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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Kubernetes supports Windows containers
With the release of Kubernetes v1.14, Windows Server node support has officially graduated from beta to stable! This support enables developers and operators with Windows Server based applications to containerize…
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Kubernetes volume hostPath explained with examples
The hostPath volume mounts a resource from the host node filesystem. the resources could be directory, file socket, character, or block device. These resources mu A hostPath volume mounts a…
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Kubernetes volume emptyDir explained with examples
Here are the following facts for emptyDir storage type in Kubernetes An emptyDir volume is first created when a Pod is assigned to a Node and initially its empty A…
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Working with multiple virtual Kubernetes clusters aka Namespaces
Kubernetes supports multiple virtual clusters backed by the same physical cluster. These virtual clusters are called namespaces. Namespaces ca be used in multiple environment with many users spread across multiple…
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How to check Containers readiness inside a pod using readinessProbe?
A Probe is a diagnostic performed periodically by the kubelet on a Container. To perform a diagnostic, the kubelet calls a Handler implemented by the Container. There are three types…
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How to check Containers health inside a kubernetes pod using livenessProbe?
A Probe is a diagnostic performed periodically by the kubelet on a Container. To perform a diagnostic, the kubelet calls a Handler implemented by the Container. There are three types…
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Do you know Container Linux (CoreOs) and Tectonic journey towards OpenShift?
The CoreOS corporation was acquired by Red Hat in May 2018 for $250 million; post-acquisition, the main enterprise Container Linux distribution, combined with Red Hat’s similar Project Atomic, has been…
Read more »Certified Kubernetes Administrator CKA Exam Curriculum
Certified Kubernetes Administrator CKA Exam Curriculum Reference https://www.cncf.io/certification/cka/ https://github.com/certifications-tutorials/kubernetes-curriculum
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How to Autoscale pods based on CPU/Memory in Kubernetes?
CPU Based Scaling With Horizontal Pod Autoscaling, Kubernetes automatically scales the number of pods in a replication controller, deployment or replica set based on observed CPU utilisation. [code]$ kubectl get…
Read more »List of Best Alternatives of Kubernetes
Here are some of the known best alternative of Kubernetes which incudes. Docker Swarm A swarm is a group of machines that are running Docker and joined into a cluster….
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Alternative of Docker in Kubernetes
Since v1.6.0, Kubernetes has enabled the use of CRI, Container Runtime Interface, by default. The container runtime used by default is Docker, which is enabled through the built-in dockershim CRI…
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How to setup Kubernetes Dashboard in EKS using NodePort?
How to setup Kubernetes Dashboard in EKS using NodePort? Step 1: Deploy the Dashboard# Deploy the Kubernetes dashboard to your cluster: [code]kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml[/code] # Deploy heapster to enable…
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What is Annotations in Kubernetes?
What is Annotations in Kubernetes? There are two way using you can attach metadata to Kubernetes objects. labels annotations Kubernetes annotations is used to attach arbitrary non-identifying metadata to objects….
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What is EKS and How EKS can help you?
In simple line, Amazon EKS is generally available, bringing fully-managed Kubernetes to AWS. Amazon launched Amazon EKS in November at its re:Invent 2017 conference. Till the time this article is…
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Kubernetes minikube errors and Solutions
Error 1 – Error starting host: Error getting state for host: machine does not exist [plain] <p style=”font-weight: 400;”>D:\kubernete>minikube-windows-amd64.exe start –kubernetes-version=”v1.8.0″ –vm</p> <p style=”font-weight: 400;”>-driver=”virtualbox” –alsologtostderr</p> <p style=”font-weight: 400;”>W0110 <span data-term=”goog_1571914274″>12:16:04.517163</span> 10504…
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Top 10 DevOps Tools which is mostly used by DevOps Engineers | DevOpsSchool
Introduction “DevOps” is an emerging model that allows effective collaboration of development and Operations team so that they can build, test, and release software faster and more reliably. Traditionally in…
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