open-nomad/scheduler/feasible_test.go

2691 lines
61 KiB
Go

package scheduler
import (
"fmt"
"reflect"
"testing"
"time"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
psstructs "github.com/hashicorp/nomad/plugins/shared/structs"
"github.com/stretchr/testify/require"
)
func TestStaticIterator_Reset(t *testing.T) {
_, ctx := testContext(t)
var nodes []*structs.Node
for i := 0; i < 3; i++ {
nodes = append(nodes, mock.Node())
}
static := NewStaticIterator(ctx, nodes)
for i := 0; i < 6; i++ {
static.Reset()
for j := 0; j < i; j++ {
static.Next()
}
static.Reset()
out := collectFeasible(static)
if len(out) != len(nodes) {
t.Fatalf("out: %#v", out)
t.Fatalf("missing nodes %d %#v", i, static)
}
ids := make(map[string]struct{})
for _, o := range out {
if _, ok := ids[o.ID]; ok {
t.Fatalf("duplicate")
}
ids[o.ID] = struct{}{}
}
}
}
func TestStaticIterator_SetNodes(t *testing.T) {
_, ctx := testContext(t)
var nodes []*structs.Node
for i := 0; i < 3; i++ {
nodes = append(nodes, mock.Node())
}
static := NewStaticIterator(ctx, nodes)
newNodes := []*structs.Node{mock.Node()}
static.SetNodes(newNodes)
out := collectFeasible(static)
if !reflect.DeepEqual(out, newNodes) {
t.Fatalf("bad: %#v", out)
}
}
func TestRandomIterator(t *testing.T) {
_, ctx := testContext(t)
var nodes []*structs.Node
for i := 0; i < 10; i++ {
nodes = append(nodes, mock.Node())
}
nc := make([]*structs.Node, len(nodes))
copy(nc, nodes)
rand := NewRandomIterator(ctx, nc)
out := collectFeasible(rand)
if len(out) != len(nodes) {
t.Fatalf("missing nodes")
}
if reflect.DeepEqual(out, nodes) {
t.Fatalf("same order")
}
}
func TestHostVolumeChecker(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
nodes[1].HostVolumes = map[string]*structs.ClientHostVolumeConfig{"foo": {Name: "foo"}}
nodes[2].HostVolumes = map[string]*structs.ClientHostVolumeConfig{
"foo": {},
"bar": {},
}
nodes[3].HostVolumes = map[string]*structs.ClientHostVolumeConfig{
"foo": {},
"bar": {},
}
nodes[4].HostVolumes = map[string]*structs.ClientHostVolumeConfig{
"foo": {},
"baz": {},
}
noVolumes := map[string]*structs.VolumeRequest{}
volumes := map[string]*structs.VolumeRequest{
"foo": {
Type: "host",
Source: "foo",
},
"bar": {
Type: "host",
Source: "bar",
},
"baz": {
Type: "nothost",
Source: "baz",
},
}
checker := NewHostVolumeChecker(ctx)
cases := []struct {
Node *structs.Node
RequestedVolumes map[string]*structs.VolumeRequest
Result bool
}{
{ // Nil Volumes, some requested
Node: nodes[0],
RequestedVolumes: volumes,
Result: false,
},
{ // Mismatched set of volumes
Node: nodes[1],
RequestedVolumes: volumes,
Result: false,
},
{ // Happy Path
Node: nodes[2],
RequestedVolumes: volumes,
Result: true,
},
{ // No Volumes requested or available
Node: nodes[3],
RequestedVolumes: noVolumes,
Result: true,
},
{ // No Volumes requested, some available
Node: nodes[4],
RequestedVolumes: noVolumes,
Result: true,
},
}
for i, c := range cases {
checker.SetVolumes(c.RequestedVolumes)
if act := checker.Feasible(c.Node); act != c.Result {
t.Fatalf("case(%d) failed: got %v; want %v", i, act, c.Result)
}
}
}
func TestHostVolumeChecker_ReadOnly(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
nodes[0].HostVolumes = map[string]*structs.ClientHostVolumeConfig{
"foo": {
ReadOnly: true,
},
}
nodes[1].HostVolumes = map[string]*structs.ClientHostVolumeConfig{
"foo": {
ReadOnly: false,
},
}
readwriteRequest := map[string]*structs.VolumeRequest{
"foo": {
Type: "host",
Source: "foo",
},
}
readonlyRequest := map[string]*structs.VolumeRequest{
"foo": {
Type: "host",
Source: "foo",
ReadOnly: true,
},
}
checker := NewHostVolumeChecker(ctx)
cases := []struct {
Node *structs.Node
RequestedVolumes map[string]*structs.VolumeRequest
Result bool
}{
{ // ReadWrite Request, ReadOnly Host
Node: nodes[0],
RequestedVolumes: readwriteRequest,
Result: false,
},
{ // ReadOnly Request, ReadOnly Host
Node: nodes[0],
RequestedVolumes: readonlyRequest,
Result: true,
},
{ // ReadOnly Request, ReadWrite Host
Node: nodes[1],
RequestedVolumes: readonlyRequest,
Result: true,
},
{ // ReadWrite Request, ReadWrite Host
Node: nodes[1],
RequestedVolumes: readwriteRequest,
Result: true,
},
}
for i, c := range cases {
checker.SetVolumes(c.RequestedVolumes)
if act := checker.Feasible(c.Node); act != c.Result {
t.Fatalf("case(%d) failed: got %v; want %v", i, act, c.Result)
}
}
}
func TestCSIVolumeChecker(t *testing.T) {
t.Parallel()
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
// Register running plugins on some nodes
nodes[0].CSIControllerPlugins = map[string]*structs.CSIInfo{
"foo": {
PluginID: "foo",
Healthy: true,
ControllerInfo: &structs.CSIControllerInfo{},
},
}
nodes[0].CSINodePlugins = map[string]*structs.CSIInfo{
"foo": {
PluginID: "foo",
Healthy: true,
NodeInfo: &structs.CSINodeInfo{MaxVolumes: 1},
},
}
nodes[1].CSINodePlugins = map[string]*structs.CSIInfo{
