add support for pod disruption budget (#13215)

* add support for pod disruption budget Signed-off-by: Jay Howard <[email protected]> * support pod disruption budget parameters explicitly; bump minor version Signed-off-by: Jay Howard <[email protected]> * remove default values for minAvailable and maxUnavailable since they're mutually exclusive and neither is required Signed-off-by: Jay Howard <[email protected]>
helm · Apr 30, 2019 · 4120bbf · 4120bbf · vdboor · May 1, 2019
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diff --git a/stable/kubernetes-dashboard/Chart.yaml b/stable/kubernetes-dashboard/Chart.yaml
@@ -1,5 +1,5 @@
 name: kubernetes-dashboard
-version: 1.4.1
+version: 1.5.0
 appVersion: 1.10.1
 description: General-purpose web UI for Kubernetes clusters
 keywords:

diff --git a/stable/kubernetes-dashboard/README.md b/stable/kubernetes-dashboard/README.md
@@ -73,6 +73,9 @@ The following table lists the configurable parameters of the kubernetes-dashboar
 | `serviceAccount.name`               | Service account to be used. If not set and serviceAccount.create is `true` a name is generated using the fullname template. |                                                                            |
 | `livenessProbe.initialDelaySeconds` | Number of seconds to wait before sending first probe                                                                        | 30                                                                         |
 | `livenessProbe.timeoutSeconds`      | Number of seconds to wait for probe response                                                                                | 30                                                                         |
+| `podDisruptionBudget.enabled`       | Create a PodDisruptionBudget                                                                                                | `false`                                                                    |
+| `podDisruptionBudget.minAvailable`  | Minimum available instances; ignored if there is no PodDisruptionBudget                                                     |                                                                            |
+| `podDisruptionBudget.maxUnavailable`| Maximum unavailable instances; ignored if there is no PodDisruptionBudget                                                   |                                                                            |
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
 

diff --git a/stable/kubernetes-dashboard/templates/pdb.yaml b/stable/kubernetes-dashboard/templates/pdb.yaml
@@ -0,0 +1,23 @@
+{{- if .Values.podDisruptionBudget.enabled -}}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  labels:
+    app: {{ template "kubernetes-dashboard.name" . }}
+    chart: {{ template "kubernetes-dashboard.chart" . }}
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+  name: {{ template "kubernetes-dashboard.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+
+spec:
+  {{- if .Values.podDisruptionBudget.minAvailable }}
+  minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+  {{- end  }}
+  {{- if .Values.podDisruptionBudget.maxUnavailable }}
+  maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
+  {{- end  }}
+  selector:
+    matchLabels:
+      app: {{ template "kubernetes-dashboard.name" . }}
+{{- end -}}
diff --git a/stable/kubernetes-dashboard/values.yaml b/stable/kubernetes-dashboard/values.yaml
@@ -159,3 +159,9 @@ livenessProbe:
   initialDelaySeconds: 30
   # Number of seconds to wait for probe response
   timeoutSeconds: 30
+
+podDisruptionBudget:
+  # https://kubernetes.io/docs/tasks/run-application/configure-pdb/
+  enabled: false
+  minAvailable:
+  maxUnavailable: