add stream heartbeat

1 files changed, 15 insertions, 0 deletions

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
@@ -250,6 +250,13 @@ pub(crate) const OPTIONS: &[OptionSpec] = &[
         "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,
         "DURATION",
@@ -551,6 +558,11 @@ pub(crate) struct Settings {
     #[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",
         serialize_with = "crate::units::serialize_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
 }