Check if environment variables are not empty strings as well as not null #623
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When trying to use teedy with the k8s-at-home chart, it sets the environment variables to be empty strings when not set.
This is actually quite common so usually
Strings.isNullOrEmpty
or similar is used to check if that is the case. You do this in one or two places in your codebase already. This just makes the codebase consistently do this.A bug has been filed on k8s-at-home too: k8s-at-home/charts#1422