1239f54035
This makes it easier to extend the collectors to be used by external code and task managers Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
// +build linux
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/*
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Copyright The containerd 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 v2
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import (
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"context"
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"github.com/containerd/containerd/errdefs"
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"github.com/containerd/containerd/events"
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"github.com/containerd/containerd/runtime"
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"github.com/containerd/containerd/runtime/v1/linux"
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metrics "github.com/docker/go-metrics"
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)
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// NewTaskMonitor returns a new cgroups monitor
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func NewTaskMonitor(ctx context.Context, publisher events.Publisher, ns *metrics.Namespace) (runtime.TaskMonitor, error) {
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collector := NewCollector(ns)
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return &cgroupsMonitor{
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collector: collector,
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context: ctx,
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publisher: publisher,
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}, nil
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}
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type cgroupsMonitor struct {
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collector *Collector
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context context.Context
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publisher events.Publisher
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}
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func (m *cgroupsMonitor) Monitor(c runtime.Task) error {
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if err := m.collector.Add(c); err != nil {
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return err
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}
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t, ok := c.(*linux.Task)
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if !ok {
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return nil
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}
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cg, err := t.Cgroup()
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if err != nil {
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if errdefs.IsNotFound(err) {
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return nil
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}
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return err
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}
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// OOM handler is not implemented yet
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_ = cg
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return nil
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}
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func (m *cgroupsMonitor) Stop(c runtime.Task) error {
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m.collector.Remove(c)
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return nil
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}
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