feat(xanthous/server): Add simple prometheus metrics
Add a prometheus exporter and some simple prometheus metrics, so that I can look at dashboards and get alerts for things like lots of connections Change-Id: Ic1e0568200299dc852b74da647a6354267ee7576 Reviewed-on: https://cl.tvl.fyi/c/depot/+/3811 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
This commit is contained in:
Griffin Smith
grfn
parent
77f0d62a2c
commit
5327d238e3
4 changed files with 589 additions and 11 deletions
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@ -23,13 +23,33 @@ version = "0.7.5"
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@ -64,7 +93,7 @@ checksum = "321629d8ba6513061f26707241fa9bc89524ff1cd7a915a97ef0c62c666ce1b6"
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@ -138,6 +167,12 @@ dependencies = [
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||||
|
||||
[[package]]
|
||||
name = "memoffset"
|
||||
version = "0.6.4"
|
||||
|
|
@ -585,6 +860,70 @@ dependencies = [
|
|||
"autocfg",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "metrics"
|
||||
version = "0.17.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a00f42f354a2ed4894db863b3a4db47aef2d2e4435b937221749bd37a8a7aaa8"
|
||||
dependencies = [
|
||||
"ahash",
|
||||
"metrics-macros",
|
||||
"proc-macro-hack",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "metrics-exporter-prometheus"
|
||||
version = "0.6.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "343a5ceb38235928e7a5687412590f07e6d281522dcd9ff51246f8856eef5fe5"
|
||||
dependencies = [
|
||||
"hyper",
|
||||
"ipnet",
|
||||
"metrics",
|
||||
"metrics-util",
|
||||
"parking_lot",
|
||||
"quanta",
|
||||
"thiserror",
|
||||
"tokio",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "metrics-macros"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "caa72e4a3d157986dd2565c82ecbddcc23941513669a3766b938f6b72eb87f3f"
|
||||
dependencies = [
|
||||
"lazy_static",
|
||||
"proc-macro-hack",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"regex",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "metrics-util"
|
||||
version = "0.10.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "74c9b6aee519e1461b678952d3671652bb341d0664b1188f895a436a4e2e6ffa"
|
||||
dependencies = [
|
||||
"ahash",
|
||||
"aho-corasick",
|
||||
"atomic-shim",
|
||||
"crossbeam-epoch 0.9.5",
|
||||
"crossbeam-utils 0.8.5",
|
||||
"dashmap",
|
||||
"hashbrown",
|
||||
"indexmap",
|
||||
"metrics",
|
||||
"num_cpus",
|
||||
"ordered-float",
|
||||
"parking_lot",
|
||||
"quanta",
|
||||
"radix_trie",
|
||||
"sketches-ddsketch",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "miniz_oxide"
|
||||
version = "0.4.4"
|
||||
|
|
@ -617,6 +956,15 @@ dependencies = [
|
|||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "nibble_vec"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "77a5d83df9f36fe23f0c3648c6bbb8b0298bb5f1939c8f2704431371f4b84d43"
|
||||
dependencies = [
|
||||
"smallvec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "nix"
|
||||
version = "0.23.0"
|
||||
|
|
@ -625,9 +973,9 @@ checksum = "f305c2c2e4c39a82f7bf0bf65fb557f9070ce06781d4f2454295cc34b1c43188"
|
|||
dependencies = [
|
||||
"bitflags",
|
||||
"cc",
|
||||
"cfg-if",
|
||||
"cfg-if 1.0.0",
|
||||
"libc",
|
||||
"memoffset",
|
||||
"memoffset 0.6.4",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
|
|
@ -700,6 +1048,15 @@ version = "0.3.0"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
|
||||
|
||||
[[package]]
|
||||
name = "ordered-float"
|
||||
version = "2.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "97c9d06878b3a851e8026ef94bf7fef9ba93062cd412601da4d9cf369b1cc62d"
|
||||
