Category Archives: Computers

Sequential Updates

Say you want to upgrade all the servers. Straight yum upgrade or apt update. For example, in my inventory, I have servers grouped by OS. If I wanted to patch all the CentOS boxes sequentially, I’d run: For a Debian … Continue reading

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Homelab 2021

It’s that time again. It’s a year later and there have been quite a few changes in the Homelab. With the release of VMware 7, I needed to replace my servers with something a bit more current. I repurposed one … Continue reading

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Installing OKD4

Overview What I’m trying to accomplish here is to set up a homelab OpenShift type environment. I’m installing OKD4.7 in this case but OKD is an upstream of the Red Hat OpenShift so should be just fine for my use-case. … Continue reading

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LACP, Bonding, Bridges, and VLAN Tagging

Overview This article provides some brief information on setting up bonded interfaces in Linux, configuring Link Aggregation Control Protocol (LACP), and then setting up tagged VLANs. Many times there’s an assumption of knowledge. This article provides some background and resources … Continue reading

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Ansible Patterns

Overview One of the cool things with Ansible are Patterns. With Patterns, you can combine entries in your inventory file. Instead of having a bunch of tags specific to each site, you can instead have a list of servers in … Continue reading

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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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Ansible Tags – A Story

Started a new job back in October. The team is just me and another guy and the boss. And the other guy quit in December. The real good thing is it’s a small single project shop and pretty much all … Continue reading

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