mirror of https://github.com/k3s-io/k3s
89 lines
2.6 KiB
Go
89 lines
2.6 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.
|
|
|
|
// Get information about the cloud provider (if any) cAdvisor is running on.
|
|
|
|
package cloudinfo
|
|
|
|
import (
|
|
info "github.com/google/cadvisor/info/v1"
|
|
"k8s.io/klog/v2"
|
|
)
|
|
|
|
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
|
|
}
|