airflow docker 源码
airflow docker 代码
文件路径:/airflow/providers/docker/hooks/docker.py
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations
from typing import Any
from docker import APIClient # type: ignore[attr-defined]
from docker.constants import DEFAULT_TIMEOUT_SECONDS # type: ignore[attr-defined]
from docker.errors import APIError # type: ignore[attr-defined]
from airflow.exceptions import AirflowException
from airflow.hooks.base import BaseHook
from airflow.utils.log.logging_mixin import LoggingMixin
class DockerHook(BaseHook, LoggingMixin):
"""
Interact with a Docker Daemon or Registry.
:param docker_conn_id: The :ref:`Docker connection id <howto/connection:docker>`
where credentials and extra configuration are stored
"""
conn_name_attr = 'docker_conn_id'
default_conn_name = 'docker_default'
conn_type = 'docker'
hook_name = 'Docker'
@staticmethod
def get_ui_field_behaviour() -> dict[str, Any]:
"""Returns custom field behaviour"""
return {
"hidden_fields": ['schema'],
"relabeling": {
'host': 'Registry URL',
'login': 'Username',
},
}
def __init__(
self,
docker_conn_id: str | None = default_conn_name,
base_url: str | None = None,
version: str | None = None,
tls: str | None = None,
timeout: int = DEFAULT_TIMEOUT_SECONDS,
) -> None:
super().__init__()
if not base_url:
raise AirflowException('No Docker base URL provided')
if not version:
raise AirflowException('No Docker API version provided')
if not docker_conn_id:
raise AirflowException('No Docker connection id provided')
conn = self.get_connection(docker_conn_id)
if not conn.host:
raise AirflowException('No Docker URL provided')
if not conn.login:
raise AirflowException('No username provided')
extra_options = conn.extra_dejson
self.__base_url = base_url
self.__version = version
self.__tls = tls
self.__timeout = timeout
if conn.port:
self.__registry = f"{conn.host}:{conn.port}"
else:
self.__registry = conn.host
self.__username = conn.login
self.__password = conn.password
self.__email = extra_options.get('email')
self.__reauth = extra_options.get('reauth') != 'no'
def get_conn(self) -> APIClient:
client = APIClient(
base_url=self.__base_url, version=self.__version, tls=self.__tls, timeout=self.__timeout
)
self.__login(client)
return client
def __login(self, client) -> None:
self.log.debug('Logging into Docker')
try:
client.login(
username=self.__username,
password=self.__password,
registry=self.__registry,
email=self.__email,
reauth=self.__reauth,
)
self.log.debug('Login successful')
except APIError as docker_error:
self.log.error('Docker login failed: %s', str(docker_error))
raise AirflowException(f'Docker login failed: {docker_error}')
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