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Traditional NodePort services in Kubernetes face critical limitations: each service requires a dedicated port, leading to port exhaustion, and they operate only at Layer 4 (TCP/UDP), lacking HTTP-aware routing capabilities. Ingress addresses these gaps by providing a Layer 7 HTTP(S) routing layer that abstracts external access through domain-ba ...

Storage Configuration This deployment uses NFS for persistent storage. Ensure a StorageClass named nfs-storage is already configured in your cluster. Create Namespace kubectl create namespace ops Configure RBAC Permissions Define a service account, cluster role, and binding to grant Jenkins necessary permissions: # ServiceAccount apiVersion: ...

DNS Resolution PhaseWhen a client attempts to reach a domain like app.example.com, it first queries a DNS server. The resolution yields different results based on the service exposure strategy:External IP (e.g., 198.51.100.10): Returned when the application is exposed externally via a LoadBalancer or an Ingress resource.Cluster-internal IP (e.g ...

This guide walks through deploying a containerized HTTP service on a Kubernetes cluster, covering container images, deployments, services, and ingres configuration. Building and Pushing the Container Image First, build the container image for your HTTP server and push it to a container registry. In this example, the image chengfengsunce/httpser ...

Securing Internal Pods with HTTPS via Ingress When the internal pods communicate over HTTPS, the Ingress must be configured accordingly to ensure proper handling of encrypted traffic. Below is an example configuration that sets up an NGINX Ingress to forward traffic to HTTPS backend services. apiVersion: networking.k8s.io/v1 kind: Ingress meta ...