ODK Central on Cloudron - offline-first field data collection server

• Main Page: https://getodk.org/ (docs: https://docs.getodk.org/)
• Git: https://github.com/getodk/central (ecosystem: https://github.com/getodk)
• Licence: Apache 2.0
• Dockerfile: Yes — ships as a docker-compose stack (backend, frontend/nginx, PostgreSQL, Enketo for web forms, pyxform-http). Multi-container, not a single image.
• Demo: No public self-host demo. The creators run ODK Cloud, a managed-hosting service with a free trial at https://getodk.org/.

• Summary: ODK (Open Data Kit) is an open-source platform for collecting data in the field, including in fully offline environments. The typical workflow: design a form as an XLSForm spreadsheet, publish it to an ODK Central server, pull it into the ODK Collect Android app (or browser-based Web Forms), enumerators fill submissions offline, and data syncs back to Central for management, user/permission control, and export/analysis. ODK Central is the server component requested here — it hosts form definitions, stores submissions, manages accounts and roles, and exposes a REST/OData API plus a Vue web UI. It is widely used by researchers, NGOs, and humanitarian and public-health teams (KoBoToolbox is itself built on ODK).

• Notes: Mature project, active community, clean Apache 2.0 licence. Main packaging concern for Cloudron: it is a multi-service compose stack (Node backend + frontend + Postgres + Enketo + pyxform-http), so it needs to fit Cloudron's single-app + addon model — Postgres maps cleanly to a Cloudron addon, but Enketo and pyxform-http are extra long-running services that complicate a one-container package. Upstream steers users toward ODK Cloud and a DigitalOcean install path, so a Cloudron package would be a genuinely useful self-hosting alternative.

• Alternative to / Libhunt link: Alternative to KoBoToolbox, SurveyCTO, Google Forms, REDCap, Ona. Self-hosted data-collection category: https://selfhosted.libhunt.com/
• Screenshots: Logo and product screenshots are on https://getodk.org/ and the docs (e.g. https://docs.getodk.org/central-using/). Brand assets: getodk.org press/brand page; Central UI screenshots from the docs.

Having the same notification. Apps finally start after long time but the notification is still there.

Thanks. I tried the documentation but its too hard for me to understand. I am trying to connect two different servers in two different locations which are not in the same network.

Hello, Is it possible to create multiple Minio server and connect them together to create a big pool and some kind of RAID?

What happens if I do not renew my subscription? Will my apps stop working? Just a thought.

@ultraviolet Are you still developing? This would be really useful app.

@doodlemania2 Hey is the offer still there?

When I try to add the Prometheus url http://localhost:9090/metrics to Grafana I get the error

Unknown error during query transaction. Please check JS console logs.

Am I missing something?

I also get "This server's IP is blacklisted :SpamCop" on all my domains.

@girish
df -h output

du -hcs /* output

du -hcs /var/lib/docker/overlay2 output

@subven I have 32GB RAM.
/var/log size 214MB
/var/backups size 1.5MB

@girish Looks like its not old images.

Here is the output of du -hcs /*. I also have raid on /mnt/md0 so you can ignore that.

@girish Not old backups because I never backed up locally. However I saw /var/lib/docker/overlay2 has a size of 83GB.

@atrilahiji I don't quite get what you mean I was hiding all my app names if thats what you wanted to know.

Is it normal for Cloudron to take 81GB of storage space?

@doodlemania2 I was just thinking what to do with unused Cloudron server storage. This seems to be a wonderful idea. But I have no idea about app packaging.

@murgero I think it's not suitable for temporary storage. You have to build up your node reputation which could take 1 or 2 months. Earning depends on how much the user downloads. You get per TB $1.5/mo for storage. Egress if user downloads 1 TB = $20.

https://documentation.storj.io/setup/cli/storage-node

I think it would be nice to be able to share some unused storage space and earn some

@nebulon The problem is fixed now. I was just not able to go in the AppStore view. It only showed the loading circle. And on settings, it told me to add a new cloudron.io account. The Cloudron was running for 1 month and all setup completed.