[Feat] Support remote tarball as chart source
-Add functionality to download a tarball from a URL, decompress/extract the archive, and use as a chart source -Compartmentalized functionality to later support extracting, but not downloading, local tarballs -Refactor specific git utils to general source utils -Small exception handling bug fix
This commit is contained in:
parent
bbc88b49d3
commit
4554cac0d9
@ -23,15 +23,3 @@ class KnownReleasesException(ArmadaException):
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'''Exception that occurs when no known releases are found'''
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message = 'No known releases found'
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class ChartSourceException(ArmadaException):
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'''Exception for unknown chart source type.'''
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def __init__(self, chart_name, source_type):
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self._chart_name = chart_name
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self._source_type = source_type
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self._message = 'Unknown source type \"' + self._source_type + '\" for \
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chart \"' + self._chart_name + '\"'
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super(ChartSourceException, self).__init__(self._message)
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@ -23,7 +23,7 @@ class DependencyException(ChartBuilderException):
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'''Exception that occurs when dependencies cannot be resolved.'''
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def __init__(self, chart_name):
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self._chart_name
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self._chart_name = chart_name
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self._message = 'Failed to resolve dependencies for ' + \
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self._chart_name + '.'
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@ -33,7 +33,7 @@ class HelmChartBuildException(ChartBuilderException):
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'''Exception that occurs when Helm Chart fails to build.'''
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def __init__(self, chart_name):
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self._chart_name
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self._chart_name = chart_name
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self._message = 'Failed to build Helm chart for ' + \
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self._chart_name + '.'
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@ -1,38 +0,0 @@
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# Copyright 2017 The Armada Authors.
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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 base_exception
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class GitException(base_exception.ArmadaBaseException):
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'''Base class for Git exceptions and error handling.'''
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message = 'An unknown error occured while cloning a Git repository.'
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class GitLocationException(GitException):
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'''Exception that occurs when an error occurs cloning a Git repository.'''
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def __init__(self, location):
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self._location = location
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self._message = self._location + ' is not a valid git repository.'
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super(GitLocationException, self).__init__(self._message)
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class SourceCleanupException(GitException):
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'''Exception that occurs for an invalid dir.'''
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def __init__(self, target_dir):
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self._target_dir = target_dir
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self._message = self._target_dir + ' is not a valid directory.'
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super(SourceCleanupException, self).__init__(self._message)
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80
armada/exceptions/source_exceptions.py
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80
armada/exceptions/source_exceptions.py
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@ -0,0 +1,80 @@
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# Copyright 2017 The Armada Authors.
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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 base_exception
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class SourceException(base_exception.ArmadaBaseException):
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'''Base class for Git exceptions and error handling.'''
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message = 'An unknown error occured while accessing a chart source'
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class GitLocationException(SourceException):
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'''Exception that occurs when an error occurs cloning a Git repository.'''
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def __init__(self, location):
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self._location = location
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self._message = self._location + ' is not a valid git repository.'
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super(GitLocationException, self).__init__(self._message)
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class SourceCleanupException(SourceException):
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'''Exception that occurs for an invalid dir.'''
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def __init__(self, target_dir):
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self._target_dir = target_dir
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self._message = self._target_dir + ' is not a valid directory.'
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super(SourceCleanupException, self).__init__(self._message)
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class TarballDownloadException(SourceException):
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'''Exception that occurs when the tarball cannot be downloaded
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from the provided URL
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'''
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def __init__(self, tarball_url):
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self._tarball_url = tarball_url
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self._message = 'Unable to download from ' + self._tarball_url
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super(TarballDownloadException, self).__init__(self._message)
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class TarballExtractException(SourceException):
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'''Exception that occurs when extracting the tarball fails'''
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def __init__(self, tarball_dir):
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self._tarball_dir = tarball_dir
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self._message = 'Unable to extract ' + self._tarball_dir
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super(TarballExtractException, self).__init__(self._message)
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class InvalidPathException(SourceException):
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'''Exception that occurs when a nonexistant path is accessed'''
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def __init__(self, path):
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self._path = path
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self._message = 'Unable to access path ' + self._path
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super(InvalidPathException, self).__init__(self._message)
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class ChartSourceException(SourceException):
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'''Exception for unknown chart source type.'''
