update(metrics): always refresh ifinfo

Because libs constantly refreshes them, it's fine to re-create the JSON
each time

Signed-off-by: Melissa Kilby <[email protected]>

Author: incertum

userspace/falco/stats_writer.cpp

@@ -358,40 +358,37 @@ void stats_writer::collector::get_metrics_output_fields_wrapper(
 		output_fields[metric_name_file_sha256] = item.second;
 	}
 
-	if (stats_snapshot_time_delta_sec == 0)
+	auto ipv4list = inspector->get_ifaddr_list().get_ipv4_list();
+	auto ipv6list = inspector->get_ifaddr_list().get_ipv6_list();
+	nlohmann::json ipv4_json;
+	nlohmann::json ipv6_json;
+	if(ipv4list)
 	{
-		auto ipv4list = inspector->get_ifaddr_list().get_ipv4_list();
-		auto ipv6list = inspector->get_ifaddr_list().get_ipv6_list();
-		nlohmann::json ipv4_json;
-		nlohmann::json ipv6_json;
-		if(ipv4list)
+		for (const auto& item : *ipv4list)
 		{
-			for (const auto& item : *ipv4list)
+			if(item.m_name == "lo")
 			{
-				if(item.m_name == "lo")
-				{
-					continue;
-				}
-				ipv4_json[item.m_name] = item.addr_to_string();
+				continue;
 			}
+			ipv4_json[item.m_name] = item.addr_to_string();
 		}
+	}
 
-		if(ipv6list)
+	if(ipv6list)
+	{
+		for (const auto& item : *ipv6list)
 		{
-			for (const auto& item : *ipv6list)
+			if(item.m_name == "lo")
 			{
-				if(item.m_name == "lo")
-				{
-					continue;
-				}
-				ipv6_json[item.m_name] = item.addr_to_string();
+				continue;
 			}
+			ipv6_json[item.m_name] = item.addr_to_string();
 		}
-		nlohmann::json ifinfo_json;
-		ifinfo_json["ipv4"] = ipv4_json;
-		ifinfo_json["ipv6"] = ipv6_json;
-		m_ifinfo_json_escaped = ifinfo_json.dump();
 	}
+	nlohmann::json ifinfo_json;
+	ifinfo_json["ipv4"] = ipv4_json;
+	ifinfo_json["ipv6"] = ipv6_json;
+	m_ifinfo_json_escaped = ifinfo_json.dump();
 	output_fields["falco.host_ifinfo_json"] = m_ifinfo_json_escaped;
 
 #endif