Hi all,
I’m running into a consistent issue with the Postiz app on Cloudron.
Even when simply loading the Postiz UI (e.g. /launches, /media, /agents, /settings), I get repeated errors like:
Failed to write image to cache ... mkdir '/app/code/apps/frontend/.next/cache/images'
ENOENT: no such file or directory
Cloudron mounts /app/code as read‑only, so the Next.js image optimizer cannot create this directory. This happens on every page load, not only during integrations.
When trying to add a LinkedIn Page, the OAuth flow completes, but the final step fails with:
LocalStorage.uploadSimple
Request failed with status code 403
It seems Postiz tries to upload the LinkedIn avatar/logo via the local upload endpoint, but the Cloudron package forces:
STORAGE_PROVIDER=local
in start.sh, so external storage (S3/R2) cannot be used even if configured in /app/data/env.
As a result:
- Next.js cannot write cached images (read‑only filesystem)
- LocalStorage uploads fail with 403
- Adding channels like LinkedIn Page becomes impossible
Am i on the right track here? Can someone else confirm what i described? What are workarounds or possible solutions to this? I really would like to use postiz via cloudron.
Thanks!
David