feat: add created at field for config

src/config/load.rs

@@ -209,6 +209,7 @@ pub struct PingapConf {
     pub group: Option<String>,
     pub threads: Option<usize>,
     pub work_stealing: Option<bool>,
+    pub created_at: Option<String>,
 }
 
 impl PingapConf {
@@ -243,6 +244,7 @@ struct TomlConfig {
     group: Option<String>,
     threads: Option<usize>,
     work_stealing: Option<bool>,
+    created_at: Option<String>,
 }
 
 fn format_toml(value: &Value) -> String {
@@ -256,10 +258,12 @@ fn format_toml(value: &Value) -> String {
 /// Save the confog to path.
 ///
 /// Validate the config before save.
-pub fn save_config(path: &str, conf: &PingapConf) -> Result<()> {
+pub fn save_config(path: &str, conf: &mut PingapConf) -> Result<()> {
     conf.validate()?;
+    conf.created_at = Some(chrono::Local::now().to_rfc3339());
+
     let filepath = utils::resolve_path(path);
-    let buf = toml::to_string_pretty(conf).context(SerSnafu)?;
+    let buf = toml::to_string_pretty(&conf).context(SerSnafu)?;
     std::fs::write(&filepath, buf).context(IoSnafu { file: filepath })?;
 
     Ok(())
@@ -318,6 +322,7 @@ pub fn load_config(path: &str, admin: bool) -> Result<PingapConf> {
         group: data.group,
         threads,
         work_stealing: data.work_stealing,
+        created_at: data.created_at,
         ..Default::default()
     };
     for (name, value) in data.upstreams {

src/proxy/logger.rs

@@ -248,6 +248,8 @@ impl Parser {
                 TagCategory::Host => {
                     if let Some(host) = get_req_header_value(req_header, "Host") {
                         buf.push_str(host);
+                    } else if let Some(host) = req_header.uri.host() {
+                        buf.push_str(host);
                     }
                 }
                 TagCategory::Method => {

src/serve/admin.rs

@@ -85,7 +85,7 @@ impl AdminServe {
             }
             _ => {}
         };
-        save_config(&config::get_config_path(), &conf).map_err(|e| {
+        save_config(&config::get_config_path(), &mut conf).map_err(|e| {
             error!("failed to save config: {e}");
             pingora::Error::new_str("Save config fail")
         })?;
@@ -136,7 +136,7 @@ impl AdminServe {
                 conf.work_stealing = basic_conf.work_stealing;
             }
         };
-        save_config(&config::get_config_path(), &conf).map_err(|e| {
+        save_config(&config::get_config_path(), &mut conf).map_err(|e| {
             error!("failed to save config: {e}");
             pingora::Error::new_str("Save config fail")
         })?;