Where is the Docker JSON file logging driver writing files to?

Question

I have Dockerized a sample app and have configured it to log to STDOUT. I then run the container without specifying a logging-driver. According to the Docker docs, STDOUT should be collected out of the container and into a JSON file...

But nowhere in the logging docs do they tell you where you can find this JSON file!!!

Any ideas how I could find this file on my host and inspect its contents?

Answer 1

docker inspect is your friend to figure out details regarding a container. With this you can get the log path by running following command:

$ docker inspect --format='{{.LogPath}}' NAME|ID

For example:

$ docker inspect --format='{{.LogPath}}' 2de7566c47eb

Hope it helps.