Files
spinifex/tests/e2e/lb/lb_test.go
T
joshsiv-mulga afa933ac05 feat(e2e): share probe client across both internal LB suites + SG fixes
- Replaces per-suite probe client with a single shared VM launched in the
  fixture. Saves ~60s by avoiding a cold boot between the ALB and NLB
  internal suites.
- Client cloud-init exposes a JSON trigger endpoint on :9090 in addition
  to the http.server on :80 (results dir). Each suite POSTs
  {proto, ip, count, outfile, http_port, tcp_port} to run a probe loop
  against the LB private IP and writes the result file under /tmp/httpd
  for the driver to fetch back.
- configureDefaultSG now uses the structured IpPermissions form (top-level
  shortcut is silently ignored by vpcd — tracked separately) and opens
  port 9090 in addition to 80 + 9000.
- deleteLB captures the underlying sys.micro VM id via the LB ENI before
  delete, then polls DescribeLoadBalancers until LoadBalancerNotFound so
  the next suite doesn't race the capacity reclaim.
- Internal_NLB sleeps 15s up front to let the ALB sys.micro deallocate
  fully before its own createLB fires. DescribeLoadBalancers can report
  the ALB gone before the vCPU/memory allocation is actually released on
  capacity-tight dev hosts; without this settle, NLB's createLB trips the
  sys.micro reserve and lands in terminal state=failed. Still cheaper
  than cold-booting a per-suite client.
2026-05-18 16:10:12 +10:00

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//go:build e2e
package lb
import (
"bytes"
"context"
_ "embed"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"net/http"
"os"
"strings"
"testing"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/elbv2"
"github.com/mulgadc/spinifex/tests/e2e/harness"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
//go:embed testdata/app-userdata.sh
var appUserData string
const (
lbVPCCIDR = "10.200.0.0/16"
lbSubnetCIDR = "10.200.1.0/24"
lbKeyName = "lb-e2e-key"
httpPort = 80
tcpPort = 9000
triggerPort = 9090
probesPerRun = 20
)
// LB kind: ALB or NLB. Used to parameterise the per-suite path.
type lbKind string
const (
kindALB lbKind = "ALB"
kindNLB lbKind = "NLB"
)
// TestLoadBalancer ports run-lb-e2e.sh. Each of the 4 LB variants (ALB/NLB ×
// internet-facing/internal) runs as its own sequential subtest with its own
// LB, listener, target group, and (for internal) client VM. Sequential
// scheduling keeps peak instance count low (2 app + 1 LB + 1 client = 4) so
// the suite passes on capacity-constrained dev nodes — see mulga-siv-77 for
// the underlying placement bug.
func TestLoadBalancer(t *testing.T) {
env := harness.LoadEnv(t)
skipIfDevNetworking(t, env)
artifacts := harness.ArtifactDir(t, env)
client := harness.NewAWSClient(t, env)
fixture := setupSharedFixture(t, client, artifacts)
peer := pickPeer(env)
var ssh *harness.PeerSSH
if peer != "" {
ssh = harness.NewPeerSSH()
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
if err := ssh.Ping(ctx, peer); err != nil {
t.Logf("cannot SSH to peer %s: %v (internet-facing suites will skip)", peer, err)
peer = ""
ssh = nil
}
}
t.Run("InternetFacing_ALB", func(t *testing.T) {
if peer == "" {
t.Skip("no peer node available")
}
runLBSuite(t, client, fixture, kindALB, "internet-facing", ssh, peer)
})
t.Run("InternetFacing_NLB", func(t *testing.T) {
if peer == "" {
t.Skip("no peer node available")
}
runLBSuite(t, client, fixture, kindNLB, "internet-facing", ssh, peer)
})
t.Run("Internal_ALB", func(t *testing.T) {
runLBSuite(t, client, fixture, kindALB, "internal", nil, "")
})
t.Run("Internal_NLB", func(t *testing.T) {
// DescribeLoadBalancers reports the ALB gone before the sys.micro VM's
// vCPU/memory allocation is actually reclaimed. Without this settle,
// NLB's createLB races the deallocate on capacity-tight dev hosts and
// trips the sys.micro reserve, ending up in terminal state=failed.
