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Merge pull request #2413 from superseb/loglevel

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Describe Rancher log levels
This commit is contained in:
Catherine Luse
2020-04-01 17:35:35 -07:00
committed by GitHub
parent d9d571a3d5 12b9b48f51
commit 0bc00475f0
3 changed files with 54 additions and 49 deletions
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content/rancher/v2.x/en/faq/technical/_index.md
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@@ -56,55 +56,7 @@ New password for default admin user (user-xxxxx):
### How can I enable debug logging?
* Docker Install
* Enable
```
$ docker exec -ti <container_id> loglevel --set debug
OK
$ docker logs -f <container_id>
```
* Disable
```
$ docker exec -ti <container_id> loglevel --set info
OK
```
* Kubernetes install (Helm)
* Enable
```
$ KUBECONFIG=./kube_config_rancher-cluster.yml
$ kubectl --kubeconfig $KUBECONFIG -n cattle-system get pods -l app=rancher | grep '1/1' | awk '{ print $1 }' | xargs -I{} kubectl --kubeconfig $KUBECONFIG -n cattle-system exec {} -- loglevel --set debug
OK
OK
OK
$ kubectl --kubeconfig $KUBECONFIG -n cattle-system logs -l app=rancher
```
* Disable
```
$ KUBECONFIG=./kube_config_rancher-cluster.yml
$ kubectl --kubeconfig $KUBECONFIG -n cattle-system get pods -l app=rancher | grep '1/1' | awk '{ print $1 }' | xargs -I{} kubectl --kubeconfig $KUBECONFIG -n cattle-system exec {} -- loglevel --set info
OK
OK
OK
```
* Kubernetes install (RKE add-on)
* Enable
```
$ KUBECONFIG=./kube_config_rancher-cluster.yml
$ kubectl --kubeconfig $KUBECONFIG exec -n cattle-system $(kubectl --kubeconfig $KUBECONFIG get pods -n cattle-system -o json | jq -r '.items[] | select(.spec.containers[].name=="cattle-server") | .metadata.name') -- loglevel --set debug
OK
$ kubectl --kubeconfig $KUBECONFIG logs -n cattle-system -f $(kubectl --kubeconfig $KUBECONFIG get pods -n cattle-system -o json | jq -r '.items[] | select(.spec.containers[].name="cattle-server") | .metadata.name')
```
* Disable
```
$ KUBECONFIG=./kube_config_rancher-cluster.yml
$ kubectl --kubeconfig $KUBECONFIG exec -n cattle-system $(kubectl --kubeconfig $KUBECONFIG get pods -n cattle-system -o json | jq -r '.items[] | select(.spec.containers[].name=="cattle-server") | .metadata.name') -- loglevel --set info
OK
```
See [Troubleshooting: Logging]({{<baseurl>}}/rancher/v2.x/en/troubleshooting/logging/)
### My ClusterIP does not respond to ping
content/rancher/v2.x/en/troubleshooting/_index.md
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@@ -35,3 +35,8 @@ This section contains information to help you troubleshoot issues when using Ran
- [Imported clusters]({{<baseurl>}}/rancher/v2.x/en/troubleshooting/imported-clusters/)
If you experience issues when [Importing Kubernetes Clusters]({{<baseurl>}}/rancher/v2.x/en/cluster-provisioning/imported-clusters/)
- [Logging]({{<baseurl>}}/rancher/v2.x/en/troubleshooting/logging/)
Read more about what log levels can be configured and how to configure a log level.
content/rancher/v2.x/en/troubleshooting/logging/_index.md
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---
title: Logging
weight: 110
---
The following log levels are used in Rancher:
| Name | Description |
|---------|-------------|
| `info` | Logs informational messages. This is the default log level. |
| `debug` | Logs more detailed messages that can be used to debug. |
| `trace` | Logs very detailed messages on internal functions. This is very verbose and can contain sensitive information. |
### How to configure a log level
* Kubernetes install
* Configure debug log level
```
$ KUBECONFIG=./kube_config_rancher-cluster.yml
$ kubectl --kubeconfig $KUBECONFIG -n cattle-system get pods -l app=rancher | grep '1/1' | awk '{ print $1 }' | while read rancherpod; do kubectl --kubeconfig $KUBECONFIG -n cattle-system exec $rancherpod -- loglevel --set debug; done
OK
OK
OK
$ kubectl --kubeconfig $KUBECONFIG -n cattle-system logs -l app=rancher
```
* Configure info log level
```
$ KUBECONFIG=./kube_config_rancher-cluster.yml
$ kubectl --kubeconfig $KUBECONFIG -n cattle-system get pods -l app=rancher | grep '1/1' | awk '{ print $1 }' | while read rancherpod; do kubectl --kubeconfig $KUBECONFIG -n cattle-system exec $rancherpod -- loglevel --set info; done
OK
OK
OK
```
* Docker Install
* Configure debug log level
```
$ docker exec -ti <container_id> loglevel --set debug
OK
$ docker logs -f <container_id>
```
* Configure info log level
```
$ docker exec -ti <container_id> loglevel --set info
OK
```