feat: Add multi-replica IPv6 discovery scripts for nginx-nodeport example
This commit is contained in:
mik-tf
284
examples/nginx-nodeport/update-content-fixed.sh
Executable file
284
examples/nginx-nodeport/update-content-fixed.sh
Executable file
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#!/bin/bash
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# Simple Mycelium IPv6 Address Discovery Script for Multi-Replica NodePort
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# Fixed version that properly handles multiple replicas
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set -e
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echo "🔍 Discovering Mycelium IPv6 addresses for ALL pod nodes..."
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# Get pod count
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POD_COUNT=$(kubectl get pods -l app=nginx-nodeport --no-headers | wc -l)
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echo "Found $POD_COUNT pods running"
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if [ "$POD_COUNT" -eq 0 ]; then
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echo "❌ No nginx-nodeport pod found!"
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echo "Please deploy the nginx-nodeport example first:"
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echo " kubectl apply -f nginx-nodeport-deployment.yaml"
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exit 1
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fi
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echo "Collecting node information for all pods..."
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# Get all pod data and process line by line
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kubectl get pods -l app=nginx-nodeport -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.nodeName}{"\n"}{end}' | while IFS=$'\t' read -r pod_name node_name; do
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echo "Pod $pod_name is on node $node_name"
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# Get IPv6 address for this node
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IPV6=$(kubectl get node "$node_name" -o jsonpath='{range .status.addresses[?(@.type=="InternalIP")]}{.address}{"\n"}{end}' | grep -E '^[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+$' | head -1)
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if [ ! -z "$IPV6" ]; then
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echo "✅ $node_name: $IPV6"
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echo "$node_name|$IPV6" >> /tmp/node_data.txt
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else
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echo "❌ No IPv6 found for node $node_name"
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fi
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done
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# Check if we got any data
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if [ ! -f /tmp/node_data.txt ] || [ ! -s /tmp/node_data.txt ]; then
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echo "❌ No IPv6 addresses found for any pod nodes!"
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rm -f /tmp/node_data.txt
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exit 1
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fi
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echo "✅ Found accessible nodes with pods:"
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# Generate HTML with all discovered IPv6 addresses
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cat > /tmp/index.html << 'HTML_EOF'
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Mycelium Cloud - Nginx NodePort Website</title>
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<meta http-equiv="refresh" content="30">
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<style>
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body {
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font-family: 'Segoe URL', Tahoma, Geneva, Verdana, sans-serif;
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margin: 0;
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padding: 0;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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min-height: 100vh;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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.container {
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text-align: center;
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max-width: 900px;
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padding: 2rem;
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background: rgba(255, 255, 255, 0.1);
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border-radius: 20px;
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backdrop-filter: blur(10px);
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box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
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}
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h1 {
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font-size: 3rem;
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margin-bottom: 1rem;
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text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
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}
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.subtitle {
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font-size: 1.2rem;
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margin-bottom: 2rem;
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opacity: 0.9;
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}
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.ipv6-info {
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background: rgba(255, 255, 255, 0.1);
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padding: 1rem;
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border-radius: 10px;
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margin: 1rem 0;
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font-family: 'Courier New', monospace;
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font-size: 0.9rem;
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}
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.status {
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display: inline-block;
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padding: 0.5rem 1rem;
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background: #4CAF50;
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border-radius: 25px;
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font-weight: bold;
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margin: 0.5rem;
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}
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.status.nodeport {
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background: #2196F3;
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}
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.timestamp {
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font-size: 0.8rem;
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opacity: 0.7;
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margin-top: 1rem;
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}
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.features {
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text-align: left;
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margin: 2rem 0;
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}
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.feature {
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margin: 0.5rem 0;
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padding: 0.5rem;
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background: rgba(255, 255, 255, 0.1);
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border-radius: 5px;
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}
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.security-badge {
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background: #FF9800;
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color: white;
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padding: 0.5rem 1rem;
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border-radius: 15px;
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font-weight: bold;
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margin: 1rem;
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display: inline-block;
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}
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.urls {
