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Passed CKA Exam

Posted on 28/02/2022 by Lisenet

Kick-starting the new year with CKA. Continue reading →

Posted in Kubernetes | Tagged CKA, Kubernetes | 12 Comments

CKA Practice Questions

Posted on 23/02/2022 by Lisenet

The goal of this post is to help you find the answer to the following question: am I ready for the CKA exam? Continue reading →

Posted in Kubernetes | Tagged CKA, Etcd, kubelet, Kubernetes | 8 Comments

OpenVPN Server on Kubernetes

Posted on 18/02/2022 by Lisenet

OpenVPN server in a Docker container running on Kubernetes. Continue reading →

Posted in Kubernetes, OpenVPN | Tagged homelab, Kubernetes, OpenVPN | Leave a comment

Speedtest with InfluxDB and Grafana on Kubernetes

Posted on 28/12/2021 by Lisenet

We are going to use our Kubernetes homelab to run speed tests and store results in InfluxDB. We will then configure Grafana with InfluxDB datasource to visualise data. Continue reading →

Posted in Kubernetes | Tagged Docker, Grafana, homelab, InfluxDB, Kubernetes, Python, speedtest-cli | Leave a comment

Add Second Disk to Existing TrueNAS Pool in Mirror Configuration (RAID1)

Posted on 04/12/2021 by Lisenet

We’re going to add a mirror disk to an existing TrueNAS ZFS pool. Continue reading →

Posted in Linux | Tagged homelab, RAID, TrueNAS | Leave a comment

Upgrading Homelab Kubernetes Cluster from 1.21 to 1.22

Posted on 22/11/2021 by Lisenet

Calico 3.21 has been released with support for Kubernetes 1.22. Continue reading →

Posted in Kubernetes | Tagged Calico, homelab, kubeadm, Kubernetes | Leave a comment

Install Kubecost to Help Optimise Kubernetes Applications

Posted on 31/10/2021 by Lisenet

Resource and cost allocation should be a starting point before optimising Kubernetes applications. Continue reading →

Posted in Kubernetes | Tagged helm, homelab, Kubecost, Kubernetes | 2 Comments

Use External Labels with Prometheus Alerts

Posted on 17/10/2021 by Lisenet

We are going to customise Prometheus alerts by using external labels. Continue reading →

Posted in Kubernetes, Monitoring | Tagged homelab, Kubernetes, Prometheus | 4 Comments

Blue/Green Deployment with Istio: Match Host Header and sourceLabels for Pod to Pod Communication

Posted on 06/09/2021 by Lisenet

We are going to deploy two versions of the application, blue and green, and configure Istio routing so that both versions could be accessed at the same time. Continue reading →

Posted in Kubernetes | Tagged DestinationRule, homelab, Istio, Kubernetes, sourceLabels, VirtualService | Leave a comment

Migrating HA Kubernetes Cluster from CentOS 7 to Rocky Linux 8

Posted on 27/06/2021 by Lisenet

Personally, Rocky Linux 8 is the most anticipated software release of the year! Continue reading →

Posted in Kubernetes | Tagged homelab, Kubernetes, Rocky Linux | 2 Comments

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