dependencies = [
|
||||
"num-traits",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "os_str_bytes"
|
||||
version = "4.2.0"
|
||||
|
|
@ -715,6 +1072,31 @@ version = "1.3.0"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2386b4ebe91c2f7f51082d4cefa145d030e33a1842a96b12e4885cc3c01f7a55"
|
||||
|
||||
[[package]]
|
||||
name = "parking_lot"
|
||||
version = "0.11.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
|
||||
dependencies = [
|
||||
"instant",
|
||||
"lock_api",
|
||||
"parking_lot_core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "parking_lot_core"
|
||||
version = "0.8.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
|
||||
dependencies = [
|
||||
"cfg-if 1.0.0",
|
||||
"instant",
|
||||
"libc",
|
||||
"redox_syscall",
|
||||
"smallvec",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "password-hash"
|
||||
version = "0.2.3"
|
||||
|
|
@ -808,6 +1190,22 @@ dependencies = [
|
|||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quanta"
|
||||
version = "0.9.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "20afe714292d5e879d8b12740aa223c6a88f118af41870e8b6196e39a02238a8"
|
||||
dependencies = [
|
||||
"crossbeam-utils 0.8.5",
|
||||
"libc",
|
||||
"mach",
|
||||
"once_cell",
|
||||
"raw-cpuid",
|
||||
"wasi",
|
||||
"web-sys",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.10"
|
||||
|
|
@ -817,6 +1215,16 @@ dependencies = [
|
|||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "radix_trie"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c069c179fcdc6a2fe24d8d18305cf085fdbd4f922c041943e203685d6a1c58fd"
|
||||
dependencies = [
|
||||
"endian-type",
|
||||
"nibble_vec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rand"
|
||||
version = "0.8.4"
|
||||
|
|
@ -857,6 +1265,15 @@ dependencies = [
|
|||
"rand_core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "raw-cpuid"
|
||||
version = "10.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "929f54e29691d4e6a9cc558479de70db7aa3d98cd6fe7ab86d7507aa2886b9d2"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redox_syscall"
|
||||
version = "0.2.10"
|
||||
|
|
@ -882,6 +1299,8 @@ version = "1.5.4"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
|
||||
dependencies = [
|
||||
"aho-corasick",
|
||||
"memchr",
|
||||
"regex-syntax",
|
||||
]
|
||||
|
||||
|
|
@ -921,6 +1340,12 @@ dependencies = [
|
|||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "scopeguard"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
||||
|
||||
[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.130"
|
||||
|
|
@ -956,7 +1381,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
|||
checksum = "b69f9a4c9740d74c5baa3fd2e547f9525fa8088a8a958e0ca2409a514e33f5fa"
|
||||
dependencies = [
|
||||
"block-buffer",
|
||||
"cfg-if",
|
||||
"cfg-if 1.0.0",
|
||||
"cpufeatures",
|
||||
"digest",
|
||||
"opaque-debug",
|
||||
|
|
@ -980,6 +1405,12 @@ dependencies = [
|
|||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "sketches-ddsketch"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "76a77a8fd93886010f05e7ea0720e569d6d16c65329dbe3ec033bbbccccb017b"
|
||||
|
||||
[[package]]
|
||||
name = "slab"
|
||||
version = "0.4.5"
|
||||
|
|
@ -992,6 +1423,16 @@ version = "1.7.0"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
|
||||
|
||||
[[package]]
|
||||
name = "socket2"
|
||||
version = "0.4.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5dc90fe6c7be1a323296982db1836d1ea9e47b6839496dde9a541bc496df3516"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "strsim"
|
||||
version = "0.10.0"
|
||||
|
|
@ -1170,13 +1611,19 @@ dependencies = [
|
|||
