mirror of
https://github.com/chylex/Apache-Prometheus-Exporter.git
synced 2025-04-22 10:15:46 +02:00
Add web server with metrics endpoint
This commit is contained in:
parent
0500efb0c7
commit
507bfc1137
GPG Key ID:
4DE42C8F19A80548
817
Cargo.lock
generated
817
Cargo.lock
generated
@ -2,10 +2,232 @@
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# It is not intended for manual editing.
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version = 3
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||||
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||||
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|
||||
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||||
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||||
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||||
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||||
|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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||||
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|
||||
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||||
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||||
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||||
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||||
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"mio",
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[[package]]
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||||
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|
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|
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|
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|
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"futures-core",
|
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"futures-util",
|
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"http",
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"itoa",
|
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"language-tags",
|
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"log",
|
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"mime",
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"once_cell",
|
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"pin-project-lite",
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"regex",
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|
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[[package]]
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@ -18,24 +240,113 @@ version = "1.1.0"
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|
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||||
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|
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||||
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|
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|
||||
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|
||||
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|
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|
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@ -56,12 +367,54 @@ dependencies = [
|
||||
"once_cell",
|
||||
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|
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||||
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|
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|
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|
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@ -74,12 +427,49 @@ dependencies = [
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|
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|
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[[package]]
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|
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@ -99,6 +489,104 @@ dependencies = [
|
||||
"slab",
|
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|
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[[package]]
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|
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|
||||
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|
||||
"http",
|
||||
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|
||||
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|
||||
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|
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|
||||
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|
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|
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|
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|
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|
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|
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|
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|
||||
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|
||||
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|
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|
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|
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|
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|
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|
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|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
