python-tripleoclient/tripleoclient/workflows/scale.py
Emilien Macchi 16326a86c2 workflows/scale: re-use the deployment workbook to run Ansible
To avoid tasks duplications in the tripleo-common workbooks, let's
re-use the deployment workbook with the right parameters so we can avoid
all the config-download tasks.

This patch will reuse tripleo.deployment.v1.config_download_deploy with
the right parameters for a scale-down.

Depends-On: Ibc980e9162bf109de7e7ef338c9bd602174c8448
Change-Id: Ie8e15589197e9725a1cae2d29137f05fefa427c1
2019-05-08 21:21:44 +00:00

81 lines
2.7 KiB
Python

# Copyright 2016 Red Hat, Inc.
# All Rights Reserved.
#
# 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.
from __future__ import print_function
from tripleoclient import exceptions
from tripleoclient.workflows import base
def ansible_tear_down(clients, **workflow_input):
workflow_client = clients.workflow_engine
tripleoclients = clients.tripleoclient
workflow_input['playbook_name'] = 'scale_playbook.yaml'
with tripleoclients.messaging_websocket() as ws:
execution = base.start_workflow(
workflow_client,
'tripleo.deployment.v1.config_download_deploy',
workflow_input=workflow_input
)
for payload in base.wait_for_messages(workflow_client, ws, execution):
print(payload['message'])
if payload['status'] == 'SUCCESS':
print("Scale-down configuration completed.")
else:
raise exceptions.DeploymentError("Scale-down configuration failed.")
def delete_node(clients, timeout, **workflow_input):
workflow_client = clients.workflow_engine
tripleoclients = clients.tripleoclient
if timeout is not None:
workflow_input['timeout'] = timeout
with tripleoclients.messaging_websocket() as ws:
execution = base.start_workflow(
workflow_client,
'tripleo.scale.v1.delete_node',
workflow_input=workflow_input
)
for payload in base.wait_for_messages(workflow_client, ws, execution):
status = payload['status']
if status == 'RUNNING':
continue
if status != 'SUCCESS':
raise exceptions.InvalidConfiguration(payload['message'])
def scale_down(clients, plan_name, nodes, timeout=None):
"""Unprovision and deletes overcloud nodes from a heat stack.
:param clients: openstack clients
:param plan_name: name of the container holding the plan data
:param nodes: list of node id's to remove from the stack
:param timeout: timeout for stack update operation
"""
workflow_input = {
"plan_name": plan_name,
"nodes": nodes,
}
ansible_tear_down(clients, **workflow_input)
delete_node(clients, timeout, **workflow_input)