Freezer: mismatch in backup-name between backup and restore ?

[Maffioletti Sergio]

 $ freezer-agent --version
7.1.0

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial

Running backup towards in-house OpenStack/Swift installation.

Backup:
$ freezer-agent --path-to-backup "/projects/" --container backup_projects --storage swift -d --timeout 240 --max-segment-size 1073741824 --log-file /var/tmp/freezer.log --engine rsync --log-dir /var/tmp --backup-name projects

Info:
$ freezer-agent --action info --container backup_projects
+-----------------+-------+--------------+
| Container | Size | Object Count |
+-----------------+-------+--------------+
| backup_projects | 11 GB | 19 |
+-----------------+-------+--------------+

but when I try to restore the backup:
$ freezer-agent --action restore --container backup_projects --storage swift --restore-abs-path /tmp/restore --backup-name projects --log-file /var/tmp/freezer_restore.log
Critical Error: No matching backup name "monitor001_projects" found

even if I try to explicitly prefix the hostname to the backup name like:
$ freezer-agent --action restore --container backup_projects --storage swift --restore-abs-path /tmp/restore --backup-name monitor001_projects --log-file /var/tmp/freezer_restore.log
Critical Error: No matching backup name "monitor001_monitor001_projects" found

am I missing something ?
here's the content of the restore log:
```
2019-06-29 16:36:34.085 3863 INFO freezer.main [-] Begin freezer agent process with args: ['/usr/local/bin/freezer-agent', '--action', 'restore', '--container', 'backup_projects', '--storage', 'swift', '--restore-abs-path', '/tmp/restore', '--backup-name', 'projects', '--log-file', '/var/tmp/freezer_restore.log', '-d']
2019-06-29 16:36:34.085 3863 INFO freezer.main [-] log file at /var/tmp/freezer_restore.log
2019-06-29 16:36:34.085 3863 INFO freezer.openstack.osclients [-] Authenticating with Keystone version: 2.0, auth_url: https://sanitized_aut_point:5000/v2.0, username: sanitized_user_name, project: sanitized_project_name
2019-06-29 16:36:34.117 3863 DEBUG keystoneclient.auth.identity.v2 [-] Making authentication request to https://sanitized_aut_point:5000/v2.0/tokens get_auth_ref /usr/local/lib/python2.7/dist-packages/keystoneclient/auth/identity/v2.py:85
2019-06-29 16:36:34.305 3863 DEBUG swiftclient [-] REQ: curl -i https://sanitized_aut_point:8080/v1/AUTH_sanitized_aut?format=json -X GET -H "Accept-Encoding: gzip" -H "X-Auth-Token: a8a7e4546f644078..." http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:180
2019-06-29 16:36:34.306 3863 DEBUG swiftclient [-] RESP STATUS: 200 OK http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:181
2019-06-29 16:36:34.306 3863 DEBUG swiftclient [-] RESP HEADERS: {u'X-Account-Storage-Policy-Replica-2-Object-Count': u'5775', u'Content-Length': u'713', u'X-Account-Meta-Quota-Bytes': u'10995116277760', u'x-account-project-domain-id': u'_unknown', u'X-Account-Object-Count': u'5775', u'X-Account-Storage-Policy-Replica-2-Bytes-Used': u'1834135357364', u'X-Account-Storage-Policy-Replica-2-Container-Count': u'12', u'X-Timestamp': u'1465975022.48877', u'X-Trans-Id': u'txc7a06979c43c4bf693baf-005d179392', u'Date': u'Sat, 29 Jun 2019 16:36:34 GMT', u'X-Account-Bytes-Used': u'1834135357364', u'X-Account-Container-Count': u'12', u'Content-Type': u'application/json; charset=utf-8', u'Accept-Ranges': u'bytes'} http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:182
2019-06-29 16:36:34.307 3863 DEBUG swiftclient [-] RESP BODY: [{"count": 154, "bytes": 161483458008, "name": "backup_archive"}, {"count": 0, "bytes": 0, "name": "backup_bbvolume"}, {"count": 0, "bytes": 0, "name": "backup_data"}, {"count": 0, "bytes": 0, "name": "backup_homes"}, {"count": 3218, "bytes": 937082070010, "name": "backup_jwindh"}, {"count": 19, "bytes": 11978440183, "name": "backup_projects"}, {"count": 103, "bytes": 108006387533, "name": "backup_tumorprofiler"}, {"count": 1767, "bytes": 236693546324, "name": "bblab_data"}, {"count": 4, "bytes": 13082, "name": "data-public"}, {"count": 0, "bytes": 0, "name": "freezer_backups"}, {"count": 19, "bytes": 477422515, "name": "freezer_sm_backup"}, {"count": 491, "bytes": 378414019709, "name": "tumorprofiler"}] http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:186
