Siddharth Sah on Instagram: "Day 20: How to update Kernel configs without downtime 🧠⚙️ The Question: “How do you apply kernel-level changes (like TCP keep-alive) to a Kubernetes node pool safely without causing production downtime?” The Answer: > 1️⃣ Fail Fast: Implement validation in your CI image builds to catch configuration errors before the image even reaches the repository. 2️⃣ Blue/Green Rotation: Don’t update nodes in place. Spin up a new node pool with the updated sysctl configs, “tain