+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
require 'test_helper'
+require 'tmpdir'
+require 'tempfile'
class NodeTest < ActiveSupport::TestCase
def ping_node(node_name, ping_data)
conffile = Rails.root.join 'tmp', 'compute65535.conf'
File.unlink conffile rescue nil
assert Node.dns_server_update 'compute65535', '127.0.0.1'
- assert_match /\"1\.0\.0\.127\.in-addr\.arpa\. IN PTR compute65535\.zzzzz\.arvadosapi\.com\"/, IO.read(conffile)
+ assert_match(/\"1\.0\.0\.127\.in-addr\.arpa\. IN PTR compute65535\.zzzzz\.arvadosapi\.com\"/, IO.read(conffile))
File.unlink conffile
end
Rails.configuration.dns_server_reload_command = 'ignored!'
assert Node.dns_server_update 'compute65535', '127.0.0.127'
end
+
+ test "don't leave temp files behind if there's an error writing them" do
+ Rails.configuration.dns_server_conf_template = Rails.root.join 'config', 'unbound.template'
+ Tempfile.any_instance.stubs(:puts).raises(IOError)
+ Dir.mktmpdir do |tmpdir|
+ Rails.configuration.dns_server_conf_dir = tmpdir
+ refute Node.dns_server_update 'compute65535', '127.0.0.127'
+ assert_empty Dir.entries(tmpdir).select{|f| File.file? f}
+ end
+ end
+
+ test "ping new node with no hostname and default config" do
+ node = ping_node(:new_with_no_hostname, {})
+ slot_number = node.slot_number
+ refute_nil slot_number
+ assert_equal("compute#{slot_number}", node.hostname)
+ end
+
+ test "ping new node with no hostname and no config" do
+ Rails.configuration.assign_node_hostname = false
+ node = ping_node(:new_with_no_hostname, {})
+ refute_nil node.slot_number
+ assert_nil node.hostname
+ end
+
+ test "ping new node with zero padding config" do
+ Rails.configuration.assign_node_hostname = 'compute%<slot_number>04d'
+ node = ping_node(:new_with_no_hostname, {})
+ slot_number = node.slot_number
+ refute_nil slot_number
+ assert_equal("compute000#{slot_number}", node.hostname)
+ end
+
+ test "ping node with hostname and config and expect hostname unchanged" do
+ node = ping_node(:new_with_custom_hostname, {})
+ assert_equal(23, node.slot_number)
+ assert_equal("custom1", node.hostname)
+ end
+
+ test "ping node with hostname and no config and expect hostname unchanged" do
+ Rails.configuration.assign_node_hostname = false
+ node = ping_node(:new_with_custom_hostname, {})
+ assert_equal(23, node.slot_number)
+ assert_equal("custom1", node.hostname)
+ end
+
+ # Ping two nodes: one without a hostname and the other with a hostname.
+ # Verify that the first one gets a hostname and second one is unchanged.
+ test "ping two nodes one with no hostname and one with hostname and check hostnames" do
+ # ping node with no hostname and expect it set with config format
+ node = ping_node(:new_with_no_hostname, {})
+ refute_nil node.slot_number
+ assert_equal "compute#{node.slot_number}", node.hostname
+
+ # ping node with a hostname and expect it to be unchanged
+ node2 = ping_node(:new_with_custom_hostname, {})
+ refute_nil node2.slot_number
+ assert_equal "custom1", node2.hostname
+ end
+
+ test "update dns when nodemanager clears hostname and ip_address" do
+ act_as_system_user do
+ node = ping_node(:new_with_custom_hostname, {})
+ Node.expects(:dns_server_update).with(node.hostname, Node::UNUSED_NODE_IP)
+ node.update_attributes(hostname: nil, ip_address: nil)
+ end
+ end
+
+ test "update dns when hostname changes" do
+ act_as_system_user do
+ node = ping_node(:new_with_custom_hostname, {})
+
+ Node.expects(:dns_server_update).with(node.hostname, Node::UNUSED_NODE_IP)
+ Node.expects(:dns_server_update).with('foo0', node.ip_address)
+ node.update_attributes!(hostname: 'foo0')
+
+ Node.expects(:dns_server_update).with('foo0', Node::UNUSED_NODE_IP)
+ node.update_attributes!(hostname: nil, ip_address: nil)
+
+ Node.expects(:dns_server_update).with('foo0', '10.11.12.13')
+ node.update_attributes!(hostname: 'foo0', ip_address: '10.11.12.13')
+
+ Node.expects(:dns_server_update).with('foo0', '10.11.12.14')
+ node.update_attributes!(hostname: 'foo0', ip_address: '10.11.12.14')
+ end
+ end
+
+ test 'newest ping wins IP address conflict' do
+ act_as_system_user do
+ n1, n2 = Node.create!, Node.create!
+
+ n1.ping(ip: '10.5.5.5', ping_secret: n1.info['ping_secret'])
+ n1.reload
+
+ Node.expects(:dns_server_update).with(n1.hostname, Node::UNUSED_NODE_IP)
+ Node.expects(:dns_server_update).with(Not(equals(n1.hostname)), '10.5.5.5')
+ n2.ping(ip: '10.5.5.5', ping_secret: n2.info['ping_secret'])
+
+ n1.reload
+ n2.reload
+ assert_nil n1.ip_address
+ assert_equal '10.5.5.5', n2.ip_address
+
+ Node.expects(:dns_server_update).with(n2.hostname, Node::UNUSED_NODE_IP)
+ Node.expects(:dns_server_update).with(n1.hostname, '10.5.5.5')
+ n1.ping(ip: '10.5.5.5', ping_secret: n1.info['ping_secret'])
+
+ n1.reload
+ n2.reload
+ assert_nil n2.ip_address
+ assert_equal '10.5.5.5', n1.ip_address
+ end
+ end
+
+ test 'run out of slots' do
+ Rails.configuration.max_compute_nodes = 3
+ act_as_system_user do
+ Node.destroy_all
+ (1..4).each do |i|
+ n = Node.create!
+ args = { ip: "10.0.0.#{i}", ping_secret: n.info['ping_secret'] }
+ if i <= Rails.configuration.max_compute_nodes
+ n.ping(args)
+ else
+ assert_raises do
+ n.ping(args)
+ end
+ end
+ end
+ end
+ end
end
projects / arvados.git / blobdiff