airflow.contrib.hooks.ssh_hook

Module Contents

class airflow.contrib.hooks.ssh_hook.SSHHook(ssh_conn_id=None, remote_host=None, username=None, password=None, key_file=None, port=None, timeout=10, keepalive_interval=30)[source]

Bases:airflow.hooks.base_hook.BaseHook

Hook for ssh remote execution using Paramiko. ref: https://github.com/paramiko/paramiko This hook also lets you create ssh tunnel and serve as basis for SFTP file transfer

Parameters

  • ssh_conn_id (str) – connection id from airflow Connections from where all the required parameters can be fetched like username, password or key_file. Thought the priority is given to the param passed during init

  • remote_host (str) – remote host to connect

  • username (str) – username to connect to the remote_host

  • password (str) – password of the username to connect to the remote_host

  • key_file (str) – key file to use to connect to the remote_host.

  • port (int) – port of remote host to connect (Default is paramiko SSH_PORT)

  • timeout (int) – timeout for the attempt to connect to the remote_host.

  • keepalive_interval (int) – send a keepalive packet to remote host every keepalive_interval seconds

get_conn(self)[source]

Opens a ssh connection to the remote host.

Return type

paramiko.client.SSHClient

__enter__(self)[source]
__exit__(self, exc_type, exc_val, exc_tb)[source]
get_tunnel(self, remote_port, remote_host='localhost', local_port=None)[source]

Creates a tunnel between two hosts. Like ssh -L <LOCAL_PORT>:host:<REMOTE_PORT>.

Parameters

  • remote_port (int) – The remote port to create a tunnel to

  • remote_host (str) – The remote host to create a tunnel to (default localhost)

  • local_port (int) – The local port to attach the tunnel to

Returns

sshtunnel.SSHTunnelForwarder object

create_tunnel(self, local_port, remote_port=None, remote_host='localhost')[source]