fix: otel resiliency (#26857)

Improving the breadth of collected data, and ensuring that the collected
data is more likely to be successfully reported.

- Use `log` crate in more places
- Hook up `log` crate to otel
- Switch to process-wide otel processors
- Handle places that use `process::exit`

Also adds a more robust testing framework, with a deterministic tracing
setting.

Refs: https://github.com/denoland/deno/issues/26852

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/specs/cli/otel_basic/basic.ts b/tests/specs/cli/otel_basic/basic.ts
new file mode 100644
index 000000000..5a178794a
--- /dev/null
+++ b/tests/specs/cli/otel_basic/basic.ts
@@ -0,0 +1,24 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+async function inner() {
+  using _span = new Deno.tracing.Span("inner span");
+  console.log("log 1");
+  await 1;
+  console.log("log 2");
+}
+
+const server = Deno.serve({
+  port: 0,
+  async onListen({ port }) {
+    try {
+      await fetch(`http://localhost:${port}`);
+    } finally {
+      server.shutdown();
+    }
+  },
+  handler: async (_req) => {
+    using _span = new Deno.tracing.Span("outer span");
+    await inner();
+    return new Response(null, { status: 200 });
+  },
+});