feat: add OpenTelemetry metrics implementation (#2899)

Adds a `Metrics` interface implementation that is powered by an OpenTelemetry backend.

It tracks the same metrics as `@libp2p/prometheus-metrics` but also supports the new function tracing added in #2898.

See the readme for a usage example.

Author: achingbrain

.release-please-manifest.json

@@ -1 +1 @@
-{"packages/auto-tls":"1.0.2","packages/config":"1.0.0","packages/connection-encrypter-plaintext":"2.0.12","packages/connection-encrypter-tls":"2.0.12","packages/crypto":"5.0.8","packages/interface":"2.3.0","packages/interface-compliance-tests":"6.2.2","packages/interface-internal":"2.2.1","packages/kad-dht":"14.1.6","packages/keychain":"5.0.11","packages/libp2p":"2.4.2","packages/logger":"5.1.5","packages/metrics-devtools":"1.1.12","packages/metrics-prometheus":"4.2.10","packages/metrics-simple":"1.2.8","packages/multistream-select":"6.0.10","packages/peer-collections":"6.0.13","packages/peer-discovery-bootstrap":"11.0.16","packages/peer-discovery-mdns":"11.0.16","packages/peer-id":"5.0.9","packages/peer-record":"8.0.13","packages/peer-store":"11.0.13","packages/pnet":"2.0.16","packages/protocol-autonat":"2.0.15","packages/protocol-dcutr":"2.0.14","packages/protocol-echo":"2.1.5","packages/protocol-fetch":"2.0.14","packages/protocol-identify":"3.0.14","packages/protocol-perf":"4.0.16","packages/protocol-ping":"2.0.14","packages/pubsub":"10.0.14","packages/pubsub-floodsub":"10.1.14","packages/record":"4.0.4","packages/stream-multiplexer-mplex":"11.0.16","packages/transport-circuit-relay-v2":"3.1.6","packages/transport-memory":"1.0.2","packages/transport-tcp":"10.0.14","packages/transport-webrtc":"5.0.22","packages/transport-websockets":"9.1.1","packages/transport-webtransport":"5.0.21","packages/upnp-nat":"3.0.3","packages/utils":"6.3.0"}
+{"packages/auto-tls":"1.0.2","packages/config":"1.0.0","packages/connection-encrypter-plaintext":"2.0.12","packages/connection-encrypter-tls":"2.0.12","packages/crypto":"5.0.8","packages/interface":"2.3.0","packages/interface-compliance-tests":"6.2.2","packages/interface-internal":"2.2.1","packages/kad-dht":"14.1.6","packages/keychain":"5.0.11","packages/libp2p":"2.4.2","packages/logger":"5.1.5","packages/metrics-devtools":"1.1.12","packages/metrics-opentelemetry":"0.0.0","packages/metrics-prometheus":"4.2.10","packages/metrics-simple":"1.2.8","packages/multistream-select":"6.0.10","packages/peer-collections":"6.0.13","packages/peer-discovery-bootstrap":"11.0.16","packages/peer-discovery-mdns":"11.0.16","packages/peer-id":"5.0.9","packages/peer-record":"8.0.13","packages/peer-store":"11.0.13","packages/pnet":"2.0.16","packages/protocol-autonat":"2.0.15","packages/protocol-dcutr":"2.0.14","packages/protocol-echo":"2.1.5","packages/protocol-fetch":"2.0.14","packages/protocol-identify":"3.0.14","packages/protocol-perf":"4.0.16","packages/protocol-ping":"2.0.14","packages/pubsub":"10.0.14","packages/pubsub-floodsub":"10.1.14","packages/record":"4.0.4","packages/stream-multiplexer-mplex":"11.0.16","packages/transport-circuit-relay-v2":"3.1.6","packages/transport-memory":"1.0.2","packages/transport-tcp":"10.0.14","packages/transport-webrtc":"5.0.22","packages/transport-websockets":"9.1.1","packages/transport-webtransport":"5.0.21","packages/upnp-nat":"3.0.3","packages/utils":"6.3.0"}

.release-please.json

@@ -22,6 +22,7 @@
     "packages/libp2p": {},
     "packages/logger": {},
     "packages/metrics-devtools": {},
+    "packages/metrics-opentelemetry": {},
     "packages/metrics-prometheus": {},
     "packages/metrics-simple": {},
     "packages/multistream-select": {},

packages/metrics-opentelemetry/CODE_OF_CONDUCT.md

@@ -0,0 +1,3 @@
+# Contributor Code of Conduct
+
+This project follows the [`IPFS Community Code of Conduct`](https://github.com/ipfs/community/blob/master/code-of-conduct.md)

packages/metrics-opentelemetry/LICENSE-APACHE

@@ -0,0 +1,201 @@
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packages/metrics-opentelemetry/LICENSE-MIT

