Tag: DevOps

My 6-node Kubernetes cluster went dark after a master node rebooted for the first time in 1 year and 275 days. Here is the full incident timeline and the permanent fix.

SSL certificate validity just dropped to 200 days. Here's why CA/B Forum made the change and how to stay ahead using Sectigo or DigiCert.

How I implemented centralized logging for Kubernetes with Fluent Bit and Elasticsearch, solving the ephemeral logs problem and enabling multi-namespace log collection.

Solved Socket closed abruptly error when connecting to RabbitMQ 4.1.4. Learn why amqplib fails and how to migrate to CloudAMQP client for seamless integration.

Install Rancher with Docker, configure custom ports, and import existing Kubernetes clusters. Complete step-by-step guide for production-ready setup.

Learn how to install Kubernetes alongside a live Docker Swarm environment. This guide ensures zero downtime for production services during migration.