python-tripleoclient/tripleoclient/workflows/plan_management.py

324 lines
12 KiB
Python

# 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 logging
import os
import tempfile
import yaml
from swiftclient import exceptions as swift_exc
from tripleo_common.utils import swift as swiftutils
from tripleo_common.utils import tarball
from tripleoclient import constants
from tripleoclient import exceptions
from tripleoclient.workflows import base
LOG = logging.getLogger(__name__)
# Plan management workflows should generally be quick. However, the creation
# of the default plan in instack has demonstrated that sometimes it can take
# several minutes. This timeout value of 6 minutes is the same as the timeout
# used in Instack.
_WORKFLOW_TIMEOUT = 360 # 6 * 60 seconds
def _upload_templates(swift_client, container_name, tht_root, roles_file=None,
plan_env_file=None, networks_file=None):
"""tarball up a given directory and upload it to Swift to be extracted"""
with tempfile.NamedTemporaryFile() as tmp_tarball:
tarball.create_tarball(tht_root, tmp_tarball.name)
tarball.tarball_extract_to_swift_container(
swift_client, tmp_tarball.name, container_name)
# Optional override of the roles_data.yaml file
if roles_file:
_upload_file(swift_client, container_name,
constants.OVERCLOUD_ROLES_FILE, roles_file)
# Optional override of the network_data.yaml file
if networks_file:
_upload_file(swift_client, container_name,
constants.OVERCLOUD_NETWORKS_FILE, networks_file)
# Optional override of the plan-environment.yaml file
if plan_env_file:
# TODO(jpalanis): Instead of overriding default file,
# merging the user override plan-environment with default
# plan-environment file will avoid explict merging issues.
_upload_file(swift_client, container_name,
constants.PLAN_ENVIRONMENT, plan_env_file)
def _create_update_deployment_plan(clients, workflow, **workflow_input):
workflow_client = clients.workflow_engine
tripleoclients = clients.tripleoclient
with tripleoclients.messaging_websocket() as ws:
execution = base.start_workflow(
workflow_client, workflow,
workflow_input=workflow_input
)
for payload in base.wait_for_messages(workflow_client, ws, execution,
_WORKFLOW_TIMEOUT):
if 'message' in payload:
print(payload['message'])
return payload
def create_deployment_plan(clients, **workflow_input):
payload = _create_update_deployment_plan(
clients, 'tripleo.plan_management.v1.create_deployment_plan',
**workflow_input)
if payload['status'] != 'SUCCESS':
raise exceptions.WorkflowServiceError(
'Exception creating plan: {}'.format(payload['message']))
def delete_deployment_plan(clients, **workflow_input):
workflow_client = clients.workflow_engine
tripleoclients = clients.tripleoclient
execution = base.start_workflow(
workflow_client,
'tripleo.plan_management.v1.delete_deployment_plan',
workflow_input=workflow_input
)
with tripleoclients.messaging_websocket() as ws:
for payload in base.wait_for_messages(workflow_client, ws, execution,
_WORKFLOW_TIMEOUT):
if 'message' in payload:
print(payload['message'])
if payload['status'] != 'SUCCESS':
raise exceptions.WorkflowServiceError(
'Exception deleting plan: {}'.format(payload['message']))
def update_deployment_plan(clients, **workflow_input):
payload = _create_update_deployment_plan(
clients, 'tripleo.plan_management.v1.update_deployment_plan',
**workflow_input)
if payload['status'] != 'SUCCESS':
raise exceptions.WorkflowServiceError(
'Exception updating plan: {}'.format(payload['message']))
def list_deployment_plans(clients, **workflow_input):
workflow_client = clients.workflow_engine
tripleoclients = clients.tripleoclient
with tripleoclients.messaging_websocket() as ws:
execution = base.start_workflow(
workflow_client,
'tripleo.plan_management.v1.list_plans',
workflow_input=workflow_input
)
for payload in base.wait_for_messages(workflow_client, ws, execution,
_WORKFLOW_TIMEOUT):
if payload['status'] != 'SUCCESS':
raise exceptions.WorkflowServiceError(
'Exception listing plans: {}'.format(payload['message']))
return payload['plans']
def create_container(workflow_client, **input_):
return base.call_action(workflow_client, 'tripleo.plan.create_container',
**input_)
def create_plan_from_templates(clients, name, tht_root, roles_file=None,
generate_passwords=True, plan_env_file=None,
networks_file=None):
workflow_client = clients.workflow_engine
swift_client = clients.tripleoclient.object_store
print("Creating Swift container to store the plan")
result = create_container(workflow_client, container=name)
if result:
# create_container returns 'None' on success and a string with
# the error message when failing.
raise exceptions.PlanCreationError(
"Unable to create plan. {}".format(result))
print("Creating plan from template files in: {}".format(tht_root))
_upload_templates(swift_client, name, tht_root, roles_file, plan_env_file,
networks_file)
try:
create_deployment_plan(clients, container=name,
generate_passwords=generate_passwords)
except exceptions.WorkflowServiceError:
swiftutils.delete_container(swift_client, name)
raise
def update_plan_from_templates(clients, name, tht_root, roles_file=None,
generate_passwords=True, plan_env_file=None,
networks_file=None, keep_env=False):
swift_client = clients.tripleoclient.object_store
passwords = None
keep_file_contents = {}
if keep_env:
