docs: Update roadmap and implementation plan to mark nginx-nodeport as completed

examples/nginx-nodeport/debug-networking.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+
+# Diagnostic script to debug NodePort networking issues
+# This helps identify why some URLs work and others don't
+
+echo "🔍 NodePort Networking Diagnostics"
+echo "=================================="
+echo ""
+
+# Check pod locations
+echo "📍 Current Pod Locations:"
+kubectl get pods -l app=nginx-nodeport -o wide
+echo ""
+
+# Check node information
+echo "🌐 Node Information:"
+kubectl get nodes -o wide
+echo ""
+
+# Check service status
+echo "🔧 Service Status:"
+kubectl get svc nginx-nodeport-service
+echo ""
+
+# Test connectivity to each node
+echo "🧪 Connectivity Tests:"
+echo ""
+
+PODS=$(kubectl get pods -l app=nginx-nodeport -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.nodeName}{"\n"}{end}')
+
+while IFS=$'\t' read -r pod_name node_name; do
+    echo "Testing pod: $pod_name on node: $node_name"
+    
+    # Get IPv6 for this specific node
+    IPV6=$(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)
+    
+    if [ ! -z "$IPV6" ]; then
+        echo "  Node IPv6: $IPV6"
+        echo "  Testing connectivity: curl -6 --connect-timeout 5 http://[$IPV6]:30091/health"
+        
+        # Test HTTP connectivity
+        if curl -6 --connect-timeout 5 -s "http://[$IPV6]:30091/health" >/dev/null 2>&1; then
+            echo "  ✅ HTTP connectivity: WORKING"
+        else
+            echo "  ❌ HTTP connectivity: FAILED"
+        fi
+        
+        # Test ICMP connectivity
+        echo "  Testing ping: ping -6 -c 2 -W 3 $IPV6"
+        if ping -6 -c 2 -W 3 "$IPV6" >/dev/null 2>&1; then
+            echo "  ✅ ICMP connectivity: WORKING"
+        else
+            echo "  ❌ ICMP connectivity: FAILED"
+        fi
+    else
+        echo "  ❌ No IPv6 found for node: $node_name"
+    fi
+    echo ""
+done <<< "$PODS"
+
+echo "📊 Summary:"
+echo "This shows which nodes actually have pods and whether they're accessible"
+echo ""
+echo "If some URLs work and others don't, it means:"
+echo "  ✅ Working URLs: Nodes with good Mycelium connectivity"
+echo "  ❌ Failed URLs: Nodes with poor Mycelium connectivity or network issues"
+echo ""
+echo "To fix connectivity issues:"
+echo "  1. Check Mycelium status on affected nodes"
+echo "  2. Restart Mycelium on nodes with failed connectivity"
+echo "  3. Scale to replicas only on nodes with good connectivity"