Category Archives: Computers

Kubernetes Resource Management

Posted on April 23, 2020 by Freejack

Overview There are two objectives to Resource Management. Ensure sufficient resources are available for all deployed products and determine when additional resources are required. This document provides information based on the deployed Kubernetes cluster and is filtered for my specific … Continue reading →

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Homelab

Posted on March 12, 2020 by Freejack

Well, I figure I should list out my gear as I finally picked up my third R710 and got it running and attached. It’s a moderate setup compared to some I’ve seen here 🙂 I’m less a hardware/network guy and … Continue reading →

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My Tech Certifications – A History

Posted on October 5, 2019 by Freejack

I don’t as a rule chase technical certifications. As a technical person who’s been mucking about with computers since around 1981, and as someone who has been on the hiring side of the desk, certifications are similar to some college … Continue reading →

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Current Home Servers

Posted on April 30, 2019 by Freejack

This has come up several times and I can’t always remember all the servers I have set up for one reason or another. Many times it’s just because the subject I’m on has me listing the relevant servers plus a … Continue reading →

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Managing Dell Fan Speeds

Posted on April 28, 2019 by Freejack

Since the Dell Servers are in a rack behind me, I wanted to better manage the fan speeds. Dell has an Error temperature, a Warning temperature, and the Ambient temperature. Basically where Dell tries to keep the server temperature. Errors … Continue reading →

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Adding Projects To Jenkins

Posted on March 16, 2019 by Freejack

A majority of my projects are simple websites or scripts. Nothing too complicated. My binary files are located on my development server. Jenkins combines the git repo and binary files into a single distribution which is then sync’d up to … Continue reading →

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Kubernetes WorkerNode Sizing

Posted on February 12, 2019 by Freejack

Overview For the current Kubernetes clusters, I reviewed several industry best practices and went with a Worker Node resource configuration of 4 CPUs and 16 Gigabytes of RAM per worker node. In addition, I have a spreadsheet that describes all … Continue reading →

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Kubernetes 1.9.0 Installation

Posted on August 16, 2018 by Freejack

Overview After discussion between my manager and the SysEng management team, it’s been decided that I’m to take over the Kubernetes infrastructure. The one SysEng who’s still here has put in his time and the belief is that management of … Continue reading →

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DevOps Interview

Posted on June 25, 2018 by Freejack

Did my interview Friday. Interesting in general. No real OS questions but questions on Kubernetes and Docker and interest in Helm. Then an actual hands on test. Configure Jenkins to upload a file from a Github site to an Amazon … Continue reading →

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Installing Container Linux on VMware

Posted on March 5, 2018 by Freejack

I have a VMware vCenter configuration at home. Two R710 servers connected as a cluster (VMUG subscription). I was having a little trouble with installing CoreOS (aka Container Linux) and in general have issues due to most tutorials using Vagrant, … Continue reading →

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