change Chronograf version from 1.8.0 to 1.8.8 (#236)

charts/chronograf/Chart.yaml

 apiVersion: v1
 name: chronograf
-version: 1.1.18
-appVersion: 1.8.0
+version: 1.1.19
+appVersion: 1.8.8
 description: Open-source web application written in Go and React.js that provides
   the tools to visualize your monitoring data and easily create alerting and automation
   rules.

charts/chronograf/README.md

@@ -47,7 +47,7 @@ The following table lists configurable parameters, their descriptions, and their
 | Parameter                    | Description                                                                                               | Default                                     |
 |:-----------------------------|:----------------------------------------------------------------------------------------------------------|:--------------------------------------------|
 | `image.repository`           | image repository url                                                                                      | quay.io/influxdb/chronograf                 |
-| `image.tag`                  | controller container image tag                                                                            | 1.8.0                                       |
+| `image.tag`                  | controller container image tag                                                                            | 1.8.8                                       |
 | `image.pullPolicy`           | controller container image pull policy                                                                    | IfNotPresent                                |
 | `service.replicas`           | number of replicas for the specified service.type                                                         | 1                                           |
 | `service.type`               | ClusterIP, NodePort, or LoadBalancer                                                                      | ClusterIP                                   |
@@ -139,4 +139,4 @@ envFromSecret: chronograf-google-env-secrets
 [...]
 ```
 
-Check out our [Slack channel](https://www.influxdata.com/slack) for support and information.
\ No newline at end of file
+Check out our [Slack channel](https://www.influxdata.com/slack) for support and information.

charts/chronograf/values.yaml

@@ -3,7 +3,7 @@
 image:
   repository: "chronograf"
   ## default: quay.io/influxdb/chronograf
-  tag: 1.8.0
+  tag: 1.8.8
   pullPolicy: IfNotPresent
 
 ## Specify a service type