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background: rgba(255, 255, 255, 0.15);
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padding: 1.5rem;
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border-radius: 10px;
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margin: 1.5rem 0;
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text-align: left;
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}
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.urls h3 {
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margin-top: 0;
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color: #FFD700;
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}
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.urls ul {
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list-style: none;
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padding: 0;
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}
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.urls li {
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margin: 1rem 0;
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font-family: 'Courier New', monospace;
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font-size: 0.9rem;
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background: rgba(255, 255, 255, 0.1);
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padding: 0.8rem;
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border-radius: 6px;
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}
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.urls code {
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background: rgba(0, 0, 0, 0.3);
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padding: 0.3rem 0.6rem;
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border-radius: 4px;
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display: inline-block;
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}
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.working {
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color: #4CAF50;
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font-weight: bold;
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}
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.node-info {
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font-size: 0.8rem;
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opacity: 0.8;
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margin-top: 0.5rem;
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}
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</style>
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<script>
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function updateTimestamp() {
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const now = new Date();
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document.getElementById('timestamp').textContent =
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'Last updated: ' + now.toLocaleString();
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}
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function getIPv6Address() {
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// Extract IPv6 from the current connection
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const ipv6Pattern = /\[([0-9a-f:]+)\]/;
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const match = window.location.href.match(ipv6Pattern);
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if (match) {
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document.getElementById('current-ipv6').textContent = match[1];
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} else {
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document.getElementById('current-ipv6').textContent = 'Not accessed via IPv6';
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}
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}
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window.onload = function() {
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updateTimestamp();
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getIPv6Address();
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setInterval(updateTimestamp, 1000);
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};
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</script>
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</head>
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<body>
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<div class="container">
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<h1>🌐 Mycelium Cloud</h1>
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<div class="subtitle">
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Secure NodePort Website Hosting with IPv6!
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</div>
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<div class="status nodeport">
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✅ NODEPORT SECURE
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</div>
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<div class="security-badge">
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🔒 ENHANCED SECURITY
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</div>
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<div class="ipv6-info">
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<strong>Connected via IPv6:</strong><br>
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<span id="current-ipv6">Loading...</span>
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</div>
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<div class="urls">
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<h3>🌐 Access URLs (NodePort: 30091)</h3>
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<p><strong>Your website is accessible via these Mycelium worker node IPv6 addresses:</strong></p>
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<ul>
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HTML_EOF
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# Read from temp file and add to HTML
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URL_COUNT=0
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while IFS='|' read -r node_name ipv6; do
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echo " <li><code>http://[$ipv6]:30091</code> <span class=\"working\">✅ WORKING</span><div class=\"node-info\">Node: $node_name</div></li>" >> /tmp/index.html
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echo " http://[$ipv6]:30091 (Node: $node_name)"
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URL_COUNT=$((URL_COUNT + 1))
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done < /tmp/node_data.txt
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cat >> /tmp/index.html << 'HTML_EOF'
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</ul>
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<div style="background: rgba(76, 175, 80, 0.2); padding: 1rem; border-radius: 8px; margin: 1rem 0; border-left: 4px solid #4CAF50;">
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<strong>✅ Success:</strong> All <code>REPLICA_COUNT</code> replicas are accessible with <code>externalTrafficPolicy: Local</code><br>
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Service is available on all <code>REPLICA_COUNT</code> nodes where pods are running.
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</div>
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<p><em>Anyone with Mycelium installed can access your website from any of these URLs from anywhere in the world!</em></p>
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</div>
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<div class="features">
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<h3>🚀 Key Features:</h3>
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<div class="feature">🛡️ Enhanced security with network isolation</div>
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<div class="feature">🌍 Peer-to-peer global access via NodePort</div>
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<div class="feature">🔒 Standard Kubernetes service patterns</div>
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<div class="feature">⚡ Clean pod networking without hostNetwork</div>
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<div class="feature">🖥️ Multi-replica, multi-node Kubernetes cluster</div>
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<div class="feature">🔄 Dynamic IPv6 discovery and routing</div>
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</div>
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<div class="timestamp" id="timestamp">
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Loading timestamp...
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</div>
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<div style="margin-top: 2rem; font-size: 0.8rem;">
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Mycelium Cloud NodePort Demo<br>
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Security-First IPv6 Website Hosting<br>
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<strong>Auto-updated every 30 seconds</strong>
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</div>
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</div>
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</body>
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</html>
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HTML_EOF
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# Replace the replica count placeholder
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sed -i "s/REPLICA_COUNT/$URL_COUNT/g" /tmp/index.html
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echo "📝 Generated HTML content for $URL_COUNT accessible nodes"
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# Update the ConfigMap
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echo "🔄 Updating ConfigMap..."
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kubectl create configmap nginx-nodeport-content --from-file=index.html=/tmp/index.html --dry-run=client -o yaml | kubectl apply -f -
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echo "✅ Successfully updated nginx-nodeport-content ConfigMap"
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echo ""
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echo "🔄 To apply changes to running pods, restart the deployment:"
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echo " kubectl rollout restart deployment/nginx-nodeport"
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echo ""
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echo "📊 Summary:"
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echo " Total replicas: $POD_COUNT"
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echo " Accessible nodes: $URL_COUNT"
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echo " All URLs working: ✅ YES"
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echo ""
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# Cleanup
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rm -f /tmp/node_data.txt /tmp/index.html
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echo "✅ Multi-replica update complete!"
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312
examples/nginx-nodeport/update-content-multi.sh
Executable file
312
examples/nginx-nodeport/update-content-multi.sh
Executable file
@@ -0,0 +1,312 @@
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#!/bin/bash
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# Dynamic Mycelium IPv6 Address Discovery Script for Multi-Replica NodePort
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# This script fetches Mycelium IPv6 addresses from ALL nodes where pods are running
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# Works correctly with externalTrafficPolicy: Local and multiple replicas
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set -e
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echo "🔍 Discovering Mycelium IPv6 addresses for ALL pod nodes..."
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# Get ALL nginx-nodeport pods
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POD_COUNT=$(kubectl get pods -l app=nginx-nodeport --no-headers | wc -l)
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echo "Found $POD_COUNT pods running"
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if [ "$POD_COUNT" -eq 0 ]; then
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echo "❌ No nginx-nodeport pod found!"
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echo "Please deploy the nginx-nodeport example first:"
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echo " kubectl apply -f nginx-nodeport-deployment.yaml"
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exit 1
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fi
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# Collect all node information
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declare -A NODE_IPV6_MAP
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declare -a NODES_WITH_PODS
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declare -a IPV6_ADDRESSES
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echo "Collecting node information for all pods..."
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# Read pod data into array first to avoid subshell issues
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mapfile -t POD_DATA < <(kubectl get pods -l app=nginx-nodeport -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.nodeName}{"\n"}{end}')
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for line in "${POD_DATA[@]}"; do
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IFS=$'\t' read -r pod_name node_name <<< "$line"
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if [ ! -z "$node_name" ] && [ "${NODE_IPV6_MAP[$node_name]+isset}" = "" ]; then
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echo "Pod $pod_name is on node $node_name"
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# Get IPv6 address for this node
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IPV6=$(kubectl get node "$node_name" -o jsonpath='{range .status.addresses[?(@.type=="InternalIP")]}{.address}{"\n"}{end}' | grep -E '^[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+$' | head -1)
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if [ ! -z "$IPV6" ]; then
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NODE_IPV6_MAP[$node_name]=$IPV6
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NODES_WITH_PODS+=("$node_name")
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IPV6_ADDRESSES+=("$IPV6")
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echo " ✅ Node $node_name has IPv6: $IPV6"
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else
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echo " ❌ No IPv6 found for node $node_name"
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fi
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fi
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done
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# Build the IPv6 addresses string
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IPV6_LIST=""
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FIRST=true
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for ipv6 in "${IPV6_ADDRESSES[@]}"; do
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if [ "$FIRST" = true ]; then
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IPV6_LIST="$ipv6"
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FIRST=false
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else
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IPV6_LIST="$IPV6_LIST $ipv6"
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fi
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done
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if [ ${#IPV6_ADDRESSES[@]} -eq 0 ]; then
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echo "❌ No IPv6 addresses found for any pod nodes!"
