning about kubernetes clusters and tried two alternatives to create the cluster. Kubeadm and Kubernetes the hard way. I see the following description in the repository of kubernetes the hard ...
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1 answer
72 views

How do I modify the environment variables of a Kubernetes cluster?

I created my cluster through kubeadm. Before the creation of the cluster I set an environment variable ~/.bashsrc. The variable I set is NO_PROXY. When the cluster is created this variable gets picked ...
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396 views

kubelet connecting to docker.sock instead of containerd.sock

Kubernetes version: latest Installation method: kubeadm Host OS: debian9 container runtime: containerd Kubelet fails when starting and after inspecting the logs using journalctl -xeu kubelet i see ...
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324 views

Failed to install kubernetes on centos

Following the official documentation, I have an error when trying to install kubernetes cluster yum package. I am on Centos 7 using yum. So I run this commands: cat <<EOF | sudo tee /etc/yum....
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kubeadm init fails when using cri-o

I've been following this doc to deploy kubernetes https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/ After launching the "kubeadm init" command and during its ...
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2 votes
2 answers
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Error from server (Forbidden): error when retrieving current configuration of: Resource: "apps/v1, Resource=deployments",

I integrate the existing kubernetes cluster to the gitlab instance (omnibus). I get the below error in the deployment stage of CI/CD pipeline: Error from server (Forbidden): error when retrieving ...
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2 votes
2 answers
607 views

How to introduce(join) new worker node to an existing k8s cluster with selective scheduling only

Given a working Kubernetes cluster consisting of a master and some workers. We need to add a node to run a very specific pod and be part of the cluster for networking reasons. Then being largely ...
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