193 lines
7.5 KiB
Python
193 lines
7.5 KiB
Python
# Copyright 2017 Red Hat, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import re
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import shutil
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import six
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import sys
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import tempfile
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from mistral_lib import actions
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from oslo_concurrency import processutils
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from swiftclient import exceptions as swiftexceptions
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from tripleo_common.actions import base
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from tripleo_common.utils import swift as swiftutils
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from tripleo_common.utils import tarball
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from tripleo_common.utils import time_functions as timeutils
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class FileExists(base.TripleOAction):
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"""Verifies if a path exists on the localhost (undercloud)"""
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def __init__(self, path):
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self.path = path
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def run(self, context):
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if (isinstance(self.path, six.string_types) and
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os.path.exists(self.path)):
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msg = "Found file %s" % self.path
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return actions.Result(data={"msg": msg})
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else:
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msg = "File %s not found" % self.path
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return actions.Result(error={"msg": msg})
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class MakeTempDir(base.TripleOAction):
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"""Creates temporary directory on localhost
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The directory created will match the regular expression
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^/tmp/file-mistral-action[A-Za-z0-9_]{6}$
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"""
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def __init__(self):
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pass
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def run(self, context):
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try:
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_path = tempfile.mkdtemp(dir='/tmp/',
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prefix='file-mistral-action')
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return actions.Result(data={"path": _path})
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except Exception as msg:
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return actions.Result(error={"msg": six.text_type(msg)})
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class RemoveTempDir(base.TripleOAction):
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"""Removes temporary directory on localhost by path.
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The path must match the regular expression
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^/tmp/file-mistral-action[A-Za-z0-9_]{6}$
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"""
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def __init__(self, path):
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self.path = path
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def run(self, context):
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# regex from tempfile's _RandomNameSequence characters
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_regex = '^/tmp/file-mistral-action[A-Za-z0-9_]{6}$'
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if (not isinstance(self.path, six.string_types) or
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not re.match(_regex, self.path)):
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msg = "Path does not match %s" % _regex
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return actions.Result(error={"msg": msg})
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try:
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shutil.rmtree(self.path)
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msg = "Deleted directory %s" % self.path
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return actions.Result(data={"msg": msg})
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except Exception as msg:
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return actions.Result(error={"msg": six.text_type(msg)})
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class SaveTempDirToSwift(base.TripleOAction):
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"""Save temporary directory, identified by path, to Swift container
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The path must match the regular expression
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^/tmp/file-mistral-action[A-Za-z0-9_]{6}$
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The Swift container must exist
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Contents from path will be packaged in a tarball before upload
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Older tarball(s) will be replaced with the one that is uploaded
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"""
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def __init__(self, path, container):
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super(SaveTempDirToSwift, self).__init__()
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self.path = path
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self.container = container
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def run(self, context):
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swift = self.get_object_client(context)
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swift_service = self.get_object_service(context)
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tarball_name = 'temporary_dir-%s.tar.gz' \
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% timeutils.timestamp()
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# regex from tempfile's _RandomNameSequence characters
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_regex = '^/tmp/file-mistral-action[A-Za-z0-9_]{6}$'
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if (not isinstance(self.path, six.string_types) or
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not re.match(_regex, self.path)):
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msg = "Path does not match %s" % _regex
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return actions.Result(error={"msg": msg})
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try:
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headers, objects = swift.get_container(self.container)
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for o in objects:
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swift.delete_object(self.container, o['name'])
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swiftutils.create_and_upload_tarball(
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swift_service, self.path, self.container,
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tarball_name, delete_after=sys.maxsize)
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except swiftexceptions.ClientException as err:
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msg = "Error attempting an operation on container: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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except (OSError, IOError) as err:
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msg = "Error while writing file: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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except processutils.ProcessExecutionError as err:
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msg = "Error while creating a tarball: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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except Exception as err:
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msg = "Error exporting logs: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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msg = "Saved tarball of directory: %s in Swift container: %s" % (
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self.path, self.container)
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return actions.Result(data={"msg": msg})
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class RestoreTempDirFromSwift(base.TripleOAction):
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"""Unpack tarball from Swift container into temporary directory at path
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The path must exist and match the regular expression
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^/tmp/file-mistral-action[A-Za-z0-9_]{6}$
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Container should contain a single tarball object
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If container is empty, then no error is returned
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"""
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def __init__(self, path, container):
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super(RestoreTempDirFromSwift, self).__init__()
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self.path = path
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self.container = container
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def run(self, context):
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swift = self.get_object_client(context)
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# regex from tempfile's _RandomNameSequence characters
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_regex = '^/tmp/file-mistral-action[A-Za-z0-9_]{6}$'
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if (not isinstance(self.path, six.string_types) or
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not re.match(_regex, self.path)):
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msg = "Path does not match %s" % _regex
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return actions.Result(error={"msg": msg})
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try:
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swiftutils.download_container(swift, self.container, self.path)
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filenames = os.listdir(self.path)
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if len(filenames) == 0:
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pass
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elif len(filenames) == 1:
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tarball.extract_tarball(self.path, filenames[0], remove=True)
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else:
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msg = "%d objects found in container: %s" \
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% (len(filenames), self.container)
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msg += " but one object was expected."
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return actions.Result(error={"msg": six.text_type(msg)})
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except swiftexceptions.ClientException as err:
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msg = "Error attempting an operation on container: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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except (OSError, IOError) as err:
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msg = "Error while writing file: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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except processutils.ProcessExecutionError as err:
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msg = "Error while creating a tarball: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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except Exception as err:
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msg = "Error exporting logs: %s" % err
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return actions.Result(error={"msg": six.text_type(msg)})
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msg = "Swift container: %s has been extracted to directory: %s" % (
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self.container, self.path)
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return actions.Result(data={"msg": msg})
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