"foo": {
PluginID: "foo",
Healthy: false,
NodeInfo: &structs.CSINodeInfo{MaxVolumes: 1},
},
}
nodes[2].CSINodePlugins = map[string]*structs.CSIInfo{
"bar": {
PluginID: "bar",
Healthy: true,
NodeInfo: &structs.CSINodeInfo{MaxVolumes: 1},
},
}
nodes[4].CSINodePlugins = map[string]*structs.CSIInfo{
"foo": {
PluginID: "foo",
Healthy: true,
NodeInfo: &structs.CSINodeInfo{MaxVolumes: 1},
},
}
// Create the plugins in the state store
index := uint64(999)
for _, node := range nodes {
err := state.UpsertNode(structs.MsgTypeTestSetup, index, node)
require.NoError(t, err)
index++
}
// Create the volume in the state store
vid := "volume-id"
vol := structs.NewCSIVolume(vid, index)
vol.PluginID = "foo"
vol.Namespace = structs.DefaultNamespace
vol.AccessMode = structs.CSIVolumeAccessModeMultiNodeMultiWriter
vol.AttachmentMode = structs.CSIVolumeAttachmentModeFilesystem
err := state.CSIVolumeRegister(index, []*structs.CSIVolume{vol})
require.NoError(t, err)
index++
// Create some other volumes in use on nodes[3] to trip MaxVolumes
vid2 := uuid.Generate()
vol2 := structs.NewCSIVolume(vid2, index)
vol2.PluginID = "foo"
vol2.Namespace = structs.DefaultNamespace
vol2.AccessMode = structs.CSIVolumeAccessModeMultiNodeSingleWriter
vol2.AttachmentMode = structs.CSIVolumeAttachmentModeFilesystem
err = state.CSIVolumeRegister(index, []*structs.CSIVolume{vol2})
require.NoError(t, err)
index++
alloc := mock.Alloc()
alloc.NodeID = nodes[4].ID
alloc.Job.TaskGroups[0].Volumes = map[string]*structs.VolumeRequest{
vid2: {
Name: vid2,
Type: "csi",
Source: vid2,
},
}
err = state.UpsertJob(structs.MsgTypeTestSetup, index, alloc.Job)
require.NoError(t, err)
index++
summary := mock.JobSummary(alloc.JobID)
require.NoError(t, state.UpsertJobSummary(index, summary))
index++
err = state.UpsertAllocs(structs.MsgTypeTestSetup, index, []*structs.Allocation{alloc})
require.NoError(t, err)
index++
// Create volume requests
noVolumes := map[string]*structs.VolumeRequest{}
volumes := map[string]*structs.VolumeRequest{
"baz": {
Type: "csi",
Name: "baz",
Source: "volume-id",
},
"nonsense": {
Type: "host",
Name: "nonsense",
Source: "my-host-volume",
},
}
checker := NewCSIVolumeChecker(ctx)
checker.SetNamespace(structs.DefaultNamespace)
cases := []struct {
Node *structs.Node
RequestedVolumes map[string]*structs.VolumeRequest
Result bool
}{
{ // Get it
Node: nodes[0],
RequestedVolumes: volumes,
Result: true,
},
{ // Unhealthy
Node: nodes[1],
RequestedVolumes: volumes,
Result: false,
},
{ // Wrong id
Node: nodes[2],
RequestedVolumes: volumes,
Result: false,
},
{ // No Volumes requested or available
Node: nodes[3],
RequestedVolumes: noVolumes,
Result: true,
},
{ // No Volumes requested, some available
Node: nodes[0],
RequestedVolumes: noVolumes,
Result: true,
},
{ // Volumes requested, none available
Node: nodes[3],
RequestedVolumes: volumes,
Result: false,
},
{ // Volumes requested, MaxVolumes exceeded
Node: nodes[4],
RequestedVolumes: volumes,
Result: false,
},
}
for i, c := range cases {
checker.SetVolumes(c.RequestedVolumes)
if act := checker.Feasible(c.Node); act != c.Result {
t.Fatalf("case(%d) failed: got %v; want %v", i, act, c.Result)
}
}
}
func TestNetworkChecker(t *testing.T) {
_, ctx := testContext(t)
node := func(mode string) *structs.Node {
n := mock.Node()
n.NodeResources.Networks = append(n.NodeResources.Networks, &structs.NetworkResource{Mode: mode})
n.Attributes["nomad.version"] = "0.12.0" // mock version is 0.5.0
return n
}
nodes := []*structs.Node{
node("bridge"),
node("bridge"),
node("cni/mynet"),
}
checker := NewNetworkChecker(ctx)
cases := []struct {
network *structs.NetworkResource
results []bool
}{
{
network: &structs.NetworkResource{Mode: "host"},
results: []bool{true, true, true},
},
{
network: &structs.NetworkResource{Mode: "bridge"},
results: []bool{true, true, false},
},
{
network: &structs.NetworkResource{Mode: "cni/mynet"},
results: []bool{false, false, true},
},
{
network: &structs.NetworkResource{Mode: "cni/nonexistent"},
results: []bool{false, false, false},
},
}
for _, c := range cases {
checker.SetNetwork(c.network)
for i, node := range nodes {
require.Equal(t, c.results[i], checker.Feasible(node), "mode=%q, idx=%d", c.network.Mode, i)
}
}
}
func TestNetworkChecker_bridge_upgrade_path(t *testing.T) {
_, ctx := testContext(t)
t.Run("older client", func(t *testing.T) {
// Create a client that is still on v0.11, which does not have the bridge
// network finger-printer (and thus no bridge network resource)
oldClient := mock.Node()
oldClient.Attributes["nomad.version"] = "0.11.0"
checker := NewNetworkChecker(ctx)
checker.SetNetwork(&structs.NetworkResource{Mode: "bridge"})
ok := checker.Feasible(oldClient)
require.True(t, ok)
})
t.Run("updated client", func(t *testing.T) {
// Create a client that is updated to 0.12, but did not detect a bridge
// network resource.