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|
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|
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|
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|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
@ -145,6 +642,12 @@ dependencies = [
|
||||
"libc",
|
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|
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|
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[[package]]
|
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|
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@ -163,6 +666,24 @@ dependencies = [
|
||||
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|
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|
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|
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[[package]]
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|
||||
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|
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|
||||
|
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||||
|
||||
[[package]]
|
||||
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|
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|
||||
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|
||||
@ -217,6 +753,25 @@ dependencies = [
|
||||
"winapi",
|
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|
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|
||||
[[package]]
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||||
@ -246,12 +801,24 @@ dependencies = [
|
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|
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|
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|
||||
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|
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@ -305,6 +878,36 @@ dependencies = [
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||||
[[package]]
|
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|
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@ -374,6 +1055,39 @@ dependencies = [
|
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|
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|
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|
||||
"memchr",
|
||||
"mio",
|
||||
"once_cell",
|
||||
"parking_lot",
|
||||
"pin-project-lite",
|
||||
"signal-hook-registry",
|
||||
"socket2",
|
||||
@ -404,12 +1119,85 @@ dependencies = [
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tokio-util"
|
||||
version = "0.7.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0bb2e075f03b3d66d8d8785356224ba688d2906a371015e225beeb65ca92c740"
|
||||
dependencies = [
|
||||
"bytes",
|
||||
"futures-core",
|
||||
"futures-sink",
|
||||
"pin-project-lite",
|
||||
"tokio",
|
||||
"tracing",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tracing"
|
||||
version = "0.1.36"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2fce9567bd60a67d08a16488756721ba392f24f29006402881e43b19aac64307"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"log",
|
||||
"pin-project-lite",
|
||||
"tracing-core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tracing-core"
|
||||
version = "0.1.29"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5aeea4303076558a00714b823f9ad67d58a3bbda1df83d8827d21193156e22f7"
|
||||
dependencies = [
|
||||
"once_cell",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "typenum"
|
||||
version = "1.15.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-bidi"
|
||||
version = "0.3.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-normalization"
|
||||
version = "0.1.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "854cbdc4f7bc6ae19c820d44abdc3277ac3e1b2b93db20a636825d9322fb60e6"
|
||||
dependencies = [
|
||||
"tinyvec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "url"
|
||||
version = "2.3.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0d68c799ae75762b8c3fe375feb6600ef5602c883c5d21eb51c09f22b83c4643"
|
||||
dependencies = [
|
||||
"form_urlencoded",
|
||||
"idna",
|
||||
"percent-encoding",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||
|
||||
[[package]]
|
||||
name = "walkdir"
|
||||
version = "2.3.2"
|
||||
@ -500,3 +1288,32 @@ name = "windows_x86_64_msvc"
|
||||
version = "0.36.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
|
||||
|
||||
[[package]]
|
||||
name = "zstd"
|
||||
version = "0.11.2+zstd.1.5.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "20cc960326ece64f010d2d2107537f26dc589a6573a316bd5b1dba685fa5fde4"
|
||||
dependencies = [
|
||||
"zstd-safe",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zstd-safe"
|
||||
version = "5.0.2+zstd.1.5.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1d2a5585e04f9eea4b2a3d1eca508c4dee9592a89ef6f450c11719da0726f4db"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"zstd-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zstd-sys"
|
||||
version = "2.0.1+zstd.1.5.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9fd07cbbc53846d9145dbffdf6dd09a7a0aa52be46741825f5c97bdd4f73f12b"
|
||||
dependencies = [
|
||||
"cc",
|
||||
"libc",
|
||||
]
|
||||
|
||||
@ -10,7 +10,8 @@ path = "src/main.rs"
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
