Posts for devops


High Available MySQL database cluster to eliminate your next SPOF

In high-available production environments like a Software-as-a-Service Cloud environment, you have …


Extend Kubernetes Persistent Volumes

In Kubernetes it is possible to use Persistent Volumes to add persistent storage to your Docker …


Install CFSSL and CFSSLJSON - CloudFlare's KPI toolkit

Generating certificate signing requests (CSR), certificates and keys can be a hassle. CloudFlare …


Kubernetes cluster on OpenStack - Part 1

The last few weeks I'm working with Kubernetes and OpenStack. It's a steep learning curve to get a …


Request an API (bearer) token from GitLab JWT authentication to control your private Docker registry

My continuous integration and continuous delivery pipeline use Docker containers and a private …


Rancher and Rancher Compose command-line tools

For DevOps engineers like me, command-line tools help me to automate stuff. Rancher provides two …