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Tim Hockin
2015-07-17 15:35:41 -07:00
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docs/user-guide/logging.md
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@@ -30,12 +30,15 @@ Documentation for other releases can be found at
<!-- END STRIP_FOR_RELEASE -->
<!-- END MUNGE: UNVERSIONED_WARNING -->
# Logging
## Logging by Kubernetes Components
Kubernetes components, such as kubelet and apiserver, use the [glog](https://godoc.org/github.com/golang/glog) logging library. Developer conventions for logging severity are described in [docs/devel/logging.md](../devel/logging.md).
## Examining the logs of running containers
The logs of a running container may be fetched using the command `kubectl logs`. For example, given
this pod specification [counter-pod.yaml](../../examples/blog-logging/counter-pod.yaml), which has a container which writes out some text to standard
output every second. (You can find different pod specifications [here](logging-demo/).)
@@ -95,15 +98,18 @@ $ kubectl logs kube-dns-v3-7r1l9 etcd
```
## Cluster level logging to Google Cloud Logging
The getting started guide [Cluster Level Logging to Google Cloud Logging](../getting-started-guides/logging.md)
explains how container logs are ingested into [Google Cloud Logging](https://cloud.google.com/logging/docs/)
and shows how to query the ingested logs.
## Cluster level logging with Elasticsearch and Kibana
The getting started guide [Cluster Level Logging with Elasticsearch and Kibana](../getting-started-guides/logging-elasticsearch.md)
describes how to ingest cluster level logs into Elasticsearch and view them using Kibana.
## Ingesting Application Log Files
Cluster level logging only collects the standard output and standard error output of the applications
running in containers. The guide [Collecting log files within containers with Fluentd](../../contrib/logging/fluentd-sidecar-gcp/README.md) explains how the log files of applications can also be ingested into Google Cloud logging.