belongs_to(:job, foreign_key: :job_uuid, primary_key: :uuid)
attr_accessor :job_readable
- @@max_compute_nodes = Rails.configuration.max_compute_nodes
- @@dns_server_conf_dir = Rails.configuration.dns_server_conf_dir
- @@dns_server_conf_template = Rails.configuration.dns_server_conf_template
- @@dns_server_reload_command = Rails.configuration.dns_server_reload_command
- @@uuid_prefix = Rails.configuration.uuid_prefix
- @@domain = Rails.configuration.compute_node_domain rescue `hostname --domain`.strip
- @@nameservers = Rails.configuration.compute_node_nameservers
-
api_accessible :user, :extend => :common do |t|
t.add :hostname
t.add :domain
api_accessible :superuser, :extend => :user do |t|
t.add :first_ping_at
t.add :info
- t.add lambda { |x| @@nameservers }, :as => :nameservers
+ t.add lambda { |x| Rails.configuration.compute_node_nameservers }, :as => :nameservers
end
def domain
- super || @@domain
+ super || Rails.configuration.compute_node_domain
end
def api_job_uuid
rescue ActiveRecord::RecordNotUnique
try_slot += 1
end
- raise "No available node slots" if try_slot == @@max_compute_nodes
+ raise "No available node slots" if try_slot == Rails.configuration.max_compute_nodes
end while true
self.hostname = self.class.hostname_for_slot(self.slot_number)
end
end
end
- def self.dns_server_update(hostname, ip_address)
- return unless @@dns_server_conf_dir and @@dns_server_conf_template
+ def self.dns_server_update hostname, ip_address
+ ok = true
+
ptr_domain = ip_address.
split('.').reverse.join('.').concat('.in-addr.arpa')
- hostfile = File.join @@dns_server_conf_dir, "#{hostname}.conf"
- begin
- template = IO.read(@@dns_server_conf_template)
- rescue => e
- STDERR.puts "Unable to read dns_server_conf_template #{@@dns_server_conf_template}: #{e.message}"
- return
- end
+ template_vars = {
+ hostname: hostname,
+ uuid_prefix: Rails.configuration.uuid_prefix,
+ ip_address: ip_address,
+ ptr_domain: ptr_domain,
+ }
- populated = template % {hostname:hostname, uuid_prefix:@@uuid_prefix, ip_address:ip_address, ptr_domain:ptr_domain}
+ if Rails.configuration.dns_server_conf_dir and Rails.configuration.dns_server_conf_template
+ begin
+ begin
+ template = IO.read(Rails.configuration.dns_server_conf_template)
+ rescue => e
+ logger.error "Reading #{Rails.configuration.dns_server_conf_template}: #{e.message}"
+ raise
+ end
- begin
- File.open hostfile, 'w' do |f|
- f.puts populated
+ hostfile = File.join Rails.configuration.dns_server_conf_dir, "#{hostname}.conf"
+ File.open hostfile+'.tmp', 'w' do |f|
+ f.puts template % template_vars
+ end
+ File.rename hostfile+'.tmp', hostfile
+ rescue => e
+ logger.error "Writing #{hostfile}: #{e.message}"
+ ok = false
end
- rescue => e
- STDERR.puts "Unable to write #{hostfile}: #{e.message}"
- return
end
- File.open(File.join(@@dns_server_conf_dir, 'restart.txt'), 'w') do |f|
- # this will trigger a dns server restart
- f.puts @@dns_server_reload_command
+
+ if Rails.configuration.dns_server_update_command
+ cmd = Rails.configuration.dns_server_update_command % template_vars
+ if not system cmd
+ logger.error "dns_server_update_command #{cmd.inspect} failed: #{$?}"
+ ok = false
+ end
end
+
+ if Rails.configuration.dns_server_conf_dir and Rails.configuration.dns_server_reload_command
+ restartfile = File.join(Rails.configuration.dns_server_conf_dir, 'restart.txt')
+ begin
+ File.open(restartfile, 'w') do |f|
+ # Typically, this is used to trigger a dns server restart
+ f.puts Rails.configuration.dns_server_reload_command
+ end
+ rescue => e
+ logger.error "Unable to write #{restartfile}: #{e.message}"
+ ok = false
+ end
+ end
+
+ ok
end
def self.hostname_for_slot(slot_number)
# At startup, make sure all DNS entries exist. Otherwise, slurmctld
# will refuse to start.
- if @@dns_server_conf_dir and @@dns_server_conf_template
- (0..@@max_compute_nodes-1).each do |slot_number|
+ if Rails.configuration.dns_server_conf_dir and Rails.configuration.dns_server_conf_template
+ (0..Rails.configuration.max_compute_nodes-1).each do |slot_number|
hostname = hostname_for_slot(slot_number)
- hostfile = File.join @@dns_server_conf_dir, "#{hostname}.conf"
+ hostfile = File.join Rails.configuration.dns_server_conf_dir, "#{hostname}.conf"
if !File.exists? hostfile
n = Node.where(:slot_number => slot_number).first
if n.nil? or n.ip_address.nil?