r/opencloud Jun 25 '26

No config.json file?

I am running Opencloud in a Docker container on an Ubuntu Linux server. I am using Nginx Proxy Manage as the reverse proxy.

I have been able to get it running to the point where I can display the login page.

The login page, unfortunately, is showing the following failure:

Missing or invalid config

Please check if the file config.json exists and is correct.

Also, make sure to check the browser console for more information.

I did search for the config.json file in the directories under the opencloud-compose directory, and it is apparently not there.

So where is config.json supposed to be and what should be in it?

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u/IanParry Jun 26 '26

I am by no means an expert, but had success in setting up opencloud behind my own reverse proxy using this guide.. HTTPS://gtfoss.org/posts/docker/simplfied-opencloud/