oldClient := mock.Node()
oldClient.Attributes["nomad.version"] = "0.12.0"
checker := NewNetworkChecker(ctx)
checker.SetNetwork(&structs.NetworkResource{Mode: "bridge"})
ok := checker.Feasible(oldClient)
require.False(t, ok)
})
}
func TestDriverChecker_DriverInfo(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
}
nodes[0].Drivers["foo"] = &structs.DriverInfo{
Detected: true,
Healthy: true,
}
nodes[1].Drivers["foo"] = &structs.DriverInfo{
Detected: true,
Healthy: false,
}
nodes[2].Drivers["foo"] = &structs.DriverInfo{
Detected: false,
Healthy: false,
}
drivers := map[string]struct{}{
"exec": {},
"foo": {},
}
checker := NewDriverChecker(ctx, drivers)
cases := []struct {
Node *structs.Node
Result bool
}{
{
Node: nodes[0],
Result: true,
},
{
Node: nodes[1],
Result: false,
},
{
Node: nodes[2],
Result: false,
},
}
for i, c := range cases {
if act := checker.Feasible(c.Node); act != c.Result {
t.Fatalf("case(%d) failed: got %v; want %v", i, act, c.Result)
}
}
}
func TestDriverChecker_Compatibility(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
for _, n := range nodes {
// force compatibility mode
n.Drivers = nil
}
nodes[0].Attributes["driver.foo"] = "1"
nodes[1].Attributes["driver.foo"] = "0"
nodes[2].Attributes["driver.foo"] = "true"
nodes[3].Attributes["driver.foo"] = "False"
drivers := map[string]struct{}{
"exec": {},
"foo": {},
}
checker := NewDriverChecker(ctx, drivers)
cases := []struct {
Node *structs.Node
Result bool
}{
{
Node: nodes[0],
Result: true,
},
{
Node: nodes[1],
Result: false,
},
{
Node: nodes[2],
Result: true,
},
{
Node: nodes[3],
Result: false,
},
}
for i, c := range cases {
if act := checker.Feasible(c.Node); act != c.Result {
t.Fatalf("case(%d) failed: got %v; want %v", i, act, c.Result)
}
}
}
func Test_HealthChecks(t *testing.T) {
require := require.New(t)
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
}
for _, e := range nodes {
e.Drivers = make(map[string]*structs.DriverInfo)
}
nodes[0].Attributes["driver.foo"] = "1"
nodes[0].Drivers["foo"] = &structs.DriverInfo{
Detected: true,
Healthy: true,
HealthDescription: "running",
UpdateTime: time.Now(),
}
nodes[1].Attributes["driver.bar"] = "1"
nodes[1].Drivers["bar"] = &structs.DriverInfo{
Detected: true,
Healthy: false,
HealthDescription: "not running",
UpdateTime: time.Now(),
}
nodes[2].Attributes["driver.baz"] = "0"
nodes[2].Drivers["baz"] = &structs.DriverInfo{
Detected: false,
Healthy: false,
HealthDescription: "not running",
UpdateTime: time.Now(),
}
testDrivers := []string{"foo", "bar", "baz"}
cases := []struct {
Node *structs.Node
Result bool
}{
{
Node: nodes[0],
Result: true,
},
{
Node: nodes[1],
Result: false,
},
{
Node: nodes[2],
Result: false,
},
}
for i, c := range cases {
drivers := map[string]struct{}{
testDrivers[i]: {},
}
checker := NewDriverChecker(ctx, drivers)
act := checker.Feasible(c.Node)
require.Equal(act, c.Result)
}
}
func TestConstraintChecker(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
}
nodes[0].Attributes["kernel.name"] = "freebsd"
nodes[1].Datacenter = "dc2"
nodes[2].NodeClass = "large"
nodes[2].Attributes["foo"] = "bar"
constraints := []*structs.Constraint{
{
Operand: "=",
LTarget: "${node.datacenter}",
RTarget: "dc1",
},
{
Operand: "is",
LTarget: "${attr.kernel.name}",
RTarget: "linux",
},
{
Operand: "!=",
LTarget: "${node.class}",
RTarget: "linux-medium-pci",
},
{
Operand: "is_set",
LTarget: "${attr.foo}",
},
}
checker := NewConstraintChecker(ctx, constraints)
cases := []struct {
Node *structs.Node
Result bool
}{
{
Node: nodes[0],
Result: false,
},
{
Node: nodes[1],
Result: false,
},
{
Node: nodes[2],
Result: true,
},
}
for i, c := range cases {
if act := checker.Feasible(c.Node); act != c.Result {
t.Fatalf("case(%d) failed: got %v; want %v", i, act, c.Result)
}
}
}
func TestResolveConstraintTarget(t *testing.T) {
type tcase struct {
target string
node *structs.Node
val interface{}
result bool
}
node := mock.Node()
cases := []tcase{
{
target: "${node.unique.id}",
node: node,
val: node.ID,
result: true,
},
{
target: "${node.datacenter}",
node: node,
val: node.Datacenter,
result: true,
},
{
target: "${node.unique.name}",
node: node,
val: node.Name,
result: true,
},
{
target: "${node.class}",
node: node,
val: node.NodeClass,
result: true,
},
{
target: "${node.foo}",
node: node,
result: false,
},
{
target: "${attr.kernel.name}",
node: node,
val: node.Attributes["kernel.name"],
result: true,
},
{
target: "${attr.rand}",
node: node,
val: "",
result: false,
},
{
target: "${meta.pci-dss}",
node: node,
val: node.Meta["pci-dss"],
result: true,
},
{
target: "${meta.rand}",
node: node,
val: "",
result: false,
},
}
for _, tc := range cases {
res, ok := resolveTarget(tc.target, tc.node)
if ok != tc.result {
t.Fatalf("TC: %#v, Result: %v %v", tc, res, ok)
}
if ok && !reflect.DeepEqual(res, tc.val) {
t.Fatalf("TC: %#v, Result: %v %v", tc, res, ok)
}
}
}
func TestCheckConstraint(t *testing.T) {
type tcase struct {
op string
lVal, rVal interface{}
result bool
}
cases := []tcase{
{
op: "=",
lVal: "foo", rVal: "foo",
result: true,
},
{
op: "is",
lVal: "foo", rVal: "foo",
result: true,
},
{
op: "==",
lVal: "foo", rVal: "foo",
result: true,
},
{
op: "==",
lVal: "foo", rVal: nil,
result: false,
},
{
op: "==",
lVal: nil, rVal: "foo",
result: false,
},
{
op: "==",
lVal: nil, rVal: nil,
result: false,
},
{
op: "!=",
lVal: "foo", rVal: "foo",
result: false,
},
{
op: "!=",
lVal: "foo", rVal: "bar",
result: true,
},
{
op: "!=",
lVal: nil, rVal: "foo",
result: true,
},
{
op: "!=",
lVal: "foo", rVal: nil,
result: true,
},
{
op: "!=",
lVal: nil, rVal: nil,
result: false,
},
{
op: "not",
lVal: "foo", rVal: "bar",
result: true,
},
{
op: structs.ConstraintVersion,
lVal: "1.2.3", rVal: "~> 1.0",
result: true,
},
{
op: structs.ConstraintVersion,
lVal: nil, rVal: "~> 1.0",
result: false,
},
{
op: structs.ConstraintRegex,
lVal: "foobarbaz", rVal: "[\\w]+",
result: true,
},
{
op: structs.ConstraintRegex,
lVal: nil, rVal: "[\\w]+",
result: false,
},
{
op: "<",
lVal: "foo", rVal: "bar",
result: false,
},
{
op: "<",
lVal: nil, rVal: "bar",
result: false,
},
{
op: structs.ConstraintSetContains,
lVal: "foo,bar,baz", rVal: "foo, bar ",
result: true,
},
{
op: structs.ConstraintSetContains,