prometheus-client = "0.18.0"
|
||||
tokio = { version = "1", features = ["rt", "macros", "signal"] }
|
||||
actix-web = "4.1.0"
|
||||
linemux = "0.2.4"
|
||||
path-slash = "0.2.1"
|
||||
prometheus-client = "0.18.0"
|
||||
tokio = { version = "1", features = ["rt", "macros", "signal"] }
|
||||
|
||||
12
src/apache_metrics.rs
Normal file
12
src/apache_metrics.rs
Normal file
@ -0,0 +1,12 @@
|
||||
use prometheus_client::registry::Registry;
|
||||
|
||||
#[derive(Clone)]
|
||||
pub struct ApacheMetrics {}
|
||||
|
||||
impl ApacheMetrics {
|
||||
pub fn new() -> (Registry, ApacheMetrics) {
|
||||
let mut registry = <Registry>::default();
|
||||
let metrics = ApacheMetrics {};
|
||||
return (registry, metrics);
|
||||
}
|
||||
}
|
||||
@ -6,16 +6,17 @@ use std::path::PathBuf;
|
||||
use linemux::MuxedLines;
|
||||
use tokio::sync::mpsc::UnboundedSender;
|
||||
|
||||
use crate::ApacheMetrics;
|
||||
use crate::log_file_pattern::LogFilePath;
|
||||
|
||||
pub async fn read_logs_task(log_files: Vec<LogFilePath>, shutdown_send: UnboundedSender<()>) {
|
||||
if let Err(error) = read_logs(log_files).await {
|
||||
pub async fn read_logs_task(log_files: Vec<LogFilePath>, metrics: ApacheMetrics, shutdown_send: UnboundedSender<()>) {
|
||||
if let Err(error) = read_logs(log_files, metrics).await {
|
||||
println!("[LogWatcher] Error reading logs: {}", error);
|
||||
shutdown_send.send(()).unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
async fn read_logs(log_files: Vec<LogFilePath>) -> io::Result<()> {
|
||||
async fn read_logs(log_files: Vec<LogFilePath>, metrics: ApacheMetrics) -> io::Result<()> {
|
||||
let mut file_reader = MuxedLines::new()?;
|
||||
let mut label_lookup: HashMap<PathBuf, &String> = HashMap::new();
|
||||
|
||||
|
||||
14
src/main.rs
14
src/main.rs
@ -1,14 +1,23 @@
|
||||
use std::env;
|
||||
use std::sync::Mutex;
|
||||
|
||||
use tokio::signal;
|
||||
use tokio::sync::mpsc;
|
||||
|
||||
use crate::apache_metrics::ApacheMetrics;
|
||||
use crate::log_file_pattern::parse_log_file_pattern_from_env;
|
||||
use crate::log_watcher::read_logs_task;
|
||||
use crate::web_server::{create_web_server, run_web_server};
|
||||
|
||||
mod log_file_pattern;
|
||||
mod log_watcher;
|
||||
mod apache_metrics;
|
||||
mod web_server;
|
||||
|
||||
#[tokio::main(flavor = "current_thread")]
|
||||
async fn main() {
|
||||
let host = env::var("HTTP_HOST").unwrap_or(String::from("127.0.0.1"));
|
||||
|
||||
println!("Initializing exporter...");
|
||||
|
||||
let log_file_pattern = match parse_log_file_pattern_from_env() {
|
||||
@ -36,8 +45,11 @@ async fn main() {
|
||||
println!("Found log file: {} (label \"{}\")", log_file.path.display(), log_file.label);
|
||||
}
|
||||
|
||||
let (metrics_registry, metrics) = ApacheMetrics::new();
|
||||
let (shutdown_send, mut shutdown_recv) = mpsc::unbounded_channel();
|
||||
tokio::spawn(read_logs_task(log_files, shutdown_send.clone()));
|
||||
|
||||
tokio::spawn(read_logs_task(log_files, metrics.clone(), shutdown_send.clone()));
|
||||
tokio::spawn(run_web_server(create_web_server(host.as_str(), 9240, Mutex::new(metrics_registry))));
|
||||
|
||||
drop(shutdown_send);
|
||||
|
||||
|
||||
54
src/web_server.rs
Normal file
54
src/web_server.rs
Normal file
@ -0,0 +1,54 @@
|
||||
use std::str;
|
||||
use std::sync::Mutex;
|
||||
use std::time::Duration;
|
||||
|
||||
use actix_web::{App, HttpResponse, HttpServer, Result, web};
|
||||
use actix_web::dev::Server;
|
||||
use prometheus_client::encoding::text::encode;
|
||||
use prometheus_client::registry::Registry;
|
||||
|
||||
//noinspection HttpUrlsUsage
|
||||
pub fn create_web_server(host: &str, port: u16, metrics_registry: Mutex<Registry>) -> Server {
|
||||
let metrics_registry = web::Data::new(metrics_registry);
|
||||
|
||||
let server = HttpServer::new(move || {
|
||||
App::new()
|
||||
.app_data(metrics_registry.clone())
|
||||
.service(web::resource("/metrics").route(web::get().to(metrics_handler)))
|
||||
});
|
||||
|
||||
let server = server.keep_alive(Duration::from_secs(60));
|
||||
let server = server.shutdown_timeout(0);
|
||||
let server = server.disable_signals();
|
||||
let server = server.workers(1);
|
||||
let server = server.bind((host, port));
|
||||
|
||||
println!("[WebServer] Starting web server on http://{}:{}", host, port);
|
||||
return server.unwrap().run();
|
||||
}
|
||||
|
||||
pub async fn run_web_server(server: Server) {
|
||||
if let Err(e) = server.await {
|
||||
println!("[WebServer] Error running web server: {}", e);
|
||||
}
|
||||
}
|
||||
|
||||
async fn metrics_handler(metrics_registry: web::Data<Mutex<Registry>>) -> Result<HttpResponse> {
|
||||
let mut buf = Vec::new();
|
||||
|
||||
{
|
||||
if let Ok(metrics_registry) = metrics_registry.lock() {
|
||||
encode(&mut buf, &metrics_registry)?;
|
||||
} else {
|
||||
println!("[WebServer] Failed acquiring lock on registry.");
|
||||
return Ok(HttpResponse::InternalServerError().body(""));
|
||||
}
|
||||
}
|
||||
|
||||
if let Ok(buf) = String::from_utf8(buf) {
|
||||
Ok(HttpResponse::Ok().content_type("application/openmetrics-text; version=1.0.0; charset=utf-8").body(buf))
|
||||
} else {
|
||||
println!("[WebServer] Failed converting buffer to UTF-8.");
|
||||
Ok(HttpResponse::InternalServerError().body(""))
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user