Fix node exporter integration with Prometheus

Change-Id: I05fe6c74bccad6dd2fd515dcda4d4efe7e9a50dd
Issue-ID: ONAPARC-440
Signed-off-by: Srivahni Chivukula <srivahni.chivukula@intel.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/vnfs/DAaaS/collection/charts/prometheus-node-exporter/README.md b/vnfs/DAaaS/collection/charts/prometheus-node-exporter/README.md
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+# Prometheus Node Exporter
+
+* Installs prometheus [node exporter](https://github.com/prometheus/node_exporter)
+
+## TL;DR;
+
+```console
+$ helm install stable/prometheus-node-exporter
+```
+
+## Introduction
+
+This chart bootstraps a prometheus [node exporter](http://github.com/prometheus/node_exporter) deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```console
+$ helm install --name my-release stable/prometheus-node-exporter
+```
+
+The command deploys node exporter on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```console
+$ helm delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following table lists the configurable parameters of the Node Exporter chart and their default values.
+
+|             Parameter             |                                                          Description                                                          |                 Default                 |     |
+| --------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | --------------------------------------- | --- |
+| `image.repository`                | Image repository                                                                                                              | `quay.io/prometheus/node-exporter`      |     |
+| `image.tag`                       | Image tag                                                                                                                     | `v0.16.0`                               |     |
+| `image.pullPolicy`                | Image pull policy                                                                                                             | `IfNotPresent`                          |     |
+| `extraArgs`                       | Additional container arguments                                                                                                | `[]`                                    |     |
+| `extraHostVolumeMounts`           | Additional host volume mounts                                                                                                 | {}                                      |     |
+| `podLabels`                       | Additional labels to be added to pods                                                                                         | {}                                      |     |
+| `rbac.create`                     | If true, create & use RBAC resources                                                                                          | `true`                                  |     |
+| `rbac.pspEnabled`                 | Specifies whether a PodSecurityPolicy should be created.                                                                      | `true`                                  |     |
+| `resources`                       | CPU/Memory resource requests/limits                                                                                           | `{}`                                    |     |
+| `service.type`                    | Service type                                                                                                                  | `ClusterIP`                             |     |
+| `service.port`                    | The service port                                                                                                              | `9100`                                  |     |
+| `service.targetPort`              | The target port of the container                                                                                              | `9100`                                  |     |
+| `service.nodePort`                | The node port of the service                                                                                                  |                                         |     |
+| `service.annotations`             | Kubernetes service annotations                                                                                                | `{prometheus.io/scrape: "true"}`        |     |
+| `serviceAccount.create`           | Specifies whether a service account should be created.                                                                        | `true`                                  |     |
+| `serviceAccount.name`             | Service account to be used. If not set and `serviceAccount.create` is `true`, a name is generated using the fullname template |                                         |     |
+| `serviceAccount.imagePullSecrets` | Specify image pull secrets                                                                                                    | `[]`                                    |     |
+| `securityContext`                 | SecurityContext                                                                                                               | `{"runAsNonRoot": true, "runAsUser": 65534}` |     |
+| `affinity`                        | A group of affinity scheduling rules for pod assignment                                                                       | `{}`                                    |     |
+| `nodeSelector`                    | Node labels for pod assignment                                                                                                | `{}`                                    |     |
+| `tolerations`                     | List of node taints to tolerate                                                                                               | `- effect: NoSchedule operator: Exists` |     |
+| `priorityClassName`               | Name of Priority Class to assign pods                                                                                         | `nil`                                   |     |
+| `endpoints`            | list of addresses that have node exporter deployed outside of the cluster                                                                | `[]`                                    |     |
+| `prometheus.monitor.enabled` | Set this to `true` to create ServiceMonitor for Prometheus operator | `false` | |
+| `prometheus.monitor.additionalLabels` | Additional labels that can be used so ServiceMonitor will be discovered by Prometheus | `{}` | |
+| `prometheus.monitor.namespace` | namespace where servicemonitor resource should be created | `the same namespace as prometheus node exporter` | |
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```console
+$ helm install --name my-release \
+  --set serviceAccount.name=node-exporter  \
+    stable/prometheus-node-exporter
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
+
+```console
+$ helm install --name my-release -f values.yaml stable/prometheus-node-exporter
+```