lVal: "foo,bar,baz", rVal: "foo,bam",
result: false,
},
{
op: structs.ConstraintAttributeIsSet,
lVal: "foo",
result: true,
},
{
op: structs.ConstraintAttributeIsSet,
lVal: nil,
result: false,
},
{
op: structs.ConstraintAttributeIsNotSet,
lVal: nil,
result: true,
},
{
op: structs.ConstraintAttributeIsNotSet,
lVal: "foo",
result: false,
},
}
for _, tc := range cases {
_, ctx := testContext(t)
if res := checkConstraint(ctx, tc.op, tc.lVal, tc.rVal, tc.lVal != nil, tc.rVal != nil); res != tc.result {
t.Fatalf("TC: %#v, Result: %v", tc, res)
}
}
}
func TestCheckLexicalOrder(t *testing.T) {
type tcase struct {
op string
lVal, rVal interface{}
result bool
}
cases := []tcase{
{
op: "<",
lVal: "bar", rVal: "foo",
result: true,
},
{
op: "<=",
lVal: "foo", rVal: "foo",
result: true,
},
{
op: ">",
lVal: "bar", rVal: "foo",
result: false,
},
{
op: ">=",
lVal: "bar", rVal: "bar",
result: true,
},
{
op: ">",
lVal: 1, rVal: "foo",
result: false,
},
}
for _, tc := range cases {
if res := checkLexicalOrder(tc.op, tc.lVal, tc.rVal); res != tc.result {
t.Fatalf("TC: %#v, Result: %v", tc, res)
}
}
}
func TestCheckVersionConstraint(t *testing.T) {
t.Parallel()
type tcase struct {
lVal, rVal interface{}
result bool
}
cases := []tcase{
{
lVal: "1.2.3", rVal: "~> 1.0",
result: true,
},
{
lVal: "1.2.3", rVal: ">= 1.0, < 1.4",
result: true,
},
{
lVal: "2.0.1", rVal: "~> 1.0",
result: false,
},
{
lVal: "1.4", rVal: ">= 1.0, < 1.4",
result: false,
},
{
lVal: 1, rVal: "~> 1.0",
result: true,
},
{
// Prereleases are never > final releases
lVal: "1.3.0-beta1", rVal: ">= 0.6.1",
result: false,
},
{
// Prerelease X.Y.Z must match
lVal: "1.7.0-alpha1", rVal: ">= 1.6.0-beta1",
result: false,
},
{
// Meta is ignored
lVal: "1.3.0-beta1+ent", rVal: "= 1.3.0-beta1",
result: true,
},
}
for _, tc := range cases {
_, ctx := testContext(t)
p := newVersionConstraintParser(ctx)
if res := checkVersionMatch(ctx, p, tc.lVal, tc.rVal); res != tc.result {
t.Fatalf("TC: %#v, Result: %v", tc, res)
}
}
}
func TestCheckSemverConstraint(t *testing.T) {
t.Parallel()
type tcase struct {
name string
lVal, rVal interface{}
result bool
}
cases := []tcase{
{
name: "Pessimistic operator always fails 1",
lVal: "1.2.3", rVal: "~> 1.0",
result: false,
},
{
name: "1.2.3 does satisfy >= 1.0, < 1.4",
lVal: "1.2.3", rVal: ">= 1.0, < 1.4",
result: true,
},
{
name: "Pessimistic operator always fails 2",
lVal: "2.0.1", rVal: "~> 1.0",
result: false,
},
{
name: "1.4 does not satisfy >= 1.0, < 1.4",
lVal: "1.4", rVal: ">= 1.0, < 1.4",
result: false,
},
{
name: "Pessimistic operator always fails 3",
lVal: 1, rVal: "~> 1.0",
result: false,
},
{
name: "Prereleases are handled according to semver 1",
lVal: "1.3.0-beta1", rVal: ">= 0.6.1",
result: true,
},
{
name: "Prereleases are handled according to semver 2",
lVal: "1.7.0-alpha1", rVal: ">= 1.6.0-beta1",
result: true,
},
{
name: "Meta is ignored according to semver",
lVal: "1.3.0-beta1+ent", rVal: "= 1.3.0-beta1",
result: true,
},
}
for _, tc := range cases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
_, ctx := testContext(t)
p := newSemverConstraintParser(ctx)
actual := checkVersionMatch(ctx, p, tc.lVal, tc.rVal)
require.Equal(t, tc.result, actual)
})
}
}
func TestCheckRegexpConstraint(t *testing.T) {
type tcase struct {
lVal, rVal interface{}
result bool
}
cases := []tcase{
{
lVal: "foobar", rVal: "bar",
result: true,
},
{
lVal: "foobar", rVal: "^foo",
result: true,
},
{
lVal: "foobar", rVal: "^bar",
result: false,
},
{
lVal: "zipzap", rVal: "foo",
result: false,
},
{
lVal: 1, rVal: "foo",
result: false,
},
}
for _, tc := range cases {
_, ctx := testContext(t)
if res := checkRegexpMatch(ctx, tc.lVal, tc.rVal); res != tc.result {
t.Fatalf("TC: %#v, Result: %v", tc, res)
}
}
}
// This test puts allocations on the node to test if it detects infeasibility of
// nodes correctly and picks the only feasible one
func TestDistinctHostsIterator_JobDistinctHosts(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_hosts constraint and two task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
tg2 := &structs.TaskGroup{Name: "baz"}
job := &structs.Job{
ID: "foo",
Namespace: structs.DefaultNamespace,
Constraints: []*structs.Constraint{{Operand: structs.ConstraintDistinctHosts}},
TaskGroups: []*structs.TaskGroup{tg1, tg2},
}
// Add allocs placing tg1 on node1 and tg2 on node2. This should make the
// job unsatisfiable on all nodes but node3
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
},
}
plan.NodeAllocation[nodes[1].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
},
}
proposed := NewDistinctHostsIterator(ctx, static)
proposed.SetTaskGroup(tg1)
proposed.SetJob(job)
out := collectFeasible(proposed)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
if out[0].ID != nodes[2].ID {
t.Fatalf("wrong node picked")
}
}
func TestDistinctHostsIterator_JobDistinctHosts_InfeasibleCount(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_hosts constraint and three task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
tg2 := &structs.TaskGroup{Name: "baz"}
tg3 := &structs.TaskGroup{Name: "bam"}
job := &structs.Job{
ID: "foo",
Namespace: structs.DefaultNamespace,
Constraints: []*structs.Constraint{{Operand: structs.ConstraintDistinctHosts}},
TaskGroups: []*structs.TaskGroup{tg1, tg2, tg3},
}
// Add allocs placing tg1 on node1 and tg2 on node2. This should make the
// job unsatisfiable for tg3
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
ID: uuid.Generate(),
},
}
plan.NodeAllocation[nodes[1].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
ID: uuid.Generate(),
},
}
proposed := NewDistinctHostsIterator(ctx, static)
proposed.SetTaskGroup(tg3)
proposed.SetJob(job)
// It should not be able to place 3 tasks with only two nodes.
out := collectFeasible(proposed)
if len(out) != 0 {
t.Fatalf("Bad: %#v", out)
}
}
func TestDistinctHostsIterator_TaskGroupDistinctHosts(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
static := NewStaticIterator(ctx, nodes)
// Create a task group with a distinct_hosts constraint.
tg1 := &structs.TaskGroup{
Name: "example",
Constraints: []*structs.Constraint{
{Operand: structs.ConstraintDistinctHosts},
},
}
tg2 := &structs.TaskGroup{Name: "baz"}
// Add a planned alloc to node1.
