Refactor preStart Hook for Helm 2.0 (#200)

* MLE-4158: Refactor for Helm 2.0

* MLE-4158: Fix Template Test Fail

* Add Change for Ingress

* merge configmap with latest change

* refactor handling connection with https

* refactor statefulSet script into configMap

* bug fix for liveness probe not working

* fix testing issue

* fix separate test failure

* remove comments

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Co-authored-by: Peng Zhou <[email protected]>

Author: pengzhouml