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open-nomad
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open-nomad/nomad/structs/network_test.go

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package structs
import (
"fmt"
"net"
"reflect"
"testing"
"github.com/stretchr/testify/require"
)
func TestNetworkIndex_Overcommitted(t *testing.T) {
t.Skip()
idx := NewNetworkIndex()
// Consume some network
reserved := &NetworkResource{
Device: "eth0",
IP: "192.168.0.100",
MBits: 505,
ReservedPorts: []Port{{"one", 8000, 0, ""}, {"two", 9000, 0, ""}},
}
collide := idx.AddReserved(reserved)
if collide {
t.Fatalf("bad")
}
if !idx.Overcommitted() {
t.Fatalf("have no resources")
}
// Add resources
n := &Node{
NodeResources: &NodeResources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
MBits: 1000,
},
},
},
}
idx.SetNode(n)
if idx.Overcommitted() {
t.Fatalf("have resources")
}
// Double up our usage
idx.AddReserved(reserved)
if !idx.Overcommitted() {
t.Fatalf("should be overcommitted")
}
}
func TestNetworkIndex_SetNode(t *testing.T) {
idx := NewNetworkIndex()
n := &Node{
NodeResources: &NodeResources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
IP: "192.168.0.100",
MBits: 1000,
},
},
},
ReservedResources: &NodeReservedResources{
Networks: NodeReservedNetworkResources{
ReservedHostPorts: "22",
},
},
}
collide := idx.SetNode(n)
if collide {
t.Fatalf("bad")
}
if len(idx.AvailNetworks) != 1 {
t.Fatalf("Bad")
}
if idx.AvailBandwidth["eth0"] != 1000 {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(22) {
t.Fatalf("Bad")
}
}
func TestNetworkIndex_AddAllocs(t *testing.T) {
idx := NewNetworkIndex()
allocs := []*Allocation{
{
AllocatedResources: &AllocatedResources{
Tasks: map[string]*AllocatedTaskResources{
"web": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 20,
ReservedPorts: []Port{{"one", 8000, 0, ""}, {"two", 9000, 0, ""}},
},
},
},
},
},
},
{
AllocatedResources: &AllocatedResources{
Tasks: map[string]*AllocatedTaskResources{
"api": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 50,
ReservedPorts: []Port{{"one", 10000, 0, ""}},
},
},
},
},
},
},
}
collide := idx.AddAllocs(allocs)
if collide {
t.Fatalf("bad")
}
if idx.UsedBandwidth["eth0"] != 70 {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(8000) {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(9000) {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(10000) {
t.Fatalf("Bad")
}
}
func TestNetworkIndex_AddReserved(t *testing.T) {
idx := NewNetworkIndex()
reserved := &NetworkResource{
Device: "eth0",
IP: "192.168.0.100",
MBits: 20,
ReservedPorts: []Port{{"one", 8000, 0, ""}, {"two", 9000, 0, ""}},
}
collide := idx.AddReserved(reserved)
if collide {
t.Fatalf("bad")
}
if idx.UsedBandwidth["eth0"] != 20 {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(8000) {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(9000) {
t.Fatalf("Bad")
}
// Try to reserve the same network
collide = idx.AddReserved(reserved)
if !collide {
t.Fatalf("bad")
}
}
// XXX Reserving ports doesn't work when yielding from a CIDR block. This is
// okay for now since we do not actually fingerprint CIDR blocks.
func TestNetworkIndex_yieldIP(t *testing.T) {
idx := NewNetworkIndex()
n := &Node{
NodeResources: &NodeResources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/30",
MBits: 1000,
},
},
},
}
idx.SetNode(n)
var out []string
idx.yieldIP(func(n *NetworkResource, ip net.IP) (stop bool) {
out = append(out, ip.String())
return
})
expect := []string{"192.168.0.100", "192.168.0.101",
"192.168.0.102", "192.168.0.103"}
if !reflect.DeepEqual(out, expect) {
t.Fatalf("bad: %v", out)
}
}
func TestNetworkIndex_AssignNetwork(t *testing.T) {
idx := NewNetworkIndex()
n := &Node{
NodeResources: &NodeResources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/30",
MBits: 1000,
},
},
},
}
idx.SetNode(n)
allocs := []*Allocation{
{
TaskResources: map[string]*Resources{
"web": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 20,
ReservedPorts: []Port{{"one", 8000, 0, ""}, {"two", 9000, 0, ""}},
},
},
},
},
},
{
TaskResources: map[string]*Resources{
"api": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 50,
ReservedPorts: []Port{{"main", 10000, 0, ""}},
},
},
},
},
},
}
idx.AddAllocs(allocs)