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "foo",
},
}
// Add a planned alloc to node2 with the same task group name but a
// different job.
plan.NodeAllocation[nodes[1].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "bar",
},
}
proposed := NewDistinctHostsIterator(ctx, static)
proposed.SetTaskGroup(tg1)
proposed.SetJob(&structs.Job{
ID: "foo",
Namespace: structs.DefaultNamespace,
})
out := collectFeasible(proposed)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
// Expect it to skip the first node as there is a previous alloc on it for
// the same task group.
if out[0] != nodes[1] {
t.Fatalf("Bad: %v", out)
}
// Since the other task group doesn't have the constraint, both nodes should
// be feasible.
proposed.Reset()
proposed.SetTaskGroup(tg2)
out = collectFeasible(proposed)
if len(out) != 2 {
t.Fatalf("Bad: %#v", out)
}
}
// This test puts creates allocations across task groups that use a property
// value to detect if the constraint at the job level properly considers all
// task groups.
func TestDistinctPropertyIterator_JobDistinctProperty(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
for i, n := range nodes {
n.Meta["rack"] = fmt.Sprintf("%d", i)
// Add to state store
if err := state.UpsertNode(structs.MsgTypeTestSetup, uint64(100+i), n); err != nil {
t.Fatalf("failed to upsert node: %v", err)
}
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_property constraint and a task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
tg2 := &structs.TaskGroup{Name: "baz"}
job := &structs.Job{
ID: "foo",
Namespace: structs.DefaultNamespace,
Constraints: []*structs.Constraint{
{
Operand: structs.ConstraintDistinctProperty,
LTarget: "${meta.rack}",
},
},
TaskGroups: []*structs.TaskGroup{tg1, tg2},
}
// Add allocs placing tg1 on node1 and 2 and tg2 on node3 and 4. This should make the
// job unsatisfiable on all nodes but node5. Also mix the allocations
// existing in the plan and the state store.
plan := ctx.Plan()
alloc1ID := uuid.Generate()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: alloc1ID,
NodeID: nodes[0].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
plan.NodeAllocation[nodes[2].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[2].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
NodeID: nodes[2].ID,
},
}
// Put an allocation on Node 5 but make it stopped in the plan
stoppingAllocID := uuid.Generate()
plan.NodeUpdate[nodes[4].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
NodeID: nodes[4].ID,
},
}
upserting := []*structs.Allocation{
// Have one of the allocations exist in both the plan and the state
// store. This resembles an allocation update
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: alloc1ID,
EvalID: uuid.Generate(),
NodeID: nodes[0].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[3].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[3].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
EvalID: uuid.Generate(),
NodeID: nodes[4].ID,
},
}
if err := state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, upserting); err != nil {
t.Fatalf("failed to UpsertAllocs: %v", err)
}
proposed := NewDistinctPropertyIterator(ctx, static)
proposed.SetJob(job)
proposed.SetTaskGroup(tg2)
proposed.Reset()
out := collectFeasible(proposed)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
if out[0].ID != nodes[4].ID {
t.Fatalf("wrong node picked")
}
}
// This test creates allocations across task groups that use a property value to
// detect if the constraint at the job level properly considers all task groups
// when the constraint allows a count greater than one
func TestDistinctPropertyIterator_JobDistinctProperty_Count(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
}
for i, n := range nodes {
n.Meta["rack"] = fmt.Sprintf("%d", i)
// Add to state store
if err := state.UpsertNode(structs.MsgTypeTestSetup, uint64(100+i), n); err != nil {
t.Fatalf("failed to upsert node: %v", err)
}
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_property constraint and a task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
tg2 := &structs.TaskGroup{Name: "baz"}
job := &structs.Job{
ID: "foo",
Namespace: structs.DefaultNamespace,
Constraints: []*structs.Constraint{
{
Operand: structs.ConstraintDistinctProperty,
LTarget: "${meta.rack}",
RTarget: "2",
},
},
TaskGroups: []*structs.TaskGroup{tg1, tg2},
}
// Add allocs placing two allocations on both node 1 and 2 and only one on
// node 3. This should make the job unsatisfiable on all nodes but node5.
// Also mix the allocations existing in the plan and the state store.
plan := ctx.Plan()
alloc1ID := uuid.Generate()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: alloc1ID,
NodeID: nodes[0].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: alloc1ID,
NodeID: nodes[0].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
plan.NodeAllocation[nodes[1].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[1].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[1].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
NodeID: nodes[1].ID,
},
}
plan.NodeAllocation[nodes[2].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[2].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
NodeID: nodes[2].ID,
},
}
// Put an allocation on Node 3 but make it stopped in the plan
stoppingAllocID := uuid.Generate()
plan.NodeUpdate[nodes[2].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
NodeID: nodes[2].ID,
},
}
upserting := []*structs.Allocation{
// Have one of the allocations exist in both the plan and the state
// store. This resembles an allocation update
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: alloc1ID,
EvalID: uuid.Generate(),
NodeID: nodes[0].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[0].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
}
if err := state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, upserting); err != nil {
t.Fatalf("failed to UpsertAllocs: %v", err)
}
proposed := NewDistinctPropertyIterator(ctx, static)
proposed.SetJob(job)
proposed.SetTaskGroup(tg2)
proposed.Reset()
out := collectFeasible(proposed)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
if out[0].ID != nodes[2].ID {
t.Fatalf("wrong node picked")
}
}
// This test checks that if a node has an allocation on it that gets stopped,
// there is a plan to re-use that for a new allocation, that the next select
// won't select that node.
func TestDistinctPropertyIterator_JobDistinctProperty_RemoveAndReplace(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
}
nodes[0].Meta["rack"] = "1"
// Add to state store
if err := state.UpsertNode(structs.MsgTypeTestSetup, uint64(100), nodes[0]); err != nil {
t.Fatalf("failed to upsert node: %v", err)
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_property constraint and a task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
job := &structs.Job{
Namespace: structs.DefaultNamespace,
ID: "foo",
Constraints: []*structs.Constraint{
{
Operand: structs.ConstraintDistinctProperty,
LTarget: "${meta.rack}",
},
},
TaskGroups: []*structs.TaskGroup{tg1},
}
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
stoppingAllocID := uuid.Generate()
plan.NodeUpdate[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
NodeID: nodes[0].ID,
},
}
upserting := []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
EvalID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
if err := state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, upserting); err != nil {
t.Fatalf("failed to UpsertAllocs: %v", err)
}
proposed := NewDistinctPropertyIterator(ctx, static)
proposed.SetJob(job)
proposed.SetTaskGroup(tg1)
proposed.Reset()
out := collectFeasible(proposed)
if len(out) != 0 {
t.Fatalf("Bad: %#v", out)
}
}
// This test creates previous allocations selecting certain property values to
// test if it detects infeasibility of property values correctly and picks the
// only feasible one
func TestDistinctPropertyIterator_JobDistinctProperty_Infeasible(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
for i, n := range nodes {
n.Meta["rack"] = fmt.Sprintf("%d", i)
// Add to state store
if err := state.UpsertNode(structs.MsgTypeTestSetup, uint64(100+i), n); err != nil {
t.Fatalf("failed to upsert node: %v", err)
}
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_property constraint and a task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
tg2 := &structs.TaskGroup{Name: "baz"}
tg3 := &structs.TaskGroup{Name: "bam"}
job := &structs.Job{
Namespace: structs.DefaultNamespace,
ID: "foo",
Constraints: []*structs.Constraint{
{
Operand: structs.ConstraintDistinctProperty,
LTarget: "${meta.rack}",
},
},
TaskGroups: []*structs.TaskGroup{tg1, tg2, tg3},
}
// Add allocs placing tg1 on node1 and tg2 on node2. This should make the
// job unsatisfiable for tg3.
