调试在Docker上运行的整个Node.js代码

Question

I've setup Node.js with Docker and everything is working. I configured VS Code so I can do remote debugging and it's also working, but is there a way I can debug code that was executed before the debugger got attached?

For example, in the image below, I can't debug line 3 and 9 because this code is executed when node is started and I can't attach a debugger without any node process running.

Here's my Dockerfile's CMD:

nodemon --inspect=0.0.0.0:9229 src/index.js

Answer 1

You can start your instance and pause on first line with the flag --inspect-brk . https://nodejs.org/api/debugger.html#debugger_v8_inspector_integration_for_node_js

Or you can simply write a debugger statement on your code and it will pause once it reaches the statement line.