255 lines
11 KiB
Python
255 lines
11 KiB
Python
# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import falcon
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import json
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import threading
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import traceback
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from drydock_provisioner import policy
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from drydock_provisioner import error as errors
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import drydock_provisioner.objects.task as obj_task
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from .base import StatefulResource
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class TasksResource(StatefulResource):
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def __init__(self, orchestrator=None, **kwargs):
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super(TasksResource, self).__init__(**kwargs)
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self.orchestrator = orchestrator
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@policy.ApiEnforcer('physical_provisioner:read_task')
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def on_get(self, req, resp):
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try:
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task_id_list = [str(x.get_id()) for x in self.state_manager.tasks]
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resp.body = json.dumps(task_id_list)
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resp.status = falcon.HTTP_200
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except Exception as ex:
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self.error(req.context, "Unknown error: %s\n%s" % (str(ex), traceback.format_exc()))
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self.return_error(resp, falcon.HTTP_500, message="Unknown error", retry=False)
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@policy.ApiEnforcer('physical_provisioner:create_task')
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def on_post(self, req, resp):
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# A map of supported actions to the handlers for tasks for those actions
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supported_actions = {
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'validate_design': TasksResource.task_validate_design,
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'verify_site': TasksResource.task_verify_site,
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'prepare_site': TasksResource.task_prepare_site,
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'verify_node': TasksResource.task_verify_node,
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'prepare_node': TasksResource.task_prepare_node,
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'deploy_node': TasksResource.task_deploy_node,
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'destroy_node': TasksResource.task_destroy_node,
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}
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try:
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ctx = req.context
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action not in supported_actions:
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self.error(req,context, "Unsupported action %s" % action)
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self.return_error(resp, falcon.HTTP_400, message="Unsupported action %s" % action, retry=False)
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else:
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supported_actions.get(action)(self, req, resp)
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except Exception as ex:
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self.error(req.context, "Unknown error: %s\n%s" % (str(ex), traceback.format_exc()))
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self.return_error(resp, falcon.HTTP_500, message="Unknown error", retry=False)
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@policy.ApiEnforcer('physical_provisioner:validate_design')
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def task_validate_design(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'validate_design':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_validate_design" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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@policy.ApiEnforcer('physical_provisioner:verify_site')
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def task_verify_site(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'verify_site':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_verify_site" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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@policy.ApiEnforcer('physical_provisioner:prepare_site')
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def task_prepare_site(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'prepare_site':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_prepare_site" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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@policy.ApiEnforcer('physical_provisioner:verify_node')
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def task_verify_node(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'verify_node':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_verify_node" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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@policy.ApiEnforcer('physical_provisioner:prepare_node')
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def task_prepare_node(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'prepare_node':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_prepare_node" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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@policy.ApiEnforcer('physical_provisioner:deploy_node')
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def task_deploy_node(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'deploy_node':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_deploy_node" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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@policy.ApiEnforcer('physical_provisioner:destroy_node')
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def task_destroy_node(self, req, resp):
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json_data = self.req_json(req)
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action = json_data.get('action', None)
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if action != 'destroy_node':
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self.error(req.context, "Task body ended up in wrong handler: action %s in task_destroy_node" % action)
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self.return_error(resp, falcon.HTTP_500, message="Error - misrouted request", retry=False)
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try:
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task = self.create_task(json_data)
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resp.body = json.dumps(task.to_dict())
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resp.append_header('Location', "/api/v1.0/tasks/%s" % str(task.task_id))
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resp.status = falcon.HTTP_201
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except errors.InvalidFormat as ex:
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self.error(req.context, ex.msg)
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self.return_error(resp, falcon.HTTP_400, message=ex.msg, retry=False)
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def create_task(self, task_body):
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"""
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Given the parsed body of a create task request, create the task
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and start it in a thread
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:param dict task_body: Dict representing the JSON body of a create task request
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action - The action the task will execute
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design_id - The design context the task will execute in
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node_filter - A filter on which nodes will be affected by the task. The result is
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an intersection of
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applying all filters
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node_names - A list of node hostnames
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rack_names - A list of rack names that contain the nodes
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node_tags - A list of tags applied to the nodes
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:return: The Task object created
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"""
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design_id = task_body.get('design_id', None)
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node_filter = task_body.get('node_filter', None)
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action = task_body.get('action', None)
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if design_id is None or action is None:
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raise errors.InvalidFormat('Task creation requires fields design_id, action')
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task = self.orchestrator.create_task(obj_task.OrchestratorTask, design_id=design_id,
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action=action, node_filter=node_filter)
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task_thread = threading.Thread(target=self.orchestrator.execute_task, args=[task.get_id()])
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task_thread.start()
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return task
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class TaskResource(StatefulResource):
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def __init__(self, orchestrator=None, **kwargs):
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super(TaskResource, self).__init__(**kwargs)
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self.authorized_roles = ['user']
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self.orchestrator = orchestrator
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def on_get(self, req, resp, task_id):
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ctx = req.context
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policy_action = 'physical_provisioner:read_task'
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try:
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if not self.check_policy(policy_action, ctx):
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self.access_denied(req, resp, policy_action)
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return
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task = self.state_manager.get_task(task_id)
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if task is None:
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self.info(req.context, "Task %s does not exist" % task_id )
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self.return_error(resp, falcon.HTTP_404, message="Task %s does not exist" % task_id, retry=False)
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return
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resp.body = json.dumps(task.to_dict())
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resp.status = falcon.HTTP_200
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except Exception as ex:
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self.error(req.context, "Unknown error: %s" % (str(ex)))
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self.return_error(resp, falcon.HTTP_500, message="Unknown error", retry=False)
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