chore(apple): start telemetry together with connlib session (#7152)

This starts up telemetry together with each `connlib` session. At a
later point, we can also integrate the native Swift SDK into the MacOS /
iOS app to catch non-connlib specific problems.

---------

Signed-off-by: Thomas Eizinger <thomas@eizinger.io>

rust/Cargo.lock

@@ -1080,6 +1080,7 @@ dependencies = [
  "connlib-client-shared",
  "connlib-model",
  "firezone-logging",
+ "firezone-telemetry",
  "ip_network",
  "libc",
  "oslog",

rust/connlib/clients/apple/Cargo.toml

@@ -13,6 +13,7 @@ backoff = "0.4.0"
 connlib-client-shared = { workspace = true }
 connlib-model = { workspace = true }
 firezone-logging = { workspace = true }
+firezone-telemetry = { workspace = true }
 ip_network = "0.4"
 libc = "0.2"
 phoenix-channel = { workspace = true }

rust/connlib/clients/apple/src/lib.rs

@@ -8,6 +8,8 @@ use anyhow::Result;
 use backoff::ExponentialBackoffBuilder;
 use connlib_client_shared::{Callbacks, DisconnectError, Session, V4RouteList, V6RouteList};
 use connlib_model::ResourceView;
+use firezone_telemetry::Telemetry;
+use firezone_telemetry::APPLE_DSN;
 use ip_network::{Ipv4Network, Ipv6Network};
 use phoenix_channel::get_user_agent;
 use phoenix_channel::LoginUrl;
@@ -102,6 +104,8 @@ pub struct WrappedSession {
         reason = "Logger handle must be kept alive until Session is dropped"
     )]
     logger: firezone_logging::file::Handle,
+
+    telemetry: Telemetry,
 }
 
 // SAFETY: `CallbackHandler.swift` promises to be thread-safe.
@@ -193,6 +197,9 @@ impl WrappedSession {
         callback_handler: ffi::CallbackHandler,
         device_info: String,
     ) -> Result<Self> {
+        let telemetry = Telemetry::default();
+        telemetry.start(&api_url, env!("CARGO_PKG_VERSION"), APPLE_DSN);
+
         let logger = init_logging(log_dir.into(), log_filter)?;
         install_rustls_crypto_provider();
 
@@ -239,6 +246,7 @@ impl WrappedSession {
             inner: session,
             runtime,
             logger,
+            telemetry,
         })
     }
 
@@ -257,7 +265,8 @@ impl WrappedSession {
     }
 
     fn disconnect(self) {
-        self.inner.disconnect()
+        self.inner.disconnect();
+        self.telemetry.stop();
     }
 }
 

rust/telemetry/src/lib.rs

@@ -15,6 +15,7 @@ pub struct Dsn(&'static str);
 // > DSNs are safe to keep public because they only allow submission of new events and related event data; they do not allow read access to any information.
 // <https://docs.sentry.io/concepts/key-terms/dsn-explainer/#dsn-utilization>
 
+pub const APPLE_DSN: Dsn = Dsn("https://66c71f83675f01abfffa8eb977bcbbf7@o4507971108339712.ingest.us.sentry.io/4508175177023488");
 pub const GATEWAY_DSN: Dsn = Dsn("https://f763102cc3937199ec483fbdae63dfdc@o4507971108339712.ingest.us.sentry.io/4508162914451456");
 pub const GUI_DSN: Dsn = Dsn("https://2e17bf5ed24a78c0ac9e84a5de2bd6fc@o4507971108339712.ingest.us.sentry.io/4508008945549312");
 pub const HEADLESS_DSN: Dsn = Dsn("https://bc27dca8bb37be0142c48c4f89647c13@o4507971108339712.ingest.us.sentry.io/4508010028728320");

website/src/components/Changelog/Apple.tsx

@@ -13,6 +13,9 @@ export default function Apple() {
       {/* When you cut a release, remove any solved issues from the "known issues" lists over in `client-apps`. This must not be done when the issue's PR merges. */}
       <Unreleased>
         <ChangeItem>Handles DNS queries over TCP correctly.</ChangeItem>
+        <ChangeItem pull="7152">
+          Adds always-on error reporting using sentry.io.
+        </ChangeItem>
       </Unreleased>
       <Entry version="1.3.6" date={new Date("2024-10-02")}>
         <ChangeItem pull="6831">