Posts for devops


Backup Percona XtraDB Cluster or Galera Cluster with TwinDB

Database servers and clusters should be backed up regularly to prevent data loss when an error or d…


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 con…


Install CFSSL and CFSSLJSON - CloudFlare's KPI toolkit

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


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 Dock…