Add generate-keys.sh script for SSL and JWT key generation and update examples

- Added `generate-keys.sh` script to automate the generation of SSL certificates and JWT keys for testing.
- Updated examples and documentation across Docker, Kubernetes, Swarm, and static directories to include instructions for running the script.
- Removed hardcoded .pem files and replaced with dynamically generated keys and certificates.
- Emphasized testing-only usage of self-signed certificates.

examples/generate-keys.sh

@@ -0,0 +1,97 @@
+#!/bin/bash
+set -e
+
+# Generate SSL Certificates and JWT Keys for EasyHAProxy Examples
+# This script creates all .pem files needed for the examples directory
+
+echo "Generating SSL certificates and JWT keys for EasyHAProxy examples..."
+echo ""
+
+# Create necessary directories
+mkdir -p examples/static
+mkdir -p examples/docker
+mkdir -p examples/docker/certs/haproxy
+mkdir -p examples/swarm/certs
+
+# ============================================================================
+# Generate SSL Certificate for host1.local (4096-bit RSA, 10-year validity)
+# ============================================================================
+echo "Generating host1.local certificate (4096-bit RSA, 10-year validity)..."
+openssl req -x509 -nodes -days 3650 -newkey rsa:4096 \
+    -keyout examples/static/host1.local.pem \
+    -out examples/static/host1.local.pem \
+    -subj "/C=US/ST=State/L=City/O=Organization/CN=host1.local"
+
+# Copy to swarm directory
+cp examples/static/host1.local.pem examples/swarm/certs/host1.local.pem
+echo " Created host1.local.pem (4096-bit, 10 years)"
+echo "  - examples/static/host1.local.pem"
+echo "  - examples/swarm/certs/host1.local.pem"
+echo ""
+
+# ============================================================================
+# Generate SSL Certificate for host2.local (2048-bit RSA, 1-year validity)
+# ============================================================================
+echo "Generating host2.local certificate (2048-bit RSA, 1-year validity)..."
+openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
+    -keyout examples/docker/host2.local.pem \
+    -out examples/docker/host2.local.pem \
+    -subj "/C=US/ST=State/L=City/O=Organization/CN=host2.local"
+
+# Copy to swarm directory
+cp examples/docker/host2.local.pem examples/swarm/certs/host2.local.pem
+echo " Created host2.local.pem (2048-bit, 1 year)"
+echo "  - examples/docker/host2.local.pem"
+echo "  - examples/swarm/certs/host2.local.pem"
+echo ""
+
+# ============================================================================
+# Generate JWT RSA Key Pair (2048-bit)
+# ============================================================================
+echo "Generating JWT RSA key pair (2048-bit)..."
+
+# Generate private key
+openssl genrsa -out examples/docker/jwt_private.pem 2048
+
+# Extract public key
+openssl rsa -in examples/docker/jwt_private.pem -pubout -out examples/docker/jwt_pubkey.pem
+
+echo " Created JWT key pair (2048-bit)"
+echo "  - examples/docker/jwt_private.pem (private key)"
+echo "  - examples/docker/jwt_pubkey.pem (public key)"
+echo ""
+
+# ============================================================================
+# Generate Placeholder Certificate
+# ============================================================================
+echo "Generating placeholder certificate..."
+openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
+    -keyout examples/docker/certs/haproxy/.place_holder_cert.pem \
+    -out examples/docker/certs/haproxy/.place_holder_cert.pem \
+    -subj "/C=US/ST=State/L=City/O=Organization/CN=placeholder"
+
+echo " Created placeholder certificate"
+echo "  - examples/docker/certs/haproxy/.place_holder_cert.pem"
+echo ""
+
+# ============================================================================
+# Summary
+# ============================================================================
+echo "============================================"
+echo "All certificates and keys generated successfully!"
+echo "============================================"
+echo ""
+echo "SSL Certificates:"
+echo "  - host1.local (4096-bit, 10 years)"
+echo "  - host2.local (2048-bit, 1 year)"
+echo ""
+echo "JWT Keys:"
+echo "  - jwt_private.pem (private key for signing)"
+echo "  - jwt_pubkey.pem (public key for validation)"
+echo ""
+echo "IMPORTANT NOTES:"
+echo "  - These are self-signed certificates for TESTING ONLY"
+echo "  - DO NOT use these certificates in production"
+echo "  - Browsers will show security warnings for self-signed certificates"
+echo "  - JWT keys should be kept secure and rotated regularly"
+echo ""