How to access the Docker log file from WITHIN the container?

[siddjain]

How can I access the Docker log file from INSIDE the container? Why do I need this? Because I am running Wordpress in a Docker container and want to direct debug messages to the Docker log instead of the wp-content/error.log file. Refer:

Debugging in WordPress

So I need the path of the Docker log file that I can then enter in:

define( 'WP_DEBUG_LOG', '/tmp/wp-errors.log' );

This link:

Docker logs inside the docker container?

Hi, I am trying to find the logs that when you type “docker logs containername” outputs. I am trying to find it from inside the container itself. I.e. “docker exec -it containername bash”. I have tried “docker inspect --format=’{{.LogPath}}’ containerid” and it prints “/var/lib/docker/containers/containerid-json.log”, when I exec into the container and cd to “var/lib/docker” it says the file directory doesn’t exist? The logs I believed were in stdout, however, I can’t seem to read them. I put …

seems to suggest this is not possible. Is that really so? How do applications then write to Docker log in the first place?

[pavelshalahai]

Find ID of the necessary container via - docker ps
Get inside your container via - docker exec -it YourContainerIdHere sh
Find necessary process via - ps aux
Execute - cat /proc/<PIDofYourProcess>/fd/1