kubernetes/vendor/github.com/google/cadvisor/utils/cloudinfo/gce.go

58 lines
1.6 KiB
Go

// Copyright 2015 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 cloudinfo
import (
"io/ioutil"
"strings"
info "github.com/google/cadvisor/info/v1"
"cloud.google.com/go/compute/metadata"
"github.com/golang/glog"
)
const (
gceProductName = "/sys/class/dmi/id/product_name"
google = "Google"
)
func onGCE() bool {
data, err := ioutil.ReadFile(gceProductName)
if err != nil {
glog.V(2).Infof("Error while reading product_name: %v", err)
return false
}
return strings.Contains(string(data), google)
}
func getGceInstanceType() info.InstanceType {
machineType, err := metadata.Get("instance/machine-type")
if err != nil {
return info.UnknownInstance
}
responseParts := strings.Split(machineType, "/") // Extract the instance name from the machine type.
return info.InstanceType(responseParts[len(responseParts)-1])
}
func getGceInstanceID() info.InstanceID {
instanceID, err := metadata.Get("instance/id")
if err != nil {
return info.UnknownInstance
}
return info.InstanceID(info.InstanceType(instanceID))
}