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def __init__(self, chart_name, source_type):
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self._chart_name = chart_name
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self._source_type = source_type
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self._message = 'Unknown source type \"' + self._source_type + '\" for \
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chart \"' + self._chart_name + '\"'
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super(ChartSourceException, self).__init__(self._message)
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@ -24,12 +24,12 @@ from tiller import Tiller
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from manifest import Manifest
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from ..exceptions import armada_exceptions
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from ..exceptions import git_exceptions
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from ..exceptions import source_exceptions
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from ..exceptions import lint_exceptions
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from ..exceptions import tiller_exceptions
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from ..utils.release import release_prefix
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from ..utils import git
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from ..utils import source
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from ..utils import lint
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from ..const import KEYWORD_ARMADA, KEYWORD_GROUPS, KEYWORD_CHARTS,\
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KEYWORD_PREFIX, STATUS_FAILED
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@ -142,20 +142,24 @@ class Armada(object):
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if ct_type == 'local':
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ch.get('chart')['source_dir'] = (location, subpath)
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elif ct_type == 'tar':
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LOG.info('Downloading tarball from: %s', location)
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tarball_dir = source.get_tarball(location)
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ch.get('chart')['source_dir'] = (tarball_dir, subpath)
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elif ct_type == 'git':
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if location not in repos.keys():
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try:
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LOG.info('Cloning repo: %s', location)
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repo_dir = git.git_clone(location, reference)
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repo_dir = source.git_clone(location, reference)
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except Exception:
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raise git_exceptions.GitLocationException(location)
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raise source_exceptions.GitLocationException(location)
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repos[location] = repo_dir
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ch.get('chart')['source_dir'] = (repo_dir, subpath)
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else:
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ch.get('chart')['source_dir'] = (repos.get(location), subpath)
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else:
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chart_name = ch.get('chart').get('chart_name')
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raise armada_exceptions.ChartSourceException(ct_type, chart_name)
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raise source_exceptions.ChartSourceException(ct_type, chart_name)
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def get_releases_by_status(self, status):
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'''
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@ -305,7 +309,7 @@ class Armada(object):
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for group in self.config.get(KEYWORD_ARMADA).get(KEYWORD_GROUPS):
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for ch in group.get(KEYWORD_CHARTS):
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if ch.get('chart').get('source').get('type') == 'git':
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git.source_cleanup(ch.get('chart').get('source_dir')[0])
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source.source_cleanup(ch.get('chart').get('source_dir')[0])
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def show_diff(self, chart, installed_chart, installed_values, target_chart,
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target_values):
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@ -202,7 +202,7 @@ class ChartBuilder(object):
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templates=self.get_templates(),
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dependencies=dependencies,
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values=self.get_values(),
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files=self.get_files(), )
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files=self.get_files())
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except Exception:
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chart_name = self.chart.chart_name
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raise chartbuilder_exceptions.HelmChartBuildException(chart_name)
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@ -1,67 +0,0 @@
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# Copyright 2017 The Armada Authors.
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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 mock
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import unittest
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from armada.exceptions import git_exceptions
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from armada.utils import git
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class GitTestCase(unittest.TestCase):
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@mock.patch('armada.utils.git.tempfile')
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@mock.patch('armada.utils.git.pygit2')
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def test_git_clone_good_url(self, mock_pygit, mock_temp):
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mock_temp.mkdtemp.return_value = '/tmp/armada'
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mock_pygit.clone_repository.return_value = "Repository"
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url = 'http://github.com/att-comdev/armada'
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dir = git.git_clone(url)
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self.assertIsNotNone(dir)
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def test_git_clone_empty_url(self):
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url = ''
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with self.assertRaises(Exception):
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self.assertFalse(git.git_clone(url))
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def test_git_clone_bad_url(self):
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url = 'http://github.com/dummy/armada'
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with self.assertRaises(Exception):
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git.git_clone(url)
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@mock.patch('armada.utils.git.shutil')
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@mock.patch('armada.utils.git.path')
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def test_source_cleanup(self, mock_path, mock_shutil):
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mock_path.exists.return_value = True
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path = 'armada'
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try:
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git.source_cleanup(path)
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except git_exceptions.SourceCleanupException:
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pass
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mock_shutil.rmtree.assert_called_with(path)
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@unittest.skip('not handled correctly')
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@mock.patch('armada.utils.git.shutil')
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@mock.patch('armada.utils.git.path')
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def test_source_cleanup_bad_path(self, mock_path, mock_shutil):
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mock_path.exists.return_value = False
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path = 'armada'
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with self.assertRaises(Exception):
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git.source_cleanup(path)
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mock_shutil.rmtree.assert_not_called()
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117
armada/tests/unit/utils/test_source.py
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117
armada/tests/unit/utils/test_source.py
Normal file
@ -0,0 +1,117 @@
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# Copyright 2017 The Armada Authors.
