chore(deps): updates OpenTelemetry dependencies

Updates policy-server to use the latest version of OpenTelemetry
libraries.

Signed-off-by: José Guilherme Vanz <jguilhermevanz@suse.com>

Author: jvanz

Cargo.lock

@@ -22,12 +22,12 @@ k8s-openapi = { version = "0.23.0", default-features = false, features = [
 lazy_static = "1.4.0"
 mime = "0.3"
 num_cpus = "1.16.0"
-opentelemetry-otlp = { version = "0.26.0", features = ["metrics", "tonic"] }
-opentelemetry = { version = "0.26.0", default-features = false, features = [
+opentelemetry-otlp = { version = "0.27.0", features = ["metrics", "tonic"] }
+opentelemetry = { version = "0.27.0", default-features = false, features = [
   "metrics",
   "trace",
 ] }
-opentelemetry_sdk = { version = "0.26.0", features = ["rt-tokio"] }
+opentelemetry_sdk = { version = "0.27.0", features = ["rt-tokio"] }
 pprof = { version = "0.14", features = ["prost-codec"] }
 policy-evaluator = { git = "https://github.com/kubewarden/policy-evaluator", tag = "v0.19.3" }
 rustls = { version = "0.23", default-features = false, features = [
@@ -46,7 +46,7 @@ sha2 = "0.10"
 thiserror = "2.0"
 tokio = { version = "^1.41.0", features = ["full"] }
 tracing = "0.1"
-tracing-opentelemetry = "0.27.0"
+tracing-opentelemetry = "0.28.0"
 tracing-subscriber = { version = "0.3", features = ["ansi", "fmt", "json"] }
 semver = { version = "1.0.22", features = ["serde"] }
 mockall_double = "0.3"

Cargo.toml

@@ -11,17 +11,18 @@ pub use policy_evaluations_latency::record_policy_latency;
 const METER_NAME: &str = "kubewarden";
 
 pub fn setup_metrics() -> Result<()> {
-    let meter_provider = opentelemetry_otlp::new_pipeline()
-        .metrics(runtime::Tokio)
-        .with_exporter(
-            opentelemetry_otlp::new_exporter()
-                .tonic()
-                .with_export_config(ExportConfig::default()),
-        )
-        .build()?;
-
-    global::set_meter_provider(meter_provider.clone());
-
+    let meter_reader = opentelemetry_sdk::metrics::PeriodicReader::builder(
+        opentelemetry_otlp::MetricExporter::builder()
+            .with_tonic()
+            .with_export_config(ExportConfig::default())
+            .build()?,
+        runtime::Tokio,
+    )
+    .build();
+    let meter_provider = opentelemetry_sdk::metrics::SdkMeterProvider::builder()
+        .with_reader(meter_reader)
+        .build();
+    global::set_meter_provider(meter_provider);
     Ok(())
 }
 

src/metrics.rs

@@ -9,7 +9,7 @@ lazy_static! {
     static ref POLICY_EVALUATION_LATENCY: Histogram<u64> =
         opentelemetry::global::meter(super::METER_NAME)
             .u64_histogram("kubewarden_policy_evaluation_latency_milliseconds")
-            .init();
+            .build();
 }
 
 pub fn record_policy_latency(latency: Duration, policy_evaluation: impl PolicyEvaluationMetric) {

src/metrics/policy_evaluations_latency.rs

@@ -7,7 +7,7 @@ lazy_static! {
     static ref POLICY_EVALUATIONS_TOTAL: Counter<u64> =
         opentelemetry::global::meter(super::METER_NAME)
             .u64_counter("kubewarden_policy_evaluations_total")
-            .init();
+            .build();
 }
 
 pub fn add_policy_evaluation(policy_evaluation: impl PolicyEvaluationMetric) {

src/metrics/policy_evaluations_total.rs

@@ -39,16 +39,22 @@ pub fn setup_tracing(log_level: &str, log_fmt: &str, log_no_color: bool) -> Resu
             // OpenTelemetry collector using the OTLP format.
             // The collector must run on localhost (eg: use a sidecar inside of k8s)
             // using GRPC
-            let tracer_provider = opentelemetry_otlp::new_pipeline()
-                .tracing()
-                .with_exporter(opentelemetry_otlp::new_exporter().tonic())
-                .with_trace_config(opentelemetry_sdk::trace::Config::default().with_resource(
-                    opentelemetry_sdk::Resource::new(vec![opentelemetry::KeyValue::new(
-                        "service.name",
-                        config::SERVICE_NAME,
-                    )]),
-                ))
-                .install_batch(opentelemetry_sdk::runtime::Tokio)?;
+            let otlp_exporter = opentelemetry_otlp::SpanExporter::builder()
+                .with_tonic()
+                .build()?;
+
+            let tracer_config = opentelemetry_sdk::trace::Config::default().with_resource(
+                opentelemetry_sdk::Resource::new(vec![opentelemetry::KeyValue::new(
+                    "service.name",
+                    config::SERVICE_NAME,
+                )]),
+            );
+
+            let tracer_provider = opentelemetry_sdk::trace::TracerProvider::builder()
+                .with_config(tracer_config)
+                .with_batch_exporter(otlp_exporter, opentelemetry_sdk::runtime::Tokio)
+                .build();
+
             let tracer = tracer_provider.tracer(config::SERVICE_NAME);
 
             // Create a tracing layer with the configured tracer