Python Backups.create方法代碼示例

# 需要導入模塊: from bakthat.models import Backups [as 別名]
# 或者: from bakthat.models.Backups import create [as 別名]
    def sync(self):
        """Draft for implementing bakthat clients (hosts) backups data synchronization.

        Synchronize Bakthat sqlite database via a HTTP POST request.

        Backups are never really deleted from sqlite database, we just update the is_deleted key.

        It sends the last server sync timestamp along with data updated since last sync.
        Then the server return backups that have been updated on the server since last sync.

        On both sides, backups are either created if they don't exists or updated if the incoming version is newer.
        """
        log.debug("Start syncing")

        self.register()

        last_sync_ts = Config.get_key("sync_ts", 0)
        to_insert_in_mongo = [b._data for b in Backups.search(last_updated_gt=last_sync_ts)]
        data = dict(sync_ts=last_sync_ts, to_insert_in_mongo=to_insert_in_mongo)
        r_kwargs = self.request_kwargs.copy()
        log.debug("Initial payload: {0}".format(data))
        r_kwargs.update({"data": json.dumps(data)})
        r = requests.post(self.get_resource("backups/sync/status"), **r_kwargs)
        if r.status_code != 200:
            log.error("An error occured during sync: {0}".format(r.text))
            return

        log.debug("Sync result: {0}".format(r.json()))
        to_insert_in_bakthat = r.json().get("to_insert_in_bakthat")
        sync_ts = r.json().get("sync_ts")
        for newbackup in to_insert_in_bakthat:
            sqlite_backup = Backups.match_filename(newbackup["stored_filename"], newbackup["backend"])
            if sqlite_backup and newbackup["last_updated"] > sqlite_backup.last_updated:
                    log.debug("Upsert {0}".format(newbackup))
                    Backups.upsert(**newbackup)
            elif not sqlite_backup:
                log.debug("Create backup {0}".format(newbackup))
                Backups.create(**newbackup)

        Config.set_key("sync_ts", sync_ts)

        log.debug("Sync succcesful")

# 需要導入模塊: from bakthat.models import Backups [as 別名]
# 或者: from bakthat.models.Backups import create [as 別名]

#.........這裏部分代碼省略.........
                       backend=destination,
                       is_deleted=False)

    # Useful only when using bakmanager.io hook
    backup_key = key

    password = kwargs.get("password", os.environ.get("BAKTHAT_PASSWORD"))
    if password is None and prompt.lower() != "no":
        password = getpass("Password (blank to disable encryption): ")
        if password:
            password2 = getpass("Password confirmation: ")
            if password != password2:
                log.error("Password confirmation doesn't match")
                return

    if not compress:
        log.info("Compression disabled")
        outname = filename
        with open(outname) as outfile:
            backup_data["size"] = os.fstat(outfile.fileno()).st_size
        bakthat_compression = False

    # Check if the file is not already compressed
    elif mimetypes.guess_type(arcname) == ('application/x-tar', 'gzip'):
        log.info("File already compressed")
        outname = filename

        # removing extension to reformat filename
        new_arcname = re.sub(r'(\.t(ar\.)?gz)', '', arcname)
        stored_filename = backup_file_fmt.format(new_arcname, date_component)

        with open(outname) as outfile:
            backup_data["size"] = os.fstat(outfile.fileno()).st_size

        bakthat_compression = False
    else:
        # If not we compress it
        log.info("Compressing...")

        with tempfile.NamedTemporaryFile(delete=False) as out:
            with closing(tarfile.open(fileobj=out, mode="w:gz")) as tar:
                tar.add(filename, arcname=arcname, exclude=_exclude)
            outname = out.name
            out.seek(0)
            backup_data["size"] = os.fstat(out.fileno()).st_size
        bakthat_compression = True

    bakthat_encryption = False
    if password:
        bakthat_encryption = True
        log.info("Encrypting...")
        encrypted_out = tempfile.NamedTemporaryFile(delete=False)
        encrypt_file(outname, encrypted_out.name, password)
        stored_filename += ".enc"

        # We only remove the file if the archive is created by bakthat
        if bakthat_compression:
            os.remove(outname)  # remove non-encrypted tmp file

        outname = encrypted_out.name

        encrypted_out.seek(0)
        backup_data["size"] = os.fstat(encrypted_out.fileno()).st_size

