mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-19 07:01:02 +01:00
67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
|
// Copyright 2024 Google LLC
|
||
|
|
//
|
||
|
|
// 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 compute
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"runtime"
|
||
|
|
"strings"
|
||
|
|
"sync"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
vmOnGCEOnce sync.Once
|
||
|
|
vmOnGCE bool
|
||
|
|
)
|
||
|
|
|
||
|
|
// OnComputeEngine returns whether the client is running on GCE.
|
||
|
|
//
|
||
|
|
// This is a copy of the gRPC internal googlecloud.OnGCE() func at:
|
||
|
|
// https://github.com/grpc/grpc-go/blob/master/internal/googlecloud/googlecloud.go
|
||
|
|
// The functionality is similar to the metadata.OnGCE() func at:
|
||
|
|
// https://github.com/xmenxk/google-cloud-go/blob/main/compute/metadata/metadata.go
|
||
|
|
//
|
||
|
|
// The difference is that OnComputeEngine() does not perform HTTP or DNS check on the metadata server.
|
||
|
|
// In particular, OnComputeEngine() will return false on Serverless.
|
||
|
|
func OnComputeEngine() bool {
|
||
|
|
vmOnGCEOnce.Do(func() {
|
||
|
|
mf, err := manufacturer()
|
||
|
|
if err != nil {
|
||
|
|
log.Printf("Failed to read manufacturer, vmOnGCE=false: %v", err)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
vmOnGCE = isRunningOnGCE(mf, runtime.GOOS)
|
||
|
|
})
|
||
|
|
return vmOnGCE
|
||
|
|
}
|
||
|
|
|
||
|
|
// isRunningOnGCE checks whether the local system, without doing a network request, is
|
||
|
|
// running on GCP.
|
||
|
|
func isRunningOnGCE(manufacturer []byte, goos string) bool {
|
||
|
|
name := string(manufacturer)
|
||
|
|
switch goos {
|
||
|
|
case "linux":
|
||
|
|
name = strings.TrimSpace(name)
|
||
|
|
return name == "Google" || name == "Google Compute Engine"
|
||
|
|
case "windows":
|
||
|
|
name = strings.Replace(name, " ", "", -1)
|
||
|
|
name = strings.Replace(name, "\n", "", -1)
|
||
|
|
name = strings.Replace(name, "\r", "", -1)
|
||
|
|
return name == "Google"
|
||
|
|
default:
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
}
|