Add telemetry

This is an experimental feature.

To try it:

```sh
docker run  -p4317:4317 -p16686:16686 jaegertracing/all-in-one
```

and run Icechunk setting an env variable such as

```sh
ICECHUNK_TELEMETRY_ENDPOINT=http://localhost:431
```

Then navigate to `http://192.168.122.213:16686/`

Author: paraseba

Cargo.lock

@@ -25,6 +25,7 @@ use conflicts::{
     PyConflictType, PyVersionSelection,
 };
 use errors::{IcechunkError, PyConflictError, PyRebaseFailedError};
+use icechunk::TelemetryConfig;
 use icechunk::{format::format_constants::SpecVersionBin, initialize_tracing};
 use pyo3::prelude::*;
 use pyo3::wrap_pyfunction;
@@ -72,7 +73,13 @@ fn cli_entrypoint(_py: Python) -> PyResult<()> {
 #[pyfunction]
 fn initialize_logs() -> PyResult<()> {
     if env::var("ICECHUNK_NO_LOGS").is_err() {
-        initialize_tracing()
+        let logs_config = Default::default();
+        let telemetry = env::var("ICECHUNK_TELEMETRY_ENDPOINT")
+            .map(|endpoint| TelemetryConfig { endpoint, ..Default::default() })
+            .ok();
+        pyo3_async_runtimes::tokio::get_runtime().block_on(async move {
+            initialize_tracing(Some(&logs_config), telemetry.as_ref()).await;
+        });
     }
     Ok(())
 }

icechunk-python/src/lib.rs

@@ -63,6 +63,14 @@ dirs = { version = "6.0.0", optional = true }
 assert_fs = { version = "1.1.3", optional = true }
 flatbuffers = "25.2.10"
 
+opentelemetry = { version = "0.29.0", optional = true }
+opentelemetry_sdk = { version = "0.29.0", optional = true }
+tracing-opentelemetry = { version = "0.30.0", optional = true }
+opentelemetry-otlp = { version = "0.29.0", features = [
+  "grpc-tonic",
+  "tonic",
+], optional = true }
+
 [dev-dependencies]
 icechunk-macros = { path = "../icechunk-macros", version = "0.1.0" }
 pretty_assertions = "1.4.1"
@@ -78,7 +86,13 @@ test-log = { version = "0.2.17", default-features = false, features = [
 workspace = true
 
 [features]
-logs = ["dep:tracing-subscriber"]
+logs = [
+  "dep:tracing-subscriber",
+  "dep:opentelemetry",
+  "dep:opentelemetry_sdk",
+  "dep:opentelemetry-otlp",
+  "dep:tracing-opentelemetry",
+]
 cli = ["dep:clap", "dep:anyhow", "dep:dialoguer", "dep:dirs", "dep:assert_fs"]
 
 [[bin]]

icechunk/Cargo.toml

@@ -583,3 +583,26 @@ pub enum Credentials {
     Gcs(GcsCredentials),
     Azure(AzureCredentials),
 }
+
+#[derive(Clone, Debug)]
+pub struct TelemetryConfig {
+    pub endpoint: String,
+    pub tracer_name: String,
+}
+
+impl Default for TelemetryConfig {
+    fn default() -> Self {
+        Self { endpoint: "localhost".to_string(), tracer_name: "icechunk".to_string() }
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct LogsConfig {
+    pub env_var_name: String,
+}
+
+impl Default for LogsConfig {
+    fn default() -> Self {
+        Self { env_var_name: "ICECHUNK_LOG".to_string() }
+    }
+}