Learn KUBELESS with Real Code Examples
Updated Nov 25, 2025
Practical Examples
Serverless REST API backend
Image processing triggered by object storage events
Periodic data cleanup with cron triggers
Kafka message processing pipeline
Email notification service using Kubernetes secrets
Troubleshooting
Check function logs with `kubectl logs`
Ensure triggers are correctly configured
Verify runtime compatibility
Check Kubernetes pod status
Confirm network and permissions settings
Testing Guide
Unit test functions locally
Deploy to Kubernetes dev namespace for integration tests
Invoke HTTP triggers using curl or Postman
Test message queue triggers with sample events
Validate scaling under load
Deployment Options
Kubernetes cluster (any provider)
Minikube for local development
Cloud-managed Kubernetes (EKS, GKE, AKS)
Namespace-based multi-tenant deployment
CI/CD pipeline for automated deployment
Tools Ecosystem
Kubeless CLI
kubectl for Kubernetes interaction
Prometheus and Grafana for monitoring
CI/CD tools for function deployment
YAML manifests for declarative configuration
Integrations
HTTP via Ingress or Kubernetes Service
Message queues like Kafka or NATS
Cron jobs for periodic triggers
Kubernetes Secrets and ConfigMaps
Prometheus metrics for observability
Productivity Tips
Use CLI for quick deployments
Define functions and triggers declaratively via YAML
Leverage Kubernetes namespaces for isolation
Monitor metrics to optimize scaling
Automate deployments with CI/CD pipelines
Challenges
Managing Kubernetes resource configurations
Debugging functions in distributed environment
Optimizing function cold-start performance
Ensuring secure access to triggers and secrets
Monitoring and scaling multiple functions efficiently