django backblaze b2 storage using b2sdk
django backblaze b2 storage using b2sdk (b2sdk is official backblaze python library)
The full documentation is at https://django-b2.readthedocs.io.
pip install django-b2
Add into your settings:
MEDIA_URL = '/media/' DEFAULT_FILE_STORAGE = 'django_b2.storage.B2Storage' # if used without django-tenant-schemas # DEFAULT_FILE_STORAGE = 'django_b2.tenant_storage.TenantB2Storage' # if used with django-tenant-schemas B2_APP_KEY_ID = 000xxxxxxxxxxxx000000000n B2_APP_KEY = keyvalue B2_BUCKET_NAME = bucketname # optional, see Usage (docs/usage.rst): B2_FORCE_UNIQUE = False # optional, see Usage (docs/usage.rst): MEDIA_ROOT = .. B2_LOCAL_MEDIA = .. # "", "M", "L", "ML"
Using outside of Django:
from django_b2.backblaze_b2 import BackBlazeB2 b2 = BackBlazeB2() b2.authorize("production", application_key_id, application_key) b2.set_bucket(bucket_name) with open(filename, 'rb') as f: b2.upload_file(filename, f) content = b2.download_file(filename) with open(filename2, 'wb') as f: f.write(content)
Django media storage (with storage.py) or general python access to BackBlaze B2 (without usage of storage.py).
Upload single file to B2 (call backblaze_b2.py as script; new in 0.2.0)
Backup a postgres database to B2 (use script pgtob2.sh; new in 0.2.0)
Optionally cache media files locally for immediate access or for long time faster access.
Does the code actually work?
source <YOURVIRTUALENV>/bin/activate (myenv) $ pip install -r requirements_test.txt (myenv) $ tox
Tools used in rendering this package:
new Django setting B2_FORCE_UNIQUE and new underlaying constructor parameter BackBlazeB2(force_unique=True)
B2Storage() initializes as the settings.DEFAULT_FILE_STORAGE if ‘B2Storage’ string is not inside can be used together with @override_settings(DEFAULT_FILE_STORAGE=’django.core.files.storage.FileSystemStorage’) see https://github.com/pyutil/django-b2/issues/4
lazy loading, to avoid running code during collectstatic,.. - https://github.com/pyutil/django-b2/issues/3
bugfix: upload on Windows, thx Same Weaver, https://github.com/pyutil/django-b2/issues/2
Linux abs filenames: leading “/” will be removed so we can use local abs names 1:1 to upload to b2 (in Windows: C:/.. is valid name)
can work with django-tenant schemas, tenant aware storage django_b2.tenant_storage.TenantB2Storage
older local media (see B2_LOCAL_MEDIA) can be cleared with management command b2_clear_local_media
B2_LOCAL_CACHE setting renamed to B2_LOCAL_MEDIA, possible values changed to =”ML”
0.3.0 (2020-02-08) - do not use
!! new B2_LOCAL_MEDIA setting was in 0.3.0 named incompatible as B2_LOCAL_CACHE=”FM”
B2_LOCAL_MEDIA setting to make a local copy of files. So you can have local instances backuped on backblaze.
B2_LOCAL_MEDIA prevents failures if the django application want immediately reopen the file (imagekits creating thumbnails, Wagtail is an example)
backblaze_b2.py can be called as script to upload single file.
pgtob2.sh script to backup postgres database
No code change. Minor docs changes.
First release on PyPI.
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