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Diffstat (limited to 'cloudinit/handlers/cc_chef.py')
| -rw-r--r-- | cloudinit/handlers/cc_chef.py | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/cloudinit/handlers/cc_chef.py b/cloudinit/handlers/cc_chef.py new file mode 100644 index 00000000..941e04fe --- /dev/null +++ b/cloudinit/handlers/cc_chef.py @@ -0,0 +1,119 @@ +# 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 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 'chef' not in cfg: + 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 + for key in ('validation_key', 'validation_cert'): + if key in chef_cfg and chef_cfg[key]: + with open('/etc/chef/validation.pem', 'w') as validation_key_fh: + validation_key_fh.write(chef_cfg[key]) + break + + # 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 '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 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) |