Fix lnetctl not found

iml-agent/src/network_interfaces.rs

@@ -6,8 +6,9 @@ use crate::{
  agent_error::ImlAgentError, network_interface::parse as parse_interfaces,
  network_interface_stats,
 };
-use iml_cmd::{CheckedCommandExt, Command};
+use iml_cmd::{CheckedCommandExt, CmdError, Command};
 use iml_wire_types::{LNet, NetworkInterface};
+use std::io;
 
 fn ip_addr_cmd() -> Command {
  let mut cmd = Command::new("ip");
@@ -48,9 +49,19 @@ pub async fn get_interfaces() -> Result<Vec<NetworkInterface>, ImlAgentError> {
 }
 
 pub async fn get_lnet_data() -> Result<LNet, ImlAgentError> {
- let output = get_lnet_data_cmd().checked_output().await?;
+ let r = get_lnet_data_cmd().checked_output().await;
 
- let lnet_data = std::str::from_utf8(&output.stdout)?.trim();
+ let x = match r {
+ Ok(x) => Ok(x.stdout),
+ Err(CmdError::Io(ref err)) if err.kind() == io::ErrorKind::NotFound => {
+ tracing::debug!("lnetctl was not found. Will not send net data");
+
+ Ok(vec![])
+ }
+ Err(e) => Err(e),
+ }?;
+
+ let lnet_data = std::str::from_utf8(&x)?.trim();
 
  if lnet_data.is_empty() {
  return Ok(LNet::default());