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# 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 cloudinit.util as util
import subprocess
import traceback
import os
import glob
import cloudinit.CloudConfig as cc
def handle(name,cfg,cloud,log,args):
update = util.get_cfg_option_bool(cfg, 'apt_update', False)
upgrade = util.get_cfg_option_bool(cfg, 'apt_upgrade', False)
release = get_release()
mirror = find_apt_mirror(cloud, cfg)
log.debug("selected mirror at: %s" % mirror)
if not util.get_cfg_option_bool(cfg, \
'apt_preserve_sources_list', False):
generate_sources_list(release, mirror)
old_mir = util.get_cfg_option_str(cfg,'apt_old_mirror', \
"archive.ubuntu.com/ubuntu")
rename_apt_lists(old_mir, mirror)
# set up proxy
proxy = cfg.get("apt_proxy", None)
proxy_filename = "/etc/apt/apt.conf.d/95cloud-init-proxy"
if proxy:
try:
contents = "Acquire::HTTP::Proxy \"%s\";\n"
with open(proxy_filename,"w") as fp:
fp.write(contents % proxy)
except Exception as e:
log.warn("Failed to write proxy to %s" % proxy_filename)
elif os.path.isfile(proxy_filename):
os.unlink(proxy_filename)
# process 'apt_sources'
if cfg.has_key('apt_sources'):
errors = add_sources(cfg['apt_sources'],
{ 'MIRROR' : mirror, 'RELEASE' : release } )
for e in errors:
log.warn("Source Error: %s\n" % ':'.join(e))
dconf_sel = util.get_cfg_option_str(cfg, 'debconf_selections', False)
if dconf_sel:
log.debug("setting debconf selections per cloud config")
try:
util.subp(('debconf-set-selections', '-'), dconf_sel)
except:
log.error("Failed to run debconf-set-selections")
log.debug(traceback.format_exc())
pkglist = util.get_cfg_option_list_or_str(cfg,'packages',[])
errors = [ ]
if update or len(pkglist) or upgrade:
try:
cc.update_package_sources()
except subprocess.CalledProcessError as e:
log.warn("apt-get update failed")
log.debug(traceback.format_exc())
errors.append(e)
if upgrade:
try:
cc.apt_get("upgrade")
except subprocess.CalledProcessError as e:
log.warn("apt upgrade failed")
log.debug(traceback.format_exc())
errors.append(e)
if len(pkglist):
try:
cc.install_packages(pkglist)
except subprocess.CalledProcessError as e:
log.warn("Failed to install packages: %s " % pkglist)
log.debug(traceback.format_exc())
errors.append(e)
if len(errors):
raise errors[0]
return(True)
def mirror2lists_fileprefix(mirror):
file=mirror
# take of http:// or ftp://
if file.endswith("/"): file=file[0:-1]
pos=file.find("://")
if pos >= 0:
file=file[pos+3:]
file=file.replace("/","_")
return file
def rename_apt_lists(omirror,new_mirror,lists_d="/var/lib/apt/lists"):
oprefix="%s/%s" % (lists_d,mirror2lists_fileprefix(omirror))
nprefix="%s/%s" % (lists_d,mirror2lists_fileprefix(new_mirror))
if(oprefix==nprefix): return
olen=len(oprefix)
for file in glob.glob("%s_*" % oprefix):
os.rename(file,"%s%s" % (nprefix, file[olen:]))
def get_release():
stdout, stderr = subprocess.Popen(['lsb_release', '-cs'], stdout=subprocess.PIPE).communicate()
return(stdout.strip())
def generate_sources_list(codename, mirror):
util.render_to_file('sources.list', '/etc/apt/sources.list', \
{ 'mirror' : mirror, 'codename' : codename })
# srclist is a list of dictionaries,
# each entry must have: 'source'
# may have: key, ( keyid and keyserver)
def add_sources(srclist, searchList={ }):
elst = []
for ent in srclist:
if not ent.has_key('source'):
elst.append([ "", "missing source" ])
continue
source=ent['source']
if source.startswith("ppa:"):
try: util.subp(["add-apt-repository",source])
except:
elst.append([source, "add-apt-repository failed"])
continue
source = util.render_string(source, searchList)
if not ent.has_key('filename'):
ent['filename']='cloud_config_sources.list'
if not ent['filename'].startswith("/"):
ent['filename'] = "%s/%s" % \
("/etc/apt/sources.list.d/", ent['filename'])
if ( ent.has_key('keyid') and not ent.has_key('key') ):
ks = "keyserver.ubuntu.com"
if ent.has_key('keyserver'): ks = ent['keyserver']
try:
ent['key'] = util.getkeybyid(ent['keyid'], ks)
except:
elst.append([source,"failed to get key from %s" % ks])
continue
if ent.has_key('key'):
try: util.subp(('apt-key', 'add', '-'), ent['key'])
except:
elst.append([source, "failed add key"])
try: util.write_file(ent['filename'], source + "\n", omode="ab")
except:
elst.append([source, "failed write to file %s" % ent['filename']])
return(elst)
def find_apt_mirror(cloud, cfg):
""" find an apt_mirror given the cloud and cfg provided """
# TODO: distro and defaults should be configurable
distro = "ubuntu"
defaults = {
'ubuntu': "http://archive.ubuntu.com/ubuntu",
'debian': "http://archive.debian.org/debian",
}
mirror = None
cfg_mirror = cfg.get("apt_mirror",None)
if cfg_mirror:
mirror = cfg["apt_mirror"]
elif cfg.has_key("apt_mirror_search"):
mirror = util.search_for_mirror(cfg['apt_mirror_search'])
else:
if cloud:
mirror = cloud.get_mirror()
mydom = ""
doms = []
if not mirror and cloud:
# if we have a fqdn, then search its domain portion first
( hostname, fqdn ) = util.get_hostname_fqdn(cfg, cloud)
mydom = ".".join(fqdn.split(".")[1:])
if mydom:
doms.append(".%s" % mydom)
doms.extend((".localdomain", "",))
mirror_list = []
mirrorfmt = "http://%s-mirror%s/%s" % (distro, "%s", distro )
for post in doms:
mirror_list.append(mirrorfmt % post)
mirror = util.search_for_mirror(mirror_list)
if not mirror:
mirror = defaults[distro]
return mirror
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