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Enforcing Zero Trust Networking in Kubernetes with Istio Service Mesh
In this lab, you'll learn how to enforce Zero Trust networking in Kubernetes using Istio service mesh. You'll deploy the Istio control plane and data plane, configure mutual TLS to encrypt all service-to-service communication, and implement identity-based authorization policies.
Lab Info
Table of Contents
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Challenge
Deploy and integrate the Service Mesh Data Plane
You will deploy Istio service mesh to your Kubernetes cluster and configure automatic sidecar injection. You'll install the Istio control plane, create a namespace with injection enabled, and deploy microservices to verify that Envoy proxies are automatically injected alongside application containers.
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Challenge
Enforce service identity and mutual TLS (mTLS)
Now you'll learn to enforce mutual TLS authentication between all services in the mesh. You'll configure strict mTLS mode using PeerAuthentication policies to ensure all service-to-service communication is encrypted and authenticated, then verify that plaintext connections are blocked.
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Challenge
Implement granular, identity-aware access control
Finally, you will implement identity-based access control using Istio authorization policies. You'll create a default-deny policy that blocks all access to the backend service, then selectively allow only the frontend service account to communicate with the backend based on workload identity.
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