Service Logs

• Same as docker container logs, but aggregates all service tasks

• Can return all tasks at once, or just one task's logs

• Great for real time cli troubleshooting

• Has options for follow/tail, and other common log options

• Not for log storage, or searching, or feeding into other systems

• Doesn't work if you use --log-driver for sending logs off server

• Therefore: use for small Swarms and testing

Examples

• Return all logs for a service

  • docker service logs <servicename/id>

• Return all logs for a single task

  • docker service logs <taskid>

• Return unformatted logs with no trunking

  • docker service logs --raw --no-trunc <servicename/id>

• Only return last 50 log entries and all future logs

  • docker service logs --tail 50 --follow <servicename/id>

• Search in logs (both stdout and stderr)

  • docker service logs <servicename> 2>&1 | grep <search string>

  • docker service logs <servicename> 2>&1 | findstr <search string>