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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
#
# Author: Avishai Ish-Shalom <avishai@fewbytes.com>
# Author: Mike Moulton <mike@meltmedia.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 json
import os
from cloudinit import templater
from cloudinit import url_helper
from cloudinit import util
RUBY_VERSION_DEFAULT = "1.8"
CHEF_DIRS = [
'/etc/chef',
'/var/log/chef',
'/var/lib/chef',
'/var/cache/chef',
'/var/backups/chef',
'/var/run/chef',
]
OMNIBUS_URL = "https://www.opscode.com/chef/install.sh"
def handle(name, cfg, cloud, log, _args):
if cloud.is_excluded(name):
return
# If there isn't a chef key in the configuration don't do anything
if 'chef' not in cfg:
log.debug(("Skipping module named %s,"
" no 'chef' key in configuration"), name)
return
chef_cfg = cfg['chef']
# Ensure the chef directories we use exist
for d in CHEF_DIRS:
util.ensure_dir(d)
# Set the validation key based on the presence of either 'validation_key'
# or 'validation_cert'. In the case where both exist, 'validation_key'
# takes precedence
for key in ('validation_key', 'validation_cert'):
if key in chef_cfg and chef_cfg[key]:
util.write_file('/etc/chef/validation.pem', chef_cfg[key])
break
# Create the chef config from template
template_fn = cloud.get_template_filename('chef_client.rb')
if template_fn:
iid = str(cloud.datasource.get_instance_id())
params = {
'server_url': chef_cfg['server_url'],
'node_name': util.get_cfg_option_str(chef_cfg, 'node_name', iid),
'environment': util.get_cfg_option_str(chef_cfg, 'environment',
'_default'),
'validation_name': chef_cfg['validation_name']
}
templater.render_to_file(template_fn, '/etc/chef/client.rb', params)
else:
log.warn("No template found, not rendering to /etc/chef/client.rb")
# set the firstboot json
initial_json = {}
if 'run_list' in chef_cfg:
initial_json['run_list'] = chef_cfg['run_list']
if 'initial_attributes' in chef_cfg:
initial_attributes = chef_cfg['initial_attributes']
for k in list(initial_attributes.keys()):
initial_json[k] = initial_attributes[k]
util.write_file('/etc/chef/firstboot.json', json.dumps(initial_json))
# If chef is not installed, we install chef based on 'install_type'
if (not os.path.isfile('/usr/bin/chef-client') or
util.get_cfg_option_bool(chef_cfg, 'force_install', default=False)):
install_type = util.get_cfg_option_str(chef_cfg, 'install_type',
'packages')
if install_type == "gems":
# this will install and run the chef-client from gems
chef_version = util.get_cfg_option_str(chef_cfg, 'version', None)
ruby_version = util.get_cfg_option_str(chef_cfg, 'ruby_version',
RUBY_VERSION_DEFAULT)
install_chef_from_gems(cloud.distro, ruby_version, chef_version)
# and finally, run chef-client
log.debug('Running chef-client')
util.subp(['/usr/bin/chef-client',
'-d', '-i', '1800', '-s', '20'], capture=False)
elif install_type == 'packages':
# this will install and run the chef-client from packages
cloud.distro.install_packages(('chef',))
elif install_type == 'omnibus':
url = util.get_cfg_option_str(chef_cfg, "omnibus_url", OMNIBUS_URL)
content = url_helper.readurl(url=url, retries=5)
with util.tempdir() as tmpd:
# use tmpd over tmpfile to avoid 'Text file busy' on execute
tmpf = "%s/chef-omnibus-install" % tmpd
util.write_file(tmpf, str(content), mode=0700)
util.subp([tmpf], capture=False)
else:
log.warn("Unknown chef install type %s", install_type)
def get_ruby_packages(version):
# return a list of packages needed to install ruby at version
pkgs = ['ruby%s' % version, 'ruby%s-dev' % version]
if version == "1.8":
pkgs.extend(('libopenssl-ruby1.8', 'rubygems1.8'))
return pkgs
def install_chef_from_gems(ruby_version, chef_version, distro):
distro.install_packages(get_ruby_packages(ruby_version))
if not os.path.exists('/usr/bin/gem'):
util.sym_link('/usr/bin/gem%s' % ruby_version, '/usr/bin/gem')
if not os.path.exists('/usr/bin/ruby'):
util.sym_link('/usr/bin/ruby%s' % ruby_version, '/usr/bin/ruby')
if chef_version:
util.subp(['/usr/bin/gem', 'install', 'chef',
'-v %s' % chef_version, '--no-ri',
'--no-rdoc', '--bindir', '/usr/bin', '-q'], capture=False)
else:
util.subp(['/usr/bin/gem', 'install', 'chef',
'--no-ri', '--no-rdoc', '--bindir',
'/usr/bin', '-q'], capture=False)
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