Add Vultr cloud provider helm support

Signed-off-by: Carlos Mondragon <cmondragon@vultr.com>

Author: mondragonfx

cluster-autoscaler/charts/cluster-autoscaler/Chart.yaml

@@ -11,4 +11,4 @@ name: cluster-autoscaler
 sources:
   - https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler
 type: application
-version: 9.55.1
+version: 9.56.0

cluster-autoscaler/charts/cluster-autoscaler/README.md

@@ -76,6 +76,7 @@ To create a valid configuration, follow instructions for your cloud provider:
 - [Exoscale](#exoscale)
 - [Hetzner Cloud](#hetzner-cloud)
 - [Civo](#civo)
+- [Vultr](#vultr)
 
 ### Templating the autoDiscovery.clusterName
 
@@ -302,6 +303,25 @@ Otherwise specify the following parameters:
 
 Read [cluster-autoscaler/cloudprovider/civo/README.md](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/civo/README.md) for further information on the setup without helm.
 
+### Vultr
+
+The following parameters are required:
+
+- `cloudProvider=vultr`
+- `cloudConfigPath=/etc/kubernetes/cloud-config`
+
+A Vultr cloud configuration file must be provided as a valid JSON file. It contains the Vultr API token and the VKE cluster ID.
+
+The JSON configuration file supports the following fields:
+
+```JSON
+{
+  "cluster_id": "<VKE_CLUSTER_ID>",
+  "token": "<VULTR_API_KEY>"
+}
+```
+Read [cluster-autoscaler/cloudprovider/vultr/README.md](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/vultr/README.md) for further information on the setup without helm.
+
 ## Uninstalling the Chart
 
 To uninstall `my-release`:

cluster-autoscaler/charts/cluster-autoscaler/README.md.gotmpl

@@ -76,6 +76,7 @@ To create a valid configuration, follow instructions for your cloud provider:
 - [Exoscale](#exoscale)
 - [Hetzner Cloud](#hetzner-cloud)
 - [Civo](#civo)
+- [Vultr](#vultr)
 
 ### Templating the autoDiscovery.clusterName
 
@@ -302,6 +303,25 @@ Otherwise specify the following parameters:
 
 Read [cluster-autoscaler/cloudprovider/civo/README.md](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/civo/README.md) for further information on the setup without helm.
 
+### Vultr
+
+The following parameters are required:
+
+- `cloudProvider=vultr`
+- `cloudConfigPath=/etc/kubernetes/cloud-config`
+
+A Vultr cloud configuration file must be provided as a valid JSON file. It contains the Vultr API token and the VKE cluster ID.
+
+The JSON configuration file supports the following fields:
+
+```JSON
+{
+  "cluster_id": "<VKE_CLUSTER_ID>",
+  "token": "<VULTR_API_KEY>"
+}
+```
+Read [cluster-autoscaler/cloudprovider/vultr/README.md](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/vultr/README.md) for further information on the setup without helm.
+
 ## Uninstalling the Chart
 
 To uninstall `my-release`:

cluster-autoscaler/charts/cluster-autoscaler/templates/deployment.yaml

@@ -79,7 +79,7 @@ spec:
             {{- end }}
             {{- end }}
           {{- end }}
-          {{- if eq .Values.cloudProvider "rancher" }}
+          {{- if or (eq .Values.cloudProvider "rancher") (eq .Values.cloudProvider "vultr") }}
             {{- if .Values.cloudConfigPath }}
             - --cloud-config={{ .Values.cloudConfigPath }}
             {{- end }}