Add logging for InferLocalAddr

Signed-off-by: Edwin Xie <edwin.xie@broadcom.com>

server/embed/config.go

@@ -1154,14 +1154,28 @@ func (cfg *Config) InferLocalAddr() string {
 	if !cfg.SetMemberLocalAddr {
 		return ""
 	}
+
+	lg := cfg.GetLogger()
+	lg.Info(
+		"searching for a suitable member local address in AdvertisePeerURLs",
+		zap.Strings("advertise-peer-urls", cfg.getAdvertisePeerUrls()),
+	)
 	for _, peerURL := range cfg.AdvertisePeerUrls {
 		if addr, err := netip.ParseAddr(peerURL.Hostname()); err == nil {
 			if addr.IsLoopback() || addr.IsUnspecified() {
 				continue
 			}
+			lg.Info(
+				"setting member local address",
+				zap.String("LocalAddr", addr.String()),
+			)
 			return addr.String()
 		}
 	}
+	lg.Warn(
+		"unable to set a member local address due to lack of suitable local addresses",
+		zap.Strings("advertise-peer-urls", cfg.getAdvertisePeerUrls()),
+	)
 	return ""
 }