// Cheaper than cold-booting a fresh probe client per suite.
time.Sleep(15 * time.Second)
runLBSuite(t, client, fixture, kindNLB, "internal", nil, "")
})
}
// --- Fixture: shared VPC, subnet, IGW, SG, app instances ----------------
type sharedFixture struct {
VPCID string
SubnetID string
IGWID string
SecurityGroup string
AMIID string
InstanceType string
AppInstanceIDs []string
ClientID string
ClientPublicIP string
}
func setupSharedFixture(t *testing.T, c *harness.AWSClient, artifacts string) *sharedFixture {
t.Helper()
f := &sharedFixture{}
f.InstanceType = discoverNanoInstanceType(t, c)
f.AMIID = discoverAMI(t, c)
ensureKeyPair(t, c)
t.Cleanup(func() { deleteKeyPair(t, c) })
createVPC(t, c, f)
t.Cleanup(func() { deleteVPC(t, c, f) })
createIGW(t, c, f)
t.Cleanup(func() { deleteIGW(t, c, f) })
createSubnet(t, c, f)
t.Cleanup(func() { deleteSubnet(t, c, f) })
configureDefaultSG(t, c, f)
launchAppInstances(t, c, f)
t.Cleanup(func() { terminateInstances(t, c, f.AppInstanceIDs) })
launchSharedProbeClient(t, c, f)
t.Cleanup(func() { terminateInstances(t, c, []string{f.ClientID}) })
harness.OnFailure(t, func() {
dumpDaemonLogs(t, artifacts, "setup")
})
return f
}
//go:embed testdata/client-userdata.sh
var clientUserData string
// --- Discovery helpers ---------------------------------------------------
func skipIfDevNetworking(t *testing.T, env *harness.Env) {
t.Helper()
cfg := os.ExpandEnv("$HOME/spinifex/config/spinifex.toml")
if env.ConfigDir != "" {
cfg = env.ConfigDir + "/spinifex.toml"
}
raw, err := os.ReadFile(cfg)
if err != nil {
return
}
if bytes.Contains(raw, []byte("dev_networking = true")) {
t.Skip("dev_networking enabled in spinifex.toml; LB E2E requires pool mode w/ external IPAM")
}
}
func pickPeer(env *harness.Env) string {
if len(env.NodeIPs) < 2 {
return ""
}
return env.NodeIPs[1]
}
func discoverNanoInstanceType(t *testing.T, c *harness.AWSClient) string {
t.Helper()
out, err := c.EC2.DescribeInstanceTypes(&ec2.DescribeInstanceTypesInput{})
require.NoError(t, err)
for _, it := range out.InstanceTypes {
name := aws.StringValue(it.InstanceType)
if strings.Contains(name, "nano") {
t.Logf("instance type: %s", name)
return name
}
}
t.Fatal("no nano instance type available")
return ""
}
func discoverAMI(t *testing.T, c *harness.AWSClient) string {
t.Helper()
out, err := c.EC2.DescribeImages(&ec2.DescribeImagesInput{})
require.NoError(t, err)
var fallback, nonAlpine, ubuntu string
for _, img := range out.Images {
id := aws.StringValue(img.ImageId)
name := aws.StringValue(img.Name)
if fallback == "" {
fallback = id
}
if !strings.Contains(strings.ToLower(name), "alpine") && nonAlpine == "" {
nonAlpine = id
}
if strings.HasPrefix(name, "ami-ubuntu") {
ubuntu = id
break
}
}
for _, candidate := range []string{ubuntu, nonAlpine, fallback} {
if candidate != "" {
t.Logf("AMI: %s", candidate)
return candidate
}
}
t.Fatal("no AMIs available")
return ""
}
func ensureKeyPair(t *testing.T, c *harness.AWSClient) {
t.Helper()
_, _ = c.EC2.DeleteKeyPair(&ec2.DeleteKeyPairInput{KeyName: aws.String(lbKeyName)})
_, err := c.EC2.CreateKeyPair(&ec2.CreateKeyPairInput{KeyName: aws.String(lbKeyName)})
require.NoError(t, err, "create key pair %s", lbKeyName)
