Seamless zero-downtime deployment on Kubernetes

Kubernetes offers orchestration for your applications, fantastic out-of-the-box sensible default that makes it a easy plug-and-play but in order to achieve seamless deployments that do not disrupt active users on their platforms and without losing in-flight requests,...

How to export Oracle Database query result to CSV

I recently had to perform a database load, an action whereby you take a query result/s from one database store and then migrate that to another database store. My idea was to automate it as this was usually done manually with a lot of clicky clicky and the query ran...

How to cleanup CRDs from a dead Operator deployment

I installed it using helm and so I proceeded to do the same to uninstall it and it pretty much worked all except the Custom Resource Definitions. The CRDs created by Rancher.io was a lot and kubectl delete crd was not cutting it and I needed a way to iterate through the list of crds

How to setup Zabbix 4 using Docker

Zabbix is an open-source monitoring software tool for diverse IT components, including networks, servers, virtual machines and cloud services. Zabbix provides monitoring metrics, among others network utilization, CPU load and disk space consumption.