add experimental rrd api to get cpu stats

src/api2/node/rrd.rs

@@ -0,0 +1,34 @@
+use anyhow::Error;
+use serde_json::Value;
+
+use proxmox::api::{api, Router};
+
+use crate::api2::types::*;
+
+#[api(
+    input: {
+        properties: {
+            node: {
+                schema: NODE_SCHEMA,
+            },
+            timeframe: {
+                type: RRDTimeFrameResolution,
+            },
+            cf: {
+                type: RRDMode,
+            },
+        },
+    },
+)]
+/// Read CPU stats
+fn get_cpu_stats(
+    timeframe: RRDTimeFrameResolution,
+    cf: RRDMode,
+    _param: Value,
+) -> Result<Value, Error> {
+
+    crate::rrd::extract_data("host/cpu", timeframe, cf)
+}
+
+pub const ROUTER: Router = Router::new()
+    .get(&API_METHOD_GET_CPU_STATS);