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Showing posts with label kubeconfig. Show all posts
Showing posts with label kubeconfig. Show all posts
Monday, July 1, 2024

vSphere with Tanzu using NSX-T - Part34 - CPU and Memory utilization of a supervisor cluster

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vSphere with Tanzu is a Kubernetes-based platform for deploying and managing containerized applications. As with any cloud-native platform, ...
Saturday, June 22, 2024

vSphere with Tanzu using NSX-T - Part31 - Troubleshooting inaccessible TKC with expired control plane certs

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In the course of managing multiple Tanzu Kubernetes Clusters (TKC), I encountered an unexpected issue: the control plane certificates had ex...
Saturday, May 25, 2024

vSphere with Tanzu using NSX-T - Part30 - Troubleshooting inaccessible TKC with server pool members missing in the LB VS

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Encountering issues with connectivity to your TKC apiserver/ control plane can be frustrating. One common problem we've seen is the kube...
Saturday, November 18, 2023

vSphere with Tanzu using NSX-T - Part29 - Logging using Loki stack

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Grafana Loki is a log aggregation system that we can use for Kubernetes. In this post we will deploy Loki stack on a Tanzu Kubernetes clus...
Saturday, July 8, 2023

Kubernetes 101 Blog series

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Part1 - Create K8s cluster with kubeadm Part2 - Basic operations Part3 - Install kubectl on Windows Part4 - Kubectl autocomplete and alias P...
Sunday, May 7, 2023

Kubernetes 101 - Part9 - kubeconfig certificate expiration

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You can verify the expiration date of kubeconfig in the current context as follows: kubectl config view --minify --raw --output 'jsonpat...
Saturday, April 8, 2023

vSphere with Tanzu using NSX-T - Part24 - Kubernetes component certs in TKC

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The Kubernetes component certificates inside a TKC (Tanzu Kubernetes Cluster) has lifetime of 1 year. If you manage to upgrade your TKC atle...
Saturday, February 4, 2023

vSphere with Tanzu using NSX-T - Part23 - Supervisor cluster certificates expiry

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Note that the supervisor control plane component certificates will expire after one year.  Here is the VMware KB: https://kb.vmware.com/s/ar...
Sunday, November 13, 2022

vSphere with Tanzu using NSX-T - Part20 - Safely deleting NotReady nodes from a TKC

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In this article we will look at a TKC that is stuck at updating phase which has multiple Kubernetes nodes in NotReady state.  jtimothy-napp0...
Sunday, October 9, 2022

Working with Kubernetes using Python - Part 06 - Create namespace

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Following code snipet uses Python client for the kubernetes API to create namespace. You will need to specify the kubeconfig file and the ...
Sunday, September 25, 2022

Working with Kubernetes using Python - Part 05 - Get pods

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Following code snipet uses Python client for the kubernetes API to get all pods and pods under a specific namespace for a given context: f...
Saturday, June 11, 2022

Working with Kubernetes using Python - Part 04 - Get namespaces

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Following code snipet uses Python client for the kubernetes API to get namespace details from a given context: from kubernetes import cli...
Friday, April 8, 2022

Working with Kubernetes using Python - Part 03 - Get nodes

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Following code snipet uses kubeconfig python module to switch context and Python client for the kubernetes API to get cluster node detail...
Saturday, March 19, 2022

Working with Kubernetes using Python - Part 02 - Switch context

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Following code snipet uses kubeconfig python module and it takes the default kubeconfig file, and switch to a new context.  kubectl comman...
Friday, March 4, 2022

Working with Kubernetes using Python - Part 01 - List contexts

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Following code snipet uses Python client for the kubernetes API and it takes the default kubeconfig file, list the contexts, and active co...
Sunday, January 30, 2022

vSphere with Tanzu using NSX-T - Part14 - Testing TKC storage using kubestr

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In the previous posts we discussed the following: Part1 - Prerequisites Part2 - Configure NSX Part3 - Edge Cluster Part4 - Tier-0 Gateway an...