🌐 CKA Networking
Services & Networking
Learn how to connect and secure your applications in Kubernetes. Master service discovery, load balancing, and network policies.
Prerequisites
What You Should Know Before Starting
Essential knowledge for working with Services and Networking
- Understanding of Pods and Deployments
- Basic networking concepts (IP, DNS, ports)
- HTTP/HTTPS protocol knowledge
- Experience with kubectl commands
Learning Topics
Services
3-4 hours
Connecting applications and managing network traffic
Learning Objectives:
- •Service Types
- •ClusterIP Services
- •NodePort Services
- •LoadBalancer Services
- •Service Discovery
Ingress
2-3 hours
HTTP and HTTPS routing to services
Learning Objectives:
- •Ingress Controllers
- •TLS Termination
- •Path-based Routing
- •Host-based Routing
- •Annotations
Network Policies
2-3 hours
Securing network traffic between pods
Learning Objectives:
- •Network Policy Rules
- •Ingress Rules
- •Egress Rules
- •Pod Selectors
- •Namespace Isolation
DNS and Service Discovery
1-2 hours
How services are discovered and resolved
Learning Objectives:
- •CoreDNS Configuration
- •Service DNS Records
- •Pod DNS Records
- •External Name Services
Key Concepts
Service Types
Different ways to expose your applications within and outside the cluster.
- • ClusterIP - Internal cluster access
- • NodePort - External access via node ports
- • LoadBalancer - Cloud load balancer integration
- • ExternalName - External service mapping
Ingress Controllers
HTTP/HTTPS routing and load balancing for your applications.
- • Path-based routing
- • Host-based routing
- • TLS termination
- • SSL certificate management
Network Policies
Secure network traffic between pods and namespaces.
- • Ingress and egress rules
- • Pod and namespace selectors
- • Port and protocol restrictions
- • Default deny policies
DNS Resolution
How services are discovered and resolved within the cluster.
- • CoreDNS configuration
- • Service DNS records
- • Pod DNS records
- • Custom DNS policies
Ready to Continue?
Master Services and Networking, then learn about Storage and Volumes for persistent data.