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docs: Add notes about NEXT_MANUAL_SIG_HANDLE #43686

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merged 2 commits into from Dec 4, 2022
Merged

docs: Add notes about NEXT_MANUAL_SIG_HANDLE #43686

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docs: Add notes about NEXT_MANUAL_SIG_HANDLE
soonoo Dec 4, 2022
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Merge branch 'canary' into docs/graceful-shutdown
ijjk Dec 4, 2022
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13 changes: 12 additions & 1 deletion docs/deployment.md
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Expand Up @@ -136,7 +136,18 @@ Next.js will automatically load the latest version of your application in the ba

Sometimes you might want to run some cleanup code on process signals like `SIGTERM` or `SIGINT`.

You can do that by setting the env variable `NEXT_MANUAL_SIG_HANDLE` to `true` and then register a handler for that signal inside your `_document.js` file.
You can do that by setting the env variable `NEXT_MANUAL_SIG_HANDLE` to `true` and then register a handler for that signal inside your `_document.js` file. Please note that you need to register env variable directly in the system env variable, not in the `.env` file.

```json
// package.json
{
"scripts": {
"dev": "NEXT_MANUAL_SIG_HANDLE=true next dev",
"build": "next build",
"start": "NEXT_MANUAL_SIG_HANDLE=true next start"
}
}
```

```js
// pages/_document.js
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