+ 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