Source code for renga.client
# -*- coding: utf-8 -*-
#
# Copyright 2017 - Swiss Data Science Center (SDSC)
# A partnership between École Polytechnique Fédérale de Lausanne (EPFL) and
# Eidgenössische Technische Hochschule Zürich (ETHZ).
#
# Licensed 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.
"""Python SDK client for Renga platform."""
import os
from .api import APIClient
[docs]class RengaClient(object):
"""A client for communicating with a Renga platform.
Example:
>>> import renga
>>> client = renga.RengaClient('http://localhost')
"""
def __init__(self, *args, **kwargs):
"""Create a Renga API client."""
self.api = APIClient(*args, **kwargs)
@classmethod
def from_env(cls, environment=None):
"""Return a client configured from environment variables.
.. envvar:: RENGA_ENDPOINT
The URL to the Renga platform.
.. envvar:: RENGA_ACCESS_TOKEN
An access token obtained from Renga authentication service.
Example:
>>> import renga
>>> client = renga.from_env()
"""
if not environment:
environment = os.environ
endpoint = environment.get('RENGA_ENDPOINT', '')
access_token = environment.get('RENGA_ACCESS_TOKEN')
client = cls(endpoint=endpoint, token={'access_token': access_token})
client._environment = environment
# FIXME temporary solution until the execution id is moved to the token
execution_id = environment.get('RENGA_VERTEX_ID')
if execution_id:
client.api.headers['Renga-Deployer-Execution'] = execution_id
return client
@property
def current_context(self):
"""Return the current context as defined in the environment.
.. envvar:: RENGA_CONTEXT_ID
The context identifier used by the REST API.
See the :doc:`context object documentation <context-object>` for
full details.
"""
env = getattr(self, '_environment', os.environ)
return self.contexts[env['RENGA_CONTEXT_ID']]
@property
def contexts(self):
"""An object for managing contexts on the server.
See the :doc:`contexts documentation <contexts>` for full details.
"""
from .models.deployer import ContextCollection
return ContextCollection(client=self)
@property
def projects(self):
"""An object for managing projects on the server.
See the :doc:`projects documentation <projects>` for full details.
"""
from .models.projects import ProjectCollection
return ProjectCollection(client=self)
@property
def buckets(self):
"""An object for managing buckets on the server.
See the :doc:`buckets documentation <buckets>` for full details.
"""
from .models.storage import BucketCollection
return BucketCollection(client=self)
from_env = RengaClient.from_env