feat: add host IP to deployment metadata dashboard

Author: moabdelazem

internal/handler/handler.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"html/template"
 	"log"
+	"net"
 	"net/http"
 	"runtime"
 	"time"
@@ -63,11 +64,25 @@ func (h *Handler) buildInfo() model.AppInfo {
 		Environment: h.cfg.Environment,
 		PodName:     h.cfg.PodName,
 		NodeName:    h.cfg.NodeName,
+		HostIP:      getHostIP(),
 		GoVersion:   runtime.Version(),
 		Uptime:      formatUptime(time.Since(h.startTime)),
 	}
 }
 
+func getHostIP() string {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return "unknown"
+	}
+	for _, addr := range addrs {
+		if ipnet, ok := addr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() && ipnet.IP.To4() != nil {
+			return ipnet.IP.String()
+		}
+	}
+	return "unknown"
+}
+
 func formatUptime(d time.Duration) string {
 	days := int(d.Hours()) / 24
 	hours := int(d.Hours()) % 24

internal/model/appinfo.go

@@ -7,6 +7,7 @@ type AppInfo struct {
 	Environment string `json:"environment"`
 	PodName     string `json:"pod_name"`
 	NodeName    string `json:"node_name"`
+	HostIP      string `json:"host_ip"`
 	GoVersion   string `json:"go_version"`
 	Uptime      string `json:"uptime"`
 }

web/templates/index.html

@@ -146,6 +146,10 @@ <h1>GitOps Sample App</h1>
                 <td>Node</td>
                 <td>{{.NodeName}}</td>
             </tr>
+            <tr>
+                <td>Host IP</td>
+                <td>{{.HostIP}}</td>
+            </tr>
         </table>
 
         <div class="footer">