Back up a path to a encrypted, gziped, tar file.
Provide encryption password in environment variable ENCRYPT_PASSWORD.
If desired, a tar exclude pattern file can be provided. Set the path
in EXCLUDE_PATTERN_FILE and make sure that path is bound into the
container.
Makes use of rotate-backups.py.
docker run -e 'ENCRYPT_PASSWORD=XXXXX' -e NAME='some_name -v /path/to/backup:/backup -v /some/output/path:/output -it muccg/tar-backup:latest