@@ -0,0 +1,19 @@
+The MIT License (MIT)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

packages/metrics-opentelemetry/README.md

@@ -0,0 +1,77 @@
+# @libp2p/opentelemetry-metrics
+
+[![libp2p.io](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
+[![Discuss](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg?style=flat-square)](https://discuss.libp2p.io)
+[![codecov](https://img.shields.io/codecov/c/github/libp2p/js-libp2p.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p)
+[![CI](https://img.shields.io/github/actions/workflow/status/libp2p/js-libp2p/main.yml?branch=main\&style=flat-square)](https://github.com/libp2p/js-libp2p/actions/workflows/main.yml?query=branch%3Amain)
+
+> Opentelemetry metrics gathering for libp2p
+
+# About
+
+<!--
+
+!IMPORTANT!
+
+Everything in this README between "# About" and "# Install" is automatically
+generated and will be overwritten the next time the doc generator is run.
+
+To make changes to this section, please update the @packageDocumentation section
+of src/index.js or src/index.ts
+
+To experiment with formatting, please run "npm run docs" from the root of this
+repo and examine the changes made.
+
+-->
+
+Uses [OpenTelemetry](https://opentelemetry.io/) to store metrics and method
+traces in libp2p.
+
+## Example - Node.js
+
+Use with [OpenTelemetry Desktop Viewer](https://github.com/CtrlSpice/otel-desktop-viewer):
+
+```ts
+import { createLibp2p } from 'libp2p'
+import { openTelemetryMetrics } from '@libp2p/opentelemetry-metrics'
+import { PrometheusExporter } from '@opentelemetry/exporter-prometheus'
+import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http'
+import { NodeSDK } from '@opentelemetry/sdk-node'
+
+const sdk = new NodeSDK({
+  traceExporter: new OTLPTraceExporter({
+    url: 'http://127.0.0.1:4318/v1/traces'
+  }),
+  metricReader: new PrometheusExporter({
+    port: 9464
+  }),
+  serviceName: 'my-app'
+})
+sdk.start()
+
+const node = await createLibp2p({
+  // ... other options
+  metrics: openTelemetryMetrics()
+})
+```
+
+# Install
+
+```console
+$ npm i @libp2p/opentelemetry-metrics
+```
+
+# API Docs
+
+- <https://libp2p.github.io/js-libp2p/modules/_libp2p_opentelemetry_metrics.html>
+
+# License
+
+Licensed under either of
+
+- Apache 2.0, ([LICENSE-APACHE](https://github.com/libp2p/js-libp2p/blob/main/packages/metrics-opentelemetry/LICENSE-APACHE) / <http://www.apache.org/licenses/LICENSE-2.0>)
+- MIT ([LICENSE-MIT](https://github.com/libp2p/js-libp2p/blob/main/packages/metrics-opentelemetry/LICENSE-MIT) / <http://opensource.org/licenses/MIT>)
+
+# Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

packages/metrics-opentelemetry/package.json

@@ -0,0 +1,62 @@
+{
+  "name": "@libp2p/opentelemetry-metrics",
+  "version": "0.0.0",
+  "description": "Opentelemetry metrics gathering for libp2p",
+  "license": "Apache-2.0 OR MIT",
+  "homepage": "https://github.com/libp2p/js-libp2p/tree/main/packages/metrics-opentelemetry#readme",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/libp2p/js-libp2p.git"
+  },
+  "bugs": {
+    "url": "https://github.com/libp2p/js-libp2p/issues"
+  },
+  "publishConfig": {
+    "access": "public",
+    "provenance": true
+  },
+  "type": "module",
+  "types": "./dist/src/index.d.ts",
+  "files": [
+    "src",
+    "dist",
+    "!dist/test",
+    "!**/*.tsbuildinfo"
+  ],
+  "exports": {
+    ".": {
+      "types": "./dist/src/index.d.ts",
+      "import": "./dist/src/index.js"
+    }
+  },
+  "eslintConfig": {
+    "extends": "ipfs",
+    "parserOptions": {
+      "project": true,
+      "sourceType": "module"
+    }
+  },
+  "scripts": {
+    "clean": "aegir clean",
+    "lint": "aegir lint",
+    "dep-check": "aegir dep-check",
+    "doc-check": "aegir doc-check",
+    "build": "aegir build",
+    "test": "aegir test",
+    "test:node": "aegir test -t node --cov",
+    "test:electron-main": "aegir test -t electron-main"
+  },
+  "dependencies": {
+    "@libp2p/interface": "^2.3.0",
+    "@opentelemetry/api": "^1.9.0",
+    "it-foreach": "^2.1.1",
+    "it-stream-types": "^2.0.2"
+  },
+  "devDependencies": {
+    "aegir": "^45.0.5"
+  },
+  "browser": {
+    "./dist/src/system-metrics.js": "./dist/src/system-metrics.browser.js"
+  },
+  "sideEffects": false
+}