We should consider pulling multiple apps with the APP_LABEL

[mpryc]

Currently Pelorus tracks one app per label for all, but github exporter in a format:

app.kubernetes.io/name=<app_name>

We should consider making same labeling mechanism across all exporters, either going with:

app.kubernetes.io/name=<app_name>,<app2_name>,<app3_name>

Or documenting and changing github to support having same labels with different values per on item:

app.kubernetes.io/name=<app_name>
app.kubernetes.io/name=<app2_name>
app.kubernetes.io/name=<app3_name>

[KevinMGranger]

We need to make sure this won't mess with the calculations as they are.