|
module Orchestration::TFTP
|
|
extend ActiveSupport::Concern
|
|
|
|
included do
|
|
after_validation :validate_tftp, :queue_tftp
|
|
before_destroy :queue_tftp_destroy
|
|
|
|
# required for pxe template url helpers
|
|
include Rails.application.routes.url_helpers
|
|
end
|
|
|
|
def tftp?
|
|
!!(subnet and subnet.tftp?) and (operatingsystem and operatingsystem.pxe_variant) and managed? and capabilities.include?(:build)
|
|
end
|
|
|
|
def tftp
|
|
subnet.tftp_proxy(:variant => operatingsystem.pxe_variant) if tftp?
|
|
end
|
|
|
|
protected
|
|
|
|
# Adds the host to the forward and reverse TFTP zones
|
|
# +returns+ : Boolean true on success
|
|
def setTFTP
|
|
logger.info "Add the TFTP configuration for #{name}"
|
|
tftp.set mac, :pxeconfig => generate_pxe_template
|
|
rescue => e
|
|
failure _("Failed to set TFTP: %s") % proxy_error(e)
|
|
end
|
|
|
|
# Removes the host from the forward and reverse TFTP zones
|
|
# +returns+ : Boolean true on success
|
|
def delTFTP
|
|
logger.info "Delete the TFTP configuration for #{name}"
|
|
tftp.delete mac
|
|
rescue => e
|
|
failure _("Failed to delete TFTP: %s") % proxy_error(e)
|
|
end
|
|
|
|
def setTFTPBootFiles
|
|
logger.info "Fetching required TFTP boot files for #{name}"
|
|
valid = true
|
|
operatingsystem.pxe_files(medium, architecture).each do |bootfile_info|
|
|
for prefix, path in bootfile_info do
|
|
valid = false unless tftp.fetch_boot_file(:prefix => prefix.to_s, :path => path)
|
|
end
|
|
end
|
|
failure _("Failed to fetch boot files") unless valid
|
|
valid
|
|
rescue => e
|
|
failure _("Failed to fetch boot files: %s") % proxy_error(e)
|
|
end
|
|
|
|
#empty method for rollbacks
|
|
def delTFTPBootFiles
|
|
end
|
|
|
|
private
|
|
|
|
def validate_tftp
|
|
return unless tftp?
|
|
return unless operatingsystem
|
|
return if Rails.env == "test"
|
|
if configTemplate({:kind => operatingsystem.template_kind}).nil? and configTemplate({:kind => "iPXE"}).nil?
|
|
failure _("No %{template_kind} templates were found for this host, make sure you define at least one in your %{os} settings") % { :template_kind => operatingsystem.template_kind, :os => os }
|
|
end
|
|
end
|
|
|
|
def generate_pxe_template
|
|
# this is the only place we generate a template not via a web request
|
|
# therefore some workaround is required to "render" the template.
|
|
|
|
prefix = operatingsystem.pxe_prefix(arch)
|
|
@kernel = os.kernel(arch)
|
|
@initrd = os.initrd(arch)
|
|
# work around for ensuring that people can use @host as well, as tftp templates were usually confusing.
|
|
@host = self
|
|
if build?
|
|
pxe_render configTemplate({:kind => os.template_kind}).template
|
|
else
|
|
if os.template_kind == "PXEGrub"
|
|
pxe_render ConfigTemplate.find_by_name("PXEGrub default local boot").template
|
|
else
|
|
pxe_render ConfigTemplate.find_by_name("PXELinux default local boot").template
|
|
end
|
|
end
|
|
rescue => e
|
|
failure _("Failed to generate %{template_kind} template: %{e}") % { :template_kind => os.template_kind, :e => e }
|
|
end
|
|
|
|
def queue_tftp
|
|
return unless tftp? and errors.empty?
|
|
# Jumpstart builds require only minimal tftp services. They do require a tftp object to query for the boot_server.
|
|
return true if jumpstart?
|
|
new_record? ? queue_tftp_create : queue_tftp_update
|
|
end
|
|
|
|
def queue_tftp_create
|
|
queue.create(:name => _("TFTP Settings for %s") % self, :priority => 20,
|
|
:action => [self, :setTFTP])
|
|
return unless build
|
|
queue.create(:name => _("Fetch TFTP boot files for %s") % self, :priority => 25,
|
|
:action => [self, :setTFTPBootFiles])
|
|
end
|
|
|
|
def queue_tftp_update
|
|
set_tftp = false
|
|
# we switched build mode
|
|
set_tftp = true if old.build? != build?
|
|
# medium or arch changed
|
|
set_tftp = true if old.medium != medium or old.arch != arch
|
|
# operating system changed
|
|
set_tftp = true if os and old.os and (old.os.name != os.name or old.os != os)
|
|
# MAC address changed
|
|
if mac != old.mac
|
|
set_tftp = true
|
|
# clean up old TFTP reservation file
|
|
if old.tftp?
|
|
queue.create(:name => _("Remove old TFTP Settings for %s") % old, :priority => 19,
|
|
:action => [old, :delTFTP])
|
|
end
|
|
end
|
|
queue_tftp_create if set_tftp
|
|
end
|
|
|
|
def queue_tftp_destroy
|
|
return unless tftp? and errors.empty?
|
|
return true if jumpstart?
|
|
queue.create(:name => _("TFTP Settings for %s") % self, :priority => 20,
|
|
:action => [self, :delTFTP])
|
|
end
|
|
|
|
end
|
