Joao Gilberto Magalhaes d66c4f8595 Migrate examples to tests_e2e directory structure

- Relocated all files and scripts from `examples` to `tests_e2e` for better organization.
- Updated references and paths in configurations, scripts, and test files.
- Adjusted `bump-version.sh` to handle the new `tests_e2e` structure.
- Updated `.gitignore` to reflect path changes.

2026-02-12 17:05:04 -05:00

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Header Echo Server - Test Fixture

A lightweight Python HTTP server that echoes all request headers as JSON. Used for testing HAProxy plugins that manipulate headers and client IPs.

Purpose

This test fixture is used by both Docker Compose and Kubernetes test suites to verify:

Header manipulation (e.g., X-Forwarded-For, CF-Connecting-IP)
IP restoration plugins (Cloudflare, custom CDN integrations)
Request routing and backend visibility

Usage

Docker Compose

services:
  webapp:
    build: ../fixtures/header-echo
    ports:
      - "8080:8080"

Kubernetes

# Build and load into kind cluster
docker build -t header-echo-server:test .
kind load docker-image header-echo-server:test --name your-cluster

# Use in deployment
spec:
  containers:
  - name: webapp
    image: header-echo-server:test
    imagePullPolicy: Never

Manual Testing

# Start the server
python3 server.py

# Test it
curl http://localhost:8080
# Returns JSON with all headers, client IP, and X-Forwarded-For value

Response Format

{
  "headers": {
    "Host": "localhost:8080",
    "User-Agent": "curl/7.81.0",
    "Accept": "*/*"
  },
  "client_ip": "127.0.0.1",
  "x_forwarded_for": "NOT SET"
}

Used By

tests_e2e/docker/docker-compose-cloudflare.yml
tests_e2e/test_docker_compose.py::TestCloudflare
tests_e2e/kubernetes/cloudflare.yml
tests_e2e/test_kubernetes.py::TestCloudflare

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