_CORE
AI & Agentic Systems Core Information Systems Cloud & Platform Engineering Data Platform & Integration Security & Compliance QA, Testing & Observability IoT, Automation & Robotics Mobile & Digital Banking & Finance Insurance Public Administration Defense & Security Healthcare Energy & Utilities Telco & Media Manufacturing Logistics & E-commerce Retail & Loyalty
References Technologies Blog Know-how Tools
About Collaboration Careers
CS EN
Let's talk

Kubernetes Services a Networking

12. 06. 2025 1 min read intermediate

Cloud Intermediate

Kubernetes Services a Networking

KubernetesServicesNetworking 3 min read

ClusterIP, NodePort, LoadBalancer a Kubernetes networking model.

Types Services

# ClusterIP — interní (default)
apiVersion: v1
kind: Service
metadata:
  name: api-service
spec:
  selector: {app: api}
  ports: [{port: 80, targetPort: 8080}]

# LoadBalancer — externí
---
apiVersion: v1
kind: Service
metadata:
  name: web-public
spec:
  type: LoadBalancer
  selector: {app: web}
  ports: [{port: 443, targetPort: 8080}]

DNS

Kubernetes automaticky vytváří DNS záznamy: service-name.namespace.svc.cluster.local. Ve stejném namespace stačí service-name.

Network Model

  • Každý pod má unikátní IP
  • Pody komunikují přímo (bez NAT)
  • Services poskytují stabilní endpoint
  • Network Policies řídí firewall pravidla

Summary

ClusterIP pro interní služby, LoadBalancer pro veřejné. Ingress controller pro HTTP routing.

Need Help with Implementation?

Our team has experience designing and implementing modern architectures. We’re happy to help.

Free Consultation

Share:

CORE SYSTEMS tým

Stavíme core systémy a AI agenty, které drží provoz. 15 let zkušeností s enterprise IT.