Update the taints on one or more nodes in Kubernetes

What is meaning of taint? a trace of a bad or undesirable substance or quality. What is tainted? spoiled; damaged in quality, taste, or value: Follwing are workload which run…

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Setup NFS server and use inside a Kubernetes pods in RHEL/CENTOS7

Setup a NFS server in one of the node of Kubernetes Cluster using rhel 7.X Validate NFS server is working Manually Using NFS server in Kubernetes Pods

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Kubernetes Configmap explained using example

Content of reverseproxy.conf Commands to execute to create configmap Example pod using configmap Validating configmap inside a pod

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Detailed explaination of joining Kubernetes Nodes aka workers in Kubernetes master?

Step 1 – Install Docker https://www.devopsschool.com/tutorial/docker/install-config/ https://www.devopsschool.com/tutorial/docker/install-config/docker-install-commuityedition-centos-rhel.html Step 2 – How to find discovery-token-ca-cert-has in kubernetes master node? Mehtod 1 – Using openssl Method 2 – Using Ansible Python Filter…

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Kubernetes PersistentVolume and PersistentVolumeClaim using NFS volume types

Save the definition to a file, for example nfs-pv.yaml, and create the PV: $ kubectl create -f nfs-pv.yaml persistentvolume “pv0001” created $ get pv $ kubectl create -f nfs-claim.yaml Pods…

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Kubernetes Errors and Solutions Database

Kubernetes minikube errors and Solutions kubeadm error – kubelet isn’t running or healthy and connection refused EKS cluster setup error: the server doesn’t have a resource type “services minikube error…

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How to expose multiple port in services in kubernetes or Multi-Port Services

You have two options: You could have multiple services, one for each port. As you pointed out, each service will end up with a different IP address You could have…

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Kubernetes Resources Web References & Cheatsheet

Kubernetes custom resource definitions explained How To Install and Use Istio With Kubernetes

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How to setup Kubernetes clustors in HTTP Proxy corporate environment

HTTP Proxy corporate environment for kubernetes can be fixed by including all my cluster node IPs in NO_PROXY and using the same NO_PROXY on all the minions when joining the…

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kubernetes-yaml

Generate yaml file from existing Kubernetes resources of cluster?

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kuberentes-faq

Kubernetes FAQ

Question 1 – Add containers to a Kubernetes pod on runtime or Allow containers to be added to a running pod Answer: Adding or removing containers to a pod is…

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Kubernetes Interview Questions and Answer Part – 3

What is Kubernetes? What are Kubernetes Components? What is etcd? What is master & minion? How to make quorum of cluster? What is Replication controller & what it does? What…

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Kubernetes Interview Questions and Answer Part – 2

How you will link when the docker containers is in different virtual machine is there any configuration in docker compose file are any command or any variable? What you will…

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Kubernetes Interview Questions and Answer Part – 1

What is Kubernetes? Why Docker isn’t enough? Why do we need Kubernetes? Describe the architecture of Kuberenets How do you monitor your Kuberenets? What is kubectl? How do you use…

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How to delete/remove/clean existing corrupted or old kubeadm kubernetes clusters setup?

RHEL / Centos Ubuntu How to remove or cleanup kubernetes worker nodes in Centos 7? How to remove or cleanup kubernetes worker nodes in Ubuntu?

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Setting up Kubernetes Clusters using Kubeadm Manual way in RHEL 7 / Centos7

What is Kubeadm? Kubeadm helps you bootstrap a minimum viable Kubernetes cluster that conforms to best practices. Kubeadm is a tool built to provide kubeadm init and kubeadm join as…

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Setting up Kubernetes Clusters using Kubeadm Manual way in Ubuntu 16.04 Xenial

What is Kubeadm? Kubeadm helps you bootstrap a minimum viable Kubernetes cluster that conforms to best practices. Kubeadm is a tool built to provide kubeadm init and kubeadm join as…

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Kubernetes Errors: weave-net pod CrashLoopBackOff

Errors Solutions https://stackoverflow.com/questions/39872332/how-to-fix-weave-net-crashloopbackoff-for-the-second-node

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Kubernetes Errors: Kubernetes nodes are in ‘”network not ready” & “No networks found”

Errors Solutions https://stackoverflow.com/questions/47107117/how-to-debug-when-kubernetes-nodes-are-in-not-ready-state https://stackoverflow.com/questions/50085323/kubernetes-worker-node-staying-in-notready-state

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Kubernetes Error: kubeadm related errors and solutions

Error 1 Error 1 Error 2 Error 3 Solutions 3 Error 4 Solutions 4

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