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
upserting := []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
}
if err := state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, upserting); err != nil {
t.Fatalf("failed to UpsertAllocs: %v", err)
}
proposed := NewDistinctPropertyIterator(ctx, static)
proposed.SetJob(job)
proposed.SetTaskGroup(tg3)
proposed.Reset()
out := collectFeasible(proposed)
if len(out) != 0 {
t.Fatalf("Bad: %#v", out)
}
}
// This test creates previous allocations selecting certain property values to
// test if it detects infeasibility of property values correctly and picks the
// only feasible one
func TestDistinctPropertyIterator_JobDistinctProperty_Infeasible_Count(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
for i, n := range nodes {
n.Meta["rack"] = fmt.Sprintf("%d", i)
// Add to state store
if err := state.UpsertNode(structs.MsgTypeTestSetup, uint64(100+i), n); err != nil {
t.Fatalf("failed to upsert node: %v", err)
}
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a distinct_property constraint and a task groups.
tg1 := &structs.TaskGroup{Name: "bar"}
tg2 := &structs.TaskGroup{Name: "baz"}
tg3 := &structs.TaskGroup{Name: "bam"}
job := &structs.Job{
Namespace: structs.DefaultNamespace,
ID: "foo",
Constraints: []*structs.Constraint{
{
Operand: structs.ConstraintDistinctProperty,
LTarget: "${meta.rack}",
RTarget: "2",
},
},
TaskGroups: []*structs.TaskGroup{tg1, tg2, tg3},
}
// Add allocs placing two tg1's on node1 and two tg2's on node2. This should
// make the job unsatisfiable for tg3.
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
upserting := []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg2.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
}
if err := state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, upserting); err != nil {
t.Fatalf("failed to UpsertAllocs: %v", err)
}
proposed := NewDistinctPropertyIterator(ctx, static)
proposed.SetJob(job)
proposed.SetTaskGroup(tg3)
proposed.Reset()
out := collectFeasible(proposed)
if len(out) != 0 {
t.Fatalf("Bad: %#v", out)
}
}
// This test creates previous allocations selecting certain property values to
// test if it detects infeasibility of property values correctly and picks the
// only feasible one when the constraint is at the task group.
func TestDistinctPropertyIterator_TaskGroupDistinctProperty(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
}
for i, n := range nodes {
n.Meta["rack"] = fmt.Sprintf("%d", i)
// Add to state store
if err := state.UpsertNode(structs.MsgTypeTestSetup, uint64(100+i), n); err != nil {
t.Fatalf("failed to upsert node: %v", err)
}
}
static := NewStaticIterator(ctx, nodes)
// Create a job with a task group with the distinct_property constraint
tg1 := &structs.TaskGroup{
Name: "example",
Constraints: []*structs.Constraint{
{
Operand: structs.ConstraintDistinctProperty,
LTarget: "${meta.rack}",
},
},
}
tg2 := &structs.TaskGroup{Name: "baz"}
job := &structs.Job{
Namespace: structs.DefaultNamespace,
ID: "foo",
TaskGroups: []*structs.TaskGroup{tg1, tg2},
}
// Add allocs placing tg1 on node1 and 2. This should make the
// job unsatisfiable on all nodes but node3. Also mix the allocations
// existing in the plan and the state store.
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
NodeID: nodes[0].ID,
},
}
// Put an allocation on Node 3 but make it stopped in the plan
stoppingAllocID := uuid.Generate()
plan.NodeUpdate[nodes[2].ID] = []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
NodeID: nodes[2].ID,
},
}
upserting := []*structs.Allocation{
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].ID,
},
// Should be ignored as it is a different job.
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: "ignore 2",
Job: job,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[2].ID,
},
{
Namespace: structs.DefaultNamespace,
TaskGroup: tg1.Name,
JobID: job.ID,
Job: job,
ID: stoppingAllocID,
EvalID: uuid.Generate(),
NodeID: nodes[2].ID,
},
}
if err := state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, upserting); err != nil {
t.Fatalf("failed to UpsertAllocs: %v", err)
}
proposed := NewDistinctPropertyIterator(ctx, static)
proposed.SetJob(job)
proposed.SetTaskGroup(tg1)
proposed.Reset()
out := collectFeasible(proposed)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
if out[0].ID != nodes[2].ID {
t.Fatalf("wrong node picked")
}
// Since the other task group doesn't have the constraint, both nodes should
// be feasible.
proposed.SetTaskGroup(tg2)
proposed.Reset()
out = collectFeasible(proposed)
if len(out) != 3 {
t.Fatalf("Bad: %#v", out)
}
}
func collectFeasible(iter FeasibleIterator) (out []*structs.Node) {
for {
next := iter.Next()
if next == nil {
break
}
out = append(out, next)
}
return
}
// mockFeasibilityChecker is a FeasibilityChecker that returns predetermined
// feasibility values.
type mockFeasibilityChecker struct {
retVals []bool
i int
}
func newMockFeasibilityChecker(values ...bool) *mockFeasibilityChecker {
return &mockFeasibilityChecker{retVals: values}
}
func (c *mockFeasibilityChecker) Feasible(*structs.Node) bool {
if c.i >= len(c.retVals) {
c.i++
return false
}
f := c.retVals[c.i]
c.i++
return f
}
// calls returns how many times the checker was called.
func (c *mockFeasibilityChecker) calls() int { return c.i }
func TestFeasibilityWrapper_JobIneligible(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{mock.Node()}
static := NewStaticIterator(ctx, nodes)
mocked := newMockFeasibilityChecker(false)
wrapper := NewFeasibilityWrapper(ctx, static, []FeasibilityChecker{mocked}, nil, nil)
// Set the job to ineligible
ctx.Eligibility().SetJobEligibility(false, nodes[0].ComputedClass)
// Run the wrapper.
