Debugging NextJS in docker container
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Berger Picard posted this in #help-forum
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Berger PicardOP
I'm basically having the exact problem mentioned here -> https://github.com/vercel/next.js/discussions/45936
I have a nextjs app running in a docker container but I cannot get the debugger to attach when using VSCode or Chrome Dev tools. When using
NextJS 15.0.0
package.json:
docker-compose:
launch.json:
Logs:
I have a nextjs app running in a docker container but I cannot get the debugger to attach when using VSCode or Chrome Dev tools. When using
---inspect
the debugger won't connect, and when using NODE_OPTIONS=--inspect=0.0.0.0:9229
the debugger will connect but won't stop at breakpoints. In either case I get the same error message in logs below:NextJS 15.0.0
package.json:
"dev": "NODE_OPTIONS='--inspect' next dev",
docker-compose:
ex_web:
...
entrypoint: npm run dev
ports:
- 3000:3000
- 9229:9229
expose:
- 9229
volumes:
- .:/app
launch.json:
{
"type": "node",
"request": "attach",
"name": "Docker: Attach to Node",
"remoteRoot": "/app/",
"address": "localhost",
"localRoot": "${workspaceFolder}",
"port": 9229,
"sourceMaps": true,
}
Logs:
Debugger listening on ws://0.0.0.0:9229/3ed8ecb5-4b4f-44fd-968d-f11acec86c41
For help, see: https://nodejs.org/en/docs/inspector
Starting inspector on 0.0.0.0:9229 failed: address already in use
the --inspect option was detected, the Next.js router server should be inspected at port 9229.