can you share how you successfully installed as mine is giving errors on gcp. I followed the github page instructions yo install provided here GitHub - openhab/openhab-cloud: Cloud companion for openHAB instances . But doesn’t work. Please help me. My issue I have shared here - Installation Error openhab-cloud gcp ubuntu 18.04 - #2 by Thedannymullen
If you can share your process, it might help me. Thanks in advance. Oh and about configuration I saw this post that I think might help you - openHAB Cloud setup on Google Cloud Platform . This explains some configuration along with firebase conditions about tier.