This tool facilitates the implementation of Kubernetes network policies to control pod-to-pod communication restrictions.
Kubernetes network policy - pod to pod communication restrictions
The primary use case for this tool is to enhance network security within Kubernetes clusters by defining and enforcing communication policies between applications. It is particularly useful for DevOps engineers and Kubernetes administrators who need to manage traffic flow and ensure secure interactions between microservices.
Ensure that the Kubernetes cluster has network policies enabled before applying the configurations. Testing the policies in a development environment is recommended before production deployment.
Create a Kubernetes cluster with network policy enabled using gcloud command
Create a namespace for your applications using kubectl
Deploy backend and frontend applications using kubectl apply commandsgcloud beta container clusters create mycluster --enable-network-policy --zone us-central1-a
Creates a new Kubernetes cluster with network policy enabled.
kubectl create ns games
Creates a new namespace called 'games'.
kubectl apply -f k8s.yaml
Deploys the backend API application.
kubectl apply -f k8s.yml
Deploys the frontend application.
kubectl apply -f 1-games-network-policy-deny-all.yaml
Applies a network policy that blocks all traffic between pods.
kubectl delete -f web-deny-all -n games
Deletes the deny-all policy for the frontend application.
kubectl apply -f 2-all-policy-from-api-to-app.yaml
Applies a network policy that allows traffic from the API to the frontend application.