cadvisor/container/raw/factory.go
Victor Marmol 91c974e913 Generate CgroupPaths when not available.
This happens always for non-Docker containers and sometimes with older Docker
containers.
2014-12-15 16:57:30 -08:00

64 lines
1.9 KiB
Go

// Copyright 2014 Google Inc. All Rights Reserved.
//
// 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 raw
import (
"fmt"
"github.com/golang/glog"
"github.com/google/cadvisor/container"
"github.com/google/cadvisor/container/libcontainer"
"github.com/google/cadvisor/info"
)
type rawFactory struct {
// Factory for machine information.
machineInfoFactory info.MachineInfoFactory
// Information about the cgroup subsystems.
cgroupSubsystems *libcontainer.CgroupSubsystems
}
func (self *rawFactory) String() string {
return "raw"
}
func (self *rawFactory) NewContainerHandler(name string) (container.ContainerHandler, error) {
return newRawContainerHandler(name, self.cgroupSubsystems, self.machineInfoFactory)
}
// The raw factory can handle any container.
func (self *rawFactory) CanHandle(name string) (bool, error) {
return true, nil
}
func Register(machineInfoFactory info.MachineInfoFactory) error {
cgroupSubsystems, err := libcontainer.GetCgroupSubsystems()
if err != nil {
return fmt.Errorf("failed to get cgroup subsystems: %v", err)
}
if len(cgroupSubsystems.Mounts) == 0 {
return fmt.Errorf("failed to find supported cgroup mounts for the raw factory")
}
glog.Infof("Registering Raw factory")
factory := &rawFactory{
machineInfoFactory: machineInfoFactory,
cgroupSubsystems: &cgroupSubsystems,
}
container.RegisterContainerHandlerFactory(factory)
return nil
}