feat: allow configuring timeout

This commit is contained in:
Jan Christian Grünhage 2022-03-17 11:13:32 +01:00
parent 1c1a31dbec
commit a803fdd213
5 changed files with 107 additions and 7 deletions

79
Cargo.lock generated
View File

@ -85,12 +85,47 @@ dependencies = [
"ansi_term",
"atty",
"bitflags",
"strsim",
"strsim 0.8.0",
"textwrap",
"unicode-width",
"vec_map",
]
[[package]]
name = "darling"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d0d720b8683f8dd83c65155f0530560cba68cd2bf395f6513a483caee57ff7f4"
dependencies = [
"darling_core",
"darling_macro",
]
[[package]]
name = "darling_core"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7a340f241d2ceed1deb47ae36c4144b2707ec7dd0b649f894cb39bb595986324"
dependencies = [
"fnv",
"ident_case",
"proc-macro2",
"quote",
"strsim 0.10.0",
"syn",
]
[[package]]
name = "darling_macro"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "72c41b3b7352feb3211a0d743dc5700a4e3b60f51bd2b368892d1e0f9a95f44b"
dependencies = [
"darling_core",
"quote",
"syn",
]
[[package]]
name = "fern"
version = "0.6.0"
@ -301,6 +336,12 @@ dependencies = [
"want",
]
[[package]]
name = "ident_case"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
[[package]]
name = "indexmap"
version = "1.6.2"
@ -464,6 +505,7 @@ dependencies = [
"log",
"prometheus",
"serde",
"serde_with",
"tokio",
"tokio-icmp-echo",
"toml",
@ -607,6 +649,12 @@ dependencies = [
"bitflags",
]
[[package]]
name = "rustversion"
version = "1.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f2cc38e8fa666e2de3c4aba7edeb5ffc5246c1c2ed0e3d17e560aeeba736b23f"
[[package]]
name = "scopeguard"
version = "1.1.0"
@ -633,6 +681,29 @@ dependencies = [
"syn",
]
[[package]]
name = "serde_with"
version = "1.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ec1e6ec4d8950e5b1e894eac0d360742f3b1407a6078a604a731c4b3f49cefbc"
dependencies = [
"rustversion",
"serde",
"serde_with_macros",
]
[[package]]
name = "serde_with_macros"
version = "1.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12e47be9471c72889ebafb5e14d5ff930d89ae7a67bbdb5f8abb564f845a927e"
dependencies = [
"darling",
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "slab"
version = "0.4.3"
@ -661,6 +732,12 @@ version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
[[package]]
name = "strsim"
version = "0.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
[[package]]
name = "syn"
version = "1.0.70"

View File

@ -20,6 +20,7 @@ fern = "0.6"
log = { version = "0.4", features = ["serde"] }
chrono = "0.4"
serde = { version = "1", features = ["derive"] }
serde_with = "1"
tokio-icmp-echo = "0.4"
futures-util = "0.3"
anyhow = "1"

View File

@ -2,6 +2,11 @@
# Takes the format IPv4:port or [IPv6]:port
listener = "[::]:9898"
# Configuration of peshmings pinging behaviour
[ping]
# The timeout is specified in milliseconds, with a default of 3 seconds.
# timeout = 3000
# Array of hosts to ping. Currently only supports plain IPs, no DNS names.
# The format here is `"host" = interval in milliseconds`, so these examples
# will ping the primary and secondary IP of cloudflare's 1.1.1.1 DNS service

View File

@ -21,7 +21,8 @@ use anyhow::{Context, Result};
use clap::{clap_app, crate_authors, crate_description, crate_name, crate_version};
use log::info;
use serde::Deserialize;
use std::collections::HashMap;
use serde_with::{serde_as, DurationMilliSeconds};
use std::{collections::HashMap, time::Duration};
#[derive(Deserialize, Clone)]
pub(crate) struct Config {
@ -31,11 +32,19 @@ pub(crate) struct Config {
pub(crate) log: LogConfig,
}
#[serde_as]
#[derive(Deserialize, Clone)]
pub(crate) struct PingConfig {
#[serde_as(as = "DurationMilliSeconds<f64>")]
#[serde(default = "default_timeout")]
pub(crate) timeout: Duration,
pub(crate) hosts: HashMap<std::net::IpAddr, u64>,
}
fn default_timeout() -> Duration {
Duration::from_secs(3)
}
#[derive(Deserialize, Clone)]
pub(crate) struct LogConfig {
pub(crate) level: log::LevelFilter,

View File

@ -46,15 +46,20 @@ pub(crate) async fn start_pinging_hosts(config: &Config) -> Result<()> {
let mut handles = vec![];
for (host, interval) in config.ping.hosts.clone() {
info!("Spawn ping task for {}", host);
handles.push(tokio::spawn(ping_host(pinger.clone(), host, interval)));
handles.push(tokio::spawn(ping_host(
pinger.clone(),
host,
interval,
config.ping.timeout,
)));
}
let (result, _, _) = futures::future::select_all(handles).await;
result??;
Ok(())
}
async fn ping_host(pinger: Pinger, host: IpAddr, interval: u64) -> Result<()> {
let mut pingchain = pinger.chain(host).timeout(Duration::from_secs(3));
async fn ping_host(pinger: Pinger, host: IpAddr, interval: u64, timeout: Duration) -> Result<()> {
let mut pingchain = pinger.chain(host).timeout(timeout);
let mut interval = tokio::time::interval(Duration::from_millis(interval));
let host_string = host.to_string();
loop {
@ -62,11 +67,12 @@ async fn ping_host(pinger: Pinger, host: IpAddr, interval: u64) -> Result<()> {
tokio::spawn(catch(handle_ping_result(
pingchain.send(),
host_string.clone(),
timeout,
)));
}
}
async fn handle_ping_result(result: PingFuture, host: String) -> Result<()> {
async fn handle_ping_result(result: PingFuture, host: String, timeout: Duration) -> Result<()> {
let pong = result.await.context(format!("Couldn't ping {}", &host))?;
match pong {
Some(time) => {
@ -78,7 +84,9 @@ async fn handle_ping_result(result: PingFuture, host: String) -> Result<()> {
}
None => {
trace!("Received no response from {} within timeout", &host);
PING_HISTOGRAM.with_label_values(&[&host]).observe(3000.0);
PING_HISTOGRAM
.with_label_values(&[&host])
.observe(timeout.as_millis() as f64);
}
};