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pub mod check;
pub mod log;
pub mod mail;
pub mod web;
use ::log::error;
use anyhow::{anyhow, Result};
use axum::{routing::get, Router};
use check::check_loop;
use mail::MailConfig;
use serde::Deserialize;
use std::{
collections::BTreeMap,
net::SocketAddr,
sync::Arc,
time::{Duration, SystemTime},
};
use tokio::{fs::read_to_string, sync::RwLock};
use web::send_html_page;
pub static GLOBAL_ERROR: RwLock<Option<anyhow::Error>> = RwLock::const_new(None);
#[tokio::main]
async fn main() {
env_logger::init_from_env("LOG");
if let Err(e) = run().await {
error!("{e:?}")
}
}
#[derive(Debug, Deserialize)]
pub struct Config {
mail: Option<MailConfig>,
title: String,
bind: SocketAddr,
interval: u64,
services: Vec<Service>,
}
#[derive(Debug, Deserialize)]
pub struct Service {
title: String,
url: Option<String>,
checks: Vec<Check>,
}
#[derive(Debug, Deserialize)]
#[serde(rename_all = "snake_case")]
pub enum Check {
Systemd(String),
Http { title: Option<String>, url: String },
Shell { title: String, command: String },
}
#[derive(Debug, Clone)]
pub struct Success {
pub latency: Option<Duration>,
pub updated: SystemTime,
}
impl Default for Success {
fn default() -> Self {
Self {
latency: None,
updated: SystemTime::now(),
}
}
}
static STATUS: RwLock<BTreeMap<(usize, usize), Result<Success>>> =
RwLock::const_new(BTreeMap::new());
async fn run() -> anyhow::Result<()> {
let config = std::env::args()
.nth(1)
.ok_or(anyhow!("expected config path as first argument"))?;
let config = read_to_string(config).await?;
let config = Arc::<Config>::new(serde_yaml::from_str(&config)?);
for i in 0..config.services.len() {
tokio::task::spawn(check_loop(config.clone(), i));
}
let app = Router::new().route(
"/",
get({
let config = config.clone();
move || send_html_page(config.clone())
}),
);
let listener = tokio::net::TcpListener::bind(config.bind).await?;
axum::serve(listener, app).await?;
Ok(())
}
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