Source code for airflow.providers.microsoft.winrm.operators.winrm
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from __future__ import annotations
import logging
from base64 import b64encode
from typing import TYPE_CHECKING, Sequence
from airflow.configuration import conf
from airflow.exceptions import AirflowException
from airflow.models import BaseOperator
from airflow.providers.microsoft.winrm.hooks.winrm import WinRMHook
if TYPE_CHECKING:
from airflow.utils.context import Context
# Hide the following error message in urllib3 when making WinRM connections:
# requests.packages.urllib3.exceptions.HeaderParsingError: [StartBoundaryNotFoundDefect(),
# MultipartInvariantViolationDefect()], unparsed data: ''
logging.getLogger("urllib3.connectionpool").setLevel(logging.ERROR)
[docs]class WinRMOperator(BaseOperator):
"""
WinRMOperator to execute commands on given remote host using the winrm_hook.
:param winrm_hook: predefined ssh_hook to use for remote execution
:param ssh_conn_id: connection id from airflow Connections
:param remote_host: remote host to connect
:param command: command to execute on remote host. (templated)
:param ps_path: path to powershell, `powershell` for v5.1- and `pwsh` for v6+.
If specified, it will execute the command as powershell script.
:param output_encoding: the encoding used to decode stout and stderr
:param timeout: timeout for executing the command.
"""
[docs] template_fields: Sequence[str] = ("command",)
[docs] template_fields_renderers = {"command": "powershell"}
def __init__(
self,
*,
winrm_hook: WinRMHook | None = None,
ssh_conn_id: str | None = None,
remote_host: str | None = None,
command: str | None = None,
ps_path: str | None = None,
output_encoding: str = "utf-8",
timeout: int = 10,
**kwargs,
) -> None:
super().__init__(**kwargs)
self.winrm_hook = winrm_hook
self.ssh_conn_id = ssh_conn_id
self.remote_host = remote_host
self.command = command
self.ps_path = ps_path
self.output_encoding = output_encoding
self.timeout = timeout
[docs] def execute(self, context: Context) -> list | str:
if self.ssh_conn_id and not self.winrm_hook:
self.log.info("Hook not found, creating...")
self.winrm_hook = WinRMHook(ssh_conn_id=self.ssh_conn_id)
if not self.winrm_hook:
raise AirflowException("Cannot operate without winrm_hook or ssh_conn_id.")
if self.remote_host is not None:
self.winrm_hook.remote_host = self.remote_host
if not self.command:
raise AirflowException("No command specified so nothing to execute here.")
return_code, stdout_buffer, stderr_buffer = self.winrm_hook.run(
command=self.command,
ps_path=self.ps_path,
output_encoding=self.output_encoding,
return_output=self.do_xcom_push,
)
if return_code == 0:
# returning output if do_xcom_push is set
enable_pickling = conf.getboolean("core", "enable_xcom_pickling")
if enable_pickling:
return stdout_buffer
return b64encode(b"".join(stdout_buffer)).decode(self.output_encoding)
stderr_output = b"".join(stderr_buffer).decode(self.output_encoding)
error_msg = f"Error running cmd: {self.command}, return code: {return_code}, error: {stderr_output}"
raise AirflowException(error_msg)