root / snf-cyclades-gtools / synnefo / ganeti / eventd.py @ 449787d3
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1 | b024b97a | Georgios Gousios | #!/usr/bin/env python
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2 | 737b0e28 | Vangelis Koukis | # -*- coding: utf-8 -*-
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3 | b024b97a | Georgios Gousios | #
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4 | 737b0e28 | Vangelis Koukis | # Copyright 2011 GRNET S.A. All rights reserved.
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5 | 737b0e28 | Vangelis Koukis | #
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6 | 737b0e28 | Vangelis Koukis | # Redistribution and use in source and binary forms, with or
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7 | 737b0e28 | Vangelis Koukis | # without modification, are permitted provided that the following
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8 | 737b0e28 | Vangelis Koukis | # conditions are met:
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9 | 737b0e28 | Vangelis Koukis | #
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10 | 737b0e28 | Vangelis Koukis | # 1. Redistributions of source code must retain the above
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11 | 737b0e28 | Vangelis Koukis | # copyright notice, this list of conditions and the following
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12 | 737b0e28 | Vangelis Koukis | # disclaimer.
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13 | 737b0e28 | Vangelis Koukis | #
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14 | 737b0e28 | Vangelis Koukis | # 2. Redistributions in binary form must reproduce the above
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15 | 737b0e28 | Vangelis Koukis | # copyright notice, this list of conditions and the following
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16 | 737b0e28 | Vangelis Koukis | # disclaimer in the documentation and/or other materials
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17 | 737b0e28 | Vangelis Koukis | # provided with the distribution.
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18 | 737b0e28 | Vangelis Koukis | #
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19 | 737b0e28 | Vangelis Koukis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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20 | 737b0e28 | Vangelis Koukis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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21 | 737b0e28 | Vangelis Koukis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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22 | 737b0e28 | Vangelis Koukis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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23 | 737b0e28 | Vangelis Koukis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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24 | 737b0e28 | Vangelis Koukis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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25 | 737b0e28 | Vangelis Koukis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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26 | 737b0e28 | Vangelis Koukis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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27 | 737b0e28 | Vangelis Koukis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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28 | 737b0e28 | Vangelis Koukis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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29 | 737b0e28 | Vangelis Koukis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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30 | 737b0e28 | Vangelis Koukis | # POSSIBILITY OF SUCH DAMAGE.
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31 | 737b0e28 | Vangelis Koukis | #
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32 | 737b0e28 | Vangelis Koukis | # The views and conclusions contained in the software and
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33 | 737b0e28 | Vangelis Koukis | # documentation are those of the authors and should not be
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34 | 737b0e28 | Vangelis Koukis | # interpreted as representing official policies, either expressed
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35 | 737b0e28 | Vangelis Koukis | # or implied, of GRNET S.A.
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36 | 737b0e28 | Vangelis Koukis | #
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37 | 45ebfd48 | Vangelis Koukis | |
38 | 737b0e28 | Vangelis Koukis | """Ganeti notification daemon with AMQP support
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39 | b024b97a | Georgios Gousios |
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40 | b024b97a | Georgios Gousios | A daemon to monitor the Ganeti job queue and publish job progress
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41 | 80bd5072 | Georgios Gousios | and Ganeti VM state notifications to the ganeti exchange
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42 | b024b97a | Georgios Gousios | """
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43 | b024b97a | Georgios Gousios | |
44 | b024b97a | Georgios Gousios | import sys |
45 | b024b97a | Georgios Gousios | import os |
46 | b024b97a | Georgios Gousios | path = os.path.normpath(os.path.join(os.getcwd(), '..'))
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47 | b024b97a | Georgios Gousios | sys.path.append(path) |
48 | b024b97a | Georgios Gousios | |
49 | b024b97a | Georgios Gousios | import json |
50 | b024b97a | Georgios Gousios | import logging |
51 | b024b97a | Georgios Gousios | import pyinotify |
52 | b024b97a | Georgios Gousios | import daemon |
53 | b024b97a | Georgios Gousios | import daemon.pidlockfile |
54 | cf2a3529 | Christos Stavrakakis | import daemon.runner |
55 | cf2a3529 | Christos Stavrakakis | from lockfile import LockTimeout |
56 | b024b97a | Georgios Gousios | from signal import signal, SIGINT, SIGTERM |
57 | 1dc821c9 | Christos Stavrakakis | import setproctitle |
58 | b024b97a | Georgios Gousios | |
59 | 0e1f3323 | Christos Stavrakakis | from ganeti import utils, jqueue, constants, serializer, cli |
60 | e66a7e34 | Christos Stavrakakis | from ganeti.ssconf import SimpleConfigReader |
61 | e66a7e34 | Christos Stavrakakis | |
62 | b024b97a | Georgios Gousios | |
63 | 6d6b8f88 | Kostas Papadimitriou | from synnefo import settings |
64 | c4e55622 | Christos Stavrakakis | from synnefo.lib.amqp import AMQPClient |
65 | c4e55622 | Christos Stavrakakis | |
66 | 27a8e4ae | Christos Stavrakakis | |
67 | c4e55622 | Christos Stavrakakis | def get_time_from_status(op, job): |
68 | c4e55622 | Christos Stavrakakis | """Generate a unique message identifier for a ganeti job.