// Ask for a reserved port
ask := &NetworkResource{
ReservedPorts: []Port{{"main", 8000, 0, ""}},
}
offer, err := idx.AssignNetwork(ask)
require.NoError(t, err)
require.NotNil(t, offer)
require.Equal(t, "192.168.0.101", offer.IP)
rp := Port{"main", 8000, 0, ""}
require.Len(t, offer.ReservedPorts, 1)
require.Exactly(t, rp, offer.ReservedPorts[0])
// Ask for dynamic ports
ask = &NetworkResource{
DynamicPorts: []Port{{"http", 0, 80, ""}, {"https", 0, 443, ""}, {"admin", 0, -1, ""}},
}
offer, err = idx.AssignNetwork(ask)
require.NoError(t, err)
require.NotNil(t, offer)
require.Equal(t, "192.168.0.100", offer.IP)
require.Len(t, offer.DynamicPorts, 3)
var adminPort Port
for _, port := range offer.DynamicPorts {
require.NotZero(t, port.Value)
if port.Label == "admin" {
adminPort = port
}
}
require.Equal(t, adminPort.Value, adminPort.To)
// Ask for reserved + dynamic ports
ask = &NetworkResource{
ReservedPorts: []Port{{"main", 2345, 0, ""}},
DynamicPorts: []Port{{"http", 0, 80, ""}, {"https", 0, 443, ""}, {"admin", 0, 8080, ""}},
}
offer, err = idx.AssignNetwork(ask)
require.NoError(t, err)
require.NotNil(t, offer)
require.Equal(t, "192.168.0.100", offer.IP)
rp = Port{"main", 2345, 0, ""}
require.Len(t, offer.ReservedPorts, 1)
require.Exactly(t, rp, offer.ReservedPorts[0])
// Ask for too much bandwidth
ask = &NetworkResource{
MBits: 1000,
}
offer, err = idx.AssignNetwork(ask)
require.Error(t, err)
require.Equal(t, "bandwidth exceeded", err.Error())
require.Nil(t, offer)
}
// This test ensures that even with a small domain of available ports we are
// able to make a dynamic port allocation.
func TestNetworkIndex_AssignNetwork_Dynamic_Contention(t *testing.T) {
// Create a node that only has one free port
idx := NewNetworkIndex()
n := &Node{
NodeResources: &NodeResources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
IP: "192.168.0.100",
MBits: 1000,
},
},
},
ReservedResources: &NodeReservedResources{
Networks: NodeReservedNetworkResources{
ReservedHostPorts: fmt.Sprintf("%d-%d", idx.MinDynamicPort, idx.MaxDynamicPort-1),
},
},
}
idx.SetNode(n)
// Ask for dynamic ports
ask := &NetworkResource{
DynamicPorts: []Port{{"http", 0, 80, ""}},
}
offer, err := idx.AssignNetwork(ask)
if err != nil {
t.Fatalf("err: %v", err)
}
if offer == nil {
t.Fatalf("bad")
}
if offer.IP != "192.168.0.100" {
t.Fatalf("bad: %#v", offer)
}
if len(offer.DynamicPorts) != 1 {
t.Fatalf("There should be one dynamic ports")
}
if p := offer.DynamicPorts[0].Value; p != idx.MaxDynamicPort {
t.Fatalf("Dynamic Port: should have been assigned %d; got %d", p, idx.MaxDynamicPort)
}
}
// COMPAT(0.11): Remove in 0.11
func TestNetworkIndex_SetNode_Old(t *testing.T) {
idx := NewNetworkIndex()
n := &Node{
Resources: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
MBits: 1000,
},
},
},
Reserved: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
ReservedPorts: []Port{{"ssh", 22, 0, ""}},
MBits: 1,
},
},
},
}
collide := idx.SetNode(n)
if collide {
t.Fatalf("bad")
}
if len(idx.AvailNetworks) != 1 {
t.Fatalf("Bad")
}
if idx.AvailBandwidth["eth0"] != 1000 {
t.Fatalf("Bad")
}
if idx.UsedBandwidth["eth0"] != 1 {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(22) {
t.Fatalf("Bad")
}
}
// COMPAT(0.11): Remove in 0.11
func TestNetworkIndex_AddAllocs_Old(t *testing.T) {
idx := NewNetworkIndex()
allocs := []*Allocation{
{
TaskResources: map[string]*Resources{
"web": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 20,
ReservedPorts: []Port{{"one", 8000, 0, ""}, {"two", 9000, 0, ""}},
},
},
},
},
},
{
TaskResources: map[string]*Resources{
"api": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 50,
ReservedPorts: []Port{{"one", 10000, 0, ""}},
},
},
},
},
},
}
collide := idx.AddAllocs(allocs)
if collide {
t.Fatalf("bad")
}
if idx.UsedBandwidth["eth0"] != 70 {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(8000) {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(9000) {
t.Fatalf("Bad")
}
if !idx.UsedPorts["192.168.0.100"].Check(10000) {
t.Fatalf("Bad")
}
}
// COMPAT(0.11): Remove in 0.11
func TestNetworkIndex_yieldIP_Old(t *testing.T) {
idx := NewNetworkIndex()
n := &Node{
Resources: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/30",
MBits: 1000,
},
},
},
Reserved: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
