Create a Docker container which will mount your Amazon Cloud Drive with FUSE, and allow remote access to its contents via the rsync daemon.
Most of the setup is automated in the Dockerfile and in two helper scripts. But until the oauth authentication is automated, you need to run the helper scripts yourself, because they are interactive: you will be prompted to open a web browser and authenticate with your Amazon credentials.
The first thing you need to do is setup the .env file, which provides configuration for the scripts which run in your Docker container.
Follow these steps to set up a "Security Profile," with will give you a CLIENT_ID and CLIENT_SECRET. https://acd-cli.readthedocs.io/en/latest/authorization.html
Alternatively, you can follow the "Appspot" directions, and copy your oauth_data file into the resources folder.
Create a file name .env containing:
# These are from your Amazon "Security Profile"
CLIENT_ID=amzn1.application-oa2-client._UNIQUE_CODE_
CLIENT_SECRET=_ANOTHER_UNIQUE_CODE_
# Rsync will request this password for authentication
RSYNC_PASSWORD=_A_PASSWORD_OF_YOUR_CHOICE_
# Optional: restrict access by IP and/or hostname. For details, see the
# "hosts allow" section of the "rsyncd.conf" man page.
RSYNC_HOSTS_ALLOW=_IPS_AND_OR_HOSTNAMES_
# Optional, but recommended: serve just a subdirectory from Amazon Drive.
# This has the added benefit of preventing rsync from starting when your
# Amazon Drive isn't mounted.
AMAZON_DRIVE_SUBDIRECTORY=_SUBDIRECTORY_PATH_
Start the container in the background.
docker-compose up -d
Enter the container:
docker exec -it acdrsync_acd_rsync_1 /bin/sh
Within the container, run these scripts:
/resources/setup_and_mount.sh && resources/setup_and_start_rsync.sh
Follow the instructions, and your cloud drive should be mounted, and rsync should provide access to its contents!
After your container is running and configured, you can send files to Amazon Cloud Drive via rsync. Note that the rsync protocol isn't encrypted, so if you need better security, you should wrap rsync in an SSH tunnel.
Note that rsync typically depends on the last modified time of files to determine whether a file has been changed. Unfortunately, Amazon Cloud Drive doesn't store last modified times. As a workaround, you can tell rsync to only compare file sizes. Unfortunately, this means that if a file is modified but its file size doesn't change, it won't be re-copied by rsync.
rsync --recursive --size-only -P SOURCE rsyncclient@HOSTNAME::amazon
When you're prompted for a password, supply the RSYNC_PASSWORD you choose above.
It's inconvenient to have to open a web browser to authenticate with Amazon. I plan to automate this step ASAP!
After about a day, files stop copying. I'm investigating why this is the case.