How to install ODK Central on Synology NAS with Docker

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The key error seems to be

ERROR: for mail  Cannot start service mail: Bind mount failed: '/volume1/homes/dkonan/central/files/dkim/config' does not exists
ERROR: Encountered errors while bringing up the project.

Your dkim folder should have the following structure:

  • config folder
  • rsa.private folder
  • config.disabled file

For some reason, it sounds like you don't have the config folder. Try creating it and trying another docker-compose up -d.