Files
nebula/pki_hup_benchmark_test.go
2025-12-11 19:51:40 +00:00

121 lines
2.5 KiB
Go

package nebula
import (
"bytes"
"fmt"
"net/netip"
"os"
"path/filepath"
"runtime"
"testing"
"time"
"github.com/slackhq/nebula/cert"
cert_test "github.com/slackhq/nebula/cert_test"
"github.com/slackhq/nebula/config"
"github.com/slackhq/nebula/test"
"github.com/stretchr/testify/require"
)
func BenchmarkReloadConfigWithCAs(b *testing.B) {
prevProcs := runtime.GOMAXPROCS(1)
b.Cleanup(func() { runtime.GOMAXPROCS(prevProcs) })
for _, size := range []int{100, 250, 500, 1000, 5000} {
b.Run(fmt.Sprintf("%dCAs", size), func(b *testing.B) {
l := test.NewLogger()
dir := b.TempDir()
ca, caKey, caBundle := buildCABundle(b, size)
caPath, certPath, keyPath := writePKIFiles(b, dir, ca, caKey, caBundle)
configBody := fmt.Sprintf(`pki:
ca: %s
cert: %s
key: %s
`, caPath, certPath, keyPath)
configPath := filepath.Join(dir, "config.yml")
require.NoError(b, os.WriteFile(configPath, []byte(configBody), 0o600))
c := config.NewC(l)
require.NoError(b, c.Load(dir))
_, err := NewPKIFromConfig(l, c)
require.NoError(b, err)
b.ReportAllocs()
b.ResetTimer()
for b.Loop() {
c.ReloadConfig()
}
})
}
}
func buildCABundle(b *testing.B, count int) (cert.Certificate, []byte, []byte) {
b.Helper()
require.GreaterOrEqual(b, count, 1)
before := time.Now().Add(-24 * time.Hour)
after := time.Now().Add(24 * time.Hour)
ca, _, caKey, pem := cert_test.NewTestCaCert(
cert.Version2,
cert.Curve_CURVE25519,
before,
after,
nil,
nil,
nil,
)
buf := bytes.NewBuffer(pem)
for i := 1; i < count; i++ {
_, _, _, extraPEM := cert_test.NewTestCaCert(
cert.Version2,
cert.Curve_CURVE25519,
time.Now(),
time.Now().Add(time.Hour),
nil,
nil,
nil,
)
buf.Write(extraPEM)
}
return ca, caKey, buf.Bytes()
}
func writePKIFiles(b *testing.B, dir string, ca cert.Certificate, caKey []byte, caBundle []byte) (string, string, string) {
b.Helper()
networks := []netip.Prefix{netip.MustParsePrefix("10.0.0.1/24")}
_, _, keyPEM, certPEM := cert_test.NewTestCert(
cert.Version2,
cert.Curve_CURVE25519,
ca,
caKey,
"reload-benchmark",
time.Now(),
time.Now().Add(time.Hour),
networks,
nil,
nil,
)
caPath := filepath.Join(dir, "ca.pem")
certPath := filepath.Join(dir, "cert.pem")
keyPath := filepath.Join(dir, "key.pem")
require.NoError(b, os.WriteFile(caPath, caBundle, 0o600))
require.NoError(b, os.WriteFile(certPath, certPEM, 0o600))
require.NoError(b, os.WriteFile(keyPath, keyPEM, 0o600))
return caPath, certPath, keyPath
}