Option to disable heavy metrics

Author: gorbak25

config.example.toml

@@ -15,6 +15,9 @@ path = "/var/run/corrosion/admin.sock"
 
 [telemetry]
 prometheus.addr = "127.0.0.1:9090"
+# Disable heavy metrics collection
+# Set to true to disable on resource-constrained VMs
+# disable-heavy-metrics = false
 
 [log]
 format = "json"

crates/corro-agent/src/agent/run_root.rs

@@ -139,7 +139,10 @@ async fn run(
         transport.clone(),
         tripwire.clone(),
     ));
-    spawn_counted(metrics::heavy_metrics_loop(agent.clone(), tripwire.clone()));
+
+    if !agent.config().telemetry.disable_heavy_metrics {
+        spawn_counted(metrics::heavy_metrics_loop(agent.clone(), tripwire.clone()));
+    }
     spawn_counted(handlers::handle_gossip_to_send(
         transport.clone(),
         to_send_rx,

crates/corro-types/src/config.rs

@@ -86,6 +86,8 @@ pub struct Config {
 pub struct TelemetryConfig {
     pub prometheus: Option<PrometheusConfig>,
     pub open_telemetry: Option<OtelConfig>,
+    #[serde(default)]
+    pub disable_heavy_metrics: bool,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -422,6 +424,7 @@ impl ConfigBuilder {
                 .prometheus_addr
                 .map(|bind_addr| PrometheusConfig { bind_addr }),
             open_telemetry: None,
+            disable_heavy_metrics: false,
         };
 
         if self.api_addr.is_empty() {