代码拉取完成,页面将自动刷新
/*
Copyright 2016 The Kubernetes Authors.
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 azure
import (
"fmt"
"io"
"io/ioutil"
"time"
"k8s.io/client-go/util/flowcontrol"
"k8s.io/kubernetes/pkg/cloudprovider"
"k8s.io/kubernetes/pkg/version"
"github.com/Azure/azure-sdk-for-go/arm/compute"
"github.com/Azure/azure-sdk-for-go/arm/network"
"github.com/Azure/azure-sdk-for-go/arm/storage"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/ghodss/yaml"
"github.com/golang/glog"
"k8s.io/apimachinery/pkg/util/wait"
)
const (
// CloudProviderName is the value used for the --cloud-provider flag
CloudProviderName = "azure"
rateLimitQPSDefault = 1.0
rateLimitBucketDefault = 5
backoffRetriesDefault = 6
backoffExponentDefault = 1.5
backoffDurationDefault = 5 // in seconds
backoffJitterDefault = 1.0
)
// Config holds the configuration parsed from the --cloud-config flag
// All fields are required unless otherwise specified
type Config struct {
// The cloud environment identifier. Takes values from https://github.com/Azure/go-autorest/blob/ec5f4903f77ed9927ac95b19ab8e44ada64c1356/autorest/azure/environments.go#L13
Cloud string `json:"cloud" yaml:"cloud"`
// The AAD Tenant ID for the Subscription that the cluster is deployed in
TenantID string `json:"tenantId" yaml:"tenantId"`
// The ID of the Azure Subscription that the cluster is deployed in
SubscriptionID string `json:"subscriptionId" yaml:"subscriptionId"`
// The name of the resource group that the cluster is deployed in
ResourceGroup string `json:"resourceGroup" yaml:"resourceGroup"`
// The location of the resource group that the cluster is deployed in
Location string `json:"location" yaml:"location"`
// The name of the VNet that the cluster is deployed in
VnetName string `json:"vnetName" yaml:"vnetName"`
// The name of the subnet that the cluster is deployed in
SubnetName string `json:"subnetName" yaml:"subnetName"`
// The name of the security group attached to the cluster's subnet
SecurityGroupName string `json:"securityGroupName" yaml:"securityGroupName"`
// (Optional in 1.6) The name of the route table attached to the subnet that the cluster is deployed in
RouteTableName string `json:"routeTableName" yaml:"routeTableName"`
// (Optional) The name of the availability set that should be used as the load balancer backend
// If this is set, the Azure cloudprovider will only add nodes from that availability set to the load
// balancer backend pool. If this is not set, and multiple agent pools (availability sets) are used, then
// the cloudprovider will try to add all nodes to a single backend pool which is forbidden.
// In other words, if you use multiple agent pools (availability sets), you MUST set this field.
PrimaryAvailabilitySetName string `json:"primaryAvailabilitySetName" yaml:"primaryAvailabilitySetName"`
// The ClientID for an AAD application with RBAC access to talk to Azure RM APIs
AADClientID string `json:"aadClientId" yaml:"aadClientId"`
// The ClientSecret for an AAD application with RBAC access to talk to Azure RM APIs
AADClientSecret string `json:"aadClientSecret" yaml:"aadClientSecret"`
// Enable exponential backoff to manage resource request retries
CloudProviderBackoff bool `json:"cloudProviderBackoff" yaml:"cloudProviderBackoff"`
// Backoff retry limit
CloudProviderBackoffRetries int `json:"cloudProviderBackoffRetries" yaml:"cloudProviderBackoffRetries"`
// Backoff exponent
CloudProviderBackoffExponent float64 `json:"cloudProviderBackoffExponent" yaml:"cloudProviderBackoffExponent"`
// Backoff duration
CloudProviderBackoffDuration int `json:"cloudProviderBackoffDuration" yaml:"cloudProviderBackoffDuration"`
// Backoff jitter
CloudProviderBackoffJitter float64 `json:"cloudProviderBackoffJitter" yaml:"cloudProviderBackoffJitter"`
// Enable rate limiting
CloudProviderRateLimit bool `json:"cloudProviderRateLimit" yaml:"cloudProviderRateLimit"`
// Rate limit QPS
CloudProviderRateLimitQPS float32 `json:"cloudProviderRateLimitQPS" yaml:"cloudProviderRateLimitQPS"`
// Rate limit Bucket Size
CloudProviderRateLimitBucket int `json:"cloudProviderRateLimitBucket" yaml:"cloudProviderRateLimitBucket"`
}
// Cloud holds the config and clients
type Cloud struct {
Config
Environment azure.Environment
RoutesClient network.RoutesClient
SubnetsClient network.SubnetsClient
InterfacesClient network.InterfacesClient
RouteTablesClient network.RouteTablesClient
LoadBalancerClient network.LoadBalancersClient
PublicIPAddressesClient network.PublicIPAddressesClient
