monitor/src/utils/hagent.rs

70 lines
2.2 KiB
Rust

// module needed to check host-agent health condition and to communicate with it
/// asdasdasds
use tokio::{io::Interest, net::UnixStream};
async fn open_unix_socket() -> Result<UnixStream, std::io::Error> {
let socket = UnixStream::connect("/var/run/enode/hostagent.sock").await?;
Ok(socket)
}
async fn ha_healthcheck(socket: &UnixStream) -> Result<(), std::io::Error >{
socket.ready(Interest::WRITABLE).await?;
if socket.writable().await.is_ok() {
if let Err(er) = socket.try_write(b"Hello HAgent") {
return Err(er);
}
} else {
return Err(std::io::ErrorKind::WouldBlock.into());
}
Ok(())
}
async fn ha_send_data(socket: &UnixStream, data: &str) -> Result<(), std::io::Error > {
socket.ready(Interest::WRITABLE).await?;
if socket.writable().await.is_ok() {
if let Err(er) = socket.try_write(data.as_bytes()) {
return Err(er);
}
} else {
return Err(std::io::ErrorKind::WouldBlock.into());
}
Ok(())
}
#[cfg(test)]
mod hagent_unittets {
use super::*;
#[tokio::test]
// maybe bool : true -> alive, false -> dead
// simple request on api
async fn hagent_healthcheck() {
let sock = open_unix_socket().await;
assert!(sock.is_ok());
let sock = sock.unwrap();
assert!(ha_healthcheck(&sock).await.is_ok());
}
#[tokio::test]
// --Result<maybe Response>
// one-shot func
async fn send_metrics_to_hagent() {
use crate::options::structs::{ProcessMetrics, ContainerMetrics, Metrics};
let procm = ProcessMetrics::new("test-prc", 15.0, 5.0);
let contm = ContainerMetrics::new("test", 32.0, 12.0, vec![procm.process_name.clone()]);
let metrics = Metrics::new(contm, vec![procm]);
let metrics = &serde_json::to_string_pretty(&metrics).unwrap();
let sock = open_unix_socket().await;
assert!(sock.is_ok());
let sock = sock.unwrap();
assert!(ha_healthcheck(&sock).await.is_ok());
assert!(ha_send_data(&sock, &metrics).await.is_ok());
}
#[tokio::test]
async fn open_unixsocket_test() {
assert!(open_unix_socket().await.is_ok());
}
}