72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/docker/docker/api/types"
|
|
"github.com/go-check/check"
|
|
)
|
|
|
|
func (s *DockerSuite) TestCliStatsNoStreamGetCpu(c *check.C) {
|
|
out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "while true;do echo 'Hello'; usleep 100000; done")
|
|
|
|
id := strings.TrimSpace(out)
|
|
err := waitRun(id)
|
|
c.Assert(err, check.IsNil)
|
|
|
|
resp, body, err := sockRequestRaw("GET", fmt.Sprintf("/containers/%s/stats?stream=false", id), nil, "")
|
|
c.Assert(err, check.IsNil)
|
|
c.Assert(resp.ContentLength > 0, check.Equals, true, check.Commentf("should not use chunked encoding"))
|
|
c.Assert(resp.Header.Get("Content-Type"), check.Equals, "application/json")
|
|
|
|
var v *types.Stats
|
|
err = json.NewDecoder(body).Decode(&v)
|
|
c.Assert(err, check.IsNil)
|
|
|
|
var cpuPercent = 0.0
|
|
cpuDelta := float64(v.CpuStats.CpuUsage.TotalUsage - v.PreCpuStats.CpuUsage.TotalUsage)
|
|
systemDelta := float64(v.CpuStats.SystemUsage - v.PreCpuStats.SystemUsage)
|
|
cpuPercent = (cpuDelta / systemDelta) * float64(len(v.CpuStats.CpuUsage.PercpuUsage)) * 100.0
|
|
if cpuPercent == 0 {
|
|
c.Fatalf("docker stats with no-stream get cpu usage failed: was %v", cpuPercent)
|
|
}
|
|
}
|
|
|
|
func (s *DockerSuite) TestStoppedContainerStatsGoroutines(c *check.C) {
|
|
out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "echo 1")
|
|
id := strings.TrimSpace(out)
|
|
|
|
getGoRoutines := func() int {
|
|
_, body, err := sockRequestRaw("GET", fmt.Sprintf("/info"), nil, "")
|
|
c.Assert(err, check.IsNil)
|
|
info := types.Info{}
|
|
err = json.NewDecoder(body).Decode(&info)
|
|
c.Assert(err, check.IsNil)
|
|
body.Close()
|
|
return info.NGoroutines
|
|
}
|
|
|
|
// When the HTTP connection is closed, the number of goroutines should not increase.
|
|
routines := getGoRoutines()
|
|
_, body, err := sockRequestRaw("GET", fmt.Sprintf("/containers/%s/stats", id), nil, "")
|
|
c.Assert(err, check.IsNil)
|
|
body.Close()
|
|
|
|
t := time.After(30 * time.Second)
|
|
for {
|
|
select {
|
|
case <-t:
|
|
c.Assert(getGoRoutines() <= routines, check.Equals, true)
|
|
return
|
|
default:
|
|
if n := getGoRoutines(); n <= routines {
|
|
return
|
|
}
|
|
time.Sleep(200 * time.Millisecond)
|
|
}
|
|
}
|
|
}
|