2019-06-29 16:36:34.313 3863 INFO freezer.openstack.osclients [-] Authenticating with Keystone version: 2.0, auth_url: https://sanitized_aut_point:5000/v2.0, username: sanitized_user_name, project: sanitized_project_name
2019-06-29 16:36:34.360 3863 INFO freezer.job [-] Validating args for the restore job.
2019-06-29 16:36:34.360 3863 INFO freezer.main [-] Job execution Started at: 2019-06-29 16:36:34
2019-06-29 16:36:34.360 3863 INFO freezer.job [-] Executing Restore...
2019-06-29 16:36:34.361 3863 INFO freezer.engine.engine [-] Creating restore path: /tmp/restore
2019-06-29 16:36:34.361 3863 INFO freezer.engine.engine [-] Restore path creation completed
2019-06-29 16:36:34.362 3863 DEBUG keystoneclient.auth.identity.v2 [-] Making authentication request to https://sanitized_aut_point:5000/v2.0/tokens get_auth_ref /usr/local/lib/python2.7/dist-packages/keystoneclient/auth/identity/v2.py:85
2019-06-29 16:36:34.557 3863 DEBUG swiftclient [-] REQ: curl -i https://sanitized_aut_point:8080/v1/AUTH_sanitized_aut/backup_projects?format=json&prefix=metadata/tar/monitor001_projects/&delimiter=/ -X GET -H "Accept-Encoding: gzip" -H "X-Auth-Token: 4e2a30f3ccaf4ff1..." http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:180
2019-06-29 16:36:34.558 3863 DEBUG swiftclient [-] RESP STATUS: 200 OK http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:181
2019-06-29 16:36:34.558 3863 DEBUG swiftclient [-] RESP HEADERS: {u'Content-Length': u'2', u'X-Container-Object-Count': u'26', u'Accept-Ranges': u'bytes', u'X-Storage-Policy': u'replica-2', u'Date': u'Sat, 29 Jun 2019 16:36:34 GMT', u'X-Timestamp': u'1561763900.26764', u'X-Trans-Id': u'txdb5c3ba4a286448b886a6-005d179392', u'X-Container-Bytes-Used': u'19318831265', u'Content-Type': u'application/json; charset=utf-8'} http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:182
2019-06-29 16:36:34.559 3863 DEBUG swiftclient [-] RESP BODY: [] http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:186
2019-06-29 16:36:34.559 3863 ERROR freezer.main [-] No matching backup name "monitor001_projects" found: IndexError: No matching backup name "monitor001_projects" found
2019-06-29 16:36:34.559 3863 ERROR freezer.main Traceback (most recent call last):
2019-06-29 16:36:34.559 3863 ERROR freezer.main File "/usr/local/lib/python2.7/dist-packages/freezer/main.py", line 271, in main
2019-06-29 16:36:34.559 3863 ERROR freezer.main freezer_main(backup_args)
2019-06-29 16:36:34.559 3863 ERROR freezer.main File "/usr/local/lib/python2.7/dist-packages/freezer/main.py", line 138, in freezer_main
2019-06-29 16:36:34.559 3863 ERROR freezer.main return run_job(backup_args, storage)
2019-06-29 16:36:34.559 3863 ERROR freezer.main File "/usr/local/lib/python2.7/dist-packages/freezer/main.py", line 151, in run_job
2019-06-29 16:36:34.559 3863 ERROR freezer.main response = freezer_job.execute()
2019-06-29 16:36:34.559 3863 ERROR freezer.main File "/usr/local/lib/python2.7/dist-packages/freezer/job.py", line 393, in execute
2019-06-29 16:36:34.559 3863 ERROR freezer.main backup_media=conf.mode)
2019-06-29 16:36:34.559 3863 ERROR freezer.main File "/usr/local/lib/python2.7/dist-packages/freezer/engine/engine.py", line 252, in restore
2019-06-29 16:36:34.559 3863 ERROR freezer.main recent_to_date=recent_to_date)
2019-06-29 16:36:34.559 3863 ERROR freezer.main File "/usr/local/lib/python2.7/dist-packages/freezer/storage/base.py", line 101, in get_latest_level_zero_increments
2019-06-29 16:36:34.559 3863 ERROR freezer.main raise IndexError(err_msg)
2019-06-29 16:36:34.559 3863 ERROR freezer.main IndexError: No matching backup name "monitor001_projects" found
2019-06-29 16:36:34.559 3863 ERROR freezer.main
2019-06-29 16:36:34.560 3863 CRITICAL freezer.main [-] Run freezer agent process unsuccessfully: IndexError: No matching backup name "monitor001_projects" found
2019-06-29 16:36:34.560 3863 CRITICAL freezer.main [-] Critical Error: No matching backup name "monitor001_projects" found
: IndexError: No matching backup name "monitor001_projects" found
```