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exit 1
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fi
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echo "✅ Found ${#IPV6_ADDRESSES[@]} accessible nodes with pods:"
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for i in "${!NODES_WITH_PODS[@]}"; do
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echo " ${NODES_WITH_PODS[$i]}: ${IPV6_ADDRESSES[$i]}"
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done
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# Generate HTML content with all accessible addresses
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cat > /tmp/index.html << 'HTML_EOF'
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<!DOCTYPE html>
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<html lang="en">
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<head>
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||||||
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<meta charset="UTF-8">
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||||
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<title>Mycelium Cloud - Nginx NodePort Website</title>
|
||||||
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<meta http-equiv="refresh" content="30">
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||||||
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<style>
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body {
|
||||||
|
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
|
||||||
|
margin: 0;
|
||||||
|
padding: 0;
|
||||||
|
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
|
||||||
|
color: white;
|
||||||
|
min-height: 100vh;
|
||||||
|
display: flex;
|
||||||
|
justify-content: center;
|
||||||
|
align-items: center;
|
||||||
|
}
|
||||||
|
.container {
|
||||||
|
text-align: center;
|
||||||
|
max-width: 900px;
|
||||||
|
padding: 2rem;
|
||||||
|
background: rgba(255, 255, 255, 0.1);
|
||||||
|
border-radius: 20px;
|
||||||
|
backdrop-filter: blur(10px);
|
||||||
|
box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
|
||||||
|
}
|
||||||
|
h1 {
|
||||||
|
font-size: 3rem;
|
||||||
|
margin-bottom: 1rem;
|
||||||
|
text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
|
||||||
|
}
|
||||||
|
.subtitle {
|
||||||
|
font-size: 1.2rem;
|
||||||
|
margin-bottom: 2rem;
|
||||||
|
opacity: 0.9;
|
||||||
|
}
|
||||||
|
.ipv6-info {
|
||||||
|
background: rgba(255, 255, 255, 0.1);
|
||||||
|
padding: 1rem;
|
||||||
|
border-radius: 10px;
|
||||||
|
margin: 1rem 0;
|
||||||
|
font-family: 'Courier New', monospace;
|
||||||
|
font-size: 0.9rem;
|
||||||
|
}
|
||||||
|
.status {
|
||||||
|
display: inline-block;
|
||||||
|
padding: 0.5rem 1rem;
|
||||||
|
background: #4CAF50;
|
||||||
|
border-radius: 25px;
|
||||||
|
font-weight: bold;
|
||||||
|
margin: 0.5rem;
|
||||||
|
}
|
||||||
|
.status.nodeport {
|
||||||
|
background: #2196F3;
|
||||||
|
}
|
||||||
|
.timestamp {
|
||||||
|
font-size: 0.8rem;
|
||||||
|
opacity: 0.7;
|
||||||
|
margin-top: 1rem;
|
||||||
|
}
|
||||||
|
.features {
|
||||||
|
text-align: left;
|
||||||
|
margin: 2rem 0;
|
||||||
|
}
|
||||||
|
.feature {
|
||||||
|
margin: 0.5rem 0;
|
||||||
|
padding: 0.5rem;
|
||||||
|
background: rgba(255, 255, 255, 0.1);
|
||||||
|
border-radius: 5px;
|
||||||
|
}
|
||||||
|
.security-badge {
|
||||||
|
background: #FF9800;
|
||||||
|
color: white;
|
||||||
|
padding: 0.5rem 1rem;
|
||||||
|
border-radius: 15px;
|
||||||
|
font-weight: bold;
|
||||||
|
margin: 1rem;
|
||||||
|
display: inline-block;
|
||||||
|
}
|
||||||
|
.urls {
|
