Add missing otel.rs

src/otel.rs

@@ -0,0 +1,61 @@
+use opentelemetry::global::BoxedTracer;
+use opentelemetry::{global, KeyValue};
+use opentelemetry_appender_log::OpenTelemetryLogBridge;
+use opentelemetry_otlp::WithExportConfig;
+use opentelemetry_sdk::logs::{BatchLogProcessor, SdkLoggerProvider};
+use opentelemetry_sdk::Resource;
+
+pub fn global_tracer() -> BoxedTracer {
+    global::tracer("image-server")
+}
+
+pub fn init_tracing() {
+    let resources = Resource::builder()
+        .with_attributes([
+            KeyValue::new("service.name", "image-server"),
+            //TODO: Get this from somewhere
+            KeyValue::new("service.version", "1.0"),
+        ])
+        .build();
+
+    let span_exporter = opentelemetry_otlp::SpanExporter::builder()
+        .with_tonic()
+        .with_endpoint(std::env::var("OTLP_OTLS_ENDPOINT").unwrap())
+        .build()
+        .unwrap();
+
+    let tracer_provider = opentelemetry_sdk::trace::SdkTracerProvider::builder()
+        .with_batch_exporter(span_exporter)
+        .with_resource(resources)
+        .build();
+
+    global::set_tracer_provider(tracer_provider);
+}
+
+pub fn init_logs() {
+    let otlp_exporter = opentelemetry_otlp::LogExporter::builder()
+        .with_tonic()
+        .with_endpoint(std::env::var("OTLP_OTLS_ENDPOINT").unwrap())
+        .build()
+        .unwrap();
+
+    let exporter = opentelemetry_stdout::LogExporter::default();
+
+    let resources = Resource::builder()
+        .with_attributes([
+            KeyValue::new("service.name", "image-server"),
+            KeyValue::new("service.version", "1.0"),
+        ])
+        .build();
+
+    let log_provider = SdkLoggerProvider::builder()
+        .with_log_processor(BatchLogProcessor::builder(exporter).build())
+        .with_log_processor(BatchLogProcessor::builder(otlp_exporter).build())
+        .with_resource(resources)
+        .build();
+
+    let otel_log_appender = OpenTelemetryLogBridge::new(&log_provider);
+    log::set_boxed_logger(Box::new(otel_log_appender)).expect("Unable to set boxed logger");
+    //TODO: Still set this with the env? Ideally we still have a clean/simple local logger for local dev
+    log::set_max_level(log::LevelFilter::Info);
+}