Is there an equivalent function in PyMongo
or mongoengine
to MongoDB's mongodump
? I can't seem to find anything in the docs.
Use case: I need to periodically backup a remote mongo database. The local machine is a production server that does not have mongo installed, and I do not have admin rights, so I can't use subprocess
to call mongodump
. I could install the mongo client locally on a virtualenv, but I'd prefer an API call.
Thanks a lot :-).
For my relatively small small database, I eventually used the following solution. It's not really suitable for big or complex databases, but it suffices for my case. It dumps all documents as a json to the backup directory. It's clunky, but it does not rely on other stuff than pymongo.
from os.path import join
import pymongo
from bson.json_utils import dumps
def backup_db(backup_db_dir):
client = pymongo.MongoClient(host=<host>, port=<port>)
database = client[<db_name>]
authenticated = database.authenticate(<uname>,<pwd>)
assert authenticated, "Could not authenticate to database!"
collections = database.collection_names()
for i, collection_name in enumerate(collections):
col = getattr(database,collections[i])
collection = col.find()
jsonpath = collection_name + ".json"
jsonpath = join(backup_db_dir, jsonpath)
with open(jsonpath, 'wb') as jsonfile:
jsonfile.write(dumps(collection))