Kubernetes

How hard can it be? – Creating your own Kubernetes Operator with Ansible – Part 1

TheDatabaseMe
12. June 202213. June 2022

One can extend the power of Kubernetes using a so called Operator. A Operator is a piece of software, that runs constantly in a loop and checks for resources to manage. A Operator normally is written in GoLang, but the Operator Framework of Kubernetes enables you also to create one using Ansible roles or playbooks.

Let loose the squid – Deploy ArgoCD the declarative way

TheDatabaseMe
5. June 20225. June 2022

ArgoCD is a GitOps tool for Kubernetes. What this means and how it works to get Argo deployed on your Kubernetes cluster, that the topic of this article.

Lightweight Kubernetes cluster using kind and Ansible

TheDatabaseMe
22. April 202222. April 2022

Some days ago I was pushed to the kind project. A leightweight possibility to build a Kubernetes cluster on top of Docker for easy and fast testing Kubernetes deployments. I’ve written an Ansible role to install kind and create / delete clusters as you need.

Backup to S3 – Configure Zalando Postgres Operator Backup with WAL-G

TheDatabaseMe
26. March 20229. December 2022
28 Comments

Doing basebackups of Postgres databases enables you to do a Point-in-time recovery (PITR) of your database. Doing backups for your databases that have been deployed using the Zalando Postgres Operator, is a different beast. Here I show you how it’s done with a MinIO (self)hosted S3 compatible Object Storage.

Keep the Elephants in line – Deploy Zalando Postgres Operator on your Kubernetes cluster

TheDatabaseMe
13. March 202213. March 2022

The Zalando Postgres Operator helps you to deploy and manage your PostgreSQL databases easy and quick. In this guide, we will deploy a minimal setup of the Zalando Operator and a Demo Postgres cluster to work with.

SHORTY – How to deploy Portainer on Kubernetes

TheDatabaseMe
28. February 202228. February 2022
3 Comments

Another short instructionset on how to deploy Portainer on your Kubernetes Cluster. The special sauce is, that we don’t use the NodePort service type in favour for an Ingress ruleset. A scenario, which is not covered in the official documentation without needing Helm.

SHORTY – How to deploy Uptime-Kuma on Kubernetes

TheDatabaseMe
12. February 20222. June 2022
8 Comments

Quick instruction on how to deploy Uptime-Kuma on your Kubernetes cluster.

Öffne nochmal den Bifröst – Heimdall Dashboard in Kubernetes betreiben

TheDatabaseMe
6. February 20226. February 2022

In einem älteren Artikel habe ich gezeigt, wie man das beliebte Heimdall Dashboard mit wenig Aufwand auf Docker betreibt. Aus reinem Interesse wollte ich Heimdall auf meinen Kubernetes Cluster umziehen und anschließend mit einem offiziellen Let’s Encrypt Zertifikat signieren.

Kubernetes cert-manager mit Hetzner DNS nutzen

TheDatabaseMe
28. December 202128. December 2021
2 Comments

Mit Hilfe von cert-manager, können wir unsere Zertifikate auf einem Kubernetes Cluster automatisiert verwalten. Zusammen mit einem Ingress-Controller werden automatisch Let’s Encrypt Zertifikate für unsere Services erstellt und bei Ablauf automatisch erneuert. Cert-manager kann mit vielen verschiedenen DNS Anbietern ohne große Anpassung arbeiten, der DNS Dienst von Hetzner ist allerdings nicht dabei. Und darum geht es in diesem Beitrag.