forked from ccfos/huatuo
107 lines
2.9 KiB
Go
107 lines
2.9 KiB
Go
// Copyright 2025 The HuaTuo Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package collector
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import (
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"fmt"
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"huatuo-bamai/internal/log"
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"huatuo-bamai/internal/pod"
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"huatuo-bamai/internal/utils/cgrouputil"
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"huatuo-bamai/pkg/metric"
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"huatuo-bamai/pkg/tracing"
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"github.com/google/cadvisor/utils/cpuload/netlink"
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"github.com/prometheus/procfs"
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)
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type loadavgCollector struct {
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loadAvg []*metric.Data
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}
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func init() {
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tracing.RegisterEventTracing("loadavg", newLoadavg)
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}
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// NewLoadavgCollector returns a new Collector exposing load average stats.
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func newLoadavg() (*tracing.EventTracingAttr, error) {
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collector := &loadavgCollector{
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// Load average of last 1, 5 & 15 minutes.
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// See linux kernel Documentation/filesystems/proc.rst
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loadAvg: []*metric.Data{
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metric.NewGaugeData("load1", 0, "1m load average", nil),
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metric.NewGaugeData("load5", 0, "5m load average", nil),
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metric.NewGaugeData("load15", 0, "15m load average", nil),
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},
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}
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return &tracing.EventTracingAttr{
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TracingData: collector, Flag: tracing.FlagMetric,
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}, nil
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}
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// Read loadavg from /proc.
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func (c *loadavgCollector) hostLoadAvg() error {
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fs, err := procfs.NewDefaultFS()
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if err != nil {
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return err
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}
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load, err := fs.LoadAvg()
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if err != nil {
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return err
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}
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c.loadAvg[0].Value = load.Load1
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c.loadAvg[1].Value = load.Load5
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c.loadAvg[2].Value = load.Load15
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return nil
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}
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func (c *loadavgCollector) Update() ([]*metric.Data, error) {
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loadAvgMetrics := []*metric.Data{}
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n, err := netlink.New()
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if err != nil {
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log.Infof("Failed to create netlink: %s", err)
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return nil, err
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}
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defer n.Stop()
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containers, err := pod.GetContainersByType(pod.ContainerTypeNormal | pod.ContainerTypeSidecar)
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if err != nil {
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return nil, fmt.Errorf("GetContainersByType: %w", err)
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}
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for _, container := range containers {
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stats, err := n.GetCpuLoad(container.Hostname, cgrouputil.NewCPU().Path(container.CgroupSuffix))
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if err != nil {
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log.Debugf("failed to get %s load, %v", container, err)
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continue
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}
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loadAvgMetrics = append(loadAvgMetrics,
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metric.NewContainerGaugeData(container, "container_nr_running", float64(stats.NrRunning), "nr_running of container", nil),
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metric.NewContainerGaugeData(container, "container_nr_uninterruptible", float64(stats.NrUninterruptible), "nr_uninterruptible of container", nil))
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}
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if err := c.hostLoadAvg(); err != nil {
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return nil, err
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}
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loadAvgMetrics = append(loadAvgMetrics, c.loadAvg...)
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return loadAvgMetrics, nil
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}
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