ReservedPorts: []Port{{"ssh", 22, 0, ""}},
MBits: 1,
},
},
},
}
idx.SetNode(n)
var out []string
idx.yieldIP(func(n *NetworkResource, ip net.IP) (stop bool) {
out = append(out, ip.String())
return
})
expect := []string{"192.168.0.100", "192.168.0.101",
"192.168.0.102", "192.168.0.103"}
if !reflect.DeepEqual(out, expect) {
t.Fatalf("bad: %v", out)
}
}
// COMPAT(0.11): Remove in 0.11
func TestNetworkIndex_AssignNetwork_Old(t *testing.T) {
idx := NewNetworkIndex()
n := &Node{
Resources: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/30",
MBits: 1000,
},
},
},
Reserved: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
ReservedPorts: []Port{{"ssh", 22, 0, ""}},
MBits: 1,
},
},
},
}
idx.SetNode(n)
allocs := []*Allocation{
{
TaskResources: map[string]*Resources{
"web": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 20,
ReservedPorts: []Port{{"one", 8000, 0, ""}, {"two", 9000, 0, ""}},
},
},
},
},
},
{
TaskResources: map[string]*Resources{
"api": {
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 50,
ReservedPorts: []Port{{"main", 10000, 0, ""}},
},
},
},
},
},
}
idx.AddAllocs(allocs)
// Ask for a reserved port
ask := &NetworkResource{
ReservedPorts: []Port{{"main", 8000, 0, ""}},
}
offer, err := idx.AssignNetwork(ask)
if err != nil {
t.Fatalf("err: %v", err)
}
if offer == nil {
t.Fatalf("bad")
}
if offer.IP != "192.168.0.101" {
t.Fatalf("bad: %#v", offer)
}
rp := Port{"main", 8000, 0, ""}
if len(offer.ReservedPorts) != 1 || offer.ReservedPorts[0] != rp {
t.Fatalf("bad: %#v", offer)
}
// Ask for dynamic ports
ask = &NetworkResource{
DynamicPorts: []Port{{"http", 0, 80, ""}, {"https", 0, 443, ""}, {"admin", 0, 8080, ""}},
}
offer, err = idx.AssignNetwork(ask)
if err != nil {
t.Fatalf("err: %v", err)
}
if offer == nil {
t.Fatalf("bad")
}
if offer.IP != "192.168.0.100" {
t.Fatalf("bad: %#v", offer)
}
if len(offer.DynamicPorts) != 3 {
t.Fatalf("There should be three dynamic ports")
}
for _, port := range offer.DynamicPorts {
if port.Value == 0 {
t.Fatalf("Dynamic Port: %v should have been assigned a host port", port.Label)
}
}
// Ask for reserved + dynamic ports
ask = &NetworkResource{
ReservedPorts: []Port{{"main", 2345, 0, ""}},
DynamicPorts: []Port{{"http", 0, 80, ""}, {"https", 0, 443, ""}, {"admin", 0, 8080, ""}},
}
offer, err = idx.AssignNetwork(ask)
if err != nil {
t.Fatalf("err: %v", err)
}
if offer == nil {
t.Fatalf("bad")
}
if offer.IP != "192.168.0.100" {
t.Fatalf("bad: %#v", offer)
}
rp = Port{"main", 2345, 0, ""}
if len(offer.ReservedPorts) != 1 || offer.ReservedPorts[0] != rp {
t.Fatalf("bad: %#v", offer)
}
// Ask for too much bandwidth
ask = &NetworkResource{
MBits: 1000,
}
offer, err = idx.AssignNetwork(ask)
if err.Error() != "bandwidth exceeded" {
t.Fatalf("err: %v", err)
}
if offer != nil {
t.Fatalf("bad")
}
}
// COMPAT(0.11): Remove in 0.11
// This test ensures that even with a small domain of available ports we are
// able to make a dynamic port allocation.
func TestNetworkIndex_AssignNetwork_Dynamic_Contention_Old(t *testing.T) {
// Create a node that only has one free port
idx := NewNetworkIndex()
n := &Node{
Resources: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
MBits: 1000,
},
},
},
Reserved: &Resources{
Networks: []*NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
MBits: 1,
},
},
},
}
for i := idx.MinDynamicPort; i < idx.MaxDynamicPort; i++ {
n.Reserved.Networks[0].ReservedPorts = append(n.Reserved.Networks[0].ReservedPorts, Port{Value: i})
}
idx.SetNode(n)
// Ask for dynamic ports
ask := &NetworkResource{
DynamicPorts: []Port{{"http", 0, 80, ""}},
}
offer, err := idx.AssignNetwork(ask)
if err != nil {
t.Fatalf("err: %v", err)
}
if offer == nil {
t.Fatalf("bad")
}
if offer.IP != "192.168.0.100" {
t.Fatalf("bad: %#v", offer)
}
if len(offer.DynamicPorts) != 1 {
t.Fatalf("There should be three dynamic ports")
}
if p := offer.DynamicPorts[0].Value; p != idx.MaxDynamicPort {
t.Fatalf("Dynamic Port: should have been assigned %d; got %d", p, idx.MaxDynamicPort)
}
}
func TestIntContains(t *testing.T) {
l := []int{1, 2, 10, 20}
if isPortReserved(l, 50) {
t.Fatalf("bad")
}
if !isPortReserved(l, 20) {
t.Fatalf("bad")
}
if !isPortReserved(l, 1) {
t.Fatalf("bad")
}
}
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