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Docker Backup to Amazon S3

Docker container that periodically backups files to Amazon S3 using s3cmd sync and cron.

This version deletes removed files into the backup. It should be used with a S3 bucket that supports versionning.


docker run -d [OPTIONS] m2i3/backup-to-s3


  • -e ACCESS_KEY=<AWS_KEY>: Your AWS key.
  • -e SECRET_KEY=<AWS_SECRET>: Your AWS secret.
  • -e S3_PATH=s3://<BUCKET_NAME>/<PATH>/: S3 Bucket name and path. Should end with trailing slash.
  • -v /path/to/backup:/data:ro: mount target local folder to container's data folder.

Optional parameters:

  • -e DATA_PATH=/data/: container's data folder. Default is /data/. Should end with trailing slash.
  • -e 'CRON_SCHEDULE=0 1 * * *': specifies when cron job starts (details). Default is 0 1 * * * (runs every day at 1:00 am).


docker run -d \
-e ACCESS_KEY=fakeawskey \
    -e SECRET_KEY=fakeawssecret \
    -e S3_PATH=s3://my-bucket/backup/ \
    -v /home/user/data:/data:ro     \    
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