following the release of LAVA 2019.06, we released lavacli v0.9.7
This release brings only one new feature: get/set worker environment
In order to use this feature, you need LAVA >= 2019.06
Then you can:
  lavacli workers env get <hostname>
  lavacli workers env set <hostname> <env.yaml>
As usual, lavacli could be installed from:
Cheers