Add OpenStack support to knife-server command.

This commit adds the support necessary to use all of the bootstrap
commands against an OpenStack endpoint for launching new instances of
Chef Server. It utilizes the knife-openstack plugin, similar to how
Linode does, and adds the appropriate credentials.

README.md

@@ -50,6 +50,18 @@ knife server bootstrap linode \
   --ssh-password 'testing1234'
 ```
 
+To spin up your Chef Server on [OpenStack][openstack]:
+
+```bash
+knife server bootstrap openstack \
+  --node-name openstack.example.com \
+  --openstack-node-name openstack \
+  --openstack-username $OS_USERNAME \
+  --openstack-password $OS_PASSWORD \
+  --openstack-auth-url $OS_AUTH_URL \
+  --ssh-password 'testing1234'
+``
+
 Or maybe you want to try out a Chef Server using [Vagrant][vagrant_site]?
 
 ```bash
@@ -403,6 +415,15 @@ to make future cloud adapter support easier to add.
 Provisions a Linode instance and sets up an Open Source Chef Server as
 described [above](#knife-server-bootstrap).
 
+### <a name="knife-server-bootstrap-openstack"></a> knife server bootstrap openstack
+
+**Note:** You must install the [knife-openstack gem][knife-openstack] to use this
+subcommand. This was done to keep the dependencies of this library lighter and
+to make future cloud adapter support easier to add.
+
+Provisions a Openstack instance and sets up an Open Source Chef Server as
+described [above](#knife-server-bootstrap).
+
 #### Configuration
 
 This subcommand imports all relavent options from the knife-linode gem. For
@@ -622,5 +643,7 @@ Apache License, Version 2.0 (see [LICENSE][license])
 [install_chef]:             http://www.opscode.com/chef/install/
 [knife-ec2]:                https://github.com/opscode/knife-ec2
 [knife-linode]:             https://github.com/opscode/knife-linode
+[knife-openstack]:          https://github.com/opscode/knife-openstack
 [stevendanna]:              https://github.com/stevendanna
 [vagrant_site]:             http://vagrantup.com/
+[openstack]:    http://openstack.org

knife-server.gemspec

@@ -25,6 +25,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency "rake"
   gem.add_development_dependency "knife-ec2", ">= 0.5.12"
   gem.add_development_dependency "knife-linode"
+  gem.add_development_dependency "knife-openstack"
 
   gem.add_development_dependency "rspec", "~> 3.0"
   gem.add_development_dependency "fakefs", "~> 0.4"

lib/chef/knife/server_bootstrap_openstack.rb

@@ -0,0 +1,122 @@
+#
+# Author:: John Bellone (<jbellone@bloomberg.net>)
+# Copyright:: Copyright (c) 2014 Bloomberg Finance L.P.
+# License:: Apache License, Version 2.0
+#
+# 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.
+#
+
+require 'chef/knife/server_bootstrap_base'
+
+class Chef
+  class Knife
+    class ServerBootstrapOpenstack < Knife
+
+      banner "knife server bootstrap openstack (options)"
+
+      include Knife::ServerBootstrapBase
+
+      deps do
+        require 'knife/server/ssh'
+        require 'knife/server/credentials'
+
+        begin
+          require 'chef/knife/openstack_server_create'
+          require 'fog'
+          Chef::Knife::OpenstackServerCreate.load_deps
+
+          current_options = self.options
+          self.options = Chef::Knife::OpenstackServerCreate.options.dup
+          self.options.merge!(current_options)
+        rescue LoadError => ex
+          ui.error [
+            "Knife plugin knife-openstack could not be loaded.",
+            "Please add the knife-openstack gem to your Gemfile or",
+            "install the gem manually with `gem install knife-openstack'.",
+            "(#{ex.message})"
+          ].join(" ")
+          exit 1
+        end
+      end
+
+      def run
+        validate!
+        openstack_bootstrap.run
+        fetch_validation_key
+        create_root_client
+        install_client_key
+      end
+
+      def openstack_bootstrap
+        ENV['WEBUI_PASSWORD'] = config_val(:webui_password)
+        ENV['AMQP_PASSWORD'] = config_val(:amqp_password)
+        ENV['NO_TEST'] = "1" if config[:no_test]
+        bootstrap = Chef::Knife::OpenstackServerCreate.new
+        Chef::Knife::OpenstackServerCreate.options.keys.each do |attr|
+          value = config_val(attr)
+          bootstrap.config[attr] = value unless ((value.is_a?(Array) and value[1].nil?) or value.nil?)
+        end
+        bootstrap.config[:distro] = bootstrap_distro
+        bootstrap
+      end
+
+      def openstack_connection
+        @openstack_connection ||= Fog::Compute.new(
+          :provider => :openstack,
+          :openstack_username => config_val(:openstack_username),
+          :openstack_password => config_val(:openstack_password),
+          :openstack_auth_url => config_val(:openstack_auth_url),
+          :openstack_tenant => config_val(:openstack_tenant),
+          :openstack_region => config_val(:openstack_region)
+        )
+      end
+
+      def server_ip_address
+        server = openstack_connection.servers.find do |s|
+          s.status == 1 && s.name == config_val(:openstack_node_name)
+        end
+
+        server && server.public_ip_address
+      end
+
+      private
+
+      def validate!
+        if config[:chef_node_name].nil?
+          ui.error "You did not provide a valid --node-name value."
+          exit 1
+        end
+        if config_val(:platform) == "auto"
+          ui.error "Auto platform mode cannot be used with knife-openstack plugin"
+          exit 1
+        end
+      end
+
+      def ssh_connection
+        opts = {
+          :host     => server_ip_address,
+          :user     => config_val(:ssh_user),
+          :port     => config_val(:ssh_port),
+          :keys     => [config_val(:identity_file)].compact,
+          :password => config_val(:ssh_password)
+        }
+        if config_val(:host_key_verify) == false
+          opts[:user_known_hosts_file] = "/dev/null"
+          opts[:paranoid] = false
+        end
+
+        ::Knife::Server::SSH.new(opts)
+      end
+    end
+  end
+end