    # Handling tags metadata
    if isinstance(tags, list):
        tags = " ".join(tags)

    backup_data["tags"] = tags

    backup_data["metadata"] = dict(is_enc=bakthat_encryption,
                                   client=socket.gethostname())
    stored_filename = os.path.join(os.path.dirname(kwargs.get("custom_filename", "")), stored_filename)
    backup_data["stored_filename"] = stored_filename

    access_key = storage_backend.conf.get("access_key")
    container_key = storage_backend.conf.get(storage_backend.container_key)
    backup_data["backend_hash"] = hashlib.sha512(access_key + container_key).hexdigest()

    log.info("Uploading...")
    storage_backend.upload(stored_filename, outname, s3_reduced_redundancy=s3_reduced_redundancy)

    # We only remove the file if the archive is created by bakthat
    if bakthat_compression or bakthat_encryption:
        os.remove(outname)

    log.debug(backup_data)

    # Insert backup metadata in SQLite
    backup = Backups.create(**backup_data)

    BakSyncer(conf).sync_auto()

    # bakmanager.io hook, enable with -k/--key paramter
    if backup_key:
        bakmanager_hook(conf, backup_data, backup_key)

    events.on_backup(session_id, backup)

    return backup

# 需要導入模塊: from bakthat.models import Backups [as 別名]
# 或者: from bakthat.models.Backups import create [as 別名]

#.........這裏部分代碼省略.........

    :rtype: dict
    :return: A dict containing the following keys: stored_filename, size, metadata, backend and filename.

    """
    conf = kwargs.get("conf", None)
    storage_backend = _get_store_backend(conf, destination, profile)
    backup_file_fmt = "{0}.{1}.tgz"

    log.info("Backing up " + filename)
    arcname = filename.strip('/').split('/')[-1]
    now = datetime.utcnow()
    date_component = now.strftime("%Y%m%d%H%M%S")
    stored_filename = backup_file_fmt.format(arcname, date_component)

    backup_date = int(now.strftime("%s"))
    backup_data = dict(filename=kwargs.get("custom_filename", arcname),
                       backup_date=backup_date,
                       last_updated=backup_date,
                       backend=destination,
                       is_deleted=False)

    password = kwargs.get("password")
    if password is None and prompt.lower() != "no":
        password = getpass("Password (blank to disable encryption): ")
        if password:
            password2 = getpass("Password confirmation: ")
            if password != password2:
                log.error("Password confirmation doesn't match")
                return

    # Check if the file is not already compressed
    if mimetypes.guess_type(arcname) == ('application/x-tar', 'gzip'):
        log.info("File already compressed")
        outname = filename

        # removing extension to reformat filename
        new_arcname = re.sub(r'(\.t(ar\.)?gz)', '', arcname)
        stored_filename = backup_file_fmt.format(new_arcname, date_component)

        with open(outname) as outfile:
            backup_data["size"] = os.fstat(outfile.fileno()).st_size

        bakthat_compression = False
    else:
        # If not we compress it
        log.info("Compressing...")
        with tempfile.NamedTemporaryFile(delete=False) as out:
            with closing(tarfile.open(fileobj=out, mode="w:gz")) as tar:
                tar.add(filename, arcname=arcname)
            outname = out.name
            out.seek(0)
            backup_data["size"] = os.fstat(out.fileno()).st_size
        bakthat_compression = True

    bakthat_encryption = False
    if password:
        bakthat_encryption = True
        log.info("Encrypting...")
        encrypted_out = tempfile.NamedTemporaryFile(delete=False)
        encrypt_file(outname, encrypted_out.name, password)
        stored_filename += ".enc"

        # We only remove the file if the archive is created by bakthat
        if bakthat_compression:
            os.remove(outname)  # remove non-encrypted tmp file

        outname = encrypted_out.name

        encrypted_out.seek(0)
        backup_data["size"] = os.fstat(encrypted_out.fileno()).st_size

    # Handling tags metadata
    if isinstance(tags, list):
        tags = " ".join(tags)

    backup_data["tags"] = tags

    backup_data["metadata"] = dict(is_enc=bakthat_encryption)
    backup_data["stored_filename"] = stored_filename

    access_key = storage_backend.conf.get("access_key")
    container_key = storage_backend.conf.get(storage_backend.container_key)
    backup_data["backend_hash"] = hashlib.sha512(access_key + container_key).hexdigest()

    log.info("Uploading...")
    storage_backend.upload(stored_filename, outname)

    # We only remove the file if the archive is created by bakthat
    if bakthat_encryption:
        os.remove(outname)

    log.debug(backup_data)

    # Insert backup metadata in SQLite
    Backups.create(**backup_data)

    BakSyncer(conf).sync_auto()

    return backup_data