Merge pull request 'otel: revert HTTP transport, keep gRPC' (#78) from fix/otlp-revert-to-grpc into master

Reviewed-on: #78

Cargo.lock

@@ -1826,6 +1826,19 @@ dependencies = [
  "tower-service",
 ]
 
+[[package]]
+name = "hyper-timeout"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b90d566bffbce6a75bd8b09a05aa8c2cb1fabb6cb348f8840c9e4c90a0d83b0"
+dependencies = [
+ "hyper",
+ "hyper-util",
+ "pin-project-lite",
+ "tokio",
+ "tower-service",
+]
+
 [[package]]
 name = "hyper-tls"
 version = "0.6.0"
@@ -2732,6 +2745,9 @@ dependencies = [
  "prost",
  "reqwest",
  "thiserror 2.0.18",
+ "tokio",
+ "tonic",
+ "tracing",
 ]
 
 [[package]]
@@ -3377,6 +3393,7 @@ dependencies = [
  "base64",
  "bytes",
  "encoding_rs",
+ "futures-channel",
  "futures-core",
  "futures-util",
  "h2 0.4.14",
@@ -4162,10 +4179,15 @@ dependencies = [
  "http 1.4.0",
  "http-body",
  "http-body-util",
+ "hyper",
+ "hyper-timeout",
+ "hyper-util",
  "percent-encoding",
  "pin-project",
  "sync_wrapper",
+ "tokio",
  "tokio-stream",
+ "tower",
  "tower-layer",
  "tower-service",
  "tracing",
@@ -4190,11 +4212,15 @@ checksum = "ebe5ef63511595f1344e2d5cfa636d973292adc0eec1f0ad45fae9f0851ab1d4"
 dependencies = [
  "futures-core",
  "futures-util",
+ "indexmap",
  "pin-project-lite",
+ "slab",
  "sync_wrapper",
  "tokio",
+ "tokio-util",
  "tower-layer",
  "tower-service",
+ "tracing",
 ]
 
 [[package]]

Cargo.toml

@@ -44,9 +44,9 @@ prometheus = "0.13"
 lazy_static = "1.5"
 anyhow = "1.0"
 rand = "0.8.5"
-opentelemetry = { version = "0.31.0", features = ["metrics", "trace"] }
+opentelemetry = { version = "0.31.0", features = ["default", "metrics", "tracing"] }
-opentelemetry_sdk = { version = "0.31.0", features = ["rt-tokio-current-thread", "metrics", "logs"] }
+opentelemetry_sdk = { version = "0.31.0", features = ["default", "rt-tokio-current-thread", "metrics"] }
-opentelemetry-otlp = { version = "0.31.0", default-features = false, features = ["trace", "metrics", "logs", "http-proto", "reqwest-client"] }
+opentelemetry-otlp = { version = "0.31.0", features = ["default", "metrics", "tracing", "grpc-tonic"] }
 opentelemetry-stdout = "0.31.0"
 opentelemetry-appender-log = "0.31.0"
 tempfile = "3.20.0"

src/otel.rs

@@ -24,7 +24,7 @@ pub fn init_tracing() {
         .build();
 
     let span_exporter = opentelemetry_otlp::SpanExporter::builder()
-        .with_http()
+        .with_tonic()
         .with_endpoint(std::env::var("OTLP_OTLS_ENDPOINT").unwrap())
         .build()
         .unwrap();
@@ -40,7 +40,7 @@ pub fn init_tracing() {
 #[allow(dead_code)]
 pub fn init_logs() {
     let otlp_exporter = opentelemetry_otlp::LogExporter::builder()
-        .with_http()
+        .with_tonic()
         .with_endpoint(std::env::var("OTLP_OTLS_ENDPOINT").unwrap())
         .build()
         .unwrap();