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comparison planemo/lib/python3.7/site-packages/boto/pyami/bootstrap.py @ 0:d30785e31577 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:18:57 -0400
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1 # Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
2 #
3 # Permission is hereby granted, free of charge, to any person obtaining a
4 # copy of this software and associated documentation files (the
5 # "Software"), to deal in the Software without restriction, including
6 # without limitation the rights to use, copy, modify, merge, publish, dis-
7 # tribute, sublicense, and/or sell copies of the Software, and to permit
8 # persons to whom the Software is furnished to do so, subject to the fol-
9 # lowing conditions:
10 #
11 # The above copyright notice and this permission notice shall be included
12 # in all copies or substantial portions of the Software.
13 #
14 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
16 # ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
17 # SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
20 # IN THE SOFTWARE.
21 #
22 import os
23 import boto
24 from boto.utils import get_instance_metadata, get_instance_userdata
25 from boto.pyami.config import Config, BotoConfigPath
26 from boto.pyami.scriptbase import ScriptBase
27 import time
28
29 class Bootstrap(ScriptBase):
30 """
31 The Bootstrap class is instantiated and run as part of the PyAMI
32 instance initialization process. The methods in this class will
33 be run from the rc.local script of the instance and will be run
34 as the root user.
35
36 The main purpose of this class is to make sure the boto distribution
37 on the instance is the one required.
38 """
39
40 def __init__(self):
41 self.working_dir = '/mnt/pyami'
42 self.write_metadata()
43 super(Bootstrap, self).__init__()
44
45 def write_metadata(self):
46 fp = open(os.path.expanduser(BotoConfigPath), 'w')
47 fp.write('[Instance]\n')
48 inst_data = get_instance_metadata()
49 for key in inst_data:
50 fp.write('%s = %s\n' % (key, inst_data[key]))
51 user_data = get_instance_userdata()
52 fp.write('\n%s\n' % user_data)
53 fp.write('[Pyami]\n')
54 fp.write('working_dir = %s\n' % self.working_dir)
55 fp.close()
56 # This file has the AWS credentials, should we lock it down?
57 # os.chmod(BotoConfigPath, stat.S_IREAD | stat.S_IWRITE)
58 # now that we have written the file, read it into a pyami Config object
59 boto.config = Config()
60 boto.init_logging()
61
62 def create_working_dir(self):
63 boto.log.info('Working directory: %s' % self.working_dir)
64 if not os.path.exists(self.working_dir):
65 os.mkdir(self.working_dir)
66
67 def load_boto(self):
68 update = boto.config.get('Boto', 'boto_update', 'svn:HEAD')
69 if update.startswith('svn'):
70 if update.find(':') >= 0:
71 method, version = update.split(':')
72 version = '-r%s' % version
73 else:
74 version = '-rHEAD'
75 location = boto.config.get('Boto', 'boto_location', '/usr/local/boto')
76 self.run('svn update %s %s' % (version, location))
77 elif update.startswith('git'):
78 location = boto.config.get('Boto', 'boto_location', '/usr/share/python-support/python-boto/boto')
79 num_remaining_attempts = 10
80 while num_remaining_attempts > 0:
81 num_remaining_attempts -= 1
82 try:
83 self.run('git pull', cwd=location)
84 num_remaining_attempts = 0
85 except Exception as e:
86 boto.log.info('git pull attempt failed with the following exception. Trying again in a bit. %s', e)
87 time.sleep(2)
88 if update.find(':') >= 0:
89 method, version = update.split(':')
90 else:
91 version = 'master'
92 self.run('git checkout %s' % version, cwd=location)
93 else:
94 # first remove the symlink needed when running from subversion
95 self.run('rm /usr/local/lib/python2.5/site-packages/boto')
96 self.run('easy_install %s' % update)
97
98 def fetch_s3_file(self, s3_file):
99 try:
100 from boto.utils import fetch_file
101 f = fetch_file(s3_file)
102 path = os.path.join(self.working_dir, s3_file.split("/")[-1])
103 open(path, "w").write(f.read())
104 except:
105 boto.log.exception('Problem Retrieving file: %s' % s3_file)
106 path = None
107 return path
108
109 def load_packages(self):
110 package_str = boto.config.get('Pyami', 'packages')
111 if package_str:
112 packages = package_str.split(',')
113 for package in packages:
114 package = package.strip()
115 if package.startswith('s3:'):
116 package = self.fetch_s3_file(package)
117 if package:
118 # if the "package" is really a .py file, it doesn't have to
119 # be installed, just being in the working dir is enough
120 if not package.endswith('.py'):
121 self.run('easy_install -Z %s' % package, exit_on_error=False)
122
123 def main(self):
124 self.create_working_dir()
125 self.load_boto()
126 self.load_packages()
127 self.notify('Bootstrap Completed for %s' % boto.config.get_instance('instance-id'))
128
129 if __name__ == "__main__":
130 # because bootstrap starts before any logging configuration can be loaded from
131 # the boto config files, we will manually enable logging to /var/log/boto.log
132 boto.set_file_logger('bootstrap', '/var/log/boto.log')
133 bs = Bootstrap()
134 bs.main()