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# Copyright (C) 2008 Red Hat, Inc
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 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
# a long with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require 'rubygems'
require 'erb'
require 'yaml'
require 'restr'
require 'xmlrpc/client'
module GenomeBootstrap
class GenomeRepo
attr_reader :machines, :machine_types_url, :cobbler_profiles, :fqdn, :repo
def initialize(repo)
@repo = repo
@fqdn = @repo
@genomed = "http://#{@fqdn}/genome"
@machine_types_url = @genomed + "/machine_types.html"
@cobblerd = XMLRPC::Client.new2("http://#{@fqdn}/cobbler_api_rw")
# TODO: figure out a way to pass these values in
@token = @cobblerd.call2("login", "cobbler", "password")[1]
@cobbler_profiles = @cobblerd.call2("get_profiles", @token)[1].map {|p| p["name"]}
end
def machines
@machines ||= fetch_data
end
def facts_for(type)
# Don't want to pull in the genome lib. See below fore more detail.
facts = restr_get("#{@genomed}/machine_types/#{type}.xml", "fact")
return (!facts or facts.empty?) ? {} : facts.map do |f|
def f.name
self["name"]
end
def f.desc
self["description"]
end
# Here's where we make use of the DSL's simple templating
f.instance_variable_set(:@repo, @repo)
def f.default
# handle there case where there is no default
self["default"].gsub("%repo%", @repo) rescue ""
end
f
end
end
def bootstrapping_cobbler_profiles
@cobbler_profiles.delete_if{|profile|
profile.include?("__Appliance")
}
end
def classes_for(type)
restr_get("#{@genomed}/machine_types/#{type}.xml", "class")
end
def fetch_data
# Build out some mock objects so we don't have to couple to the genome
# lib. That lib has lots of funky metaprogramming stuff in it and it
# might need to be changed in the future. The fewer tools relying on it
# the better.
machine_types = restr_get("#{@genomed}/machine_types.xml", "machine_type")
return machine_types.map do |m|
def m.name
self["name"]
end
def m.desc
self["description"]
end
m
end
end
def post_yaml(node_name, machine_type, yaml)
Restr.post("#{@genomed}/nodes", :node_name => node_name, :yaml => yaml)
end
def add_system_to_cobbler(name, params, email)
system_id = @cobblerd.call2("new_system", @token)[1]
@cobblerd.call2('modify_system', system_id, 'name', name, @token)
@cobblerd.call2('modify_system', system_id, 'profile', params["cobbler_profile"], @token)
# These values ultimately get used by genome-firstboot
ksmeta = "fqdn=#{name} " +
"genome_repo=#{@fqdn}"
ksmeta << " email=#{email}" if email
@cobblerd.call2('modify_system', system_id, 'ksmeta', ksmeta, @token)
@cobblerd.call2('save_system', system_id, @token)
end
def register_machine(machine_fqdn, config, email="")
machine_type = config["parameters"]["genome_machine_type"]
post_yaml(machine_fqdn, machine_type, YAML.dump(config))
add_system_to_cobbler(machine_fqdn, config["parameters"], email)
end
def get_system_ip(system_name, max_tries=1)
status = 1.upto(max_tries) do
# Technically the yield should be after the remote call, but it would
# trip up the 'find'
yield if block_given?
data = @cobblerd.call2("get_status")[1].find do |ip, s|
s[2] == "system:%s" % system_name && s[5] =~ /^installing/
end
# This returns from the block
break data unless data.nil?
end
return status.nil? ? nil : status[0]
end
# This is a workaround for a Restr "feature". Restr does not set
# 'forcearray => true' for it's XmlSimple instance. This means exactly
# what you would think. We always want to work with arrays since puppet's
# external nodes cares what data structures are used.
def restr_get(url, xml_node=nil)
data = xml_node ? Restr.get(url)[xml_node] : Restr.get(url)
return case data
when nil, Array
data
else
Array.new << data
end
end
end
class CloudController
attr_reader :repo, :cloud
# Create a new CloudController with the given server name (prefix or fqdn)
# and repo (full GenomeRepo object)
def initialize(name, repo)
@repo = repo
# If @repo is not an GenomeRepo object, assume it's the
# fqdn of a repo
if not @repo.is_a? GenomeRepo then
@repo = GenomeRepo.new(@repo)
end
@cloud = "http://#{name}/cloud"
end
def create_machine(system_name, email)
return Restr.post("#{@cloud}/koan", :system_name => system_name, :repo => @repo.fqdn, :email => email).split(":")
end
def update_hostname(id, hostname)
Restr.post("#{@cloud}/koan", :machine_id => id, :hostname => hostname)
end
end
end
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