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package taskexecutor
import (
"encoding/json"
"fmt"
"time"
"github.com/shirou/gopsutil/cpu"
"github.com/shirou/gopsutil/disk"
"github.com/shirou/gopsutil/v3/mem"
"github.com/kubeedge/kubeedge/common/types"
api "github.com/kubeedge/kubeedge/pkg/apis/fsm/v1alpha1"
"github.com/kubeedge/kubeedge/pkg/util/fsm"
)
const (
MaxCPUUsage float64 = 80
MaxMemUsage float64 = 80
MaxDiskUsage float64 = 80
)
func preCheck(taskReq types.NodeTaskRequest) fsm.Event {
event := fsm.Event{
Type: "Check",
Action: api.ActionSuccess,
ErrorMsg: "",
}
data, err := json.Marshal(taskReq.Item)
if err != nil {
event.Action = api.ActionFailure
event.ErrorMsg = err.Error()
return event
}
var checkItems types.NodePreCheckRequest
err = json.Unmarshal(data, &checkItems)
if err != nil {
event.Action = api.ActionFailure
event.ErrorMsg = err.Error()
return event
}
var failed bool
var checkResult = map[string]string{}
var checkFunc = map[string]func() error{
"cpu": checkCPU,
"mem": checkMem,
"disk": checkDisk,
}
for _, item := range checkItems.CheckItem {
f, ok := checkFunc[item]
if !ok {
checkResult[item] = "check item not support"
continue
}
err = f()
if err != nil {
failed = true
checkResult[item] = err.Error()
continue
}
checkResult[item] = "ok"
}
if !failed {
return event
}
event.Action = api.ActionFailure
result, err := json.Marshal(checkResult)
if err != nil {
event.ErrorMsg = err.Error()
return event
}
event.ErrorMsg = string(result)
return event
}
func checkCPU() error {
cpuUsage, err := cpu.Percent(100*time.Millisecond, false)
if err != nil {
return err
}
var usage float64
for _, percpu := range cpuUsage {
usage += percpu / float64(len(cpuUsage))
}
if usage > MaxCPUUsage {
return fmt.Errorf("current cpu usage is %f, which exceeds the maximum allowed usage %f", usage, MaxCPUUsage)
}
return nil
}
func checkMem() error {
memInfo, err := mem.VirtualMemory()
if err != nil {
return err
}
memUsedPercent := memInfo.UsedPercent
if memUsedPercent > MaxMemUsage {
return fmt.Errorf("current mem usage is %f, which exceeds the maximum allowed usage %f", memUsedPercent, MaxMemUsage)
}
return nil
}
func checkDisk() error {
partitions, err := disk.Partitions(true)
if err != nil {
return err
}
var failed bool
var diskUsages = map[string]string{}
for _, part := range partitions {
usage, err := disk.Usage(part.Mountpoint)
if err != nil {
failed = true
diskUsages[part.Device] = err.Error()
continue
}
if usage.UsedPercent > MaxDiskUsage {
failed = true
diskUsages[part.Device] = fmt.Sprintf("current disk usage is %f, which exceeds the maximum allowed usage %f", usage.UsedPercent, MaxMemUsage)
continue
}
diskUsages[part.Device] = fmt.Sprintf("%f", usage.UsedPercent)
}
if !failed {
return nil
}
result, err := json.Marshal(diskUsages)
if err != nil {
return err
}
return fmt.Errorf(string(result))
}
func normalInit(types.NodeTaskRequest) fsm.Event {
return fsm.Event{
Type: "Init",
Action: api.ActionSuccess,
ErrorMsg: "",
}
}
|
