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Mathieu CollinandMathieu Collin
c284dcf29f
Signed-off-by: Mathieu Collin <mathieu.collin.pro@gmail.com> Co-authored-by: Mathieu Collin <mathieu.collin.ext@orange.com>
76 lines
5.8 KiB
Markdown
76 lines
5.8 KiB
Markdown
# Kubernetes Node Problem Detector
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This chart installs a [node-problem-detector](https://github.com/kubernetes/node-problem-detector) daemonset. This tool aims to make various node problems visible to the upstream layers in cluster management stack. It is a daemon which runs on each node, detects node problems and reports them to apiserver.
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## TL;DR;
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```console
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$ helm install stable/node-problem-detector
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```
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## Prerequisites
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- Kubernetes 1.9+ with Beta APIs enabled
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## Installing the Chart
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To install the chart with the release name `my-release` and default configuration:
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```console
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$ helm install my-release stable/node-problem-detector
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```
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To install the chart with the release name `my-release` and custom configuration with yaml a file in the kube-system namespace:
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```console
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$ helm install my-release stable/node-problem-detector --values values.yaml --namespace kube-system
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```
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## Uninstalling the Chart
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To delete the chart:
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```console
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$ helm delete my-release
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```
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## Configuration
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Custom System log monitor config files can be created, see [here](https://github.com/kubernetes/node-problem-detector/tree/master/config) for examples.
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The following table lists the configurable parameters for this chart and their default values.
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| Parameter | Description | Default |
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|---------------------------------------|--------------------------------------------|--------------------------------------------------------------|
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| `affinity` | Map of node/pod affinities | `{}` |
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| `annotations` | Optional daemonset annotations | `{}` |
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| `fullnameOverride` | Override the fullname of the chart | `nil` |
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| `image.pullPolicy` | Image pull policy | `IfNotPresent` |
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| `image.repository` | Image | `k8s.gcr.io/node-problem-detector` |
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| `image.tag` | Image tag | `v0.8.1` |
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| `hostpath.logdir` | Log directory path on K8s host | `/var/log` |
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| `nameOverride` | Override the name of the chart | `nil` |
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| `rbac.create` | RBAC | `true` |
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| `rbac.pspEnabled` | PodSecuritypolicy | `false` |
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| `hostNetwork` | Run pod on host network | `false` |
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| `priorityClassName` | Priority class name | `""` |
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| `securityContext` | Pod security context | `{privileged: true}` |
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| `resources` | Pod resource requests and limits | `{}` |
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| `settings.custom_monitor_definitions` | User-specified custom monitor definitions | `{}` |
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| `settings.log_monitors` | System log monitor config files | `[/config/kernel-monitor.json, /config/docker-monitor.json]` |
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| `settings.custom_plugin_monitors` | Custom plugin monitor config files | `[]` |
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| `settings.prometheus_address` | Prometheus exporter address | `0.0.0.0` |
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| `settings.prometheus_port` | Prometheus exporter port | `20257` |
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| `settings.heartBeatPeriod` | Syncing interval with API server | `5m0s` |
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| `serviceAccount.create` | Whether a ServiceAccount should be created | `true` |
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| `serviceAccount.name` | Name of the ServiceAccount to create | Generated value from template |
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| `tolerations` | Optional daemonset tolerations | `[{effect: NoSchedule, operator: Exists}]` |
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| `nodeSelector` | Optional daemonset nodeSelector | `{}` |
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| `env` | Optional daemonset environment variables | `[]` |
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| `labels` | Optional daemonset labels | `{}` |
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| `extraVolumes` | Optional daemonset volumes to add | `[]` |
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| `extraVolumeMounts` | Optional daemonset volumeMounts to add | `[]` |
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Specify each parameter using the `--set key=value[,key=value]` argument to `helm install` or provide a YAML file containing the values for the above parameters.
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