chart: Disable memcached when Flux is in readonly mode

chart/flux/README.md

@@ -213,7 +213,7 @@ The following tables lists the configurable parameters of the Flux chart and the
 | `sync.timeout`                                    | `None`                                               | Duration after which sync operations time out (defaults to `1m`)
 | `sync.interval`                                   | `<git.pollInterval>`                                 | Controls how often Flux will apply what’s in git, to the cluster, absent new commits (defaults to `git.pollInterval`)
 | `git.url`                                         | `None`                                               | URL of git repo with Kubernetes manifests
-| `git.readonly`                                    | `false`                                              | If `true`, the git repo will be considered read-only, and Flux will not attempt to write to it
+| `git.readonly`                                    | `false`                                              | If `true`, the git repo will be considered read-only, Flux will not attempt to write to it, image scanning will be disabled and memcached will not be deployed
 | `git.branch`                                      | `master`                                             | Branch of git repo to use for Kubernetes manifests
 | `git.path`                                        | `None`                                               | Path within git repo to locate Kubernetes manifests (relative path)
 | `git.user`                                        | `Weave Flux`                                         | Username to use as git committer

chart/flux/templates/memcached.yaml

@@ -1,4 +1,4 @@
-{{- if .Values.memcached.enabled }}
+{{- if and (eq .Values.memcached.enabled true) (eq .Values.git.readonly false) }}
 apiVersion: apps/v1
 kind: Deployment
 metadata: