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require 'server_interfaces'
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class ComputeResource < ActiveRecord::Base
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PROVIDERS = %w[ Libvirt Ovirt EC2 Vmware ]
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acts_as_audited :except => [:password]
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# to STI avoid namespace issues when loading the class, we append Foreman::Model in our database type column
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STI_PREFIX= "Foreman::Model"
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include Authorization
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validates_format_of :name, :with => /\A(\S+)\Z/, :message => "can't be blank or contain white spaces."
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validates_uniqueness_of :name
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validates_presence_of :provider, :in => PROVIDERS
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validates_presence_of :url
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scoped_search :on => :name, :complete_value => :true
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before_save :sanitize_url
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has_many :hosts
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# allows to create a specific compute class based on the provider.
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def self.new_provider args
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raise "must provider a provider" unless provider = args[:provider]
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PROVIDERS.each do |p|
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return eval("#{STI_PREFIX}::#{p}").new(args) if p.downcase == provider.downcase
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end
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raise "unknown Provider"
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end
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def test_connection
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valid?
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end
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def save_vm uuid, attr
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vm = find_vm_by_uuid(uuid)
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vm.attributes.merge!(attr.symbolize_keys)
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vm.save
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end
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def to_param
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"#{id}-#{name.parameterize}"
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end
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def to_label
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"#{name} (#{provider_friendly_name})"
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end
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def provider_friendly_name
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%w[ Libvirt oVirt EC2 VMWare ][PROVIDERS.index(provider)]
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end
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# returns a new fog server instance
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def new_vm attr={}
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client.servers.new vm_instance_defaults.merge(attr)
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end
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# return fog new interface ( network adapter )
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def new_interface attr={}
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client.interfaces.new attr
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end
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# return a list of virtual machines
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def vms
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client.servers
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end
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def find_vm_by_uuid uuid
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client.servers.get(uuid) || raise(ActiveRecord::RecordNotFound)
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end
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def start_vm uuid
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find_vm_by_uuid(uuid).start
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end
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def stop_vm uuid
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find_vm_by_uuid(uuid).stop
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end
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def create_vm args = {}
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client.servers.create vm_instance_defaults.merge(args.to_hash)
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rescue Fog::Errors::Error => e
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errors.add(:base, e.to_s)
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false
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end
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def destroy_vm uuid
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find_vm_by_uuid(uuid).destroy
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end
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def provider
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read_attribute(:type).to_s.gsub("#{STI_PREFIX}::","")
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end
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def provider=(value)
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if PROVIDERS.include? value
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self.type = "#{STI_PREFIX}::#{value}"
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end
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end
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def vm_instance_defaults
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{
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'name' => "foreman_#{Time.now.to_i}",
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}
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end
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def hardware_profiles(opts={})
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end
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def hardware_profile(id,opts={})
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end
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def update_required?(old_attrs, new_attrs)
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old_attrs.merge(new_attrs) do |k,old_v,new_v|
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update_required?(old_v, new_v) if old_v.is_a?(Hash)
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return true unless old_v == new_v
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new_v
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end
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false
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end
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def as_json(options={})
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super({:except => [:password]}.merge(options))
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end
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def console uuid = nil
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raise "#{provider} console is not supported at this time"
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end
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protected
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def client
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raise "Not implemented"
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end
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def sanitize_url
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self.url.chomp!("/") unless url.empty?
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end
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def random_password
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n = 8
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chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
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(0...n).map { chars[rand(chars.length)].chr }.join
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end
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def nested_attributes_for type, opts
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return [] unless opts
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opts = opts.dup #duplicate to prevent changing the origin opts.
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opts.delete("new_#{type}") # delete template
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# convert our options hash into a sorted array (e.g. to preserve nic / disks order)
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opts = opts.sort { |l, r| l[0].sub('new_','').to_i <=> r[0].sub('new_','').to_i }.map { |e| Hash[e[1]] }
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opts.map do |v|
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if v[:"_delete"] == '1' && v[:id].nil?
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nil
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else
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v.symbolize_keys # convert to symbols deeper hashes
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end
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end.compact
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end
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end
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