Where is the Docker daemon log?

logging docker
user2603634 picture user2603634 · Jun 21, 2015 · Viewed 301.7k times · Source

Where is the Docker daemon log? Oddly cannot find an answer to this via man, StackOverflow or Docker Docs. Note I am not asking for the docker container STDOUT, but the daemon log for troubleshooting communications between the client and container via daemon / proxy.

Answer

Sabin picture Sabin · Jun 22, 2015

It depends on your OS. Here are the few locations, with commands for few Operating Systems:

  • Ubuntu (old using upstart ) - /var/log/upstart/docker.log
  • Ubuntu (new using systemd ) - sudo journalctl -fu docker.service
  • Amazon Linux AMI - /var/log/docker
  • Boot2Docker - /var/log/docker.log
  • Debian GNU/Linux - /var/log/daemon.log
  • CentOS - /var/log/message | grep docker
  • CoreOS - journalctl -u docker.service
  • Fedora - journalctl -u docker.service
  • Red Hat Enterprise Linux Server - /var/log/messages | grep docker
  • OpenSuSE - journalctl -u docker.service
  • OSX - ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/log/d‌​ocker.log
  • Windows - Get-EventLog -LogName Application -Source Docker -After (Get-Date).AddMinutes(-5) | Sort-Object Time, as mentioned here.

Related questions

How to redirect docker container logs to a single file?

I want to redirect all the logs of my docker container to single log file to analyse them. I tried docker logs container > /tmp/stdout.log 2>/tmp/stderr.log but this gives log in two different file. I …

Read More
Redirecting command output in docker

I want to do some simple logging for my server which is a small Flask app running in a Docker container. Here is the Dockerfile # Dockerfile FROM dreen/flask MAINTAINER dreen WORKDIR /srv # Get source RUN mkdir -p /srv COPY …

Read More
Docker container logs taking all my disk space

I am running a container on a VM. My container is writing logs by default to /var/lib/docker/containers/CONTAINER_ID/CONTAINER_ID-json.log file until the disk is full. Currently, I have to delete manually this file to …

Read More