"tokio",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tower-service"
|
||||
version = "0.3.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "360dfd1d6d30e05fda32ace2c8c70e9c0a9da713275777f5a4dbb8a1893930c6"
|
||||
|
||||
[[package]]
|
||||
name = "tracing"
|
||||
version = "0.1.29"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "375a639232caf30edfc78e8d89b2d4c375515393e7af7e16f01cd96917fb2105"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"cfg-if 1.0.0",
|
||||
"pin-project-lite",
|
||||
"tracing-attributes",
|
||||
"tracing-core",
|
||||
|
|
@ -1255,6 +1702,12 @@ dependencies = [
|
|||
"tracing-serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "try-lock"
|
||||
version = "0.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
|
||||
|
||||
[[package]]
|
||||
name = "typenum"
|
||||
version = "1.14.0"
|
||||
|
|
@ -1311,12 +1764,86 @@ dependencies = [
|
|||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "want"
|
||||
version = "0.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
|
||||
dependencies = [
|
||||
"log",
|
||||
"try-lock",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.10.2+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "632f73e236b219150ea279196e54e610f5dbafa5d61786303d4da54f84e47fce"
|
||||
dependencies = [
|
||||
"cfg-if 1.0.0",
|
||||
"wasm-bindgen-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-backend"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a317bf8f9fba2476b4b2c85ef4c4af8ff39c3c7f0cdfeed4f82c34a880aa837b"
|
||||
dependencies = [
|
||||
"bumpalo",
|
||||
"lazy_static",
|
||||
"log",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d56146e7c495528bf6587663bea13a8eb588d39b36b679d83972e1a2dbbdacf9"
|
||||
dependencies = [
|
||||
"quote",
|
||||
"wasm-bindgen-macro-support",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro-support"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7803e0eea25835f8abdc585cd3021b3deb11543c6fe226dcd30b228857c5c5ab"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0237232789cf037d5480773fe568aac745bfe2afbc11a863e97901780a6b47cc"
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.55"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "38eb105f1c59d9eaa6b5cdc92b859d85b926e82cb2e0945cd0c9259faa6fe9fb"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
|
|
@ -1358,6 +1885,8 @@ dependencies = [
|
|||
"eyre",
|
||||
"futures",
|
||||
"libc",
|
||||
"metrics",
|
||||
"metrics-exporter-prometheus",
|
||||
"nix",
|
||||
"pbkdf2",
|
||||
"thrussh",
|
||||
|
|
|
|||
|
|
@ -11,6 +11,8 @@ thrussh = "0.33.5"
|
|||
thrussh-keys = "0.21.0"
|
||||
tracing = "0.1.29"
|
||||
tracing-subscriber = "0.2.25"
|
||||
metrics = "0.17.0"
|
||||
metrics-exporter-prometheus = "0.6.1"
|
||||
futures = "0.3.17"
|
||||
libc = "0.2.103"
|
||||
nix = "0.23.0"
|
||||
|
|
|
|||
|
|
@ -1,5 +1,4 @@
|
|||
use std::net::SocketAddr;
|
||||
|
||||
use std::pin::Pin;
|
||||
use std::process::Command;
|
||||
use std::sync::Arc;
|
||||
|
|
@ -9,6 +8,7 @@ use color_eyre::eyre::Result;
|
|||
use eyre::{bail, eyre};
|
||||
use futures::future::{ready, Ready};
|
||||
use futures::Future;
|
||||
use metrics_exporter_prometheus::PrometheusBuilder;
|
||||
use nix::pty::Winsize;
|
||||
use pty::ChildHandle;
|
||||
use thrussh::ChannelId;
|
||||
|
|
@ -19,13 +19,18 @@ use thrussh::{
|
|||
use tokio::io::{AsyncReadExt, AsyncWriteExt};
|
||||
use tokio::net::TcpListener;
|
||||
use tokio::select;
|
||||
use tokio::time::Instant;
|
||||
use tracing::{debug, error, info, info_span, trace, warn, Instrument};
|
||||
use tracing_subscriber::EnvFilter;
|
||||
|
||||
use crate::pty::WaitPid;
|
||||
|
||||
mod metrics;
|
||||
mod pty;
|
||||
|
||||
