Stateful set pulls kubectl binaries from public urls

[danielwegener]

Sorry to bother you again.
The statefulset.yaml setup initContainer tries to pull the kubectl binary from a public Url. This unfortunately fails for our internal (offline) cluster. Do you think it would be legit to make this download optional (enable flag, something like graylog.init.downloadKubectl)? I'd then use an image for the setup container that already contains kubectl.

charts/charts/graylog/templates/statefulset.yaml

Line 64 in 10687be

wget https://storage.googleapis.com/kubernetes-release/release/v1.9.0/bin/linux/amd64/kubectl -O /k8s/kubectl

Thanks!

[danielwegener]

Suggestion: Also, the URL or at least the release version should be configurable :) (and maybe default to {{Capabilities.Kube.Version}}, so the kubectl version matches the cluster kubernetes version)