Add extraVolumeSecrets chart value

This value can be used to render `volumes` and `volumeMounts`.

Author: Mario Valderrama

charts/cluster-autoscaler/Chart.yaml

@@ -17,4 +17,4 @@ name: cluster-autoscaler
 sources:
   - https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler
 type: application
-version: 9.1.0
+version: 9.2.0

charts/cluster-autoscaler/README.md

@@ -354,6 +354,7 @@ Though enough for the majority of installations, the default PodSecurityPolicy _
 | extraEnv | object | `{}` | Additional container environment variables. |
 | extraEnvConfigMaps | object | `{}` | Additional container environment variables from ConfigMaps. |
 | extraEnvSecrets | object | `{}` | Additional container environment variables from Secrets. |
+| extraVolumeSecrets | object | `{}` | Additional volumes to mount from Secrets. |
 | fullnameOverride | string | `""` | String to fully override `cluster-autoscaler.fullname` template. |
 | image.pullPolicy | string | `"IfNotPresent"` | Image pull policy |
 | image.pullSecrets | list | `[]` | Image pull secrets |

charts/cluster-autoscaler/templates/deployment.yaml

@@ -179,16 +179,23 @@ spec:
           securityContext:
             {{ toYaml .Values.containerSecurityContext | nindent 12 | trim }}
           {{- end }}
-          {{- if or (eq .Values.cloudProvider "gce") (eq .Values.cloudProvider "magnum") }}
+          {{- if or (eq .Values.cloudProvider "gce") (eq .Values.cloudProvider "magnum") .Values.extraVolumeSecrets }}
           volumeMounts:
+          {{- if or (eq .Values.cloudProvider "gce") (eq .Values.cloudProvider "magnum") }}
             - name: cloudconfig
               mountPath: {{ .Values.cloudConfigPath }}
               readOnly: true
+          {{- end }}
           {{- if and (eq .Values.cloudProvider "magnum") (.Values.magnumCABundlePath) }}
             - name: ca-bundle
               mountPath: {{ .Values.magnumCABundlePath }}
               readOnly: true
           {{- end }}
+          {{- range $key, $value := .Values.extraVolumeSecrets }}
+            - name: {{ $key }}
+              mountPath: {{ required "Must specify mountPath!" $value.mountPath }}
+              readOnly: true
+          {{- end }}
           {{- end }}
     {{- if .Values.affinity }}
       affinity:
@@ -205,16 +212,27 @@ spec:
       securityContext:
         {{ toYaml .Values.securityContext | nindent 8 | trim }}
       {{- end }}
-      {{- if or (eq .Values.cloudProvider "gce") (eq .Values.cloudProvider "magnum") }}
+      {{- if or (eq .Values.cloudProvider "gce") (eq .Values.cloudProvider "magnum") .Values.extraVolumeSecrets }}
       volumes:
+      {{- if or (eq .Values.cloudProvider "gce") (eq .Values.cloudProvider "magnum") }}
         - name: cloudconfig
           hostPath:
             path: {{ .Values.cloudConfigPath }}
+      {{- end }}
       {{- if and (eq .Values.cloudProvider "magnum") (.Values.magnumCABundlePath) }}
         - name: ca-bundle
           hostPath:
             path: {{ .Values.magnumCABundlePath }}
       {{- end }}
+      {{- range $key, $value := .Values.extraVolumeSecrets }}
+        - name: {{ $key }}
+          secret:
+            secretName: {{ default (include "cluster-autoscaler.fullname" $) $value.name }}
+            {{- if $value.items }}
+            items:
+            {{- toYaml $value.items | nindent 14 }}
+            {{- end }}
+      {{- end }}
       {{- end }}
       {{- if .Values.image.pullSecrets }}
       imagePullSecrets:

charts/cluster-autoscaler/values.yaml

@@ -162,6 +162,17 @@ envFromConfigMap: ""
 # envFromSecret -- Secret name to use as envFrom.
 envFromSecret: ""
 
+# extraVolumeSecrets -- Additional volumes to mount from Secrets.
+extraVolumeSecrets: {}
+  # autoscaler-vol:
+  #   mountPath: /data/autoscaler/
+  # custom-vol:
+  #   name: custom-secret
+  #   mountPath: /data/custom/
+  #   items:
+  #     - key: subkey
+  #       path: mypath
+
 # fullnameOverride -- String to fully override `cluster-autoscaler.fullname` template.
 fullnameOverride: ""