Difference between revisions of "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.<ref>https://docs.docker.com/config/containers/logging/configure/</ref>
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Docker support logging to format or different platforms, such as <ref>https://docs.docker.com/config/containers/logging/configure/</ref>
* Configuration is done at docker container start time with command <code>docker run -it --log-drive LOG_METHOD CONTAINER_ID</code>
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* <code>[[json-file]]</code> (default)
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* <code>[[syslog]]</code>
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* <code>[[journald]]</code>
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* <code>[[gelf]]</code>
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* <code>[[fluentd]]</code>
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* <code>[[awslogs]]</code>
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* <code>[[splunk]]</code>
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* <code>[[etwlogs]]</code>
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* <code>[[gcplogs]]</code>
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* <code>[[logentries]]</code> <ref>https://docs.docker.com/config/containers/logging/configure/</ref>
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Configuration is done at docker container start time with command <code>docker run -it --log-drive LOG_METHOD CONTAINER_ID</code>
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Sending logs to [[syslog]] or [[logstash]]
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docker run --log-driver=syslog --log-opt syslog-address=tcp://<logstash-system-ip>:5000 hello-world
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* Check method configured in a running container:
 
* Check method configured in a running container:
** <code>docker inspect -f '{{.HostConfig.LogConfig.Type}}' CONTAINER_ID</code>
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<pre>
** <code>docker inspect -f '{{.HostConfig.LogConfig}}' CONTAINER_ID</code>
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docker inspect -f '{{.HostConfig.LogConfig.Type}}' CONTAINER_ID
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docker inspect -f '{{.HostConfig.LogConfig}}' CONTAINER_ID
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docker inspect <container_id|container_name> | grep -A 5 LogConfig
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"LogConfig": {
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  "Type": "syslog"
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  "Config": {}
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}
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</pre>
 
* View [[logs]]
 
* View [[logs]]
 
:<code>[[docker logs]] CONTAINER_NAME_OR_ID</code> (Docker Community Engine only support: local, json-file and [[journald]])
 
:<code>[[docker logs]] CONTAINER_NAME_OR_ID</code> (Docker Community Engine only support: local, json-file and [[journald]])
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:See https://docs.docker.com/config/containers/logging/ for more information
 
:See https://docs.docker.com/config/containers/logging/ for more information
  
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* <code>[[docker-compose logs]]</code>
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== Related terms ==
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* [[Container logging]]
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* <code>[[journalctl -u docker]]</code>
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* <code>[[aws logs create-log-group]]</code>
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* See also https://stackoverflow.com/questions/30969435/where-is-the-docker-daemon-log/30970134#30970134 for further information about docker logs.
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* <code>[[kubectl logs]]</code>
  
 
== See also ==
 
== See also ==
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* {{docker logging}}
 
* {{Docker}}
 
* {{Docker}}
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* {{logging}}
  
  
  
 
[[Category:Docker]]
 
[[Category:Docker]]

Latest revision as of 15:24, 23 May 2022

Docker support logging to format or different platforms, such as [1]


Configuration is done at docker container start time with command docker run -it --log-drive LOG_METHOD CONTAINER_ID

Sending logs to syslog or logstash

docker run --log-driver=syslog --log-opt syslog-address=tcp://<logstash-system-ip>:5000 hello-world



  • Check method configured in a running container:
docker inspect -f '{{.HostConfig.LogConfig.Type}}' CONTAINER_ID
docker inspect -f '{{.HostConfig.LogConfig}}' CONTAINER_ID

docker inspect <container_id|container_name> | grep -A 5 LogConfig

"LogConfig": {
  "Type": "syslog"
  "Config": {}
}

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)[3]
See https://docs.docker.com/config/containers/logging/ for more information


Related terms[edit]

See also[edit]

  • https://docs.docker.com/config/containers/logging/configure/
  • 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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