I am trying to develop a Helm chart for an application to ease release management and deployment of the application to kubernetes. In order to do so, i have written a pre-install hook in the Helm chart.

    apiVersion: batch/v1
kind: Job
metadata:
  name: px-etcd-preinstall-hook
  labels:
    heritage: {{.Release.Service | quote }}
    release: {{.Release.Name | quote }}
    chart: "{{.Chart.Name}}-{{.Chart.Version}}"
  annotations:
    "helm.sh/hook": pre-install
    "helm.sh/hook-weight": "-5"
    "helm.sh/hook-delete-policy": hook-succeeded, hook-failed
spec:
  backoffLimit: 2
  template:
    spec:
      restartPolicy: Never
      containers:
      - name: pre-install-job
        imagePullPolicy: Always
        image: "hrishi/px-etcd-preinstall-hook:v1"
        command: ['/bin/sh']
        args: ['/usr/bin/etcdStatus.sh',"{{ .Values.etcdEndPoint }}"]

This docker container just checks if an ETCD endpoint is accessible or not. Idea is for it to wait for a few seconds and a few tries and then exit.
Here is the initial shell script which runs as part of this container.

set -x
echo "Initializing..."
svcname=$1
echo $svcname
etcdURL=$(echo "$svcname" | awk -F: '{ st = index($0,":");print substr($0,st+1)}')
echo $etcdURL

response=$(curl --write-out %{http_code} --silent --output /dev/null "$etcdURL/version")
echo $response

if [[ "$response" != 200 ]]
then
    echo "Provided etcd url is not reachable. Exiting.."
    exit 1
fi 

All is well and fine if the ETCD url is accessible, but if the etcd url is inaccessible then I get an error stating Error: Job failed: BackoffLimitExceeded”

I want to check if there is a way of setting a user friendly error message stating that the url isnt accessible or something like that. Seems there isnt a way to do it right now, not that i know of. I tried this to just be a Pod instead of a Job and that doesnt work either.

Looked up at the docs for Helm but couldnt seem to find any information regarding this.