141 lines
4.0 KiB
Python
Executable File
141 lines
4.0 KiB
Python
Executable File
#!/usr/bin/python
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# vi: ts=4 expandtab
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#
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# Copyright (C) 2009-2010 Canonical Ltd.
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#
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# Author: Scott Moser <scott.moser@canonical.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 3, as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import subprocess
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import sys
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import cloudinit
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import cloudinit.util as util
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import cloudinit.CloudConfig as CC
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import time
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import logging
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import errno
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def warn(wstr):
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sys.stderr.write(wstr)
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def main():
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cmds = ( "start", "start-local" )
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cmd = ""
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if len(sys.argv) > 1:
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cmd = sys.argv[1]
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if not cmd in cmds:
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sys.stderr.write("bad command %s. use one of %s\n" % (cmd, cmds))
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sys.exit(1)
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now = time.strftime("%a, %d %b %Y %H:%M:%S %z",time.gmtime())
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try:
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uptimef=open("/proc/uptime")
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uptime=uptimef.read().split(" ")[0]
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uptimef.close()
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except IOError as e:
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warn("unable to open /proc/uptime\n")
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uptime = "na"
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source_type = "all"
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if cmd == "start-local":
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source_type = "local"
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try:
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cfg = cloudinit.get_base_cfg()
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(outfmt, errfmt) = CC.get_output_cfg(cfg,"init")
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CC.redirect_output(outfmt, errfmt)
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except Exception as e:
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warn("Failed to get and set output config: %s\n" % e)
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msg = "cloud-init %s running: %s. up %s seconds" % (cmd, now, uptime)
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sys.stderr.write(msg + "\n")
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sys.stderr.flush()
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cloudinit.logging_set_from_cfg(cfg)
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log = logging.getLogger()
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log.info(msg)
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try:
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cloudinit.initfs()
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except Exception as e:
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warn("failed to initfs, likely bad things to come: %s\n" % str(e))
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# cache is not instance specific, so it has to be purged
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# but we want 'start' to benefit from a cache if
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# a previous start-local populated one
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if cmd == "start-local":
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cloudinit.purge_cache()
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cloud = cloudinit.CloudInit(source_type=source_type)
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try:
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cloud.get_data_source()
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except cloudinit.DataSourceNotFoundException as e:
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sys.stderr.write("no instance data found in %s\n" % cmd)
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sys.exit(1)
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# set this as the current instance
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cloud.set_cur_instance()
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# store the metadata
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cloud.update_cache()
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msg = "found data source: %s" % cloud.datasource
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sys.stderr.write(msg + "\n")
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log.debug(msg)
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# parse the user data (ec2-run-userdata.py)
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try:
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cloud.sem_and_run("consume_userdata", "once-per-instance",
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cloud.consume_userdata,[],False)
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except:
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warn("consuming user data failed!\n")
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raise
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# finish, send the cloud-config event
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cloud.initctl_emit()
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cfg_path = cloudinit.get_ipath_cur("cloud_config")
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cc = CC.CloudConfig(cfg_path, cloud)
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# if the output config changed, update output and err
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try:
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outfmt_orig = outfmt
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errfmt_orig = errfmt
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(outfmt, errfmt) = CC.get_output_cfg(cc.cfg,"init")
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if outfmt_orig != outfmt or errfmt_orig != errfmt:
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warn("stdout, stderr changing to (%s,%s)" % (outfmt,errfmt))
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CC.redirect_output(outfmt, errfmt)
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except Exception as e:
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warn("Failed to get and set output config: %s\n" % e)
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module_list = CC.read_cc_modules(cc.cfg,"cloud_init_modules")
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failures = []
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if len(module_list):
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failures = CC.run_cc_modules(cc,module_list,log)
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else:
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msg = "no cloud_init_modules to run"
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sys.stderr.write(msg + "\n")
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log.debug(msg)
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sys.exit(0)
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sys.exit(len(failures))
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if __name__ == '__main__':
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main()
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