Installing/Upgrading

[2color]

Hey,

I came across this tip:

In order to use the same command when installing and upgrading a release, use the following command: helm upgrade --install <release name> --values <values file> <chart directory>

From: https://github.com/kubernetes/helm/blob/master/docs/charts_tips_and_tricks.md#upgrade-a-release-idempotently

@msiegenthaler Was there a reason you didn't use this to avoid checking for upgrade/install?

P.S.
Thanks again for creating this resourceful! It's exceedingly useful

[msiegenthaler]

Actually that's a very good question. I do use the upgrade --install when I use helm on the commandline.

The differences are:

• Only on install:

  if [ -n "$release" ]; then
    helm_cmd="$helm_cmd -n $release"
    helm_echo="$helm_echo -n $release"
  fi
  if [ "$replace" = true ]; then
    helm_cmd="$helm_cmd --replace"
    helm_echo="$helm_echo --replace"
  fi

  # Find the name of the release
  release=`cat $logfile | grep "NAME:" | awk '{print $2}'`

• only in upgrade

  if [ "$recreate_pods" = true ]; then
    helm_cmd="$helm_cmd --recreate-pods"
    helm_echo="$helm_echo --recreate-pods"
  fi

Recreate pods and replace are not really relevent, but having an optional release is.

So the reason I did it that way is to support installing releases without having to specify a name. Is that a valid use case for anyone? I'm not currently seeing a scenario where I'd leave out the release.