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69 | c4e55622 | Christos Stavrakakis |
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70 | c4e55622 | Christos Stavrakakis | The identifier is based on the timestamp of the job. Since a ganeti
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71 | c4e55622 | Christos Stavrakakis | job passes from multiple states, we need to pick the timestamp that
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72 | c4e55622 | Christos Stavrakakis | corresponds to each state.
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73 | c4e55622 | Christos Stavrakakis |
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74 | c4e55622 | Christos Stavrakakis | """
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75 | c4e55622 | Christos Stavrakakis | status = op.status |
76 | c4e55622 | Christos Stavrakakis | if status == constants.JOB_STATUS_QUEUED:
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77 | 765ff3ff | Christos Stavrakakis | time = job.received_timestamp |
78 | 27a8e4ae | Christos Stavrakakis | try: # Compatibility with Ganeti version |
79 | 39ccdb18 | Christos Stavrakakis | if status == constants.JOB_STATUS_WAITLOCK:
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80 | 765ff3ff | Christos Stavrakakis | time = op.start_timestamp |
81 | 39ccdb18 | Christos Stavrakakis | except AttributeError: |
82 | 39ccdb18 | Christos Stavrakakis | if status == constants.JOB_STATUS_WAITING:
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83 | 765ff3ff | Christos Stavrakakis | time = op.start_timestamp |
84 | c4e55622 | Christos Stavrakakis | if status == constants.JOB_STATUS_CANCELING:
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85 | 765ff3ff | Christos Stavrakakis | time = op.start_timestamp |
86 | c4e55622 | Christos Stavrakakis | if status == constants.JOB_STATUS_RUNNING:
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87 | 765ff3ff | Christos Stavrakakis | time = op.exec_timestamp |
88 | c4e55622 | Christos Stavrakakis | if status in constants.JOBS_FINALIZED: |
89 | 765ff3ff | Christos Stavrakakis | time = op.end_timestamp |
90 | 765ff3ff | Christos Stavrakakis | |
91 | 765ff3ff | Christos Stavrakakis | return time and time or job.end_timestamp |
92 | c4e55622 | Christos Stavrakakis | |
93 | 27a8e4ae | Christos Stavrakakis | raise InvalidBackendStatus(status, job)
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94 | c4e55622 | Christos Stavrakakis | |
95 | c4e55622 | Christos Stavrakakis | |
96 | 0e1f3323 | Christos Stavrakakis | def get_instance_nics(instance, logger): |
97 | 0e1f3323 | Christos Stavrakakis | """Query Ganeti to a get the instance's NICs.
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98 | 0e1f3323 | Christos Stavrakakis |
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99 | 0e1f3323 | Christos Stavrakakis | @type instance: string
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100 | 0e1f3323 | Christos Stavrakakis | @param instance: the name of the instance
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101 | 0e1f3323 | Christos Stavrakakis | @rtype: List of dicts
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102 | 0e1f3323 | Christos Stavrakakis | @retrun: Dictionary containing the instance's NICs. Each dictionary
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103 | 0e1f3323 | Christos Stavrakakis | contains the following keys: 'network', 'ip', 'mac', 'mode',
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104 | 0e1f3323 | Christos Stavrakakis | 'link' and 'firewall'
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105 | 0e1f3323 | Christos Stavrakakis |
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106 | 0e1f3323 | Christos Stavrakakis | """
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107 | 0e1f3323 | Christos Stavrakakis | fields = ["nic.networks", "nic.ips", "nic.macs", "nic.modes", "nic.links", |
108 | 0e1f3323 | Christos Stavrakakis | "tags"]
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109 | 0e1f3323 | Christos Stavrakakis | # Get Ganeti client
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110 | 0e1f3323 | Christos Stavrakakis | client = cli.GetClient() |
111 | 0e1f3323 | Christos Stavrakakis | info = client.QueryInstances([instance], fields, use_locking=False)
