找到pidfile的位置 windows的docker | docker.pid

Question

I would like to have docker inside docker for use CI-agent. But for it I need to share docker.pid file inside docker container and I can't find that file in this path C:\\ProgramData\\docker.pid and even I try to add this in docker daemon config:

{
...
  "pidfile": "C:\\docker.pid",
...
}

And after a restart, that file didn't appear. Could you please help me?

Also tried different variant in config file like "C:\\docker.pid" , "C:/docker.pid" . The same behavior. The docker logs is clean about creating or removing docker.pid file.

Software info

Windows Version: 10 1809 build 17763

Docker for Windows Version: 2.0.0.2 31259

Expected behavior

Create pid file in path C:\\docker.pid

Actual behavior

The file is absent

---

Also created an issue in github https://github.com/docker/for-win/issues/3741

Answer 1

I found a way to run Docker inside docker. These two topics help me:

https://forums.docker.com/t/solved-using-docker-inside-another-container/12222/3

Bind to docker socket on Windows

I needed docker.sock file and it locate //var/run/docker.sock so

-v //var/run/docker.sock:/var/run/docker.sock

resolve my problem.