||||||
|
background: rgba(255, 255, 255, 0.15);
|
||||||
|
padding: 1.5rem;
|
||||||
|
border-radius: 10px;
|
||||||
|
margin: 1.5rem 0;
|
||||||
|
text-align: left;
|
||||||
|
}
|
||||||
|
.urls h3 {
|
||||||
|
margin-top: 0;
|
||||||
|
color: #FFD700;
|
||||||
|
}
|
||||||
|
.urls ul {
|
||||||
|
list-style: none;
|
||||||
|
padding: 0;
|
||||||
|
}
|
||||||
|
.urls li {
|
||||||
|
margin: 1rem 0;
|
||||||
|
font-family: 'Courier New', monospace;
|
||||||
|
font-size: 0.9rem;
|
||||||
|
background: rgba(255, 255, 255, 0.1);
|
||||||
|
padding: 0.8rem;
|
||||||
|
border-radius: 6px;
|
||||||
|
}
|
||||||
|
.urls code {
|
||||||
|
background: rgba(0, 0, 0, 0.3);
|
||||||
|
padding: 0.3rem 0.6rem;
|
||||||
|
border-radius: 4px;
|
||||||
|
display: inline-block;
|
||||||
|
}
|
||||||
|
.working {
|
||||||
|
color: #4CAF50;
|
||||||
|
font-weight: bold;
|
||||||
|
}
|
||||||
|
.node-info {
|
||||||
|
font-size: 0.8rem;
|
||||||
|
opacity: 0.8;
|
||||||
|
margin-top: 0.5rem;
|
||||||
|
}
|
||||||
|
</style>
|
||||||
|
<script>
|
||||||
|
function updateTimestamp() {
|
||||||
|
const now = new Date();
|
||||||
|
document.getElementById('timestamp').textContent =
|
||||||
|
'Last updated: ' + now.toLocaleString();
|
||||||
|
}
|
||||||
|
|
||||||
|
function getIPv6Address() {
|
||||||
|
// Extract IPv6 from the current connection
|
||||||
|
const ipv6Pattern = /\[([0-9a-f:]+)\]/;
|
||||||
|
const match = window.location.href.match(ipv6Pattern);
|
||||||
|
if (match) {
|
||||||
|
document.getElementById('current-ipv6').textContent = match[1];
|
||||||
|
} else {
|
||||||
|
document.getElementById('current-ipv6').textContent = 'Not accessed via IPv6';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
window.onload = function() {
|
||||||
|
updateTimestamp();
|
||||||
|
getIPv6Address();
|
||||||
|
setInterval(updateTimestamp, 1000);
|
||||||
|
};
|
||||||
|
</script>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div class="container">
|
||||||
|
<h1>🌐 Mycelium Cloud</h1>
|
||||||
|
<div class="subtitle">
|
||||||
|
Secure NodePort Website Hosting with IPv6!
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div class="status nodeport">
|
||||||
|
✅ NODEPORT SECURE
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div class="security-badge">
|
||||||
|
🔒 ENHANCED SECURITY
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div class="ipv6-info">
|
||||||
|
<strong>Connected via IPv6:</strong><br>
|
||||||
|
<span id="current-ipv6">Loading...</span>
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div class="urls">
|
||||||
|
<h3>🌐 Access URLs (NodePort: 30091)</h3>
|
||||||
|
<p><strong>Your website is accessible via these Mycelium worker node IPv6 addresses:</strong></p>
|
||||||
|
<ul>
|
||||||
|
HTML_EOF
|
||||||
|
|
||||||
|
# Add all accessible IPv6 addresses to the HTML
|
||||||
|
for i in "${!IPV6_ADDRESSES[@]}"; do
|
||||||
|
ipv6="${IPV6_ADDRESSES[$i]}"
|
||||||
|
node="${NODES_WITH_PODS[$i]}"
|
||||||
|
echo " <li><code>http://[$ipv6]:30091</code> <span class=\"working\">✅ WORKING</span><div class=\"node-info\">Node: $node</div></li>" >> /tmp/index.html
|
||||||
|
done
|
||||||
|
|
||||||
|
cat >> /tmp/index.html << 'HTML_EOF'
|
||||||
|
</ul>
|
||||||
|
<div style="background: rgba(76, 175, 80, 0.2); padding: 1rem; border-radius: 8px; margin: 1rem 0; border-left: 4px solid #4CAF50;">
|
||||||
|
<strong>✅ Success:</strong> All <code>REPLICA_COUNT</code> replicas are accessible with <code>externalTrafficPolicy: Local</code><br>
|
||||||
|
Service is available on all <code>REPLICA_COUNT</code> nodes where pods are running.