}
func deleteKeyPair(t *testing.T, c *harness.AWSClient) {
t.Helper()
if _, err := c.EC2.DeleteKeyPair(&ec2.DeleteKeyPairInput{KeyName: aws.String(lbKeyName)}); err != nil {
t.Logf("delete key pair: %v", err)
}
}
// --- VPC / Subnet / IGW / SG --------------------------------------------
func createVPC(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
out, err := c.EC2.CreateVpc(&ec2.CreateVpcInput{CidrBlock: aws.String(lbVPCCIDR)})
require.NoError(t, err)
f.VPCID = aws.StringValue(out.Vpc.VpcId)
t.Logf("VPC: %s", f.VPCID)
}
func deleteVPC(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
if f.VPCID == "" {
return
}
if _, err := c.EC2.DeleteVpc(&ec2.DeleteVpcInput{VpcId: aws.String(f.VPCID)}); err != nil {
t.Logf("delete VPC %s: %v", f.VPCID, err)
}
}
func createIGW(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
out, err := c.EC2.CreateInternetGateway(&ec2.CreateInternetGatewayInput{})
require.NoError(t, err)
f.IGWID = aws.StringValue(out.InternetGateway.InternetGatewayId)
_, err = c.EC2.AttachInternetGateway(&ec2.AttachInternetGatewayInput{
InternetGatewayId: aws.String(f.IGWID),
VpcId: aws.String(f.VPCID),
})
require.NoError(t, err)
t.Logf("IGW: %s (attached to %s)", f.IGWID, f.VPCID)
}
func deleteIGW(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
if f.IGWID == "" {
return
}
_, _ = c.EC2.DetachInternetGateway(&ec2.DetachInternetGatewayInput{
InternetGatewayId: aws.String(f.IGWID),
VpcId: aws.String(f.VPCID),
})
if _, err := c.EC2.DeleteInternetGateway(&ec2.DeleteInternetGatewayInput{
InternetGatewayId: aws.String(f.IGWID),
}); err != nil {
t.Logf("delete IGW: %v", err)
}
}
func createSubnet(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
out, err := c.EC2.CreateSubnet(&ec2.CreateSubnetInput{
VpcId: aws.String(f.VPCID),
CidrBlock: aws.String(lbSubnetCIDR),
})
require.NoError(t, err)
f.SubnetID = aws.StringValue(out.Subnet.SubnetId)
_, err = c.EC2.ModifySubnetAttribute(&ec2.ModifySubnetAttributeInput{
SubnetId: aws.String(f.SubnetID),
MapPublicIpOnLaunch: &ec2.AttributeBooleanValue{Value: aws.Bool(true)},
})
require.NoError(t, err)
t.Logf("subnet: %s (MapPublicIpOnLaunch)", f.SubnetID)
}
func deleteSubnet(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
if f.SubnetID == "" {
return
}
if _, err := c.EC2.DeleteSubnet(&ec2.DeleteSubnetInput{SubnetId: aws.String(f.SubnetID)}); err != nil {
t.Logf("delete subnet: %v", err)
}
}
func configureDefaultSG(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
out, err := c.EC2.DescribeSecurityGroups(&ec2.DescribeSecurityGroupsInput{
Filters: []*ec2.Filter{
{Name: aws.String("vpc-id"), Values: []*string{aws.String(f.VPCID)}},
{Name: aws.String("group-name"), Values: []*string{aws.String("default")}},
},
})
require.NoError(t, err)
require.NotEmpty(t, out.SecurityGroups, "VPC default SG missing")
f.SecurityGroup = aws.StringValue(out.SecurityGroups[0].GroupId)
t.Logf("default SG: %s", f.SecurityGroup)
// Use structured IpPermissions form — spinifex's vpcd ignores the
// top-level IpProtocol/FromPort/ToPort/CidrIp shortcut and silently
// returns newRules=0, so the OVN ACL is never installed and ingress
// drops at the port group. Filed as a separate bead on the daemon side.
