Learn OPENFAAS with Real Code Examples

Cold-start latency due to container startup

Scale-to-zero reduces resource usage

Horizontal scaling via replicas for concurrent requests

Resource limits configurable per function

Monitoring with Prometheus for performance metrics

Gateway can be secured with basic auth or OAuth

Functions isolated in containers

TLS recommended for HTTP requests

Role-based access control via Kubernetes

Secrets management supported via mounted secrets

Prometheus metrics collection

Grafana dashboards

Function logs via faas-cli or centralized logging

Monitor scaling events

Track HTTP request metrics and errors

Write modular, stateless functions

Use unit tests for function logic

Follow Docker best practices

Document triggers and inputs

Automate build and deployment via CLI or CI/CD