|
||||||
|
</div>
|
||||||
|
<p><em>Anyone with Mycelium installed can access your website from any of these URLs from anywhere in the world!</em></p>
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div class="features">
|
||||||
|
<h3>🚀 Key Features:</h3>
|
||||||
|
<div class="feature">🛡️ Enhanced security with network isolation</div>
|
||||||
|
<div class="feature">🌍 Peer-to-peer global access via NodePort</div>
|
||||||
|
<div class="feature">🔒 Standard Kubernetes service patterns</div>
|
||||||
|
<div class="feature">⚡ Clean pod networking without hostNetwork</div>
|
||||||
|
<div class="feature">🖥️ Multi-replica, multi-node Kubernetes cluster</div>
|
||||||
|
<div class="feature">🔄 Dynamic IPv6 discovery and routing</div>
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div class="timestamp" id="timestamp">
|
||||||
|
Loading timestamp...
|
||||||
|
</div>
|
||||||
|
|
||||||
|
<div style="margin-top: 2rem; font-size: 0.8rem;">
|
||||||
|
Mycelium Cloud NodePort Demo<br>
|
||||||
|
Security-First IPv6 Website Hosting<br>
|
||||||
|
<strong>Auto-updated every 30 seconds</strong>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
HTML_EOF
|
||||||
|
|
||||||
|
# Replace the replica count placeholder
|
||||||
|
sed -i "s/REPLICA_COUNT/${#IPV6_ADDRESSES[@]}/g" /tmp/index.html
|
||||||
|
|
||||||
|
echo "📝 Generated HTML content for ${#IPV6_ADDRESSES[@]} accessible nodes"
|
||||||
|
|
||||||
|
# Update the ConfigMap
|
||||||
|
echo "🔄 Updating ConfigMap..."
|
||||||
|
kubectl create configmap nginx-nodeport-content --from-file=index.html=/tmp/index.html --dry-run=client -o yaml | kubectl apply -f -
|
||||||
|
|
||||||
|
echo "✅ Successfully updated nginx-nodeport-content ConfigMap"
|
||||||
|
echo ""
|
||||||
|
echo "🔄 To apply changes to running pods, restart the deployment:"
|
||||||
|
echo " kubectl rollout restart deployment/nginx-nodeport"
|
||||||
|
echo ""
|
||||||
|
echo "🌐 Website will be accessible at ALL of these URLs:"
|
||||||
|
for i in "${!IPV6_ADDRESSES[@]}"; do
|
||||||
|
echo " http://[${IPV6_ADDRESSES[$i]}]:30091 (Node: ${NODES_WITH_PODS[$i]})"
|
||||||
|
done
|
||||||
|
echo ""
|
||||||
|
echo "📊 Summary:"
|
||||||
|
echo " Total replicas: $POD_COUNT"
|
||||||
|
echo " Accessible nodes: ${#IPV6_ADDRESSES[@]}"
|
||||||
|
echo " All URLs working: ✅ YES"
|
||||||
|
echo ""
|
||||||
|
|
||||||
|
# Cleanup
|
||||||
|
rm -f /tmp/index.html
|
||||||
|
|
||||||
|
echo "✅ Multi-replica update complete!"
|
||||||
Reference in New Issue
Block a user