add sysinfo

Cargo.toml

@@ -8,3 +8,4 @@ edition = "2021"
 [dependencies]
 reqwest = "0.11.7"
 tokio = { version = "1.15.0", features = ["full"] }
+sysinfo = "0.22.2"

src/main.rs

@@ -1,5 +1,29 @@
+use sysinfo::{DiskExt, System, SystemExt};
 
 #[tokio::main]
 async fn main() {
-    // TODO get system info and record to SLS
+    let mut sys = System::new_all();
+    sys.refresh_all();
+
+    let host_name = sys.host_name().unwrap_or_else(|| "unknown".into());
+
+
+// We display all disks' information:
+    println!("=> disks:");
+    for disk in sys.disks() {
+        println!("{:?}", disk.mount_point());
+    }
+
+    println!("=> system:");
+// RAM and swap information:
+    println!("total memory: {} KB", sys.total_memory());
+    println!("used memory : {} KB", sys.used_memory());
+    println!("total swap  : {} KB", sys.total_swap());
+    println!("used swap   : {} KB", sys.used_swap());
+
+// Display system information:
+    println!("System name:             {:?}", sys.name());
+    println!("System kernel version:   {:?}", sys.kernel_version());
+    println!("System OS version:       {:?}", sys.os_version());
+    println!("System host name:        {:?}", sys.host_name());
 }