To use the journald driver as the default logging driver, set the log-driver and log-opt keys to appropriate values in the daemon.json file, which is located in /etc/docker/ on Linux hosts or C: ProgramData docker config daemon.json on Windows Server. I Run the system using Docker on the central RSyslog server which all the other servers point thier syslogs to. I’m running Ubuntu 18.04 A useful point of note: If you c h ose to install docker during the OS install, it gets installed using Snap, and I ha permissions issues with this, so used snap remove to get rid of it an deploy docker-ce.
- What Does The Docker Daemon Log Contain? - Loggly
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- Collecting Docker Infrastructure Logs Using Syslog-ng - Blog ...
Scenario
You have Docker installed and want to send your Docker logs (default is json-file) to a local syslog facility (i.e. local6).
You can use the --log-driver=VALUE with the docker run command to configure the container’s logging driver or you can set the parameter globally in the docker daemon configuration file. This is useful when using container orchestration such as Kubernetes or Apache Mesos.
Step #1
What Does The Docker Daemon Log Contain? - Loggly
Edit the docker configuration file (/etc/sysconfig/docker on RHEL/CentOS based systems).
Add the log driver parameter (--log-driver=syslog --log-opt syslog-facility=local6 --log-level=warn) to the OPTIONS line.
Restart the docker daemon.
Step #2
Configure the syslog daemon to listen on local6 and write logs to specified location.
Create a new file in /etc/rsyslog.d called docker.conf.
Add the following line to the /etc/rsyslog.d/docker.conf file.
Make sure that /var/log/docker exists.
Restart the rsyslog daemon
GNS3 Talks: Networker Toolkit Docker Appliance: Easy WWW, FTP, TFTP, Syslog, DHCP Server! Part 1
Start a Docker container or two. You will be now able to view all Docker logs in /var/log/docker/docker.log.
Collecting Docker Infrastructure Logs Using Syslog-ng - Blog ...
For additional information on configuring Docker's logging drivers, please visit https://docs.docker.com/engine/admin/logging/overview.