How to solve “ptrace operation not permitted” when trying to attach GDB to a process?

Question

I\'m trying to attach a program with gdb but it returns:

Attaching to process 29139
Could not attach to process. If your uid matches the ui

Answer 1

If you are using Docker, you will probably need these options:

docker run --cap-add=SYS_PTRACE --security-opt seccomp=unconfined