github.com/google/cadvisor@v0.49.1/utils/cloudinfo/azure/azure.go (about)

     1  // Copyright 2015 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cloudinfo
    16  
    17  import (
    18  	"os"
    19  	"strings"
    20  
    21  	info "github.com/google/cadvisor/info/v1"
    22  	"github.com/google/cadvisor/utils/cloudinfo"
    23  )
    24  
    25  const (
    26  	sysVendorFileName    = "/sys/class/dmi/id/sys_vendor"
    27  	biosUUIDFileName     = "/sys/class/dmi/id/product_uuid"
    28  	microsoftCorporation = "Microsoft Corporation"
    29  )
    30  
    31  func init() {
    32  	cloudinfo.RegisterCloudProvider(info.Azure, &provider{})
    33  }
    34  
    35  type provider struct{}
    36  
    37  var _ cloudinfo.CloudProvider = provider{}
    38  
    39  func (provider) IsActiveProvider() bool {
    40  	data, err := os.ReadFile(sysVendorFileName)
    41  	if err != nil {
    42  		return false
    43  	}
    44  	return strings.Contains(string(data), microsoftCorporation)
    45  }
    46  
    47  // TODO: Implement method.
    48  func (provider) GetInstanceType() info.InstanceType {
    49  	return info.UnknownInstance
    50  }
    51  
    52  func (provider) GetInstanceID() info.InstanceID {
    53  	data, err := os.ReadFile(biosUUIDFileName)
    54  	if err != nil {
    55  		return info.UnNamedInstance
    56  	}
    57  	return info.InstanceID(strings.TrimSuffix(string(data), "\n"))
    58  }