| // +build linux |
| |
| /* |
| Copyright 2017 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package stats |
| |
| import ( |
| "io/ioutil" |
| "strconv" |
| "syscall" |
| "time" |
| |
| "k8s.io/apimachinery/pkg/apis/meta/v1" |
| statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1" |
| ) |
| |
| func (p *StatsProvider) RlimitStats() (*statsapi.RlimitStats, error) { |
| rlimit := &statsapi.RlimitStats{} |
| |
| if content, err := ioutil.ReadFile("/proc/sys/kernel/pid_max"); err == nil { |
| if maxPid, err := strconv.ParseInt(string(content[:len(content)-1]), 10, 64); err == nil { |
| rlimit.MaxPID = &maxPid |
| } |
| } |
| |
| var info syscall.Sysinfo_t |
| syscall.Sysinfo(&info) |
| procs := int64(info.Procs) |
| rlimit.NumOfRunningProcesses = &procs |
| |
| rlimit.Time = v1.NewTime(time.Now()) |
| |
| return rlimit, nil |
| } |