Allow 0 in draksetup scale to disable services, don't enable first drakrun worker on draksetup postinstall #972
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draksetup scale 0
would be very useful command to stop drakrun services. This PR allows to set 0 as number of instancesdraksetup postinstall
enables new drakrun instance automatically which is sometimes pretty annoying and unexpected. It's more clear to let user enable new worker manually by typing "draksetup scale 1"