fuel-web/nailgun/nailgun/orchestrator/stages.py
Ryan Moe 2b0242f645 Resolve tasks by role tags
This commit switching tasks resolution approach to the tags based one.
Tag - minimal unit what's necessary only for task resolution and can be
mapped to the node through the role interface only. Each role provides set
of tags in its 'tags' field and may be modified via role API. Tag may be
created separately via tag API, but, this tag can not be used unless it's
stuck to the role.

Change-Id: Icd78fd124997c8aafb07964eeb8e0f7dbb1b1cd2
Implements: blueprint role-decomposition
2016-11-17 18:07:30 +03:00

52 lines
1.8 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2014 Mirantis, Inc.
#
# 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.
import itertools
from nailgun.orchestrator import plugins_serializers
from nailgun.orchestrator.priority_serializers import PriorityStrategy
def stage_serialize(serializer, graph_tasks):
"""Serialize tasks for given stage
:param serializer: plugins_serializers.BasePluginDeploymentHooksSerializer
:param graph_tasks: list of tasks
"""
tasks = list(itertools.chain(
serializer.serialize_begin_tasks(),
graph_tasks,
serializer.serialize_end_tasks()))
PriorityStrategy().one_by_one(tasks)
return tasks
def pre_deployment_serialize(orchestrator_graph, cluster, nodes,
resolver=None):
graph_tasks = orchestrator_graph.pre_tasks_serialize(nodes)
return stage_serialize(
plugins_serializers.PluginsPreDeploymentHooksSerializer(
cluster, nodes, resolver=resolver), graph_tasks)
def post_deployment_serialize(orchestrator_graph, cluster, nodes,
resolver=None):
graph_tasks = orchestrator_graph.post_tasks_serialize(nodes)
return stage_serialize(
plugins_serializers.PluginsPostDeploymentHooksSerializer(
cluster, nodes, resolver=resolver), graph_tasks)