feat(helm): custom arguments

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: 9.43.3
+version: 9.44.0

charts/cluster-autoscaler/README.md

@@ -340,6 +340,14 @@ extraVolumeMounts:
   readOnly: true
 ```
 
+### Custom arguments
+
+You can use the `customArgs` value to give any argument to cluster autoscaler command.
+
+Typical use case is to give an environment variable as an argument which will be interpolated at execution time.
+
+This is helpful when you need to inject values from configmap or secret.
+
 ## Troubleshooting
 
 The chart will succeed even if the container arguments are incorrect. A few minutes after starting `kubectl logs -l "app=aws-cluster-autoscaler" --tail=50` should loop through something like
@@ -421,6 +429,7 @@ vpa:
 | clusterAPIMode | string | `"incluster-incluster"` | Cluster API mode, see https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/clusterapi/README.md#connecting-cluster-autoscaler-to-cluster-api-management-and-workload-clusters Syntax: workloadClusterMode-ManagementClusterMode for `kubeconfig-kubeconfig`, `incluster-kubeconfig` and `single-kubeconfig` you always must mount the external kubeconfig using either `extraVolumeSecrets` or `extraMounts` and `extraVolumes` if you dont set `clusterAPIKubeconfigSecret`and thus use an in-cluster config or want to use a non capi generated kubeconfig you must do so for the workload kubeconfig as well |
 | clusterAPIWorkloadKubeconfigPath | string | `"/etc/kubernetes/value"` | Path to kubeconfig for connecting to Cluster API managed workloadcluster, only used if `clusterAPIMode=kubeconfig-kubeconfig or kubeconfig-incluster` |
 | containerSecurityContext | object | `{}` | [Security context for container](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/) |
+| customArgs | list | `[]` | Additional custom container arguments. Refer to https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/FAQ.md#what-are-the-parameters-to-ca for the full list of cluster autoscaler parameters and their default values. List of arguments as strings. |
 | deployment.annotations | object | `{}` | Annotations to add to the Deployment object. |
 | dnsPolicy | string | `"ClusterFirst"` | Defaults to `ClusterFirst`. Valid values are: `ClusterFirstWithHostNet`, `ClusterFirst`, `Default` or `None`. If autoscaler does not depend on cluster DNS, recommended to set this to `Default`. |
 | envFromConfigMap | string | `""` | ConfigMap name to use as envFrom. |

charts/cluster-autoscaler/README.md.gotmpl

@@ -340,6 +340,14 @@ extraVolumeMounts:
   readOnly: true
 ```
 
+### Custom arguments
+
+You can use the `customArgs` value to give any argument to cluster autoscaler command.
+
+Typical use case is to give an environment variable as an argument which will be interpolated at execution time.
+
+This is helpful when you need to inject values from configmap or secret.
+
 ## Troubleshooting
 
 The chart will succeed even if the container arguments are incorrect. A few minutes after starting `kubectl logs -l "app=aws-cluster-autoscaler" --tail=50` should loop through something like

charts/cluster-autoscaler/templates/deployment.yaml

@@ -132,6 +132,9 @@ spec:
             - --{{ $key | mustRegexFind "^[^_]+" }}
             {{- end }}
           {{- end }}
+          {{- range .Values.customArgs }}
+            - {{ . }}
+          {{- end }}
           env:
             - name: POD_NAMESPACE
               valueFrom:

charts/cluster-autoscaler/values.yaml

@@ -196,6 +196,12 @@ extraArgs:
   # balancing-ignore-label_1: first-label-to-ignore
   # balancing-ignore-label_2: second-label-to-ignore
 
+# customArgs -- Additional custom container arguments.
+# Refer to https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/FAQ.md#what-are-the-parameters-to-ca for the full list of cluster autoscaler
+# parameters and their default values.
+# List of arguments as strings.
+customArgs: []
+
 # extraEnv -- Additional container environment variables.
 extraEnv: {}