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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 mock
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import unittest
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from armada.exceptions import source_exceptions
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from armada.utils import source
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class GitTestCase(unittest.TestCase):
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SOURCE_UTILS_LOCATION = 'armada.utils.source'
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@mock.patch('armada.utils.source.tempfile')
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@mock.patch('armada.utils.source.pygit2')
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def test_git_clone_good_url(self, mock_pygit, mock_temp):
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mock_temp.mkdtemp.return_value = '/tmp/armada'
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mock_pygit.clone_repository.return_value = "Repository"
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url = 'http://github.com/att-comdev/armada'
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dir = source.git_clone(url)
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self.assertIsNotNone(dir)
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def test_git_clone_empty_url(self):
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url = ''
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with self.assertRaises(Exception):
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self.assertFalse(source.git_clone(url))
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def test_git_clone_bad_url(self):
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url = 'http://github.com/dummy/armada'
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with self.assertRaises(Exception):
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source.git_clone(url)
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@mock.patch('armada.utils.source.tempfile')
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@mock.patch('armada.utils.source.requests')
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def test_tarball_download(self, mock_requests, mock_temp):
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url = 'http://localhost:8879/charts/mariadb-0.1.0.tgz'
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mock_temp.mkstemp.return_value = (None, '/tmp/armada')
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mock_response = mock.Mock()
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mock_response.content = 'some string'
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mock_requests.get.return_value = mock_response
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mock_open = mock.mock_open()
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with mock.patch('{}.open'.format(self.SOURCE_UTILS_LOCATION),
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mock_open, create=True):
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source.download_tarball(url)
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mock_temp.mkstemp.assert_called_once()
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mock_requests.get.assert_called_once_with(url)
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mock_open.assert_called_once_with('/tmp/armada', 'wb')
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mock_open().write.assert_called_once_with(
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mock_requests.get(url).content)
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@mock.patch('armada.utils.source.tempfile')
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@mock.patch('armada.utils.source.path')
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@mock.patch('armada.utils.source.tarfile')
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def test_tarball_extract(self, mock_tarfile, mock_path, mock_temp):
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mock_path.exists.return_value = True
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mock_temp.mkdtemp.return_value = '/tmp/armada'
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mock_opened_file = mock.Mock()
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mock_tarfile.open.return_value = mock_opened_file
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path = '/tmp/mariadb-0.1.0.tgz'
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source.extract_tarball(path)
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mock_path.exists.assert_called_once()
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mock_temp.mkdtemp.assert_called_once()
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mock_tarfile.open.assert_called_once_with(path)
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mock_opened_file.extractall.assert_called_once_with('/tmp/armada')
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@mock.patch('armada.utils.source.path')
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@mock.patch('armada.utils.source.tarfile')
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def test_tarball_extract_bad_path(self, mock_tarfile, mock_path):
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mock_path.exists.return_value = False
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path = '/tmp/armada'
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with self.assertRaises(Exception):
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source.extract_tarball(path)
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mock_tarfile.open.assert_not_called()
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mock_tarfile.extractall.assert_not_called()
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@mock.patch('armada.utils.source.shutil')
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@mock.patch('armada.utils.source.path')
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def test_source_cleanup(self, mock_path, mock_shutil):
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mock_path.exists.return_value = True
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path = 'armada'
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try:
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source.source_cleanup(path)
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except source_exceptions.SourceCleanupException:
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pass
