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Diffstat (limited to 'cloudinit/config/chef.py')
| -rw-r--r-- | cloudinit/config/chef.py | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/cloudinit/config/chef.py b/cloudinit/config/chef.py new file mode 100644 index 00000000..4e8ef346 --- /dev/null +++ b/cloudinit/config/chef.py @@ -0,0 +1,128 @@ +# 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 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: + log.debug(("Skipping transform named %s," + " no 'chef' key in configuration"), name) + return + chef_cfg = cfg['chef'] + + # Ensure the chef directories we use exist + c_dirs = [ + '/etc/chef', + '/var/log/chef', + '/var/lib/chef', + '/var/cache/chef', + '/var/backups/chef', + '/var/run/chef', + ] + for d in c_dirs: + util.ensure_dir(cloud.paths.join(False, 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]: + v_fn = cloud.paths.join(False, '/etc/chef/validation.pem') + util.write_file(v_fn, 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'] + } + out_fn = cloud.paths.join(False, '/etc/chef/client.rb') + templater.render_to_file(template_fn, out_fn, 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] + firstboot_fn = cloud.paths.join(False, '/etc/chef/firstboot.json') + util.write_file(firstboot_fn, 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(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']) + elif install_type == 'packages': + # this will install and run the chef-client from packages + cloud.distro.install_packages(('chef',)) + 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']) + else: + util.subp(['/usr/bin/gem', 'install', 'chef', + '--no-ri', '--no-rdoc', '--bindir', + '/usr/bin', '-q']) |