for _, port := range []int64{httpPort, tcpPort, triggerPort} {
_, err := c.EC2.AuthorizeSecurityGroupIngress(&ec2.AuthorizeSecurityGroupIngressInput{
GroupId: aws.String(f.SecurityGroup),
IpPermissions: []*ec2.IpPermission{{
IpProtocol: aws.String("tcp"),
FromPort: aws.Int64(port),
ToPort: aws.Int64(port),
IpRanges: []*ec2.IpRange{{CidrIp: aws.String("0.0.0.0/0")}},
}},
})
if err != nil {
var aerr awserr.Error
if !errors.As(err, &aerr) || aerr.Code() != "InvalidPermission.Duplicate" {
t.Fatalf("authorize tcp/%d: %v", port, err)
}
}
}
}
// --- App instances -------------------------------------------------------
func launchAppInstances(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
for i := 0; i < 2; i++ {
out, err := c.EC2.RunInstances(&ec2.RunInstancesInput{
ImageId: aws.String(f.AMIID),
InstanceType: aws.String(f.InstanceType),
KeyName: aws.String(lbKeyName),
SubnetId: aws.String(f.SubnetID),
MinCount: aws.Int64(1),
MaxCount: aws.Int64(1),
UserData: aws.String(base64Encode(appUserData)),
})
require.NoErrorf(t, err, "run-instances app %d", i+1)
require.NotEmpty(t, out.Instances)
id := aws.StringValue(out.Instances[0].InstanceId)
f.AppInstanceIDs = append(f.AppInstanceIDs, id)
t.Logf("app instance %d: %s", i+1, id)
}
for _, id := range f.AppInstanceIDs {
harness.WaitForInstanceRunning(t, c, id, 120*time.Second)
}
}
func terminateInstances(t *testing.T, c *harness.AWSClient, ids []string) {
t.Helper()
if len(ids) == 0 {
return
}
awsIDs := make([]*string, len(ids))
for i, id := range ids {
awsIDs[i] = aws.String(id)
}
if _, err := c.EC2.TerminateInstances(&ec2.TerminateInstancesInput{InstanceIds: awsIDs}); err != nil {
t.Logf("terminate instances: %v", err)
return
}
harness.WaitForInstanceTerminated(t, c, ids, 60*time.Second)
}
// --- LB suite: one LB (ALB or NLB) × one scheme (internet-facing/internal)
// runLBSuite creates one TG + LB + listener, asserts scheme/DNS/ENI
// invariants, runs the traffic test (local + remote for internet-facing,
// client-VM for internal), then tears it all down before returning. Each
// suite is fully self-contained so the 4 subtests run sequentially without
// piling up LB system instances on capacity-constrained dev nodes.
func runLBSuite(t *testing.T, c *harness.AWSClient, f *sharedFixture, kind lbKind, scheme string, ssh *harness.PeerSSH, peer string) {
t.Helper()
suffix := "int"
if scheme == "internet-facing" {
suffix = "inet"
}
lbName := strings.ToLower(string(kind))
label := fmt.Sprintf("%s %s", kind, scheme)
var proto, hcPath, eniDescPrefix, lbType string
var port int64
if kind == kindALB {
proto, port, hcPath, eniDescPrefix, lbType = "HTTP", httpPort, "/index.html", "app", "application"
} else {
proto, port, hcPath, eniDescPrefix, lbType = "TCP", tcpPort, "", "net", "network"
}
tgArn := createTargetGroup(t, c, f, fmt.Sprintf("lb-e2e-%s-%s-tg", lbName, suffix), proto, port, hcPath)
t.Cleanup(func() { deleteTargetGroup(t, c, tgArn) })
registerTargets(t, c, tgArn, f.AppInstanceIDs)
t.Cleanup(func() { deregisterTargets(t, c, tgArn, f.AppInstanceIDs) })
lb := createLB(t, c, f, fmt.Sprintf("lb-e2e-%s-%s", lbName, suffix), lbType, scheme)
t.Cleanup(func() { deleteLB(t, c, lb) })
listener := createListener(t, c, lb.ARN, proto, port, tgArn)
t.Cleanup(func() { deleteListener(t, c, listener) })
assert.Equal(t, scheme, lb.Scheme, label+" scheme")
assert.Equal(t, lbType, lb.Type, label+" type")
if kind == kindNLB {
assert.Contains(t, lb.ARN, "/net/", label+" ARN must contain /net/")
}
harness.WaitForLBActive(t, c, lb.ARN, label, 5*time.Minute)
harness.WaitForTargetsHealthy(t, c, tgArn, 2, label, 2*time.Minute)
eni := lbENI(t, c, scheme, eniDescPrefix, lb.ID)
if scheme == "internet-facing" {
ip := publicIP(eni)
require.NotEmpty(t, ip, label+" needs public IP")
runInternetFacingTrafficSingle(t, kind, ssh, peer, ip)
if kind == kindNLB {
