Category Archives: Kubernetes

Kubernetes Upgrade to 1.20.6

Upgrading Kubernetes Clusters The following lists what software and pods will be upgraded during this quarter. Upgrade the Operating System. Upgrade Kubernetes. Upgrade kubeadm, kubectl, and kubelet RPMs from 1.19.6 to 1.20.6. kube-apiserver is upgraded from 1.19.6 to 1.20.6 automatically. kube-controller-manager is … Continue reading

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Kubernetes Preparation Steps for 1.20.6

Upgrading Kubernetes Clusters The purpose of this document is to provide the background information on what is being upgraded, what versions, and the steps required to prepare for the upgrade itself. These steps are only done once. Once all these … Continue reading

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Kubernetes Manual Upgrade to 1.20.6

Upgrading Kubernetes Clusters This documentation is intended to provide the manual process for upgrading the server Operating Systems, Kubernetes to 1.20.6, and any additional updates. This provides example output and should help in troubleshooting should the automated processes experience a … Continue reading

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Kubernetes Ansible Upgrade to 1.20.6

Upgrading Kubernetes Clusters This document provides a guide to upgrading the Kubernetes clusters in the quickest manner. Much of the upgrade process can be done using Ansible Playbooks. There are a few processes that need to be done centrally on … Continue reading

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Kubernetes Delete an etcd Member

On the Kubernetes cluster, one of the etcd members had a falling out and is reporting the data is stale. While troubleshooting, we came up with several ideas including just rebuilding the cluster. It’s not all that hard overall but … Continue reading

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Kubernetes Ansible Upgrade to 1.19.6

Upgrading Kubernetes Clusters This document provides a guide to upgrading the Kubernetes clusters in the quickest manner. Much of the upgrade process can be done using Ansible Playbooks. There are a few processes that need to be done centrally on … Continue reading

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Kubernetes Manual Upgrade to 1.19.6

Upgrading Kubernetes Clusters This documentation is intended to provide the manual process for upgrading the server Operating Systems, Kubernetes to 1.19.6, and any additional updates. This provides example output and should help in troubleshooting should the automated processes experience a … Continue reading

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Kubernetes Preparation Steps for 1.19.6

Upgrading Kubernetes Clusters The purpose of this document is to provide the background information on what is being upgraded, what versions, and the steps required to prepare for the upgrade itself. These steps are only done once. Once all these … Continue reading

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Kubernetes Upgrade to 1.19.6

Upgrading Kubernetes Clusters The following lists what software and pods will be upgraded during this quarter. Upgrade the Operating System Upgrade Kubernetes Upgrade kudeadm, kubectl, and kubelet RPMs from 1.18.8 to 1.19.6. Upgrade kubernetes-cni RPM from 0.8.6-0 to 0.8.7-0. kube-apiserver … Continue reading

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kubeadm kubelet Problem

Over the past year and a bit, I’ve been using kubeadm to build and upgrade my clusters starting with Kubernetes 1.14. I switched from the home grown scripts I’d initially created for the 1.2 installation and continued through 1.12 to … Continue reading

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