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# vi: ts=4 expandtab
#
# Author: Avishai Ish-Shalom <avishai@fewbytes.com>
# Author: Mike Moulton <mike@meltmedia.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 subprocess
import json
import cloudinit.CloudConfig as cc
import cloudinit.util as util
ruby_version_default = "1.8"
def handle(_name,cfg,cloud,log,_args):
# If there isn't a chef key in the configuration don't do anything
if not cfg.has_key('chef'): return
chef_cfg = cfg['chef']
# ensure the chef directories we use exist
mkdirs(['/etc/chef', '/var/log/chef', '/var/lib/chef',
'/var/cache/chef', '/var/backups/chef', '/var/run/chef'])
# 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
if chef_cfg.has_key('validation_key') or chef_cfg.has_key('validation_cert'):
validation_key = util.get_cfg_option_str(chef_cfg, 'validation_key',
chef_cfg['validation_cert'])
with open('/etc/chef/validation.pem', 'w') as validation_key_fh:
validation_key_fh.write(validation_key)
validation_name = chef_cfg.get('validation_name','chef-validator')
# create the chef config from template
util.render_to_file('chef_client.rb', '/etc/chef/client.rb',
{'server_url': chef_cfg['server_url'],
'node_name': util.get_cfg_option_str(chef_cfg, 'node_name',
cloud.datasource.get_instance_id()),
'environment': util.get_cfg_option_str(chef_cfg, 'environment',
'_default'),
'validation_name': chef_cfg['validation_name']})
# set the firstboot json
with open('/etc/chef/firstboot.json', 'w') as firstboot_json_fh:
initial_json = {}
if chef_cfg.has_key('run_list'):
initial_json['run_list'] = chef_cfg['run_list']
if chef_cfg.has_key('initial_attributes'):
initial_attributes = chef_cfg['initial_attributes']
for k in initial_attributes.keys(): initial_json[k] = initial_attributes[k]
firstboot_json_fh.write(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'):
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(ruby_version, chef_version)
# and finally, run chef-client
log.debug('running chef-client')
subprocess.check_call(['/usr/bin/chef-client', '-d', '-i', '1800', '-s', '20'])
else:
# this will install and run the chef-client from packages
cc.install_packages(('chef',))
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 = None):
cc.install_packages(get_ruby_packages(ruby_version))
if not os.path.exists('/usr/bin/gem'):
os.symlink('/usr/bin/gem%s' % ruby_version, '/usr/bin/gem')
if not os.path.exists('/usr/bin/ruby'):
os.symlink('/usr/bin/ruby%s' % ruby_version, '/usr/bin/ruby')
if chef_version:
subprocess.check_call(['/usr/bin/gem','install','chef',
'-v %s' % chef_version, '--no-ri',
'--no-rdoc','--bindir','/usr/bin','-q'])
else:
subprocess.check_call(['/usr/bin/gem','install','chef',
'--no-ri','--no-rdoc','--bindir',
'/usr/bin','-q'])
def ensure_dir(d):
if not os.path.exists(d):
os.makedirs(d)
def mkdirs(dirs):
for d in dirs:
ensure_dir(d)
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