runNLBDeregisterDraining(t, c, tgArn, f.AppInstanceIDs[0])
}
return
}
// internal
assert.Empty(t, publicIP(eni), label+" must not have public IP")
priv := privateIP(eni)
require.NotEmpty(t, priv, label+" needs private IP")
assertInternalDNS(t, c, lb.ARN, label)
runInternalTrafficViaClient(t, c, f, kind, priv)
}
// --- LB CRUD helpers -----------------------------------------------------
func createTargetGroup(t *testing.T, c *harness.AWSClient, f *sharedFixture, name, proto string, port int64, hcPath string) string {
t.Helper()
in := &elbv2.CreateTargetGroupInput{
Name: aws.String(name),
Protocol: aws.String(proto),
Port: aws.Int64(port),
VpcId: aws.String(f.VPCID),
HealthCheckIntervalSeconds: aws.Int64(5),
HealthyThresholdCount: aws.Int64(2),
UnhealthyThresholdCount: aws.Int64(2),
}
if hcPath != "" {
in.HealthCheckPath = aws.String(hcPath)
} else {
in.HealthCheckProtocol = aws.String("TCP")
in.HealthCheckIntervalSeconds = aws.Int64(10)
}
out, err := c.ELBv2.CreateTargetGroup(in)
require.NoErrorf(t, err, "create-target-group %s", name)
arn := aws.StringValue(out.TargetGroups[0].TargetGroupArn)
t.Logf("TG %s: %s", name, arn)
return arn
}
func deleteTargetGroup(t *testing.T, c *harness.AWSClient, arn string) {
if arn == "" {
return
}
if _, err := c.ELBv2.DeleteTargetGroup(&elbv2.DeleteTargetGroupInput{TargetGroupArn: aws.String(arn)}); err != nil {
t.Logf("delete TG %s: %v", arn, err)
}
}
func registerTargets(t *testing.T, c *harness.AWSClient, tgArn string, instanceIDs []string) {
t.Helper()
targets := make([]*elbv2.TargetDescription, len(instanceIDs))
for i, id := range instanceIDs {
targets[i] = &elbv2.TargetDescription{Id: aws.String(id)}
}
_, err := c.ELBv2.RegisterTargets(&elbv2.RegisterTargetsInput{
TargetGroupArn: aws.String(tgArn),
Targets: targets,
})
require.NoError(t, err, "register-targets")
}
func deregisterTargets(t *testing.T, c *harness.AWSClient, tgArn string, instanceIDs []string) {
if tgArn == "" || len(instanceIDs) == 0 {
return
}
targets := make([]*elbv2.TargetDescription, len(instanceIDs))
for i, id := range instanceIDs {
targets[i] = &elbv2.TargetDescription{Id: aws.String(id)}
}
if _, err := c.ELBv2.DeregisterTargets(&elbv2.DeregisterTargetsInput{
TargetGroupArn: aws.String(tgArn),
Targets: targets,
}); err != nil {
t.Logf("deregister-targets: %v", err)
}
}
type lbInfo struct {
ARN, ID, Scheme, Type string
}
func createLB(t *testing.T, c *harness.AWSClient, f *sharedFixture, name, lbType, scheme string) lbInfo {
t.Helper()
in := &elbv2.CreateLoadBalancerInput{
Name: aws.String(name),
Subnets: []*string{aws.String(f.SubnetID)},
Scheme: aws.String(scheme),
}
if lbType == "network" {
in.Type = aws.String("network")
}
out, err := c.ELBv2.CreateLoadBalancer(in)
require.NoErrorf(t, err, "create-load-balancer %s", name)
require.NotEmpty(t, out.LoadBalancers)
lb := out.LoadBalancers[0]
arn := aws.StringValue(lb.LoadBalancerArn)
parts := strings.Split(arn, "/")
info := lbInfo{
ARN: arn,
ID: parts[len(parts)-1],
Scheme: aws.StringValue(lb.Scheme),
Type: aws.StringValue(lb.Type),
}
t.Logf("LB %s: %s (scheme=%s type=%s)", name, info.ARN, info.Scheme, info.Type)
return info
}
func deleteLB(t *testing.T, c *harness.AWSClient, lb lbInfo) {
if lb.ARN == "" {
return
}
prefix, lbName := "app", "alb"
if lb.Type == "network" {
prefix, lbName = "net", "nlb"
}
suffix := "int"
if lb.Scheme == "internet-facing" {
suffix = "inet"
}
filter := fmt.Sprintf("ELB %s/lb-e2e-%s-%s/%s", prefix, lbName, suffix, lb.ID)
// Capture the underlying sys.micro VM id before deleting so we can wait
// for it to actually terminate. ELBv2.DeleteLoadBalancer returns once
// the LB resource is gone, but the system VM termination is async and
// holds the vCPU/memory allocation until reaped — without this wait,
// the next suite's createLB can race the capacity reclaim and trip the
// reserve, ending up in terminal state=failed.
