Подключение сервера базы данных и создание CSV-файла с использованием SSHTunnel - PullRequest
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Подключение сервера базы данных и создание CSV-файла с использованием SSHTunnel

0 голосов
/ 17 ноября 2018

Я получаю эту ошибку каждый раз, когда пытаюсь подключиться к серверу.

BaseSSHTunnelForwarderError: Не удалось установить сеанс для шлюза SSH 

def make_JSON_creds(filename="./.usercreds.json"):
"""Creates a JSON credentials file with name <filename>"""

# Get keys (without them showing up on screen)
print("Enter the following credentials:")
SSH_USERNAME = getpass("SSH USERNAME")
SSH_PRIVATE_KEY = getpass("SSH PASSWORD")
DB_USERNAME = getpass("DATABASE ACCESS USERNAME")
DB_PASSWORD = getpass("DATABASE ACCESS PASSWORD")

# Write to file.  TODO: Encrypt this.
with open(filename, "w") as the_file:
    json.dump({"SSH_USERNAME" : SSH_USERNAME, \
        "SSH_PRIVATE_KEY" : SSH_PRIVATE_KEY,  \
        "DB_USERNAME" : DB_USERNAME,          \
        "DB_PASSWORD" : DB_PASSWORD}, the_file)


def get_JSON_creds(filename="./.usercreds.json", ask=True):
    """Loads JSON credentials from a credentials file.
       Creates the file if it doesn't exist.
        Returns an OAuth1 header object.
    """
# Make the file if it isn't there.  Or if you just want to.
if ask or not os.path.isfile(filename):  # Note: This is technically unsafe
    make_JSON_creds(filename)

# Then it's there.  Get it.
with open(filename, "r") as the_file:
    creds = json.load(the_file)

return(creds)

#SSH tunnelling with port forwarding to database server

def query(q):
     with SSHTunnelForwarder(
          (host, 22),
          ssh_username=ssh_username,
          ssh_password=ssh_private_key,
          remote_bind_address=(localhost, 3306),
     ) as server:
          conn = db.connect(host=localhost,
          port=server.local_bind_port,
          user=user,
          passwd=password,
          db=database)
          return pd.read_sql_query(q, conn)


creds = get_JSON_creds(filename="./.usercreds_tide.json", ask=True)
# ssh variables
host = 'Hostname'
localhost = '127.0.0.1'
ssh_username = creds.get("SSH_USERNAME").strip()
ssh_private_key = creds.get("SSH_PRIVATE_KEY").strip()

# database variables
user=creds.get("DB_USERNAME").strip()
password=creds.get("DB_PASSWORD").strip()
database='tidal'


df = query("SELECT comm.Art,comm.Text,COUNT(comm.Text), 
comm.Info,commurl.Title,commurl.Source FROM comm INNER JOIN commurl ON 
comm.Id=commurl.ID GROUP BY Id HAVING COUNT(comm.Text)>100")

Ошибка:

2018-11-16 23: 10: 01,480 | ОШИБКА | Не удалось подключиться к шлюзу lrs-abc.pqr.sot.in:22: 10060

BaseSSHTunnelForwarderError Traceback (последний вызов был последним)

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