🛡 Kubernetes Networking ~ 🚧

Kubernetes networking is a critical aspect of managing containerized applications in a distributed environment. It ensures that containers within a Kubernetes cluster can communicate with each other, with external users, and with other services smoothly.

Let's explore the key concepts and components of Kubernetes networking:

Pod Networking:

• Pods share the same network namespace and can communicate via localhost.
• Kubernetes assigns each Pod a unique IP address for inter-node communication.
  Service Networking:
• Services provide stable endpoints for accessing Pods.
• ClusterIP, NodePort, and LoadBalancer are common Service types for internal and external access.
  Ingress Networking:
• Ingress manages external access to Services based on HTTP/HTTPS rules.
• Ingress controllers handle traffic routing to Services within the cluster.
  Network Policies:
• This defines rules for Pod-to-Pod communication and access to external resources.
• It enables fine-grained control over network traffic within the cluster.
  Container Network Interface (CNI):
• A standard for defining plugins that handle networking in container runtimes.
• Used by Kubernetes to manage network interfaces and IP addresses.
  Networking Plugins:
• Kube-Proxy manages network rules for routing traffic to Services.
• CoreDNS resolves DNS queries for Kubernetes Services and Pods.

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