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feat(prometheus): add build_info metric

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Signed-off-by: Nicolas Lamirault <nicolas.lamirault@gmail.com>
This commit is contained in:
Nicolas Lamirault 2024-09-03 10:12:08 +02:00
parent 9a756cf2c5
commit 7bfcd76628
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2 changed files with 13 additions and 0 deletions
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7
meilisearch/src/metrics.rs
View File

@ -5,6 +5,13 @@ use prometheus::{
};
lazy_static! {
pub static ref MEILISEARCH_BUILD_INFO: IntGaugeVec = register_int_gauge_vec!(
opts!(
"meilisearch_build_info",
"A metric with a constant '1' value labelled by version from which meilisearch was built"),
& ["revision", "version"]
)
.expect("Can't create a metric");
pub static ref MEILISEARCH_HTTP_REQUESTS_TOTAL: IntCounterVec = register_int_counter_vec!(
opts!("meilisearch_http_requests_total", "Meilisearch HTTP requests total"),
&["method", "path", "status"]

6
meilisearch/src/routes/metrics.rs
View File

@ -1,6 +1,7 @@
use actix_web::http::header;
use actix_web::web::{self, Data};
use actix_web::HttpResponse;
use build_info;
use index_scheduler::IndexScheduler;
use meilisearch_auth::AuthController;
use meilisearch_types::error::ResponseError;
@ -54,6 +55,11 @@ pub async fn get_metrics(
}
crate::metrics::MEILISEARCH_IS_INDEXING.set(index_scheduler.is_task_processing()? as i64);
let build_info = build_info::BuildInfo::from_build();
let commit_sha = build_info.commit_sha1.unwrap_or("unknown").to_string();
let pkg_version = env!("CARGO_PKG_VERSION").to_string();
crate::metrics::MEILISEARCH_BUILD_INFO.with_label_values(&[&commit_sha, &pkg_version]).set(1);
let encoder = TextEncoder::new();
let mut buffer = vec![];
encoder.encode(&prometheus::gather(), &mut buffer).expect("Failed to encode metrics");