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mock_shutil.rmtree.assert_called_with(path)
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@unittest.skip('not handled correctly')
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@mock.patch('armada.utils.source.shutil')
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@mock.patch('armada.utils.source.path')
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def test_source_cleanup_bad_path(self, mock_path, mock_shutil):
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mock_path.exists.return_value = False
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path = 'armada'
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with self.assertRaises(Exception):
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source.source_cleanup(path)
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mock_shutil.rmtree.assert_not_called()
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@ -1,30 +0,0 @@
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import pygit2
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import tempfile
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import shutil
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from os import path
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from ..exceptions import git_exceptions
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def git_clone(repo_url, branch='master'):
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'''
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clones repo to a /tmp/ dir
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'''
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if repo_url == '':
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raise git_exceptions.GitLocationException(repo_url)
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_tmp_dir = tempfile.mkdtemp(prefix='armada', dir='/tmp')
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try:
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pygit2.clone_repository(repo_url, _tmp_dir, checkout_branch=branch)
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except Exception:
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raise git_exceptions.GitLocationException(repo_url)
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return _tmp_dir
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def source_cleanup(target_dir):
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'''
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Clean up source
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'''
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if path.exists(target_dir):
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shutil.rmtree(target_dir)
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65
armada/utils/source.py
Normal file
65
armada/utils/source.py
Normal file
@ -0,0 +1,65 @@
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import pygit2
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import requests
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import tarfile
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import tempfile
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import shutil
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from os import path
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from ..exceptions import source_exceptions
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def git_clone(repo_url, branch='master'):
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'''
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clones repo to a /tmp/ dir
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'''
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if repo_url == '':
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raise source_exceptions.GitLocationException(repo_url)
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_tmp_dir = tempfile.mkdtemp(prefix='armada', dir='/tmp')
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try:
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pygit2.clone_repository(repo_url, _tmp_dir, checkout_branch=branch)
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except Exception:
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raise source_exceptions.GitLocationException(repo_url)
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return _tmp_dir
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def get_tarball(tarball_url):
|
||||
tarball_path = download_tarball(tarball_url)
|
||||
return extract_tarball(tarball_path)
|
||||
|
||||
def download_tarball(tarball_url):
|
||||
'''
|
||||
Downloads a tarball to /tmp and returns the path
|
||||
'''
|
||||
try:
|
||||
tarball_filename = tempfile.mkstemp(prefix='armada', dir='/tmp')[1]
|
||||
response = requests.get(tarball_url)
|
||||
with open(tarball_filename, 'wb') as f:
|
||||
f.write(response.content)
|
||||
except Exception:
|
||||
raise source_exceptions.TarballDownloadException(tarball_url)
|
||||
return tarball_filename
|
||||
|
||||
def extract_tarball(tarball_path):
|
||||
'''
|
||||
Extracts a tarball to /tmp and returns the path
|
||||
'''
|
||||
if not path.exists(tarball_path):
|
||||
raise source_exceptions.InvalidPathException(tarball_path)
|
||||
|
||||
_tmp_dir = tempfile.mkdtemp(prefix='armada', dir='/tmp')
|
||||
|
||||
try:
|
||||
file = tarfile.open(tarball_path)
|
||||
file.extractall(_tmp_dir)
|
||||
except Exception:
|
||||
raise source_exceptions.TarballExtractException(tarball_path)
|
||||
return _tmp_dir
|
||||
|
||||
def source_cleanup(target_dir):
|
||||
'''
|
||||
Clean up source
|
||||
'''
|
||||
if path.exists(target_dir):
|
||||
shutil.rmtree(target_dir)
|
@ -151,7 +151,7 @@ Source
|
||||
+-------------+----------+---------------------------------------------------------------+
|
||||
| keyword | type | action |
|
||||
+=============+==========+===============================================================+
|
||||
| type | string | source to build the chart: ``git`` or ``local`` |
|
||||
| type | string | source to build the chart: ``git``, ``local``, or ``tar`` |
|
||||
+-------------+----------+---------------------------------------------------------------+
|
||||
| location | string | ``url`` or ``path`` to the chart's parent directory |
|
||||
+-------------+----------+---------------------------------------------------------------+
|
||||
@ -247,9 +247,9 @@ Simple Example
|
||||
namespace: default
|
||||
values: {}
|
||||
source:
|
||||
type: git
|
||||
location: https://github.com/namespace/repo
|
||||
subpath: .
