/
cloudinfo.go
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/
cloudinfo.go
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// 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.
// Get information about the cloud provider (if any) cAdvisor is running on.
package cloudinfo
import (
"k8s.io/klog/v2"
info "github.com/google/cadvisor/info/v1"
)
type CloudInfo interface {
GetCloudProvider() info.CloudProvider
GetInstanceType() info.InstanceType
GetInstanceID() info.InstanceID
}
// CloudProvider is an abstraction for providing cloud-specific information.
type CloudProvider interface {
// IsActiveProvider determines whether this is the cloud provider operating
// this instance.
IsActiveProvider() bool
// GetInstanceType gets the type of instance this process is running on.
// The behavior is undefined if this is not the active provider.
GetInstanceType() info.InstanceType
// GetInstanceType gets the ID of the instance this process is running on.
// The behavior is undefined if this is not the active provider.
GetInstanceID() info.InstanceID
}
var providers = map[info.CloudProvider]CloudProvider{}
// RegisterCloudProvider registers the given cloud provider
func RegisterCloudProvider(name info.CloudProvider, provider CloudProvider) {
if _, alreadyRegistered := providers[name]; alreadyRegistered {
klog.Warningf("Duplicate registration of CloudProvider %s", name)
}
providers[name] = provider
}
type realCloudInfo struct {
cloudProvider info.CloudProvider
instanceType info.InstanceType
instanceID info.InstanceID
}
func NewRealCloudInfo() CloudInfo {
for name, provider := range providers {
if provider.IsActiveProvider() {
return &realCloudInfo{
cloudProvider: name,
instanceType: provider.GetInstanceType(),
instanceID: provider.GetInstanceID(),
}
}
}
// No registered active provider.
return &realCloudInfo{
cloudProvider: info.UnknownProvider,
instanceType: info.UnknownInstance,
instanceID: info.UnNamedInstance,
}
}
func (i *realCloudInfo) GetCloudProvider() info.CloudProvider {
return i.cloudProvider
}
func (i *realCloudInfo) GetInstanceType() info.InstanceType {
return i.instanceType
}
func (i *realCloudInfo) GetInstanceID() info.InstanceID {
return i.instanceID
}