# Dict items are (remote_name, local_name). local_name may be
# None in which case we only try to load from Swift (remote).
keep_map = {
constants.PLAN_ENVIRONMENT: plan_env_file,
constants.USER_ENVIRONMENT: None,
constants.OVERCLOUD_ROLES_FILE: roles_file,
constants.OVERCLOUD_NETWORKS_FILE: networks_file,
}
# Also try to fetch any files under 'user-files/'
# dir. local_name is always None for these
keep_map.update(dict(map(
lambda path: (path, None),
_list_user_files(swift_client, name))))
keep_file_contents = _load_content_or_file(
swift_client, name, keep_map)
elif not plan_env_file:
passwords = _load_passwords(swift_client, name)
# TODO(dmatthews): Removing the existing plan files should probably be
# a Mistral action.
print("Removing the current plan files")
swiftutils.empty_container(swift_client, name)
# Until we have a well defined plan update workflow in
# tripleo-common we need to manually reset the environments and
# parameter_defaults here. This is to ensure that no environments
# are in the plan environment but not actually in swift.
# See bug: https://bugs.launchpad.net/tripleo/+bug/1623431
#
# Currently this is being done incidentally because we overwrite
# the existing plan-environment.yaml with the skeleton one in THT
# when updating the templates. Once LP#1623431 is resolved we may
# need to special-case plan-environment.yaml to avoid this.
print("Uploading new plan files")
if keep_env:
_upload_templates(swift_client, name, tht_root)
for filename in keep_file_contents:
_upload_file_content(swift_client, name, filename,
keep_file_contents[filename])
else:
_upload_templates(swift_client, name, tht_root, roles_file,
plan_env_file, networks_file)
_update_passwords(swift_client, name, passwords)
update_deployment_plan(clients, container=name,
generate_passwords=generate_passwords,
source_url=None)
def _load_content_or_file(swift_client, container, remote_and_local_map):
# mapping (remote_name, content)
file_contents = {}
plan_files = _list_plan_files(swift_client, container)
for remote_name in remote_and_local_map:
LOG.debug("Attempting to load {0}".format(remote_name))
local_name = remote_and_local_map[remote_name]
# it's possible that the file doesn't exist in Swift and isn't
# passed on filesystem, in which case we won't do anything
content = None
# local override takes priority
if local_name:
LOG.debug("Using provided file {0}".format(local_name))
with open(os.path.abspath(local_name)) as local_content:
content = local_content.read()
elif remote_name in plan_files:
LOG.debug("Preserving plan file {0}".format(remote_name))
content = swift_client.get_object(container, remote_name)[1]
if content:
file_contents[remote_name] = content
return file_contents
def _list_user_files(swift_client, container):
return list(filter(lambda path: path.startswith('user-files/'),
_list_plan_files(swift_client, container)))
def _list_plan_files(swift_client, container):
return list(map(lambda i: i['name'],
swift_client.get_container(
container, full_listing=True)[1]))
def _upload_file(swift_client, container, filename, local_filename):
with open(local_filename) as file_content:
swift_client.put_object(container, filename, file_content)
# short function, just alias for interface parity with _upload_plan_file
def _upload_file_content(swift_client, container, filename, content):
LOG.debug("Uploading {0} to plan".format(filename))
swift_client.put_object(container, filename, content)
def _load_passwords(swift_client, name):
plan_env = yaml.safe_load(swift_client.get_object(
name, constants.PLAN_ENVIRONMENT)[1])
return plan_env['passwords']
def _update_passwords(swift_client, name, passwords):
# Update the plan environment with the generated passwords. This
# will be solved more elegantly once passwords are saved in a
# separate environment (https://review.openstack.org/#/c/467909/)
if passwords:
try:
env = yaml.safe_load(swift_client.get_object(
name, constants.PLAN_ENVIRONMENT)[1])
env['passwords'] = passwords
swift_client.put_object(name,
constants.PLAN_ENVIRONMENT,
yaml.safe_dump(env,
default_flow_style=False))
except swift_exc.ClientException:
# The plan likely has not been migrated to using Swift yet.
LOG.debug("Could not find plan environment %s in %s",
constants.PLAN_ENVIRONMENT, name)
def export_deployment_plan(clients, **workflow_input):
workflow_client = clients.workflow_engine
tripleoclients = clients.tripleoclient
execution = base.start_workflow(
workflow_client,
'tripleo.plan_management.v1.export_deployment_plan',
workflow_input=workflow_input
)
with tripleoclients.messaging_websocket() as ws:
for payload in base.wait_for_messages(workflow_client, ws, execution,
_WORKFLOW_TIMEOUT):
if 'message' in payload:
print(payload['message'])
if payload['status'] == 'SUCCESS':
return payload['tempurl']
else:
raise exceptions.WorkflowServiceError(
'Exception exporting plan: {}'.format(payload['message']))