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112 | 0e1f3323 | Christos Stavrakakis | networks, ips, macs, modes, links, tags = info[0]
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113 | 0e1f3323 | Christos Stavrakakis | nic_keys = ["network", "ip", "mac", "mode", "link"] |
114 | 0e1f3323 | Christos Stavrakakis | nics = zip(networks, ips, macs, modes, links)
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115 | 0e1f3323 | Christos Stavrakakis | nics = map(lambda x: dict(zip(nic_keys, x)), nics) |
116 | 0e1f3323 | Christos Stavrakakis | # Get firewall from instance Tags
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117 | 0e1f3323 | Christos Stavrakakis | # Tags are of the form synnefo:network:N:firewall_mode
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118 | 0e1f3323 | Christos Stavrakakis | for tag in tags: |
119 | 0e1f3323 | Christos Stavrakakis | t = tag.split(":")
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120 | 0e1f3323 | Christos Stavrakakis | if t[0:2] == ["synnefo", "network"]: |
121 | 0e1f3323 | Christos Stavrakakis | if len(t) != 4: |
122 | 0e1f3323 | Christos Stavrakakis | logger.error("Malformed synefo tag %s", tag)
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123 | 0e1f3323 | Christos Stavrakakis | continue
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124 | 0e1f3323 | Christos Stavrakakis | try:
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125 | 0e1f3323 | Christos Stavrakakis | index = int(t[2]) |
126 | 0e1f3323 | Christos Stavrakakis | nics[index]['firewall'] = t[3] |
127 | 0e1f3323 | Christos Stavrakakis | except ValueError: |
128 | 0e1f3323 | Christos Stavrakakis | logger.error("Malformed synnefo tag %s", tag)
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129 | 0e1f3323 | Christos Stavrakakis | except IndexError: |
130 | 0e1f3323 | Christos Stavrakakis | logger.error("Found tag %s for non-existent NIC %d",
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131 | 0e1f3323 | Christos Stavrakakis | tag, index) |
132 | 0e1f3323 | Christos Stavrakakis | return nics
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133 | 0e1f3323 | Christos Stavrakakis | |
134 | 0e1f3323 | Christos Stavrakakis | |
135 | c4e55622 | Christos Stavrakakis | class InvalidBackendStatus(Exception): |
136 | c4e55622 | Christos Stavrakakis | def __init__(self, status, job): |
137 | c4e55622 | Christos Stavrakakis | self.status = status
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138 | c4e55622 | Christos Stavrakakis | self.job = job
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139 | c4e55622 | Christos Stavrakakis | |
140 | c4e55622 | Christos Stavrakakis | def __str__(self): |
141 | c4e55622 | Christos Stavrakakis | return repr("Invalid backend status: %s in job %s" |
142 | c4e55622 | Christos Stavrakakis | % (self.status, self.job)) |
143 | c4e55622 | Christos Stavrakakis | |
144 | 27a8e4ae | Christos Stavrakakis | |
145 | 39ccdb18 | Christos Stavrakakis | def prefix_from_name(name): |
146 | 39ccdb18 | Christos Stavrakakis | return name.split('-')[0] |
147 | 39ccdb18 | Christos Stavrakakis | |
148 | 39ccdb18 | Christos Stavrakakis | |
149 | 39ccdb18 | Christos Stavrakakis | def get_field(from_, field): |
150 | 39ccdb18 | Christos Stavrakakis | try:
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151 | 39ccdb18 | Christos Stavrakakis | return getattr(from_, field) |
152 | 39ccdb18 | Christos Stavrakakis | except AttributeError: |
153 | 39ccdb18 | Christos Stavrakakis | None
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154 | 39ccdb18 | Christos Stavrakakis | |
155 | 45ebfd48 | Vangelis Koukis | |
156 | b024b97a | Georgios Gousios | class JobFileHandler(pyinotify.ProcessEvent): |
157 | 27a8e4ae | Christos Stavrakakis | def __init__(self, logger, cluster_name): |
158 | 348f53de | Georgios Gousios | pyinotify.ProcessEvent.__init__(self)
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159 | 348f53de | Georgios Gousios | self.logger = logger
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160 | 27a8e4ae | Christos Stavrakakis | self.cluster_name = cluster_name
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161 | 27a8e4ae | Christos Stavrakakis | |
162 | 2ef10562 | Christos Stavrakakis | # Set max_retries to 0 for unlimited retries.