var sysInstanceID string
if eniOut, err := c.EC2.DescribeNetworkInterfaces(&ec2.DescribeNetworkInterfacesInput{
Filters: []*ec2.Filter{{
Name: aws.String("description"),
Values: []*string{aws.String(filter)},
}},
}); err == nil && len(eniOut.NetworkInterfaces) > 0 && eniOut.NetworkInterfaces[0].Attachment != nil {
sysInstanceID = aws.StringValue(eniOut.NetworkInterfaces[0].Attachment.InstanceId)
}
if _, err := c.ELBv2.DeleteLoadBalancer(&elbv2.DeleteLoadBalancerInput{
LoadBalancerArn: aws.String(lb.ARN),
}); err != nil {
t.Logf("delete LB %s: %v", lb.ARN, err)
return
}
// Block until describe reports LoadBalancerNotFound — the daemon doesn't
// mark the LB gone until the underlying sys.micro VM has been torn down
// and its vCPU/memory deallocated. Polling this avoids the capacity race
// where the next LB createLB fires before deallocation completes (sys
// instances are filtered from DescribeInstances so WaitForInstanceTerminated
// is a no-op for them).
waitForLBGone(t, c, lb.ARN, 60*time.Second)
harness.WaitForENICleanup(t, c, filter, lb.ARN, 30*time.Second)
if sysInstanceID != "" {
harness.WaitForInstanceTerminated(t, c, []string{sysInstanceID}, 60*time.Second)
}
}
// waitForLBGone polls DescribeLoadBalancers until the daemon reports
// LoadBalancerNotFound (or the LB no longer appears in the result), which
// in spinifex corresponds to the underlying system VM having finished
// terminating and released its capacity.
func waitForLBGone(t *testing.T, c *harness.AWSClient, arn string, timeout time.Duration) {
t.Helper()
deadline := time.Now().Add(timeout)
for {
out, err := c.ELBv2.DescribeLoadBalancers(&elbv2.DescribeLoadBalancersInput{
LoadBalancerArns: []*string{aws.String(arn)},
})
if err != nil {
var aerr awserr.Error
if errors.As(err, &aerr) && aerr.Code() == "LoadBalancerNotFound" {
return
}
}
if err == nil && len(out.LoadBalancers) == 0 {
return
}
if time.Now().After(deadline) {
t.Logf("waitForLBGone: %s still visible after %s (continuing)", arn, timeout)
return
}
time.Sleep(2 * time.Second)
}
}
func createListener(t *testing.T, c *harness.AWSClient, lbArn, proto string, port int64, tgArn string) string {
t.Helper()
out, err := c.ELBv2.CreateListener(&elbv2.CreateListenerInput{
LoadBalancerArn: aws.String(lbArn),
Protocol: aws.String(proto),
Port: aws.Int64(port),
DefaultActions: []*elbv2.Action{{
Type: aws.String("forward"),
TargetGroupArn: aws.String(tgArn),
}},
})
require.NoError(t, err, "create-listener")
arn := aws.StringValue(out.Listeners[0].ListenerArn)
t.Logf("listener %s:%d -> %s", proto, port, arn)
return arn
}
func deleteListener(t *testing.T, c *harness.AWSClient, arn string) {
if arn == "" {
return
}
if _, err := c.ELBv2.DeleteListener(&elbv2.DeleteListenerInput{ListenerArn: aws.String(arn)}); err != nil {
t.Logf("delete listener: %v", err)
}
}
func lbENI(t *testing.T, c *harness.AWSClient, scheme, prefix, lbID string) *ec2.NetworkInterface {
t.Helper()
suffix := "int"
if scheme == "internet-facing" {
suffix = "inet"
}
lbName := "alb"
if prefix == "net" {
lbName = "nlb"
}
desc := fmt.Sprintf("ELB %s/lb-e2e-%s-%s/%s", prefix, lbName, suffix, lbID)
var eni *ec2.NetworkInterface
harness.EventuallyErr(t, func() error {
out, err := c.EC2.DescribeNetworkInterfaces(&ec2.DescribeNetworkInterfacesInput{
Filters: []*ec2.Filter{{
Name: aws.String("description"),
Values: []*string{aws.String(desc)},
}},
})
if err != nil {
return err
}
if len(out.NetworkInterfaces) == 0 {
return fmt.Errorf("no ENI for %s", desc)
}
eni = out.NetworkInterfaces[0]
return nil
}, 30*time.Second, 2*time.Second)
return eni
}
func publicIP(eni *ec2.NetworkInterface) string {
if eni == nil || eni.Association == nil {
return ""
}
return aws.StringValue(eni.Association.PublicIp)
}
func privateIP(eni *ec2.NetworkInterface) string {
if eni == nil {
return ""
}
return aws.StringValue(eni.PrivateIpAddress)
}
func assertInternalDNS(t *testing.T, c *harness.AWSClient, lbArn, label string) {
t.Helper()
out, err := c.ELBv2.DescribeLoadBalancers(&elbv2.DescribeLoadBalancersInput{
LoadBalancerArns: []*string{aws.String(lbArn)},
})
require.NoError(t, err)
require.NotEmpty(t, out.LoadBalancers)
dns := aws.StringValue(out.LoadBalancers[0].DNSName)
assert.True(t, strings.HasPrefix(dns, "internal-"), "%s internal DNS missing internal- prefix: %s", label, dns)
}
// --- Internet-facing traffic ---------------------------------------------
// runInternetFacingTrafficSingle drives one LB (ALB or NLB) over its public
// IP. Runs probes locally from the test driver, and if a peer node is wired
// up, also runs the same probes from there to exercise inter-node routing.
