from rooki.client import Rooki
rooki = Rooki("http://rook.dkrz.de/wps", mode='sync')
resp = rooki.dashboard(site="dkrz", time="2021-06-01/")
url = resp.response.processOutputs[0].reference
print(url)
http://rook4.cloud.dkrz.de:80/outputs/rook/cb4c62f2-e560-11eb-abf2-fa163e1098db/dashboard.html