out := collectFeasible(wrapper)
if out != nil || mocked.calls() != 0 {
t.Fatalf("bad: %#v %d", out, mocked.calls())
}
}
func TestFeasibilityWrapper_JobEscapes(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{mock.Node()}
static := NewStaticIterator(ctx, nodes)
mocked := newMockFeasibilityChecker(false)
wrapper := NewFeasibilityWrapper(ctx, static, []FeasibilityChecker{mocked}, nil, nil)
// Set the job to escaped
cc := nodes[0].ComputedClass
ctx.Eligibility().job[cc] = EvalComputedClassEscaped
// Run the wrapper.
out := collectFeasible(wrapper)
if out != nil || mocked.calls() != 1 {
t.Fatalf("bad: %#v", out)
}
// Ensure that the job status didn't change from escaped even though the
// option failed.
if status := ctx.Eligibility().JobStatus(cc); status != EvalComputedClassEscaped {
t.Fatalf("job status is %v; want %v", status, EvalComputedClassEscaped)
}
}
func TestFeasibilityWrapper_JobAndTg_Eligible(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{mock.Node()}
static := NewStaticIterator(ctx, nodes)
jobMock := newMockFeasibilityChecker(true)
tgMock := newMockFeasibilityChecker(false)
wrapper := NewFeasibilityWrapper(ctx, static, []FeasibilityChecker{jobMock}, []FeasibilityChecker{tgMock}, nil)
// Set the job to escaped
cc := nodes[0].ComputedClass
ctx.Eligibility().job[cc] = EvalComputedClassEligible
ctx.Eligibility().SetTaskGroupEligibility(true, "foo", cc)
wrapper.SetTaskGroup("foo")
// Run the wrapper.
out := collectFeasible(wrapper)
if out == nil || tgMock.calls() != 0 {
t.Fatalf("bad: %#v %v", out, tgMock.calls())
}
}
func TestFeasibilityWrapper_JobEligible_TgIneligible(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{mock.Node()}
static := NewStaticIterator(ctx, nodes)
jobMock := newMockFeasibilityChecker(true)
tgMock := newMockFeasibilityChecker(false)
wrapper := NewFeasibilityWrapper(ctx, static, []FeasibilityChecker{jobMock}, []FeasibilityChecker{tgMock}, nil)
// Set the job to escaped
cc := nodes[0].ComputedClass
ctx.Eligibility().job[cc] = EvalComputedClassEligible
ctx.Eligibility().SetTaskGroupEligibility(false, "foo", cc)
wrapper.SetTaskGroup("foo")
// Run the wrapper.
out := collectFeasible(wrapper)
if out != nil || tgMock.calls() != 0 {
t.Fatalf("bad: %#v %v", out, tgMock.calls())
}
}
func TestFeasibilityWrapper_JobEligible_TgEscaped(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{mock.Node()}
static := NewStaticIterator(ctx, nodes)
jobMock := newMockFeasibilityChecker(true)
tgMock := newMockFeasibilityChecker(true)
wrapper := NewFeasibilityWrapper(ctx, static, []FeasibilityChecker{jobMock}, []FeasibilityChecker{tgMock}, nil)
// Set the job to escaped
cc := nodes[0].ComputedClass
ctx.Eligibility().job[cc] = EvalComputedClassEligible
ctx.Eligibility().taskGroups["foo"] =
map[string]ComputedClassFeasibility{cc: EvalComputedClassEscaped}
wrapper.SetTaskGroup("foo")
// Run the wrapper.
out := collectFeasible(wrapper)
if out == nil || tgMock.calls() != 1 {
t.Fatalf("bad: %#v %v", out, tgMock.calls())
}
if e, ok := ctx.Eligibility().taskGroups["foo"][cc]; !ok || e != EvalComputedClassEscaped {
t.Fatalf("bad: %v %v", e, ok)
}
}
func TestSetContainsAny(t *testing.T) {
require.True(t, checkSetContainsAny("a", "a"))
require.True(t, checkSetContainsAny("a,b", "a"))
require.True(t, checkSetContainsAny(" a,b ", "a "))
require.True(t, checkSetContainsAny("a", "a"))
require.False(t, checkSetContainsAny("b", "a"))
}
func TestDeviceChecker(t *testing.T) {
getTg := func(devices ...*structs.RequestedDevice) *structs.TaskGroup {
return &structs.TaskGroup{
Name: "example",
Tasks: []*structs.Task{
{
Resources: &structs.Resources{
Devices: devices,
},
},
},
}
}
// Just type
gpuTypeReq := &structs.RequestedDevice{
Name: "gpu",
Count: 1,
}
fpgaTypeReq := &structs.RequestedDevice{
Name: "fpga",
Count: 1,
}
// vendor/type
gpuVendorTypeReq := &structs.RequestedDevice{
Name: "nvidia/gpu",
Count: 1,
}
fpgaVendorTypeReq := &structs.RequestedDevice{
Name: "nvidia/fpga",
Count: 1,
}
// vendor/type/model
gpuFullReq := &structs.RequestedDevice{
Name: "nvidia/gpu/1080ti",
Count: 1,
}
fpgaFullReq := &structs.RequestedDevice{
Name: "nvidia/fpga/F100",
Count: 1,
}
// Just type but high count
gpuTypeHighCountReq := &structs.RequestedDevice{
Name: "gpu",
Count: 3,
}
getNode := func(devices ...*structs.NodeDeviceResource) *structs.Node {
n := mock.Node()
n.NodeResources.Devices = devices
return n
}
nvidia := &structs.NodeDeviceResource{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
Attributes: map[string]*psstructs.Attribute{
"memory": psstructs.NewIntAttribute(4, psstructs.UnitGiB),
"pci_bandwidth": psstructs.NewIntAttribute(995, psstructs.UnitMiBPerS),
"cores_clock": psstructs.NewIntAttribute(800, psstructs.UnitMHz),
},
Instances: []*structs.NodeDevice{
{
ID: uuid.Generate(),
Healthy: true,
},
{
ID: uuid.Generate(),
Healthy: true,
},
},
}
nvidiaUnhealthy := &structs.NodeDeviceResource{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
Instances: []*structs.NodeDevice{
{
ID: uuid.Generate(),
Healthy: false,
},
{
ID: uuid.Generate(),
Healthy: false,
},
},
}
cases := []struct {
Name string
Result bool
NodeDevices []*structs.NodeDeviceResource
RequestedDevices []*structs.RequestedDevice
}{
{
Name: "no devices on node",
Result: false,
NodeDevices: nil,
RequestedDevices: []*structs.RequestedDevice{gpuTypeReq},
},
{
Name: "no requested devices on empty node",
Result: true,
NodeDevices: nil,
RequestedDevices: nil,
},
{
Name: "gpu devices by type",
Result: true,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{gpuTypeReq},
},
{
Name: "wrong devices by type",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{fpgaTypeReq},
},
{
Name: "devices by type unhealthy node",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidiaUnhealthy},
