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