7b4cfd7dd1
I042cdd2dd2407f381cafcabc5c6b83d9b9a9eb00 adds instructions to workers on how to send logs to swift using the FormPost middleware. This slave-script allows you to pass in a directory to push to swift using these instructions and returns a URL where they are available. Change-Id: I7ccafa408a88ef80317b1c546b3451c0033dce61
143 lines
5.0 KiB
Python
Executable File
143 lines
5.0 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Copyright 2014 Rackspace Australia
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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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"""
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Utility to upload folders to swift using the form post middleware
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credentials provided by zuul
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"""
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import argparse
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import magic
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import os
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import requests
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import tempfile
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def generate_log_index(file_list, logserver_prefix, swift_destination_prefix):
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"""Create an index of logfiles and links to them"""
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output = '<html><head><title>Index of results</title></head><body>'
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output += '<ul>'
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for f in file_list:
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file_url = os.path.join(logserver_prefix, swift_destination_prefix,
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f['filename'])
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output += '<li>'
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output += '<a href="%s">%s</a>' % (file_url, f['filename'])
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output += '</li>'
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output += '</ul>'
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output += '</body></html>'
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return output
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def make_index_file(file_list, logserver_prefix, swift_destination_prefix,
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index_filename='index.html'):
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"""Writes an index into a file for pushing"""
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index_content = generate_log_index(file_list, logserver_prefix,
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swift_destination_prefix)
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tempdir = tempfile.mkdtemp()
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fd = open(os.path.join(tempdir, index_filename), 'w')
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fd.write(index_content)
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return os.path.join(tempdir, index_filename)
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def swift_form_post_submit(file_list, url, hmac_body, signature):
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"""Send the files to swift via the FormPost middleware"""
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# We are uploading the file_list as an HTTP POST multipart encoded.
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# First grab out the information we need to send back from the hmac_body
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payload = {}
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(object_prefix,
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payload['redirect'],
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payload['max_file_size'],
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payload['max_file_count'],
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payload['expires']) = hmac_body.split('\\n')
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payload['signature'] = signature
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if len(file_list) > payload['max_file_count']:
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# We can't upload this many files! We'll do what we can but the job
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# should be reconfigured
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file_list = file_list[:payload['max_file_count']]
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files = {}
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for i, f in enumerate(file_list):
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files['file%d' % (i + 1)] = (f['filename'], open(f['path'], 'rb'),
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magic.from_file(f['path'], mime=True))
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requests.post(url, data=payload, files=files)
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def zuul_swift_upload(file_path, swift_url, swift_hmac_body, swift_signature,
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logserver_prefix, swift_destination_prefix):
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"""Upload to swift using instructions from zuul"""
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# file_list: a list of dicts with {path=..., filename=...} where filename
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# is appended to the end of the object (paths can be used)
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file_list = []
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if os.path.isfile(file_path):
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file_list.append({'filename': os.path.basename(file_path),
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'path': file_path})
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index_file = file_path
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elif os.path.isdir(file_path):
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for path, folders, files in os.walk(file_path):
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for f in files:
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full_path = os.path.join(path, f)
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relative_name = os.path.relpath(full_path, file_path)
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file_list.append({'filename': relative_name,
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'path': full_path})
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index_file = make_index_file(file_list, logserver_prefix,
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swift_destination_prefix)
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file_list.append({'filename': os.path.basename(index_file),
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'path': index_file})
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swift_form_post_submit(file_list, swift_url, swift_hmac_body,
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swift_signature)
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return (logserver_prefix + swift_destination_prefix +
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os.path.basename(index_file))
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def grab_args():
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"""Grab and return arguments"""
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parser = argparse.ArgumentParser(
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description="Upload results to swift using instructions from zuul"
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)
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parser.add_argument('-n', '--name', default="logs",
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help='The instruction-set to use')
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parser.add_argument('files', nargs='+', help='the file(s) to upload')
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return parser.parse_args()
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if __name__ == '__main__':
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args = grab_args()
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for file_path in args.files:
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try:
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result_url = zuul_swift_upload(
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file_path,
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os.environ['SWIFT_%s_URL' % args.name],
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os.environ['SWIFT_%s_HMAC_BODY' % args.name],
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os.environ['SWIFT_%s_SIGNATURE' % args.name],
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os.environ['SWIFT_%s_LOGSERVER_PREFIX' % args.name],
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os.environ['SWIFT_%s_DESTINATION_PREFIX' % args.name]
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)
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print result_url
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except KeyError as e:
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print 'Environment variable %s not found' % e
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