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