134 lines
2.7 KiB
Go
134 lines
2.7 KiB
Go
package perf
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"os"
|
|
"path/filepath"
|
|
"time"
|
|
|
|
"github.com/derailed/k9s/internal/client"
|
|
"github.com/derailed/k9s/internal/config"
|
|
"github.com/rakyll/hey/requester"
|
|
"github.com/rs/zerolog/log"
|
|
)
|
|
|
|
const (
|
|
benchFmat = "%s_%s_%d.txt"
|
|
k9sUA = "k9s/"
|
|
)
|
|
|
|
// K9sBenchDir directory to store K9s Benchmark files.
|
|
var K9sBenchDir = filepath.Join(os.TempDir(), fmt.Sprintf("k9s-bench-%s", config.MustK9sUser()))
|
|
|
|
// Benchmark puts a workload under load.
|
|
type Benchmark struct {
|
|
canceled bool
|
|
config config.BenchConfig
|
|
worker *requester.Work
|
|
}
|
|
|
|
// NewBenchmark returns a new benchmark.
|
|
func NewBenchmark(base, version string, cfg config.BenchConfig) (*Benchmark, error) {
|
|
b := Benchmark{config: cfg}
|
|
if err := b.init(base, version); err != nil {
|
|
return nil, err
|
|
}
|
|
return &b, nil
|
|
}
|
|
|
|
func (b *Benchmark) init(base, version string) error {
|
|
req, err := http.NewRequest(b.config.HTTP.Method, base, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
log.Debug().Msgf("Benchmarking Request %s", req.URL.String())
|
|
|
|
if b.config.Auth.User != "" || b.config.Auth.Password != "" {
|
|
req.SetBasicAuth(b.config.Auth.User, b.config.Auth.Password)
|
|
}
|
|
|
|
req.Header = b.config.HTTP.Headers
|
|
ua := req.UserAgent()
|
|
if ua == "" {
|
|
ua = k9sUA
|
|
} else {
|
|
ua += " " + k9sUA
|
|
}
|
|
ua += version
|
|
if req.Header == nil {
|
|
req.Header = make(http.Header)
|
|
}
|
|
req.Header.Set("User-Agent", ua)
|
|
|
|
b.worker = &requester.Work{
|
|
Request: req,
|
|
RequestBody: []byte(b.config.HTTP.Body),
|
|
N: b.config.N,
|
|
C: b.config.C,
|
|
H2: b.config.HTTP.HTTP2,
|
|
Output: "",
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Cancel kills the benchmark in progress.
|
|
func (b *Benchmark) Cancel() {
|
|
if b == nil {
|
|
return
|
|
}
|
|
b.canceled = true
|
|
b.worker.Stop()
|
|
}
|
|
|
|
// Canceled checks if the benchmark was canceled.
|
|
func (b *Benchmark) Canceled() bool {
|
|
return b.canceled
|
|
}
|
|
|
|
// Run starts a benchmark,
|
|
func (b *Benchmark) Run(cluster string, done func()) {
|
|
buff := new(bytes.Buffer)
|
|
b.worker.Writer = buff
|
|
b.worker.Run()
|
|
if !b.canceled {
|
|
if err := b.save(cluster, buff); err != nil {
|
|
log.Error().Err(err).Msg("Saving Benchmark")
|
|
}
|
|
}
|
|
done()
|
|
}
|
|
|
|
func (b *Benchmark) save(cluster string, r io.Reader) error {
|
|
dir := filepath.Join(K9sBenchDir, cluster)
|
|
if err := os.MkdirAll(dir, 0744); err != nil {
|
|
return err
|
|
}
|
|
|
|
ns, n := client.Namespaced(b.config.Name)
|
|
file := filepath.Join(dir, fmt.Sprintf(benchFmat, ns, n, time.Now().UnixNano()))
|
|
f, err := os.Create(file)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
if e := f.Close(); e != nil {
|
|
log.Fatal().Err(e).Msg("Bench save")
|
|
}
|
|
}()
|
|
|
|
bb, err := ioutil.ReadAll(r)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if _, err := f.Write(bb); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|