Docker logging

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Docker support logging to format or different platforms, such as, json-file, syslog, journald, gelf, fluentd, awslogs, splunk, etwlogs, gcplogs and logentries.[1]

  • Configuration is done at docker container start time with command docker run -it --log-drive LOG_METHOD CONTAINER_ID
  • Check method configured in a running container:
docker inspect -f '{{.HostConfig.LogConfig.Type}}' CONTAINER_ID
docker inspect -f '{{.HostConfig.LogConfig}}' CONTAINER_ID
docker logs CONTAINER_NAME_OR_ID (Docker Community Engine only support: local, json-file and journald)
docker logs CONTAINER_NAME_OR_ID 2>&1 | grep "STRING_TO_SEARCH" (You will need to redirect outputs to be able to grep output)[2]
See https://docs.docker.com/config/containers/logging/ for more information


See also

  • https://docs.docker.com/config/containers/logging/configure/
  • https://stackoverflow.com/questions/34724980/finding-a-string-in-docker-logs-of-container
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