mirror of https://github.com/k3s-io/k3s
49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
// +build linux
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package stats
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import (
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"io/ioutil"
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"strconv"
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"syscall"
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"time"
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"k8s.io/apimachinery/pkg/apis/meta/v1"
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statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
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)
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func (p *StatsProvider) RlimitStats() (*statsapi.RlimitStats, error) {
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rlimit := &statsapi.RlimitStats{}
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if content, err := ioutil.ReadFile("/proc/sys/kernel/pid_max"); err == nil {
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if maxPid, err := strconv.ParseInt(string(content[:len(content)-1]), 10, 64); err == nil {
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rlimit.MaxPID = &maxPid
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}
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}
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var info syscall.Sysinfo_t
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syscall.Sysinfo(&info)
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procs := int64(info.Procs)
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rlimit.NumOfRunningProcesses = &procs
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rlimit.Time = v1.NewTime(time.Now())
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return rlimit, nil
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}
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