ScuffedK8

Simplified Kubernetes in Go for learning container orchestration.

Quick Start

# Start scheduler
go run src/main.go

# Test scheduler algorithm
go run examples/basic_usage.go

# Test node communication
go run examples/ws_demo.go

API Endpoints

Endpoint	Description	Example
GET /	Server status	curl localhost:8080/
GET /health	Health check JSON	curl localhost:8080/health
GET /nodes	Connected nodes	curl localhost:8080/nodes
GET /workload?iterations=N	CPU-intensive pi calculation	curl localhost:8080/workload?iterations=10000000
WS /ws/node?node_id=X	Node WebSocket connection	See ws_demo.go

Testing

./test_endpoints.sh

Architecture

• src/main.go - HTTP server + WebSocket handler (like kube-apiserver)
• src/scheduler/scheduler.go - Pod scheduling algorithm (like kube-scheduler)
• examples/basic_usage.go - Scheduler demo
• examples/ws_demo.go - Node communication demo (like kubelet)

Features

main.go - API Server (Running on :8080)

HTTP endpoints: /, /health, /nodes, /workload WebSocket endpoint: /ws/node for node connections CPU workload simulation (Pi calculation) Connection tracking for nodes scheduler.go - Greedy Scheduler Algorithm Pod scheduling logic (greedy algorithm) Resource-based pod placement Priority-based scheduling basic_usage.go - Scheduler Test Demonstrates scheduling 3 pods to 2 nodes Shows resource allocation and assignments ws_demo.go - Node Simulation Simulates 2 worker nodes WebSocket connections to API server Sends heartbeat messages every 2 seconds