60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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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 lmctfy
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import (
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"errors"
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"log"
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"os/exec"
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"github.com/google/cadvisor/container"
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)
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func Register() error {
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if _, err := exec.LookPath("lmctfy"); err != nil {
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return errors.New("cannot find lmctfy")
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}
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log.Printf("Registering lmctfy factory")
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container.RegisterContainerHandlerFactory(&lmctfyFactory{})
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return nil
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}
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type lmctfyFactory struct {
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}
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func (self *lmctfyFactory) String() string {
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return "lmctfy"
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}
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func (self *lmctfyFactory) NewContainerHandler(name string) (container.ContainerHandler, error) {
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c, err := New(name)
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if err != nil {
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return nil, err
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}
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// XXX(dengnan): /user is created by ubuntu 14.04. Not sure if we should list it
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handler := container.NewBlackListFilter(c, "/user")
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return handler, nil
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}
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func (self *lmctfyFactory) CanHandle(name string) bool {
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cmd := exec.Command(lmctfyBinary, "stats", "summary", name)
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_, err := cmd.Output()
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if err != nil {
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return false
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}
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return true
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}
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