RequestedDevices: []*structs.RequestedDevice{gpuTypeReq},
},
{
Name: "gpu devices by vendor/type",
Result: true,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{gpuVendorTypeReq},
},
{
Name: "wrong devices by vendor/type",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{fpgaVendorTypeReq},
},
{
Name: "gpu devices by vendor/type/model",
Result: true,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{gpuFullReq},
},
{
Name: "wrong devices by vendor/type/model",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{fpgaFullReq},
},
{
Name: "too many requested",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{gpuTypeHighCountReq},
},
{
Name: "meets constraints requirement",
Result: true,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
Constraints: []*structs.Constraint{
{
Operand: "=",
LTarget: "${device.model}",
RTarget: "1080ti",
},
{
Operand: ">",
LTarget: "${device.attr.memory}",
RTarget: "1320.5 MB",
},
{
Operand: "<=",
LTarget: "${device.attr.pci_bandwidth}",
RTarget: ".98 GiB/s",
},
{
Operand: "=",
LTarget: "${device.attr.cores_clock}",
RTarget: "800MHz",
},
},
},
},
},
{
Name: "meets constraints requirement multiple count",
Result: true,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 2,
Constraints: []*structs.Constraint{
{
Operand: "=",
LTarget: "${device.model}",
RTarget: "1080ti",
},
{
Operand: ">",
LTarget: "${device.attr.memory}",
RTarget: "1320.5 MB",
},
{
Operand: "<=",
LTarget: "${device.attr.pci_bandwidth}",
RTarget: ".98 GiB/s",
},
{
Operand: "=",
LTarget: "${device.attr.cores_clock}",
RTarget: "800MHz",
},
},
},
},
},
{
Name: "meets constraints requirement over count",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 5,
Constraints: []*structs.Constraint{
{
Operand: "=",
LTarget: "${device.model}",
RTarget: "1080ti",
},
{
Operand: ">",
LTarget: "${device.attr.memory}",
RTarget: "1320.5 MB",
},
{
Operand: "<=",
LTarget: "${device.attr.pci_bandwidth}",
RTarget: ".98 GiB/s",
},
{
Operand: "=",
LTarget: "${device.attr.cores_clock}",
RTarget: "800MHz",
},
},
},
},
},
{
Name: "does not meet first constraint",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
Constraints: []*structs.Constraint{
{
Operand: "=",
LTarget: "${device.model}",
RTarget: "2080ti",
},
{
Operand: ">",
LTarget: "${device.attr.memory}",
RTarget: "1320.5 MB",
},
{
Operand: "<=",
LTarget: "${device.attr.pci_bandwidth}",
RTarget: ".98 GiB/s",
},
{
Operand: "=",
LTarget: "${device.attr.cores_clock}",
RTarget: "800MHz",
},
},
},
},
},
{
Name: "does not meet second constraint",
Result: false,
NodeDevices: []*structs.NodeDeviceResource{nvidia},
RequestedDevices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
Constraints: []*structs.Constraint{
{
Operand: "=",
LTarget: "${device.model}",
RTarget: "1080ti",
},
{
Operand: "<",
LTarget: "${device.attr.memory}",
RTarget: "1320.5 MB",
},
{
Operand: "<=",
LTarget: "${device.attr.pci_bandwidth}",
RTarget: ".98 GiB/s",
},
{
Operand: "=",
LTarget: "${device.attr.cores_clock}",
RTarget: "800MHz",
},
},
},
},
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
_, ctx := testContext(t)
checker := NewDeviceChecker(ctx)
checker.SetTaskGroup(getTg(c.RequestedDevices...))
if act := checker.Feasible(getNode(c.NodeDevices...)); act != c.Result {
t.Fatalf("got %v; want %v", act, c.Result)
}
})
}
}
func TestCheckAttributeConstraint(t *testing.T) {
type tcase struct {
op string
lVal, rVal *psstructs.Attribute
result bool
}
cases := []tcase{
{
op: "=",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("foo"),
result: true,
},
{
op: "=",
lVal: nil,
rVal: nil,
result: false,
},
{
op: "is",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("foo"),
result: true,
},
{
op: "==",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("foo"),
result: true,
},
{
op: "!=",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("foo"),
result: false,
},
{
op: "!=",
lVal: nil,
rVal: psstructs.NewStringAttribute("foo"),
result: true,
},
{
op: "!=",
lVal: psstructs.NewStringAttribute("foo"),
rVal: nil,
result: true,
},
{
op: "!=",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("bar"),
result: true,
},
{
op: "not",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("bar"),
result: true,
},
{
op: structs.ConstraintVersion,
lVal: psstructs.NewStringAttribute("1.2.3"),
rVal: psstructs.NewStringAttribute("~> 1.0"),
result: true,
},
{
op: structs.ConstraintRegex,
lVal: psstructs.NewStringAttribute("foobarbaz"),
rVal: psstructs.NewStringAttribute("[\\w]+"),
result: true,
},
{
op: "<",
lVal: psstructs.NewStringAttribute("foo"),
rVal: psstructs.NewStringAttribute("bar"),
result: false,
},
{
op: structs.ConstraintSetContains,
lVal: psstructs.NewStringAttribute("foo,bar,baz"),
rVal: psstructs.NewStringAttribute("foo, bar "),
result: true,
},
{
op: structs.ConstraintSetContainsAll,
lVal: psstructs.NewStringAttribute("foo,bar,baz"),
rVal: psstructs.NewStringAttribute("foo, bar "),
result: true,
},
{
op: structs.ConstraintSetContains,
lVal: psstructs.NewStringAttribute("foo,bar,baz"),
rVal: psstructs.NewStringAttribute("foo,bam"),
result: false,
},
{
op: structs.ConstraintSetContainsAny,
lVal: psstructs.NewStringAttribute("foo,bar,baz"),
rVal: psstructs.NewStringAttribute("foo,bam"),
result: true,
},
{
op: structs.ConstraintAttributeIsSet,
lVal: psstructs.NewStringAttribute("foo,bar,baz"),
result: true,
},
{
op: structs.ConstraintAttributeIsSet,
lVal: nil,
result: false,
},
{
op: structs.ConstraintAttributeIsNotSet,
lVal: psstructs.NewStringAttribute("foo,bar,baz"),
result: false,
},
{
op: structs.ConstraintAttributeIsNotSet,
lVal: nil,
result: true,
},
}
for _, tc := range cases {
_, ctx := testContext(t)
if res := checkAttributeConstraint(ctx, tc.op, tc.lVal, tc.rVal, tc.lVal != nil, tc.rVal != nil); res != tc.result {
t.Fatalf("TC: %#v, Result: %v", tc, res)
}
}
}