Description =========== This cookbook provides common setup recipes, helper methods and attributes that describe an OpenStack deployment as part of the OpenStack reference deployment Chef for OpenStack. Requirements ============ * Chef 0.10.0 or higher required (for Chef environment use). Cookbooks --------- The following cookbooks are dependencies: * apt * database Attributes ========== Please see the extensive inline documentation in `attributes/default.rb` for descriptions of all the settable attributes for this cookbook. Note that all attributes are in the `default["openstack"]` "namespace" Libraries ========= This cookbook exposes a set of default library routines: * `endpoint` -- Used to return a `::URI` object representing the named OpenStack endpoint * `endpoints` -- Useful for operating on all OpenStack endpoints * `db` -- Returns a Hash of information about a named OpenStack database * `db_uri` -- Returns the SQLAlchemy RFC-1738 DB URI (see: http://rfc.net/rfc1738.html) for a named OpenStack database * `db_create_with_user` -- Creates a database and database user for a named OpenStack database * `secret` -- Returns the value of an encrypted data bag for a named OpenStack secret key and key-section * `db_password` -- Ease-of-use helper that returns the decrypted database password for a named OpenStack database * `service_password` -- Ease-of-use helper that returns the decrypted service password for named OpenStack service * `user_password` -- Ease-of-use helper that returns the decrypted password for a Keystone user Usage ----- default ---- Installs/Configures common recipes ```json "run_list": [ "recipe[openstack-common]" ] ``` logging ---- Installs/Configures common logging ```json "run_list": [ "recipe[openstack-common::logging]" ] ``` The following are code examples showing the above library routines in action. Remember when using the library routines exposed by this library to include the Openstack routines in your recipe's `::Chef::Recipe` namespace, like so: ```ruby class ::Chef::Recipe include ::Openstack end ``` Example of using the `endpoint` routine: ```ruby nova_api_ep = endpoint "compute-api" ::Chef::Log.info("Using Openstack Compute API endpoint at #{nova_api_ep.to_s}") # Note that endpoint URIs may contain variable interpolation markers such # as `%(tenant_id)s`, so you may need to decode them. Do so like this: require "uri" puts ::URI.decode nova_api_ap.to_s ``` Example of using the `db_password` and `db_uri` routine: ```ruby db_pass = db_password "cinder" db_user = node["cinder"]["db"]["user"] sql_connection = db_uri "volume", db_user, db_pass template "/etc/cinder/cinder.conf" do source "cinder.conf.erb" owner node["cinder"]["user"] group node["cinder"]["group"] mode 00644 variables( "sql_connection" => sql_connection ) end ``` OpenStack Role Operations ------------------------- To find a hash (or partial hash) of configuration information given a named Chef role, use the `Openstack::config_by_role` routine. This routine takes as its first parameter the name of the Chef role to look for. An optional second parameter is the section of the node hash to return. If nil, the whole node hash is returned. ```ruby role_name = node["openstack"]["chef_roles"]["identity_server"] identity_conf = ::Openstack::config_by_role(role_name) identity_conf_creds_section = ::Openstack::config_by_role(role_name, "creds") ``` URI Operations -------------- Use the `Openstack::uri_from_hash` routine to helpfully return a `::URI::Generic` object for a hash that contains any of the following keys: * `host` * `uri` * `port` * `path` * `scheme` If the `uri` key is in the hash, that will be used as the URI, otherwise the URI will be constructed from the various parts of the hash corresponding to the keys above. ```ruby # Suppose node hash contains the following subhash in the :identity_service key: # { # :host => 'identity.example.com', # :port => 5000, # :scheme => 'https' # } uri = ::Openstack::uri_from_hash(node[:identity_service]) # uri.to_s would == "https://identity.example.com:5000" ``` The routine will return nil if neither a `uri` or `host` key exists in the supplied hash. Using the library without prefixing with ::Openstack ---------------------------------------------------- Don't like prefixing calls to the library's routines with `::Openstack`? Do this: ```ruby class ::Chef::Recipe include ::Openstack end ``` in your recipe. Testing ===== This cookbook uses [bundler](http://gembundler.com/), [berkshelf](http://berkshelf.com/), and [strainer](https://github.com/customink/strainer) to isolate dependencies and run tests. Tests are defined in Strainerfile. To run tests: $ bundle install # install gem dependencies $ bundle exec berks install # install cookbook dependencies $ bundle exec strainer test # run tests License and Author ================== | | | |:---------------------|:---------------------------------------------------| | **Author** | Jay Pipes () | | **Author** | John Dewey () | | **Author** | Matt Ray () | | **Author** | Craig Tracey () | | **Author** | Sean Gallagher () | | | | | **Copyright** | Copyright (c) 2012-2013, AT&T Services, Inc. | | **Copyright** | Copyright (c) 2013, Opscode, Inc. | | **Copyright** | Copyright (c) 2013, Craig Tracey | Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.