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# vi: ts=4 expandtab
#
# Copyright (C) 2009-2010 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
#
# Author: Scott Moser <scott.moser@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 glob
import os
from cloudinit import templater
from cloudinit import util
distros = ['ubuntu', 'debian']
PROXY_TPL = "Acquire::HTTP::Proxy \"%s\";\n"
PROXY_FN = "/etc/apt/apt.conf.d/95cloud-init-proxy"
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, cloud, log)
old_mir = util.get_cfg_option_str(cfg, 'apt_old_mirror',
"archive.ubuntu.com/ubuntu")
rename_apt_lists(old_mir, mirror)
# Set up any apt proxy
proxy = cfg.get("apt_proxy", None)
proxy_filename = PROXY_FN
if proxy:
try:
# See man 'apt.conf'
contents = PROXY_TPL % (proxy)
util.write_file(cloud.paths.join(False, proxy_filename),
contents)
except Exception as e:
util.logexc(log, "Failed to write proxy to %s", proxy_filename)
elif os.path.isfile(proxy_filename):
util.del_file(proxy_filename)
# Process 'apt_sources'
if 'apt_sources' in cfg:
errors = add_sources(cloud, cfg['apt_sources'],
{'MIRROR': mirror, 'RELEASE': release})
for e in errors:
log.warn("Source Error: %s", ':'.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:
util.logexc(log, "Failed to run debconf-set-selections")
pkglist = util.get_cfg_option_list(cfg, 'packages', [])
errors = []
if update or len(pkglist) or upgrade:
try:
cloud.distro.update_package_sources()
except Exception as e:
util.logexc(log, "Package update failed")
errors.append(e)
if upgrade:
try:
cloud.distro.package_command("upgrade")
except Exception as e:
util.logexc(log, "Package upgrade failed")
errors.append(e)
if len(pkglist):
try:
cloud.distro.install_packages(pkglist)
except Exception as e:
util.logexc(log, "Failed to install packages: %s ", pkglist)
errors.append(e)
if len(errors):
log.warn("%s failed with exceptions, re-raising the last one",
len(errors))
raise errors[-1]
def mirror2lists_fileprefix(mirror):
string = mirror
# take of http:// or ftp://
if string.endswith("/"):
string = string[0:-1]
pos = string.find("://")
if pos >= 0:
string = string[pos + 3:]
string = string.replace("/", "_")
return string
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 filename in glob.glob("%s_*" % oprefix):
# TODO use the cloud.paths.join...
util.rename(filename, "%s%s" % (nprefix, filename[olen:]))
def get_release():
(stdout, _stderr) = util.subp(['lsb_release', '-cs'])
return stdout.strip()
def generate_sources_list(codename, mirror, cloud, log):
template_fn = cloud.get_template_filename('sources.list')
if template_fn:
params = {'mirror': mirror, 'codename': codename}
out_fn = cloud.paths.join(False, '/etc/apt/sources.list')
templater.render_to_file(template_fn, out_fn, params)
else:
log.warn("No template found, not rendering /etc/apt/sources.list")
def add_sources(cloud, srclist, template_params=None):
"""
add entries in /etc/apt/sources.list.d for each abbreviated
sources.list entry in 'srclist'. When rendering template, also
include the values in dictionary searchList
"""
if template_params is None:
template_params = {}
errorlist = []
for ent in srclist:
if 'source' not in ent:
errorlist.append(["", "missing source"])
continue
source = ent['source']
if source.startswith("ppa:"):
try:
util.subp(["add-apt-repository", source])
except:
errorlist.append([source, "add-apt-repository failed"])
continue
source = templater.render_string(source, template_params)
if 'filename' not in ent:
ent['filename'] = 'cloud_config_sources.list'
if not ent['filename'].startswith("/"):
ent['filename'] = os.path.join("/etc/apt/sources.list.d/",
ent['filename'])
if ('keyid' in ent and 'key' not in ent):
ks = "keyserver.ubuntu.com"
if 'keyserver' in ent:
ks = ent['keyserver']
try:
ent['key'] = util.getkeybyid(ent['keyid'], ks)
except:
errorlist.append([source, "failed to get key from %s" % ks])
continue
if 'key' in ent:
try:
util.subp(('apt-key', 'add', '-'), ent['key'])
except:
errorlist.append([source, "failed add key"])
try:
contents = "%s\n" % (source)
util.write_file(cloud.paths.join(False, ent['filename']),
contents, omode="ab")
except:
errorlist.append([source,
"failed write to file %s" % ent['filename']])
return errorlist
def find_apt_mirror(cloud, cfg):
""" find an apt_mirror given the cloud and cfg provided """
mirror = None
cfg_mirror = cfg.get("apt_mirror", None)
if cfg_mirror:
mirror = cfg["apt_mirror"]
elif "apt_mirror_search" in cfg:
mirror = util.search_for_mirror(cfg['apt_mirror_search'])
else:
mirror = cloud.get_local_mirror()
mydom = ""
doms = []
if not mirror:
# 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)
if not mirror:
doms.extend((".localdomain", "",))
mirror_list = []
distro = cloud.distro.name
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 = cloud.distro.get_package_mirror()
return mirror
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