From c070bef0c1005366104176c1fc5af8b8f63cf01f Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Tue, 3 Nov 2026 00:26:42 +0100
Subject: add stream heartbeat

---
 src/config/mod.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/config')

diff --git a/src/config/mod.rs b/src/config/mod.rs
index 628f0ff..a6f70aa 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -249,6 +249,13 @@ pub(crate) const OPTIONS: &[OptionSpec] = &[
         None,
         "Where people reach this node's dashboard (http:// or https://, e.g. behind a reverse proxy). Published in the swarm's member list: the other nodes' dashboards open it on a double-click on this node. A build without the dashboard feature warns and publishes none (removing one published before).",
     ),
+    option(
+        "stream-heartbeat",
+        Kind::Duration,
+        "DURATION",
+        Some("30s"),
+        "How often GET /stream sends a blank line while nothing changes, so proxies in front keep it open: below their read timeout (nginx's proxy_read_timeout, 60 s by default). 0: never.",
+    ),
     option(
         "keepalive",
         Kind::Duration,
@@ -550,6 +557,11 @@ pub(crate) struct Settings {
     pub(crate) dashboard_url: Option<String>,
     #[serde(default = "default_keepalive", with = "crate::units::duration_option")]
     pub(crate) keepalive: Duration,
+    #[serde(
+        default = "default_stream_heartbeat",
+        with = "crate::units::duration_option"
+    )]
+    pub(crate) stream_heartbeat: Duration,
     #[serde(
         default,
         deserialize_with = "crate::units::optional_duration",
@@ -664,6 +676,9 @@ fn default_document_rewrite() -> Duration {
 fn default_keepalive() -> Duration {
     Duration::from_secs(60)
 }
+fn default_stream_heartbeat() -> Duration {
+    Duration::from_secs(30)
+}
 fn default_neighbours() -> usize {
     12
 }
-- 
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