use crate::metrics::reported::*;
|
||||
use crate::metrics::{decrement_gauge, histogram, increment_counter, increment_gauge};
|
||||
|
||||
/// SSH-compatible server for playing Xanthous
|
||||
#[derive(Parser, Debug)]
|
||||
struct Opts {
|
||||
|
|
@ -33,6 +38,10 @@ struct Opts {
|
|||
#[clap(long, short = 'a', default_value = "0.0.0.0:22")]
|
||||
address: String,
|
||||
|
||||
/// Address to listen to for metrics
|
||||
#[clap(long, default_value = "0.0.0.0:9000")]
|
||||
metrics_address: SocketAddr,
|
||||
|
||||
/// Format to use when emitting log events
|
||||
#[clap(
|
||||
long,
|
||||
|
|
@ -132,6 +141,7 @@ impl Handler {
|
|||
|
||||
let child = pty::spawn(cmd, Some(winsize), None).await?;
|
||||
info!(pid = %child.pid, "Spawned child");
|
||||
increment_gauge!(RUNNING_PROCESSES, 1.0);
|
||||
self.child = Some(child.handle().await?);
|
||||
tokio::spawn(
|
||||
async move {
|
||||
|
|
@ -143,6 +153,7 @@ impl Handler {
|
|||
span.in_scope(|| error!(%error, "Error running child"));
|
||||
let _ = handle.close(channel_id).await;
|
||||
}
|
||||
decrement_gauge!(RUNNING_PROCESSES, 1.0);
|
||||
}
|
||||
.in_current_span(),
|
||||
);
|
||||
|
|
@ -285,12 +296,19 @@ async fn main() -> Result<()> {
|
|||
color_eyre::install()?;
|
||||
let opts = Box::leak::<'static>(Box::new(Opts::parse()));
|
||||
opts.init_logging()?;
|
||||
PrometheusBuilder::new()
|
||||
.listen_address(opts.metrics_address)
|
||||
.install()?;
|
||||
metrics::register();
|
||||
|
||||
let config = Arc::new(opts.ssh_server_config()?);
|
||||
info!(address = %opts.address, "Listening for new SSH connections");
|
||||
let listener = TcpListener::bind(&opts.address).await?;
|
||||
|
||||
loop {
|
||||
let (stream, address) = listener.accept().await?;
|
||||
increment_counter!(CONNECTIONS_ACCEPTED);
|
||||
increment_gauge!(ACTIVE_CONNECTIONS, 1.0);
|
||||
let config = config.clone();
|
||||
let handler = Handler {
|
||||
xanthous_binary_path: &opts.xanthous_binary_path,
|
||||
|
|
@ -300,12 +318,17 @@ async fn main() -> Result<()> {
|
|||
};
|
||||
tokio::spawn(async move {
|
||||
let span = info_span!("client", address = %handler.address);
|
||||
let start = Instant::now();
|
||||
if let Err(error) = server::run_stream(config, stream, handler)
|
||||
.instrument(span.clone())
|
||||
.await
|
||||
{
|
||||
span.in_scope(|| error!(%error));
|
||||
}
|
||||
let duration = start.elapsed();
|
||||
span.in_scope(|| info!(duration_ms = %duration.as_millis(), "Client disconnected"));
|
||||
histogram!(CONNECTION_DURATION, duration);
|
||||
decrement_gauge!(ACTIVE_CONNECTIONS, 1.0);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
|
|||
24
users/grfn/xanthous/server/src/metrics.rs
Normal file
24
users/grfn/xanthous/server/src/metrics.rs
Normal file
|
|
@ -0,0 +1,24 @@
|
|||
pub use ::metrics::*;
|
||||
|
||||
pub mod reported {
|
||||
/// Counter: Connections accepted on the TCP listener
|
||||
pub const CONNECTIONS_ACCEPTED: &str = "ssh.connections.accepted";
|
||||
|
||||
/// Histogram: Connection duration
|
||||
pub const CONNECTION_DURATION: &str = "ssh.connections.duration";
|
||||
|
||||
/// Gauge: Currently active connections
|
||||
pub const ACTIVE_CONNECTIONS: &str = "ssh.connections.active";
|
||||
|
||||
/// Gauge: Currently running xanthous processes
|
||||
pub const RUNNING_PROCESSES: &str = "ssh.child.processes";
|
||||
}
|
||||
|
||||
pub fn register() {
|
||||
use reported::*;
|
||||
|
||||
register_counter!(CONNECTIONS_ACCEPTED);
|
||||
register_histogram!(CONNECTION_DURATION);
|
||||
register_gauge!(ACTIVE_CONNECTIONS);
|
||||
register_gauge!(RUNNING_PROCESSES);
|
||||
}
|
||||
Loading…
Reference in a new issue