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163 | 2ef10562 | Christos Stavrakakis | self.client = AMQPClient(hosts=settings.AMQP_HOSTS, confirm_buffer=25, |
164 | a8858945 | Christos Stavrakakis | max_retries=0, logger=logger)
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165 | 2ef10562 | Christos Stavrakakis | |
166 | c4e55622 | Christos Stavrakakis | handler_logger.info("Attempting to connect to RabbitMQ hosts")
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167 | 27a8e4ae | Christos Stavrakakis | |
168 | c4e55622 | Christos Stavrakakis | self.client.connect()
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169 | c4e55622 | Christos Stavrakakis | handler_logger.info("Connected succesfully")
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170 | b024b97a | Georgios Gousios | |
171 | 27a8e4ae | Christos Stavrakakis | self.client.exchange_declare(settings.EXCHANGE_GANETI, type='topic') |
172 | 27a8e4ae | Christos Stavrakakis | |
173 | 39ccdb18 | Christos Stavrakakis | self.op_handlers = {"INSTANCE": self.process_instance_op, |
174 | 39ccdb18 | Christos Stavrakakis | "NETWORK": self.process_network_op} |
175 | 39ccdb18 | Christos Stavrakakis | # "GROUP": self.process_group_op}
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176 | 39ccdb18 | Christos Stavrakakis | |
177 | b024b97a | Georgios Gousios | def process_IN_CLOSE_WRITE(self, event): |
178 | 80dcd124 | Vangelis Koukis | self.process_IN_MOVED_TO(event)
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179 | 80dcd124 | Vangelis Koukis | |
180 | 80dcd124 | Vangelis Koukis | def process_IN_MOVED_TO(self, event): |
181 | b024b97a | Georgios Gousios | jobfile = os.path.join(event.path, event.name) |
182 | b024b97a | Georgios Gousios | if not event.name.startswith("job-"): |
183 | b024b97a | Georgios Gousios | self.logger.debug("Not a job file: %s" % event.path) |
184 | b024b97a | Georgios Gousios | return
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185 | b024b97a | Georgios Gousios | |
186 | b024b97a | Georgios Gousios | try:
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187 | b024b97a | Georgios Gousios | data = utils.ReadFile(jobfile) |
188 | b024b97a | Georgios Gousios | except IOError: |
189 | b024b97a | Georgios Gousios | return
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190 | b024b97a | Georgios Gousios | |
191 | b024b97a | Georgios Gousios | data = serializer.LoadJson(data) |
192 | 27a8e4ae | Christos Stavrakakis | try: # Compatibility with Ganeti version |
193 | 4ed30eed | Christos Stavrakakis | job = jqueue._QueuedJob.Restore(None, data, False) |
194 | 4ed30eed | Christos Stavrakakis | except TypeError: |
195 | 4ed30eed | Christos Stavrakakis | job = jqueue._QueuedJob.Restore(None, data)
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196 | 4ed30eed | Christos Stavrakakis | |
197 | 39ccdb18 | Christos Stavrakakis | job_id = int(job.id)
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198 | b024b97a | Georgios Gousios | |
199 | b024b97a | Georgios Gousios | for op in job.ops: |
200 | 39ccdb18 | Christos Stavrakakis | op_id = op.input.OP_ID |
201 | b024b97a | Georgios Gousios | |
202 | 39ccdb18 | Christos Stavrakakis | msg = None
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203 | b024b97a | Georgios Gousios | try:
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204 | 39ccdb18 | Christos Stavrakakis | handler_fn = self.op_handlers[op_id.split('_')[1]] |
205 | 39ccdb18 | Christos Stavrakakis | msg, routekey = handler_fn(op, job_id) |
206 | 39ccdb18 | Christos Stavrakakis | except KeyError: |
207 | b024b97a | Georgios Gousios | pass
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208 | b024b97a | Georgios Gousios | |
209 | 39ccdb18 | Christos Stavrakakis | if not msg: |
210 | 39ccdb18 | Christos Stavrakakis | self.logger.debug("Ignoring job: %s: %s", job_id, op_id) |
211 | 07e4ab22 | Christos Stavrakakis | continue
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212 | 07e4ab22 | Christos Stavrakakis | |
213 | 39ccdb18 | Christos Stavrakakis | # Generate a unique message identifier
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214 | 39ccdb18 | Christos Stavrakakis | event_time = get_time_from_status(op, job) |
215 | 39ccdb18 | Christos Stavrakakis | |
216 | b024b97a | Georgios Gousios | # Get the last line of the op log as message
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217 | b024b97a | Georgios Gousios | try:
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218 | b024b97a | Georgios Gousios | logmsg = op.log[-1][-1] |
219 | b024b97a | Georgios Gousios | except IndexError: |
220 | b024b97a | Georgios Gousios | logmsg = None
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221 | 348f53de | Georgios Gousios | |
