68 lines
3.2 KiB
Markdown
68 lines
3.2 KiB
Markdown
# OpenTelemetry DNS Instrumentation for Node.js
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[![NPM Published Version][npm-img]][npm-url]
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[![Apache License][license-image]][license-image]
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This module provides automatic instrumentation for the [`dns`](http://nodejs.org/dist/latest/docs/api/dns.html) module, which may be loaded using the [`@opentelemetry/sdk-trace-node`](https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/opentelemetry-sdk-trace-node) package and is included in the [`@opentelemetry/auto-instrumentations-node`](https://www.npmjs.com/package/@opentelemetry/auto-instrumentations-node) bundle.
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If total installation size is not constrained, it is recommended to use the [`@opentelemetry/auto-instrumentations-node`](https://www.npmjs.com/package/@opentelemetry/auto-instrumentations-node) bundle with [@opentelemetry/sdk-node](`https://www.npmjs.com/package/@opentelemetry/sdk-node`) for the most seamless instrumentation experience.
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## Status
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| Maturity | [Component Owner](../../../.github/component_owners.yml) | Compatibility |
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| ----------------------------------------------------- | -------------------------------------------------------- | --------------------- |
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| [Unmaintained](../../../CONTRIBUTING.md#unmaintained) | N/A | API 1.0+<br/>SDK 1.0+ |
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## Installation
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```bash
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npm install --save @opentelemetry/instrumentation-dns
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```
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## Usage
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```js
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const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
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const { DnsInstrumentation } = require('@opentelemetry/instrumentation-dns');
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const { registerInstrumentations } = require('@opentelemetry/instrumentation');
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const provider = new NodeTracerProvider();
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provider.register();
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registerInstrumentations({
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instrumentations: [
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new DnsInstrumentation({
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// see under for available configuration
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}),
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],
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});
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```
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### DNS Instrumentation Options
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DNS instrumentation has currently one option. You can set the following:
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| Options | Type | Description |
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| ------- | ---- | ----------- |
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| [`ignoreHostnames`](https://github.com/open-telemetry/opentelemetry-js-contrib/blob/main/plugins/node/opentelemetry-instrumentation-dns/src/types.ts#L99) | `IgnoreMatcher \| IgnoreMatcher[]` | DNS instrumentation will not trace all requests that match hostnames |
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## Semantic Conventions
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This package does not currently generate any attributes from semantic conventions.
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## Useful links
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- For more information on OpenTelemetry, visit: <https://opentelemetry.io/>
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- For more about OpenTelemetry JavaScript: <https://github.com/open-telemetry/opentelemetry-js>
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- For help or feedback on this project, join us in [GitHub Discussions][discussions-url]
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## License
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Apache 2.0 - See [LICENSE][license-url] for more information.
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[discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
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[license-url]: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/main/LICENSE
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[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
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[npm-url]: https://www.npmjs.com/package/@opentelemetry/instrumentation-dns
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[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Finstrumentation-dns.svg
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