Docker Tutorials: Where is the Docker daemon log

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

• Ubuntu – /var/log/upstart/docker.log
• Boot2Docker – /var/log/docker.log
• Debian GNU/Linux – /var/log/daemon.log
• CentOS – /var/log/daemon.log | 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

Note

• Centos7 seems to log to /var/log/messages
• On an Amazon Linux instance running their Elastic Container Service it’s /var/log/docker
• systemd has its own logging system called the journal. The logs for the docker daemon can be viewed using $ journalctl -u docker

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