func runInternetFacingTrafficSingle(t *testing.T, kind lbKind, ssh *harness.PeerSSH, peer, ip string) {
t.Helper()
if kind == kindALB {
url := fmt.Sprintf("http://%s:%d", ip, httpPort)
harness.AssertRoundRobin(t,
harness.HTTPRoundRobin(url, probesPerRun, 5*time.Second),
2, probesPerRun/2, "ALB inet (local)")
if ssh != nil && peer != "" {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
harness.AssertRoundRobin(t,
remoteHTTPRoundRobin(t, ctx, ssh, peer, url, probesPerRun),
2, probesPerRun/2, "ALB inet (remote)")
}
return
}
harness.AssertRoundRobin(t,
harness.TCPRoundRobin(ip, tcpPort, probesPerRun, 5*time.Second),
1, probesPerRun/2, "NLB inet (local)")
if ssh != nil && peer != "" {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
harness.AssertRoundRobin(t,
remoteTCPRoundRobin(t, ctx, ssh, peer, ip, tcpPort, probesPerRun),
1, probesPerRun/2, "NLB inet (remote)")
}
}
func remoteHTTPRoundRobin(t *testing.T, ctx context.Context, ssh *harness.PeerSSH, peer, url string, n int) harness.TrafficResult {
t.Helper()
var lines []string
for i := 0; i < n; i++ {
out, err := ssh.Run(ctx, peer, fmt.Sprintf("curl -s --max-time 5 '%s/'", url))
if err != nil {
continue
}
lines = append(lines, strings.TrimSpace(string(out)))
}
return harness.VerifyResultsLines(strings.Join(lines, "\n"), "http")
}
func remoteTCPRoundRobin(t *testing.T, ctx context.Context, ssh *harness.PeerSSH, peer, host string, port, n int) harness.TrafficResult {
t.Helper()
var lines []string
for i := 0; i < n; i++ {
out, err := ssh.Run(ctx, peer, fmt.Sprintf("echo '' | nc -w5 '%s' %d", host, port))
if err != nil {
continue
}
lines = append(lines, strings.TrimSpace(string(out)))
}
return harness.VerifyResultsLines(strings.Join(lines, "\n"), "tcp")
}
func runNLBDeregisterDraining(t *testing.T, c *harness.AWSClient, tgArn, targetID string) {
t.Helper()
_, err := c.ELBv2.DeregisterTargets(&elbv2.DeregisterTargetsInput{
TargetGroupArn: aws.String(tgArn),
Targets: []*elbv2.TargetDescription{{Id: aws.String(targetID)}},
})
require.NoError(t, err)
time.Sleep(3 * time.Second)
out, err := c.ELBv2.DescribeTargetHealth(&elbv2.DescribeTargetHealthInput{TargetGroupArn: aws.String(tgArn)})
require.NoError(t, err)
remaining := len(out.TargetHealthDescriptions)
draining := 0
for _, th := range out.TargetHealthDescriptions {
if aws.StringValue(th.TargetHealth.State) == "draining" {
draining++
}
}
t.Logf("NLB deregister: %d remaining, %d draining", remaining, draining)
assert.True(t, remaining == 1 || draining >= 1, "NLB deregister: expected 1 remaining or >=1 draining")
}
// --- Shared probe client + per-suite trigger ----------------------------
// launchSharedProbeClient launches one client VM whose user-data exposes
// http.server on :80 (results dir) and a JSON trigger endpoint on :9090.
