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# vi: ts=4 expandtab
#
# Common code for the EC2 initialisation scripts in Ubuntu
# Copyright (C) 2008-2009 Canonical Ltd
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
#
# Author: Soren Hansen <soren@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.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 os
import sys
import errno
import subprocess
import yaml
import glob
from cloudinit import log as logging
from cloudinit import sources
from cloudinit import url_helper as uhelp
from cloudinit import util
from cloudinit.settings import (VAR_LIB_DIR, CFG_BUILTIN, CLOUD_CONFIG,
BOOT_FINISHED, CUR_INSTANCE_LINK)
LOG = logging.getLogger(__name__)
INIT_SUBDIRS = [
os.path.join(VAR_LIB_DIR, 'scripts'),
os.path.join(VAR_LIB_DIR, 'scripts', 'per-instance'),
os.path.join(VAR_LIB_DIR, 'scripts', 'per-once'),
os.path.join(VAR_LIB_DIR, 'scripts', 'per-boot'),
os.path.join(VAR_LIB_DIR, 'seed'),
os.path.join(VAR_LIB_DIR, 'instances'),
os.path.join(VAR_LIB_DIR, 'handlers'),
os.path.join(VAR_LIB_DIR, 'sem'),
os.path.join(VAR_LIB_DIR, 'data'),
]
def initfs():
util.ensure_dirs(INIT_SUBDIRS)
cfg = util.get_base_cfg(CLOUD_CONFIG, get_builtin_cfg())
log_file = util.get_cfg_option_str(cfg, 'def_log_file', None)
perms = util.get_cfg_option_str(cfg, 'syslog_fix_perms', None)
if log_file:
util.ensure_file(log_file)
if perms:
(u, g) = perms.split(':', 1)
if u == "-1" or u == "None":
u = None
if g == "-1" or g == "None":
g = None
util.chownbyname(log_file, u, g)
def purge_cache(rmcur=True):
rmlist = [BOOT_FINISHED]
if rmcur:
rmlist.append(CUR_INSTANCE_LINK)
for f in rmlist:
util.unlink(f)
return True
def get_base_cfg(cfg_path=None):
if cfg_path is None:
cfg_path = CLOUD_CONFIG
return util.get_base_cfg(cfg_path, get_builtin_cfg())
def get_builtin_cfg():
return dict(CFG_BUILTIN)
def list_sources(cfg_list, depends):
return sources.list_sources(cfg_list, depends, ["cloudinit", ""])
def get_cmdline_url(names=None, starts=None, cmdline=None):
if cmdline is None:
cmdline = util.get_cmdline()
if not names:
names = ('cloud-config-url', 'url')
if not starts:
starts = "#cloud-config"
data = util.keyval_str_to_dict(cmdline)
url = None
key = None
for key in names:
if key in data:
url = data[key]
break
if url is None:
return (None, None, None)
contents = uhelp.readurl(url)
if contents.startswith(starts):
return (key, url, contents)
return (key, url, None)
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