Posts for devops


Deploy a secure instance of Elasticsearch on Kubernetes

It's easy to deploy Elasticsearch on Kubernetes. You get yourself a copy of the Elastic Helm Charts…


Install Keycloak on CentOS 7 with MySQL backend

Keycloak is an open source Identity and Access Management solution aimed at modern applications and…


Use Kubernetes Certificate Manager to automatically add SSL/TLS certificates to ingresses

Kubernetes Certificate Manager (cert-manager) is a native Kubernetes controller helping you to issu…


Docker on CentOS 7 machine with XFS filesystem can cause trouble when d_type is not supported

At my work, we try to automate almost everything. We're using Docker to containerize our in-house d…


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 …