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Questions tagged [kubeadm]

OFF-TOPIC most likely. Kubeadm is a tool built to provide kubeadm init and kubeadm join as best-practice “fast paths” for creating Kubernetes clusters. Questions about installing or configuring Kubernetes clusters are generally not on-topic for Stack Overflow and should be asked on another site.

kubeadm is a tool to create Kubernetes clusters.

Questions about creating Kubernetes clusters are most likely off-topic for Stack Overflow and should be asked on another site:

If a developer needs to create their own Kubernetes cluster, they will typically use a higher-level tool such as , , or , rather than directly invoking kubeadm.

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Linkerd Dashboard is not accesible in kubernetes

I have a 2 nodes kubernetes cluster, 1 master node and 1 worker node which I have setup using kubeadm by using 2 ubuntu-18.04 instances from AWS. I have tried to install linkerd by using the getting started guide of the official docs and installed…
XANDER_015
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How to upgrade Kubernetes cluster v1.19.4 to 1.19.13

I'm trying to upgrade our Kubernetes kubeadm cluster from v-1.19.4 to v-1.19.13 on Ubuntu system with the below steps, i could able to upgrade my master host, however still worker hosts remain with same older version. On Master:- apt-mark unhold…
user4948798
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Can you create a multi-arch k8s cluster?

I’m new to creating k8s clusters and have want to try it at home. Master would be x86-64, then I have a number of small arm based systems (armv7, armv8, etc.). Can I hook all of these up into a single cluster use kubeadm?
drjrm3
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kubeadm init failing while initializing a Kubernetes cluster

execution logs from kubeadm init VM OS Version - RHEL 8.2 (4.18.0-193.el8.x86_64) Docker Version - 19.03.8 Kubernetes Version - 1.18.0 H/W Configuration - 4 CPU and 16 GB RAM (90% available) $$kubeadm init --kubernetes-version="v1.18.0"…
Balu R
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Error fetching nodes in kubernetes cluster. Connection refused Error

I am getting connection refused error while fetching the nodes of my kubernetes cluster from master. I have tried all debugging methods available in the internet but none seems working. I have one master node and 2 worker node setup in my…
Som
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Should we deploy Cluster Autoscaler for mater node and worker node separately?

For autoscaling the Kubernetes cluster created with kubeadm on AWS , I'm going through the cluster autoscaler there I saw master node setup.I created master node and worker node so master node is having one ASG and worker node will have one ASG .So…
HARINI NATHAN
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Kubernetes networking issue bridged adapter

I am working on setting up a multi-node, multi hardware server Kubernetes Cluster. I am using Calico and Kubeadm. So I am trying to use a bridge adapter within VMS to allow visibility over the network to a remote server using promiscuous mode and a…
Mohamed Zouari
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kubeadm upgrade plan - permission denied to /etc/kubernetes/admin.conf

I'm trying to get upgrade plan of my kubernetes cluster, but I got /etc/kubernetes/admin.conf permission denied error. Get upgrade plan. $ kubeadm upgrade plan couldn't create a Kubernetes client from file "/etc/kubernetes/admin.conf": failed to…
Lukasz Dynowski
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Why does Kubernetes return odd results for ioctl

I have a legacy application that I'm running inside a pod on Kubernetes deployed with kubeadm. The CNI is flannel. The code calls ioctl with SIOCGIFBRDADDR to get the broadcast address of the container interface. In vanilla Docker the correct…
Chris
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Kubernetes upgrade between versions

So the official documentation states: This page explains how to upgrade a Kubernetes cluster created with kubeadm from version 1.14.x to version 1.15.x, and from version 1.15.x to 1.15.y (where y > x). So the latter point about moving from say…
yee379
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How to deploy newly generated SSL certificate to the applications which are running under kubernetes cluster?

Need to deploy the newly generated SSL certificate to the applications which are running under kubernetes cluster. Is it possible to update the certificate using kubernetes dashboard? what is the kubectl or kubeadm command to update the new SSL…
Ramkumar D
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How to provide for 2 different IP ranges? --pod-network-cidr= for multiple IP ranges

I have 2 different IP sets in the same network. My kubeadm is in a different IP range than my other nodes. How shall I set the property here: kubeadm init --pod-network-cidr= cat /etc/hosts #kubernetes slaves ebdp-ch2-d587p.sys.***.net…
Meena Rajani
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Solutions to create a cluster split on 2 VMs

I'm looking for some clues on which solution can help me on my problem which is running a kubernetes cluster between 2 VMs. I'm beginning with Kubernetes and all its possibilities but like everybody I started from a minikube single-node cluster to…
Manu
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pod.containers.spec.resources doesn't work (limits and requests) Kubernetes

I'm trying to use resources limits and requests in the definition of my pod but It's like if the scheduler doesn't want to apply my specifications : kind: Pod apiVersion: v1 metadata: name: pod-lab5 namespace:…
Yummel
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Kubernetes networking and firewall issue

I try to expose a service. The goal is to access it from a cli (who know nothing about the cluster) with just his ip. I have create a deployment of the image and then create the service by exposing it with nodport type. When I expose it on port 80,…
zonko
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