bb6dd45ec4
* Asynchronous tasks * Separate stateless task executors * Notification of task executors via RabbitMQ TODO: * DB transaction management * Analyzing graph of tasks to identify what should be started * Thorough automated tests Partially implements blueprint: mistral-poc Partially implements blueprint: mistral-workflow-execution Partially implements blueprint: mistral-engine-ha Change-Id: I022e1b73b9a3c58f1fbc259ba3e5995acd2bf6c3
93 lines
2.5 KiB
Python
93 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright 2013 - Mirantis, Inc.
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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 sqlalchemy as sa
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import uuid
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from mistral.db.sqlalchemy import model_base as mb
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from mistral.db.sqlalchemy import types as st
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## Helpers
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def _generate_unicode_uuid():
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return unicode(str(uuid.uuid4()))
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def _id_column():
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return sa.Column(sa.String(36),
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primary_key=True,
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default=_generate_unicode_uuid)
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class Event(mb.MistralBase):
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"""Contains all info about event."""
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__tablename__ = 'events'
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__table_args__ = (
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sa.UniqueConstraint('name'),
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)
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id = _id_column()
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name = sa.Column(sa.String(80), nullable=False)
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pattern = sa.Column(sa.String(20), nullable=False)
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next_execution_time = sa.Column(sa.DateTime, nullable=False)
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class WorkflowExecution(mb.MistralBase):
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"""Contains info about particular workflow execution."""
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__tablename__ = 'workflow_executions'
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id = _id_column()
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workbook_name = sa.Column(sa.String(80))
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target_task = sa.Column(sa.String(80))
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state = sa.Column(sa.String(20))
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class Workbook(mb.MistralBase):
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"""Contains info about workbook (including definition in Mistral DSL)."""
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__tablename__ = 'workbooks'
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__table_args__ = (
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sa.UniqueConstraint('name'),
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)
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id = _id_column()
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name = sa.Column(sa.String(80), primary_key=True)
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definition = sa.Column(sa.String(), nullable=True)
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description = sa.Column(sa.String())
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tags = sa.Column(st.JsonListType())
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scope = sa.Column(sa.String())
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class Task(mb.MistralBase):
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"""Contains info about particular task."""
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__tablename__ = 'tasks'
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id = _id_column()
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name = sa.Column(sa.String(80))
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dependencies = sa.Column(st.JsonListType())
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workbook_name = sa.Column(sa.String(80))
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execution_id = sa.Column(sa.String(36))
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description = sa.Column(sa.String())
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action = sa.Column(st.JsonDictType())
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state = sa.Column(sa.String(20))
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tags = sa.Column(st.JsonListType())
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