cilium-with-auth-and-rl.md

Cilium Installation and Configuration Guide

This guide provides instructions on installing Cilium with authentication and rate-limiting capabilities

Prerequisites

• Kubernetes cluster setup.
• Helm installed.
• Make utility installed.

Installation Steps

1. Clone the repository

2. Install Cilium using Helm with authentication and rate-limiting:

   make install-cilium-with-auth-rl

3. Wait for deployments to be ready before proceeding.

4. If you are using cloud clusters (AKS, EKS, GKE) skip this step.

   • If you are using minikube run this command to expose loadbalancer ips to local network. minikube tunnel
   • Or else run install-metallb

Setup Authentication

1. Apply resources and security policy:

   make setup-with-auth

2. Wait for deployments to be ready.

Test Without Authentication Header

make test-without-auth-header

Gateway will respond with 401 as we have not provided a valid token.

Test With Authentication Header

make test-with-auth-header

You should see a 200 response.

Setup Rate Limiting

1. Apply resources and rate limit policy:

   make setup-with-rate-limit

2. Wait for deployments to be ready.

Test ratelimit

• Test rate limiting with custom headers:

  make test-with-rate-limit-custom-headers

• Test simple rate limiting:

  make test-with-simple-rate-limit