v0.35.2

src/balance/model.rs

@@ -99,6 +99,8 @@ pub struct HealthCheck {
     pub mode: HealthMode,
     pub path: String,
     pub host: Option<String>,
+    pub port: Option<u16>,
+    pub expect_body: Option<String>,
     pub interval_ms: u64,
     pub timeout_ms: u64,
     pub slow_response_ms: u64,
@@ -113,6 +115,8 @@ impl Default for HealthCheck {
             mode: HealthMode::Tcp,
             path: "/".into(),
             host: None,
+            port: None,
+            expect_body: None,
             interval_ms: 5000,
             timeout_ms: 2000,
             slow_response_ms: 1500,
@@ -261,6 +265,13 @@ impl Settings {
                 && !h.path.bytes().any(|b| b <= 32 || b == 127),
             "invalid health HTTP path"
         );
+        ensure!(h.port != Some(0), "health check port must be 1..65535");
+        if let Some(expected) = &h.expect_body {
+            ensure!(
+                !expected.is_empty() && expected.len() <= 256 && !expected.chars().any(char::is_control),
+                "health check expected body text must be 1..256 printable characters"
+            );
+        }
         if let Some(host) = &h.host {
             crate::config::request_host(host)?;
             let _: HeaderValue = host.parse()?;