Name: Implementing Network Policies For Kubernetes
Author: mukul975

Overview

Kubernetes NetworkPolicies provide pod-level network segmentation by defining ingress and egress rules that control traffic flow between pods, namespaces, and external endpoints. Combined with CNI plugins like Calico or Cilium, network policies enforce zero-trust microsegmentation to prevent lateral movement within the cluster.

When to Use

When deploying or configuring implementing network policies for kubernetes capabilities in your environment
When establishing security controls aligned to compliance requirements
When building or improving security architecture for this domain
When conducting security assessments that require this implementation

Prerequisites

Kubernetes cluster with NetworkPolicy-supporting CNI (Calico, Cilium, Antrea)
kubectl configured with admin access
Understanding of pod labels and selectors

Workflow

Step 1: Default Deny All Traffic

Overview

When to Use

When deploying or configuring implementing network policies for kubernetes capabilities in your environment
When establishing security controls aligned to compliance requirements
When building or improving security architecture for this domain
When conducting security assessments that require this implementation

Prerequisites

Kubernetes cluster with NetworkPolicy-supporting CNI (Calico, Cilium, Antrea)
kubectl configured with admin access
Understanding of pod labels and selectors

Implementing Network Policies For Kubernetes

Overview

When to Use

Prerequisites

Workflow

Step 1: Default Deny All Traffic

Implementing Network Policies For Kubernetes

Overview

When to Use

Prerequisites

Workflow

Step 1: Default Deny All Traffic

Helm Chart Scaffolding

Python Observability

K8s Manifest Generator

Istio Traffic Management

Secrets Management

Gitops Workflow