|
||||
type: tar
|
||||
location: http://localhost:8879/namespace/repo
|
||||
subpath: blog-2
|
||||
reference: master
|
||||
dependencies: []
|
||||
---
|
||||
|
@ -4,8 +4,6 @@ Armada Exceptions
|
||||
+------------------------+----------------------------------------------------------+
|
||||
| Exception | Error Description |
|
||||
+========================+==========================================================+
|
||||
| ChartSourceException | Occurs when an unknown chart source type is encountered. |
|
||||
+------------------------+----------------------------------------------------------+
|
||||
| KnownReleasesException | Occurs when no known releases are found. |
|
||||
+------------------------+----------------------------------------------------------+
|
||||
|
||||
@ -53,16 +51,24 @@ Chartbuilder Exceptions
|
||||
| UnknownChartSourceException | The chart source is unknown or invalid. |
|
||||
+-----------------------------+-------------------------------------------------------------+
|
||||
|
||||
Git Exceptions
|
||||
Source Exceptions
|
||||
===============
|
||||
|
||||
+------------------------+---------------------------------------------+
|
||||
| Exception | Error Description |
|
||||
+========================+=============================================+
|
||||
| GitLocationException | Repository location is not valid. |
|
||||
+------------------------+---------------------------------------------+
|
||||
| SourceCleanupException | The source dir of a chart no longer exists. |
|
||||
+------------------------+---------------------------------------------+
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
| Exception | Error Description |
|
||||
+==========================+=====================================================================+
|
||||
| GitLocationException | Repository location is not valid. |
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
| SourceCleanupException | The source dir of a chart no longer exists. |
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
| TarballDownloadException | Occurs when the tarball cannot be downloaded from the provided URL. |
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
| TarballExtractException | Occurs when extracting a tarball fails. |
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
| InvalidPathException | Occurs when a nonexistant path is accessed. |
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
| ChartSourceException | Occurs when an unknown chart source type is encountered. |
|
||||
+--------------------------+---------------------------------------------------------------------+
|
||||
|
||||
Lint Exceptions
|
||||
===============
|
||||
|
57
examples/tar_example.yaml
Normal file
57
examples/tar_example.yaml
Normal file
@ -0,0 +1,57 @@
|
||||
---
|
||||
schema: armada/Chart/v1
|
||||
metadata:
|
||||
schema: metadata/Document/v1
|
||||
name: helm-toolkit
|
||||
data:
|
||||
chart_name: helm-toolkit
|
||||
release: helm-toolkit
|
||||
namespace: helm-tookit
|
||||
values: {}
|
||||
source:
|
||||
type: git
|
||||
location: git://github.com/openstack/openstack-helm
|
||||
subpath: helm-toolkit
|
||||
reference: master
|
||||
dependencies: []
|
||||
---
|
||||
schema: armada/Chart/v1
|
||||
metadata:
|
||||
schema: metadata/Document/v1
|
||||
name: mariadb-tarball
|
||||
data:
|
||||
chart_name: mariadb-tarball
|
||||
release: mariadb-tarball
|
||||
namespace: tarball
|
||||
timeout: 3600
|
||||
install:
|
||||
no_hooks: false
|
||||
upgrade:
|
||||
no_hooks: false
|
||||
values: {}
|
||||
source:
|
||||
type: tar
|
||||
location: http://localhost:8879/charts/mariadb-0.1.0.tgz
|
||||
subpath: mariadb
|
||||
reference: null
|
||||
dependencies:
|
||||
- helm-toolkit
|
||||
---
|
||||
schema: armada/ChartGroup/v1
|
||||
metadata:
|
||||
schema: metadata/Document/v1
|
||||
name: tar-example
|
||||
data:
|
||||
description: "Deploying mariadb tarball URL"
|
||||
sequenced: True
|
||||
chart_group:
|
||||
- mariadb-tarball
|
||||
---
|
||||
schema: armada/Manifest/v1
|
||||
metadata:
|
||||
schema: metadata/Document/v1
|
||||
name: armada-manifest
|
||||
data:
|
||||
release_prefix: armada
|
||||
chart_groups:
|
||||
- tar-example
|
Loading…
Reference in New Issue
Block a user