The Kubernetes cluster is created based on another network plug-in. In this mode, the pod CIDR block does not belong to the VPC CIDR block. The cross-host communication of pods depends on the route entries that are specified in the VPC route tables. The route entries for the Ku...
How to troubleshoot Kubernetes pods In Kubernetes, apodis the smallest and simplest unit in the object model. It represents a single process running in a cluster. While a pod is the smallest unit in the Kubernetes object model, it can hold one or more containers, and these containers share ...
What are unschedulable Pods and why is it important to address them? A Pod is unschedulable when it's been put into Kubernetes' scheduling queue, but can't be deployed to a node. This can be for a number of reasons, including: The cluster not having enough CPU or RAM available to me...
If you are into DevOps, you must be aware of Kubernetes.Kubernetesis anopen-sourcecontainer orchestration system for automating application deployment, scaling, and management. In this short tutorial, we will know how to troubleshoot and fix the connection issue once Kubernetes master node IP has ...
Unless they also have a "cluster-autoscaler.kubernetes.io/safe-to-evict": "true" annotation, pods that have a "cluster-autoscaler.kubernetes.io/safe-to-evict": "false" annotation. Diagnostic Steps (1) Check the machines that are stuck in the"Deleting"phase: ...
The role is "readonly" in AWS but I guess that should be good enough for connecting to the cluster. I have added the role to kubernetes' aws-auth and applied it (see below); though it would be awesome if the tool provided a more helpful error message if I fail to do so (or at...
Kubernetes the Hard Way:I would suggest you start with Kubernetes the Hard Way setup. It helps you understand all the configurations involved in bootstrapping a kubernetes cluster. If you want towork on production clusters, this lab will help you a lot. Also, it is ok if you are not abl...
Identify “noisy neighbors” that use up cluster resources Keep track of changes in managed clusters Get fast access to historical node-level event data Beyond node error remediations, Komodor can help troubleshoot a variety of Kubernetes errors and issues, acting as a single source of truth (...
there's a TON more to learn and the docs site has agreat set of tutorialsto continue with. Check those out, type deploying a cluster using kubeadm on some virtual machines, and when you're really ready to dive in deep check out theCertified Kubernetes Administrator certification. As Obi-Wa...
To troublesoot an outage : Check database instance status : connect to your Public Cloud Control Panel and explore your database services. Verify the status. Nominal status is Running; Check OVhcloud health statuses : when major outages occurs, they are listed on https://status.us....