Kubernetes Interview Questions and Answer Part – 7

What is the main reason why the Ingress API has not been developed beyond its original specification? It was delivered to test ingress use cases, but annotations took over and…

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Kubernetes Interview Questions and Answer Part – 4

Which of the following best describes Kubernetes from a licensing standpoint? Proprietary technology under a subscription license from Google, Inc Open-source under the OpenStack Foundation Proprietary technology under a subscription…

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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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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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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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Top 10 best DevOps Tools and Certification to Utilize In 2020 – 2021.

Here, I am going to tell you about Top 10 best DevOps Tools and Certification to Utilize In 2019 – 2020, which will be helpful for your Bright future. 1….

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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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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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