Author Archives: Freejack

Kubernetes Networking

Posted on November 20, 2022 by Freejack

Overview This article provides instructions in installing the networking layer to the Kubernetes clusters. Calico Networking You’ll need to install Calico which is the network layer for the cluster. There are two files you’ll retrieve from Tigera who makes Calico. … Continue reading →

Posted in Computers, Kubernetes | Tagged , | 1 Comment

Kubernetes Metrics Server

Posted on November 20, 2022 by Freejack

Overview The metrics server collects metrics from your kubernetes cluster. It’s also used by the Horizontal Pod Autoscaling (HPA) function to let you manage pods. Installation For my clusters, it’s a pretty simple configuration. I retrieve the components.yaml file from … Continue reading →

Posted in Computers, Kubernetes | Tagged , , , | 1 Comment

Installing Kubernetes

Posted on November 20, 2022 by Freejack

Overview This article provides instructions in building the Kubernetes cluster using kubeadm and any post installation requirements. Build Cluster On the first control plane node run the kubeadm command. After the first node has been initialized, the connect strings will … Continue reading →

Posted in Computers, Kubernetes, Uncategorized | Tagged , | 1 Comment

Preparing Kubernetes

Posted on November 20, 2022 by Freejack

Overview This article will provide a howto on preparing hosts to install Kubernetes 1.25.7 on CentOS 7 using kubeadm. I’ll be using CRI-O as the container environment and Calico for the network layer. A followup article will provide instructions in … Continue reading →

Posted in Computers, Kubernetes | Tagged | 1 Comment

Kubernetes Storage

Posted on November 20, 2022 by Freejack

Overview This article provides some quick instructions on creating an NFS server for use as Persistent Storage in Kubernetes. A different article will discuss creating Persistent Storage. Firewall Configuration For the NFS server, it only will be accessed by Kubernetes … Continue reading →

Posted in Computers, Kubernetes | Tagged , , | 1 Comment

Load Balancing Kubernetes

Posted on November 20, 2022 by Freejack

Overview This article provides instructions in how I set up my HAProxy servers (yes two) to provide access to the Kubernetes cluster. Configuration To emulate a production like environment, I’m configuring two HAProxy servers to provide access to the Kubernetes … Continue reading →

Posted in Computers, Kubernetes | Tagged , , , | 1 Comment

Docker Distribution

Posted on November 20, 2022 by Freejack

Overview At a prior job I used Artifactory to manage images. The nice thing about Artifactory is you can create a Virtual Repository in that you configure it to automatically pull images from a Remote Repository to make it available … Continue reading →

Posted in Computers, Docker | Tagged , | 1 Comment

Terraform Builds

Posted on November 20, 2022 by Freejack

Overview This article provides instruction on how to use Terraform to build virtual machines on VMware. Preparation I use templates to build virtual machines and have several templates in order to build systems quickly. I mainly had a single machine … Continue reading →

Posted in Computers, Terraform | Tagged , | 2 Comments

Kubernetes Index

Posted on November 20, 2022 by Freejack

Overview I keep trying to find documents and videos that do an installation of Kubernetes along with associated configurations and including ArgoCD for an environment like mine. This index shows the final Kubernetes installation (list of all pods) plus an … Continue reading →

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Python and Postgresql Index

Posted on October 23, 2022 by Freejack

Overview This is the index article that will provide links to individual articles on the conversion of one of my projects from a php/mysql(mariadb) to python and postgresql. There shouldn’t be too many however like my Kubernetes and ArgoCD series … Continue reading →

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