Contents - ethernetdude - Kapil Kanth

Kubernetes

Article 08 – Kubelet: The On-the-Ground Worker Agent

Executing the Orchestration Plan The control plane components are great at coordinating and planning. They decide which containers should run and where they should be placed. However, these decisions are just configurations saved in the etcd database. The API Server…

Kubernetes

Article 07 – Kube Scheduler: Smart Placement in a Dynamic World

Placing Workloads Manually When managing multiple machines, resource allocation is a constant challenge. Some servers have specialized hardware like GPUs, some have high storage limits, and others are low-resource virtual machines. If you deploy a heavy analytics workload that requires…

Kubernetes

Article 04 – Etcd in Action: High Availability and Cluster Topologies

The Single Point of Database Failure If you run a single instance of etcd in your cluster, you have a single point of failure. The moment the VM hosting that database crashes, your control plane goes offline. You won’t be…

Kubernetes

Article 03 – Etcd: The Single Source of Truth

Storing Highly Dynamic Cluster State In a cluster running hundreds of containers across dozens of nodes, tracking the active configuration is a massive challenge. You have to store IP addresses, security keys, pod configurations, and scaling states somewhere. If you…

Kubernetes

Article 02 – Container Runtimes: Docker, Containerd, and the CRI

The Bloated Translator Problem When Kubernetes was first built, Docker was the only game in town. The early Kubernetes source code was hardcoded to talk directly to Docker. But Docker is an entire developer toolchain, not just a bare container…

Terraform Practice Lab

TFLAB15-String Functions: Manipulating Text in HCL

String Functions: Manipulating Text in HCL 🔧 Terraform Core ⭐ Beginner join() split() format() replace() upper() / lower() substr() Scenario You are building a naming convention for resources. Bucket names must be lowercase with hyphens, tags need formatted strings, and…

terraform-practice-tests

Terraform Associate 004 — Practice Exam Set 4

🏗️ Terraform Associate 004 — Practice Exam Set 4 50 Questions · 60 Minutes · Pass Mark: 75% (38/50) ⏱ 60:00 0 / 50 answered Submit Exam