// Both internal suites hit the same client — avoids the ~60s second cold
// boot of a per-suite client.
func launchSharedProbeClient(t *testing.T, c *harness.AWSClient, f *sharedFixture) {
t.Helper()
out, err := c.EC2.RunInstances(&ec2.RunInstancesInput{
ImageId: aws.String(f.AMIID),
InstanceType: aws.String(f.InstanceType),
KeyName: aws.String(lbKeyName),
SubnetId: aws.String(f.SubnetID),
MinCount: aws.Int64(1),
MaxCount: aws.Int64(1),
UserData: aws.String(base64Encode(clientUserData)),
})
require.NoError(t, err, "run-instances probe client")
f.ClientID = aws.StringValue(out.Instances[0].InstanceId)
t.Logf("probe client: %s", f.ClientID)
harness.WaitForInstanceRunning(t, c, f.ClientID, 120*time.Second)
eni := harness.InstanceENI(t, c, f.ClientID)
f.ClientPublicIP = publicIP(eni)
require.NotEmpty(t, f.ClientPublicIP, "probe client needs public IP")
t.Logf("probe client public IP: %s", f.ClientPublicIP)
// Wait until the trigger server is accepting connections before the
// first suite starts firing probes at it.
triggerURL := fmt.Sprintf("http://%s:%d/", f.ClientPublicIP, triggerPort)
harness.Eventually(t, func() bool {
req, _ := http.NewRequest(http.MethodGet, triggerURL, nil)
client := &http.Client{Timeout: 3 * time.Second}
resp, err := client.Do(req)
if err != nil {
return false
}
resp.Body.Close()
return true
}, 5*time.Minute, 5*time.Second, "probe client trigger server not ready")
}
// runInternalTrafficViaClient POSTs a probe order to the shared client's
// trigger server, then fetches the results file it wrote and parses it.
func runInternalTrafficViaClient(t *testing.T, _ *harness.AWSClient, f *sharedFixture, kind lbKind, lbIP string) {
t.Helper()
var proto, resultsFile string
if kind == kindALB {
proto, resultsFile = "http", fmt.Sprintf("alb-%d.txt", time.Now().UnixNano())
} else {
proto, resultsFile = "tcp", fmt.Sprintf("nlb-%d.txt", time.Now().UnixNano())
}
order := map[string]any{
"proto": proto,
"ip": lbIP,
"count": probesPerRun,
"outfile": resultsFile,
"http_port": httpPort,
"tcp_port": tcpPort,
}
body, err := json.Marshal(order)
require.NoError(t, err)
triggerURL := fmt.Sprintf("http://%s:%d/", f.ClientPublicIP, triggerPort)
client := &http.Client{Timeout: 90 * time.Second}
resp, err := client.Post(triggerURL, "application/json", bytes.NewReader(body))
require.NoErrorf(t, err, "trigger %s probe", kind)
resp.Body.Close()
require.Equalf(t, 200, resp.StatusCode, "trigger %s probe HTTP status", kind)
results, err := plainHTTPGet(
fmt.Sprintf("http://%s:%d/%s", f.ClientPublicIP, httpPort, resultsFile),
10*time.Second)
require.NoErrorf(t, err, "fetch %s", resultsFile)
harness.AssertRoundRobin(t,
harness.VerifyResultsLines(results, proto),
1, probesPerRun/2, string(kind)+" internal")
}
// plainHTTPGet fetches a plain-HTTP URL (no TLS). The probe client serves
// over port 80 with no cert, so the harness HTTPSGet helper would refuse.
func plainHTTPGet(url string, timeout time.Duration) (string, error) {
client := &http.Client{Timeout: timeout}
resp, err := client.Get(url)
if err != nil {
return "", err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return "", fmt.Errorf("GET %s: status %d", url, resp.StatusCode)
}
buf := new(bytes.Buffer)
if _, err := buf.ReadFrom(resp.Body); err != nil {
return "", err
}
return buf.String(), nil
}
func dumpDaemonLogs(t *testing.T, dir, label string) {
t.Helper()
harness.DumpCmd(t, dir, fmt.Sprintf("daemon-%s.log", label),
"journalctl", "-u", "spinifex-daemon", "--no-pager", "-n", "200")
}
func base64Encode(s string) string {
return base64.StdEncoding.EncodeToString([]byte(s))
}