update kapacitor to the latest release and some fixed to match best practices (#7626)

stable/kapacitor/Chart.yaml

 name: kapacitor
-version: 0.5.1
-appVersion: 1.4
+version: 1.0.0
+appVersion: 1.6.2
 description: InfluxDB's native data processing engine. It can process both stream
   and batch data from InfluxDB.
 keywords:
@@ -12,6 +12,6 @@ home: https://www.influxdata.com/time-series-platform/kapacitor/
 sources:
 - https://github.com/influxdata/kapacitor
 maintainers:
-- name: Jack Zampolin
+- name: jackzampolin
   email: jack@influxdb.com
 engine: gotpl

stable/kapacitor/README.md

@@ -48,13 +48,14 @@ The following table lists the configurable parameters of the Kapacitor chart and
 | Parameter               | Description                           | Default                                                    |
 | ----------------------- | ----------------------------------    | ---------------------------------------------------------- |
 | `image.repository` | Kapacitor image | `kapacitor` |
-| `image.tag` | Kapacitor image version | `1.2` |
+| `image.tag` | Kapacitor image version | `1.6.2-alpine` |
 | `image.pullPolicy` | Kapacitor image pull policy |  `IfNotPresent` |
 | `service.type` | Kapacitor web service type  | `ClusterIP` |
 | `persistence.enabled` | Enable Kapacitor persistence using Persistent Volume Claims | `false` |
 | `persistence.storageClass` | Kapacitor Persistent Volume Storage Class | `default` |
 | `persistence.accessMode` | Kapacitor Persistent Volume Access Mode | `ReadWriteOnce` |
 | `persistence.size` | Kapacitor Persistent Volume Storage Size | `8Gi` |
+| `persistence.existingClaim` | Kapacitor existing PVC name | `nil` |
 | `resources.request.memory` | Kapacitor memory request | `256Mi` |
 | `resources.request.cpu` | Kapacitor cpu request | `0.1` |
 | `resources.limits.memory` | Kapacitor memory limit | `2Gi` |

stable/kapacitor/templates/deployment.yaml

@@ -40,7 +40,7 @@ spec:
         - name: data
         {{- if .Values.persistence.enabled }}
           persistentVolumeClaim:
-            claimName: {{ template "kapacitor.fullname" . }}
+            claimName: {{ .Values.persistence.existingClaim | default (include "kapacitor.fullname" .) }}
         {{- else }}
           emptyDir: {}
         {{- end }}

stable/kapacitor/templates/pvc.yaml

-{{- if .Values.persistence.enabled }}
+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
+{{- if .Values.influxURL }}
 kind: PersistentVolumeClaim
 apiVersion: v1
 metadata:
@@ -22,3 +23,4 @@ spec:
 {{- end }}
 {{- end }}
 {{- end }}
+{{- end }}

stable/kapacitor/values.yaml

@@ -3,7 +3,7 @@
 ##
 image:
   repository: "kapacitor"
-  tag: "1.4-alpine"
+  tag: "1.6.2-alpine"
   pullPolicy: "IfNotPresent"
 
 ## Specify a service type, defaults to NodePort
@@ -16,7 +16,7 @@ service:
 ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
 ##
 persistence:
-  enabled: false
+  enabled: true
   ## kapacitor data Persistent Volume Storage Class
   ## If defined, storageClassName: <storageClass>
   ## If set to "-", storageClassName: "", which disables dynamic provisioning
@@ -27,6 +27,7 @@ persistence:
   # storageClass: "-"
   accessMode: ReadWriteOnce
   size: 8Gi
+  # existingClaim: ""
 
 ## Configure resource requests and limits
 ## ref: http://kubernetes.io/docs/user-guide/compute-resources/