222 | 39ccdb18 | Christos Stavrakakis | # Add shared attributes for all operations
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223 | 39ccdb18 | Christos Stavrakakis | msg.update({"event_time": event_time,
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224 | 39ccdb18 | Christos Stavrakakis | "operation": op_id,
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225 | 39ccdb18 | Christos Stavrakakis | "status": op.status,
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226 | 27a8e4ae | Christos Stavrakakis | "cluster": self.cluster_name, |
227 | 39ccdb18 | Christos Stavrakakis | "logmsg": logmsg,
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228 | 39ccdb18 | Christos Stavrakakis | "jobId": job_id})
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229 | c4e55622 | Christos Stavrakakis | |
230 | 0e1f3323 | Christos Stavrakakis | if op_id in ["OP_INSTANCE_CREATE", "OP_INSTANCE_SET_PARAMS", |
231 | 0e1f3323 | Christos Stavrakakis | "OP_INSTANCE_STARTUP"]:
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232 | 0e1f3323 | Christos Stavrakakis | if op.status == "success": |
233 | 0e1f3323 | Christos Stavrakakis | nics = get_instance_nics(msg["instance"], self.logger) |
234 | 0e1f3323 | Christos Stavrakakis | msg["nics"] = nics
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235 | 0e1f3323 | Christos Stavrakakis | |
236 | c4e55622 | Christos Stavrakakis | msg = json.dumps(msg) |
237 | 39ccdb18 | Christos Stavrakakis | self.logger.debug("Delivering msg: %s (key=%s)", msg, routekey) |
238 | c4e55622 | Christos Stavrakakis | |
239 | c4e55622 | Christos Stavrakakis | # Send the message to RabbitMQ
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240 | db400d82 | Christos Stavrakakis | self.client.basic_publish(settings.EXCHANGE_GANETI,
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241 | db400d82 | Christos Stavrakakis | routekey, |
242 | db400d82 | Christos Stavrakakis | msg) |
243 | 39ccdb18 | Christos Stavrakakis | |
244 | 39ccdb18 | Christos Stavrakakis | def process_instance_op(self, op, job_id): |
245 | 39ccdb18 | Christos Stavrakakis | """ Process OP_INSTANCE_* opcodes.
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246 | 39ccdb18 | Christos Stavrakakis |
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247 | 39ccdb18 | Christos Stavrakakis | """
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248 | 39ccdb18 | Christos Stavrakakis | input = op.input |
249 | 39ccdb18 | Christos Stavrakakis | op_id = input.OP_ID
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250 | 39ccdb18 | Christos Stavrakakis | |
251 | 39ccdb18 | Christos Stavrakakis | instances = None
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252 | 39ccdb18 | Christos Stavrakakis | instances = get_field(input, 'instance_name') |
253 | 39ccdb18 | Christos Stavrakakis | if not instances: |
254 | 39ccdb18 | Christos Stavrakakis | instances = get_field(input, 'instances') |
255 | 39ccdb18 | Christos Stavrakakis | if not instances or len(instances) > 1: |
256 | 39ccdb18 | Christos Stavrakakis | # Do not publish messages for jobs with no or multiple
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257 | 449787d3 | Christos Stavrakakis | # instances. Currently snf-dispatcher can not normally handle
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258 | 449787d3 | Christos Stavrakakis | # these messages
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259 | 39ccdb18 | Christos Stavrakakis | return None, None |
260 | 39ccdb18 | Christos Stavrakakis | else:
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261 | 39ccdb18 | Christos Stavrakakis | instances = instances[0]
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262 | 39ccdb18 | Christos Stavrakakis | |
263 | 39ccdb18 | Christos Stavrakakis | self.logger.debug("Job: %d: %s(%s) %s", job_id, op_id, |
264 | 39ccdb18 | Christos Stavrakakis | instances, op.status) |
265 | 39ccdb18 | Christos Stavrakakis | |
266 | 39ccdb18 | Christos Stavrakakis | msg = {"type": "ganeti-op-status", |
267 | 39ccdb18 | Christos Stavrakakis | "instance": instances,
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268 | 39ccdb18 | Christos Stavrakakis | "operation": op_id}
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269 | 39ccdb18 | Christos Stavrakakis | |
270 | 39ccdb18 | Christos Stavrakakis | routekey = "ganeti.%s.event.op" % prefix_from_name(instances)
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271 | 39ccdb18 | Christos Stavrakakis | |
272 | 39ccdb18 | Christos Stavrakakis | return msg, routekey
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273 | 39ccdb18 | Christos Stavrakakis | |
274 | 39ccdb18 | Christos Stavrakakis | def process_network_op(self, op, job_id): |
275 | 39ccdb18 | Christos Stavrakakis | """ Process OP_NETWORK_* opcodes.
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276 | 39ccdb18 | Christos Stavrakakis |
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277 | 39ccdb18 | Christos Stavrakakis | """
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278 | 39ccdb18 | Christos Stavrakakis | |
279 | 39ccdb18 | Christos Stavrakakis | input = op.input |
280 | 39ccdb18 | Christos Stavrakakis | op_id = input.OP_ID
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281 | 39ccdb18 | Christos Stavrakakis | network_name = get_field(input, 'network_name') |
282 | 39ccdb18 | Christos Stavrakakis | |
283 | 39ccdb18 | Christos Stavrakakis | if not network_name: |
284 | 39ccdb18 | Christos Stavrakakis | return None, None |
285 | 39ccdb18 | Christos Stavrakakis | |
286 | 39ccdb18 | Christos Stavrakakis | self.logger.debug("Job: %d: %s(%s) %s", job_id, op_id, |
287 | 39ccdb18 | Christos Stavrakakis | network_name, op.status) |
288 | 39ccdb18 | Christos Stavrakakis | |
289 | 39ccdb18 | Christos Stavrakakis | msg = {'operation': op_id,
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290 | 39ccdb18 | Christos Stavrakakis | 'type': "ganeti-network-status", |
291 | 39ccdb18 | Christos Stavrakakis | 'network': network_name,
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292 | 39ccdb18 | Christos Stavrakakis | 'subnet': get_field(input, 'network'), |
293 | 39ccdb18 | Christos Stavrakakis | # 'network_mode': get_field(input, 'network_mode'),
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294 | 39ccdb18 | Christos Stavrakakis | # 'network_link': get_field(input, 'network_link'),
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295 | 39ccdb18 | Christos Stavrakakis | 'gateway': get_field(input, 'gateway'), |
296 | 39ccdb18 | Christos Stavrakakis | 'group_name': get_field(input, 'group_name')} |
297 | 39ccdb18 | Christos Stavrakakis | |
298 | fd2bdbb2 | Christos Stavrakakis | if op_id == "OP_NETWORK_SET_PARAMS": |
299 | 449787d3 | Christos Stavrakakis | msg["add_reserved_ips"] = get_field(input, "add_reserved_ips") |
300 | 449787d3 | Christos Stavrakakis | msg["remove_reserved_ips"] = get_field(input, |
301 | 449787d3 | Christos Stavrakakis | "remove_reserved_ips")
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302 | 39ccdb18 | Christos Stavrakakis | routekey = "ganeti.%s.event.network" % prefix_from_name(network_name)
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303 | 39ccdb18 | Christos Stavrakakis | |
304 | 39ccdb18 | Christos Stavrakakis | return msg, routekey
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305 | 39ccdb18 | Christos Stavrakakis | |
306 | 39ccdb18 | Christos Stavrakakis | |
307 | 39ccdb18 | Christos Stavrakakis | # def process_group_op(self, op, job_id):
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308 | 39ccdb18 | Christos Stavrakakis | # """ Process OP_GROUP_* opcodes.
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309 | 39ccdb18 | Christos Stavrakakis | |
310 | 39ccdb18 | Christos Stavrakakis | # """
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311 | 39ccdb18 | Christos Stavrakakis | # return None, None
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312 | 39ccdb18 | Christos Stavrakakis | |
313 | 39ccdb18 | Christos Stavrakakis | |
314 | 27a8e4ae | Christos Stavrakakis | def find_cluster_name(): |
315 | 51fc0054 | Christos Stavrakakis | global handler_logger
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316 | 51fc0054 | Christos Stavrakakis | try:
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317 | e66a7e34 | Christos Stavrakakis | scr = SimpleConfigReader() |
318 | e66a7e34 | Christos Stavrakakis | name = scr.GetClusterName() |
319 | 51fc0054 | Christos Stavrakakis | except Exception as e: |
320 | 51fc0054 | Christos Stavrakakis | handler_logger.error('Can not get the name of the Cluster: %s' % e)
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321 | 51fc0054 | Christos Stavrakakis | raise e
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322 | 51fc0054 | Christos Stavrakakis | |
323 | 27a8e4ae | Christos Stavrakakis | return name
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324 | 39ccdb18 | Christos Stavrakakis | |
325 | 449787d3 | Christos Stavrakakis | |
326 | b024b97a | Georgios Gousios | handler_logger = None
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327 | 449787d3 | Christos Stavrakakis | |
328 | 449787d3 | Christos Stavrakakis | |
329 | b024b97a | Georgios Gousios | def fatal_signal_handler(signum, frame): |
330 | b024b97a | Georgios Gousios | global handler_logger
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331 | b024b97a | Georgios Gousios | |
332 | b024b97a | Georgios Gousios | handler_logger.info("Caught fatal signal %d, will raise SystemExit",
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333 | 2cd99e7a | Georgios Gousios | signum) |
334 | b024b97a | Georgios Gousios | raise SystemExit |
335 | b024b97a | Georgios Gousios | |
336 | 449787d3 | Christos Stavrakakis | |
337 | b024b97a | Georgios Gousios | def parse_arguments(args): |
338 | b024b97a | Georgios Gousios | from optparse import OptionParser |
339 | b024b97a | Georgios Gousios | |
340 | b024b97a | Georgios Gousios | parser = OptionParser() |
341 | b024b97a | Georgios Gousios | parser.add_option("-d", "--debug", action="store_true", dest="debug", |
342 | 2cd99e7a | Georgios Gousios | help="Enable debugging information")
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343 | b024b97a | Georgios Gousios | parser.add_option("-l", "--log", dest="log_file", |
344 | 45ebfd48 | Vangelis Koukis | default="/var/log/snf-ganeti-eventd.log",
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345 | 2cd99e7a | Georgios Gousios | metavar="FILE",
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346 | 2cd99e7a | Georgios Gousios | help="Write log to FILE instead of %s" %
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347 | 449787d3 | Christos Stavrakakis | "/var/log/snf-ganeti-eventd.log")
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348 | b024b97a | Georgios Gousios | parser.add_option('--pid-file', dest="pid_file", |
349 | 45ebfd48 | Vangelis Koukis | default="/var/run/snf-ganeti-eventd.pid",
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350 | 2cd99e7a | Georgios Gousios | metavar='PIDFILE',
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351 | 2cd99e7a | Georgios Gousios | help="Save PID to file (default: %s)" %
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352 | 449787d3 | Christos Stavrakakis | "/var/run/snf-ganeti-eventd.pid")
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353 | b024b97a | Georgios Gousios | |
354 | b024b97a | Georgios Gousios | return parser.parse_args(args)
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355 | b024b97a | Georgios Gousios | |
356 | 449787d3 | Christos Stavrakakis | |
357 | b024b97a | Georgios Gousios | def main(): |
358 | b024b97a | Georgios Gousios | global handler_logger
|
359 | b024b97a | Georgios Gousios | |
360 | b024b97a | Georgios Gousios | (opts, args) = parse_arguments(sys.argv[1:])
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361 | b024b97a | Georgios Gousios | |
362 | b024b97a | Georgios Gousios | # Initialize logger
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363 | b024b97a | Georgios Gousios | lvl = logging.DEBUG if opts.debug else logging.INFO |
364 | 03a4b970 | Georgios Gousios | logger = logging.getLogger("ganeti.eventd")
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365 | b024b97a | Georgios Gousios | logger.setLevel(lvl) |
366 | 36cf1973 | Vangelis Koukis | formatter = logging.Formatter( |
367 | 36cf1973 | Vangelis Koukis | "%(asctime)s %(module)s[%(process)d] %(levelname)s: %(message)s",
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368 | 36cf1973 | Vangelis Koukis | "%Y-%m-%d %H:%M:%S")
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369 | b024b97a | Georgios Gousios | handler = logging.FileHandler(opts.log_file) |
370 | b024b97a | Georgios Gousios | handler.setFormatter(formatter) |
371 | b024b97a | Georgios Gousios | logger.addHandler(handler) |
372 | b024b97a | Georgios Gousios | handler_logger = logger |
373 | b024b97a | Georgios Gousios | |
374 | 1dc821c9 | Christos Stavrakakis | # Rename this process so 'ps' output looks like this is a native
|
375 | 1dc821c9 | Christos Stavrakakis | # executable. Can not seperate command-line arguments from actual name of
|
376 | 1dc821c9 | Christos Stavrakakis | # the executable by NUL bytes, so only show the name of the executable
|
377 | 1dc821c9 | Christos Stavrakakis | # instead. setproctitle.setproctitle("\x00".join(sys.argv))
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378 | 1dc821c9 | Christos Stavrakakis | setproctitle.setproctitle(sys.argv[0])
|
379 | 1dc821c9 | Christos Stavrakakis | |
380 | cf2a3529 | Christos Stavrakakis | # Create pidfile
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381 | cf2a3529 | Christos Stavrakakis | pidf = daemon.pidlockfile.TimeoutPIDLockFile(opts.pid_file, 10)
|
382 | cf2a3529 | Christos Stavrakakis | |
383 | cf2a3529 | Christos Stavrakakis | # Remove any stale PID files, left behind by previous invocations
|
384 | cf2a3529 | Christos Stavrakakis | if daemon.runner.is_pidfile_stale(pidf):
|
385 | cf2a3529 | Christos Stavrakakis | logger.warning("Removing stale PID lock file %s", pidf.path)
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386 | cf2a3529 | Christos Stavrakakis | pidf.break_lock() |
387 | cf2a3529 | Christos Stavrakakis | |
388 | 348f53de | Georgios Gousios | # Become a daemon:
|
389 | 348f53de | Georgios Gousios | # Redirect stdout and stderr to handler.stream to catch
|
390 | 348f53de | Georgios Gousios | # early errors in the daemonization process [e.g., pidfile creation]
|
391 | 348f53de | Georgios Gousios | # which will otherwise go to /dev/null.
|
392 | 348f53de | Georgios Gousios | daemon_context = daemon.DaemonContext( |
393 | 449787d3 | Christos Stavrakakis | pidfile=pidf, |
394 | 449787d3 | Christos Stavrakakis | umask=022,
|
395 | 449787d3 | Christos Stavrakakis | stdout=handler.stream, |
396 | 449787d3 | Christos Stavrakakis | stderr=handler.stream, |
397 | 449787d3 | Christos Stavrakakis | files_preserve=[handler.stream]) |
398 | cf2a3529 | Christos Stavrakakis | try:
|
399 | cf2a3529 | Christos Stavrakakis | daemon_context.open() |
400 | cf2a3529 | Christos Stavrakakis | except (daemon.pidlockfile.AlreadyLocked, LockTimeout):
|
401 | cf2a3529 | Christos Stavrakakis | logger.critical("Failed to lock pidfile %s, another instance running?",
|
402 | cf2a3529 | Christos Stavrakakis | pidf.path) |
403 | cf2a3529 | Christos Stavrakakis | sys.exit(1)
|
404 | cf2a3529 | Christos Stavrakakis | |
405 | 348f53de | Georgios Gousios | logger.info("Became a daemon")
|
406 | 348f53de | Georgios Gousios | |
407 | 348f53de | Georgios Gousios | # Catch signals to ensure graceful shutdown
|
408 | 348f53de | Georgios Gousios | signal(SIGINT, fatal_signal_handler) |
409 | 348f53de | Georgios Gousios | signal(SIGTERM, fatal_signal_handler) |
410 | 348f53de | Georgios Gousios | |
411 | b024b97a | Georgios Gousios | # Monitor the Ganeti job queue, create and push notifications
|
412 | b024b97a | Georgios Gousios | wm = pyinotify.WatchManager() |
413 | 449787d3 | Christos Stavrakakis | mask = (pyinotify.EventsCodes.ALL_FLAGS["IN_MOVED_TO"] |
|
414 | 449787d3 | Christos Stavrakakis | pyinotify.EventsCodes.ALL_FLAGS["IN_CLOSE_WRITE"])
|
415 | 51fc0054 | Christos Stavrakakis | |
416 | 27a8e4ae | Christos Stavrakakis | cluster_name = find_cluster_name() |
417 | 51fc0054 | Christos Stavrakakis | |
418 | 27a8e4ae | Christos Stavrakakis | handler = JobFileHandler(logger, cluster_name) |
419 | b024b97a | Georgios Gousios | notifier = pyinotify.Notifier(wm, handler) |
420 | b024b97a | Georgios Gousios | |
421 | b024b97a | Georgios Gousios | try:
|
422 | b024b97a | Georgios Gousios | # Fail if adding the inotify() watch fails for any reason
|
423 | b024b97a | Georgios Gousios | res = wm.add_watch(constants.QUEUE_DIR, mask) |
424 | b024b97a | Georgios Gousios | if res[constants.QUEUE_DIR] < 0: |
425 | 36cf1973 | Vangelis Koukis | raise Exception("pyinotify add_watch returned negative descriptor") |
426 | 348f53de | Georgios Gousios | |
427 | 449787d3 | Christos Stavrakakis | logger.info("Now watching %s of %s" %
|
428 | 449787d3 | Christos Stavrakakis | (constants.QUEUE_DIR, cluster_name)) |
429 | b024b97a | Georgios Gousios | |
430 | b024b97a | Georgios Gousios | while True: # loop forever |
431 | 348f53de | Georgios Gousios | # process the queue of events as explained above
|
432 | b024b97a | Georgios Gousios | notifier.process_events() |
433 | b024b97a | Georgios Gousios | if notifier.check_events():
|
434 | b024b97a | Georgios Gousios | # read notified events and enqeue them
|
435 | b024b97a | Georgios Gousios | notifier.read_events() |
436 | b024b97a | Georgios Gousios | except SystemExit: |
437 | b024b97a | Georgios Gousios | logger.info("SystemExit")
|
438 | b024b97a | Georgios Gousios | except:
|
439 | b024b97a | Georgios Gousios | logger.exception("Caught exception, terminating")
|
440 | b024b97a | Georgios Gousios | finally:
|
441 | b024b97a | Georgios Gousios | # destroy the inotify's instance on this interrupt (stop monitoring)
|
442 | b024b97a | Georgios Gousios | notifier.stop() |
443 | b024b97a | Georgios Gousios | raise
|
444 | b024b97a | Georgios Gousios | |
445 | b024b97a | Georgios Gousios | if __name__ == "__main__": |
446 | b024b97a | Georgios Gousios | sys.exit(main()) |
447 | b024b97a | Georgios Gousios | |
448 | 348f53de | Georgios Gousios | # vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |