pymongo - Unable to connect to mongodb running on EC2

Question

I am connecting to a mongodb server on EC2. The mongo collections require authentication to connect.

I tried everything but I am getting the following error and can't seem to correct it.

from pymongo import MongoClient

mongo_username = "username"
mongo_password = "password"
ssh_user = "user"
ssh_address = "ec2-**********.amazonaws.com"
ssh_port = 22
private_key = "path/to/key/mykey.pem"

def connect_to_mongo():
   try:
        client = MongoClient("mongodb://"+mongo_username+":"+mongo_password+"@" + ssh_address, ssl = True, ssl_keyfile = private_key)
        db = client.myDB

        #Should 'admin' be there or 'myDB'? 'admin' at least get if(auth) passed, while 'myDB' doesn't 
        auth = client.admin.authenticate(mongo_username,mongo_password) 

        if(auth):
                print "MongoDB connection successful"
                col = db.myCollection.count()
        else:
                print "MongoDB authentication failure: Please check the username or password"

        client.close()

   except Exception as e:
        print "MongoDB connection failure: Please check the connection details"
        print e

if __name__ == "__main__":
    connect_to_mongo()

Output :

MongoDB connection successful
MongoDB connection failure: Please check the connection details
SSL handshake failed: EOF occurred in violation of protocol (_ssl.c:590)

Answer 1

EC2 will close 27017 port by default. Create the in-bound rule as described here and here.

Answer 2

I tried all the options and finally this worked.

client = MongoClient("mongodb://" + ssh_address+":27017") # No private key passing 
auth = client.myDB.authenticate(mongo_username,mongo_password) # Authenticate to myDB and not admin
db = client.myDB

So basically I don't need to pass a private key (which is required when doing ssh over to the EC2) since the port was already opened for all incoming IPs ( I guess this was an important fact that I should have known and posted in the question).

Also I was trying to authenticate via the admin DB, which I shouldn't have done because I was given access to myDB only.