SecurityGroupsClient network.SecurityGroupsClient
VirtualMachinesClient compute.VirtualMachinesClient
StorageAccountClient storage.AccountsClient
operationPollRateLimiter flowcontrol.RateLimiter
resourceRequestBackoff wait.Backoff
}
func init() {
cloudprovider.RegisterCloudProvider(CloudProviderName, NewCloud)
}
// NewCloud returns a Cloud with initialized clients
func NewCloud(configReader io.Reader) (cloudprovider.Interface, error) {
var az Cloud
configContents, err := ioutil.ReadAll(configReader)
if err != nil {
return nil, err
}
err = yaml.Unmarshal(configContents, &az)
if err != nil {
return nil, err
}
if az.Cloud == "" {
az.Environment = azure.PublicCloud
} else {
az.Environment, err = azure.EnvironmentFromName(az.Cloud)
if err != nil {
return nil, err
}
}
oauthConfig, err := az.Environment.OAuthConfigForTenant(az.TenantID)
if err != nil {
return nil, err
}
servicePrincipalToken, err := azure.NewServicePrincipalToken(
*oauthConfig,
az.AADClientID,
az.AADClientSecret,
az.Environment.ServiceManagementEndpoint)
if err != nil {
return nil, err
}
az.SubnetsClient = network.NewSubnetsClient(az.SubscriptionID)
az.SubnetsClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.SubnetsClient.Authorizer = servicePrincipalToken
az.SubnetsClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.SubnetsClient.Client)
az.RouteTablesClient = network.NewRouteTablesClient(az.SubscriptionID)
az.RouteTablesClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.RouteTablesClient.Authorizer = servicePrincipalToken
az.RouteTablesClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.RouteTablesClient.Client)
az.RoutesClient = network.NewRoutesClient(az.SubscriptionID)
az.RoutesClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.RoutesClient.Authorizer = servicePrincipalToken
az.RoutesClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.RoutesClient.Client)
az.InterfacesClient = network.NewInterfacesClient(az.SubscriptionID)
az.InterfacesClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.InterfacesClient.Authorizer = servicePrincipalToken
az.InterfacesClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.InterfacesClient.Client)
az.LoadBalancerClient = network.NewLoadBalancersClient(az.SubscriptionID)
az.LoadBalancerClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.LoadBalancerClient.Authorizer = servicePrincipalToken
az.LoadBalancerClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.LoadBalancerClient.Client)
az.VirtualMachinesClient = compute.NewVirtualMachinesClient(az.SubscriptionID)
az.VirtualMachinesClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.VirtualMachinesClient.Authorizer = servicePrincipalToken
az.VirtualMachinesClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.VirtualMachinesClient.Client)
az.PublicIPAddressesClient = network.NewPublicIPAddressesClient(az.SubscriptionID)
az.PublicIPAddressesClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.PublicIPAddressesClient.Authorizer = servicePrincipalToken
az.PublicIPAddressesClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.PublicIPAddressesClient.Client)
az.SecurityGroupsClient = network.NewSecurityGroupsClient(az.SubscriptionID)
az.SecurityGroupsClient.BaseURI = az.Environment.ResourceManagerEndpoint
az.SecurityGroupsClient.Authorizer = servicePrincipalToken
az.SecurityGroupsClient.PollingDelay = 5 * time.Second
configureUserAgent(&az.SecurityGroupsClient.Client)
az.StorageAccountClient = storage.NewAccountsClientWithBaseURI(az.Environment.ResourceManagerEndpoint, az.SubscriptionID)
az.StorageAccountClient.Authorizer = servicePrincipalToken
// Conditionally configure rate limits
if az.CloudProviderRateLimit {
// Assign rate limit defaults if no configuration was passed in
if az.CloudProviderRateLimitQPS == 0 {
az.CloudProviderRateLimitQPS = rateLimitQPSDefault
}
if az.CloudProviderRateLimitBucket == 0 {
az.CloudProviderRateLimitBucket = rateLimitBucketDefault
}
az.operationPollRateLimiter = flowcontrol.NewTokenBucketRateLimiter(
az.CloudProviderRateLimitQPS,
az.CloudProviderRateLimitBucket)
glog.V(2).Infof("Azure cloudprovider using rate limit config: QPS=%d, bucket=%d",
az.CloudProviderRateLimitQPS,
az.CloudProviderRateLimitBucket)
} else {
// if rate limits are configured off, az.operationPollRateLimiter.Accept() is a no-op
az.operationPollRateLimiter = flowcontrol.NewFakeAlwaysRateLimiter()
}
// Conditionally configure resource request backoff
if az.CloudProviderBackoff {
// Assign backoff defaults if no configuration was passed in
if az.CloudProviderBackoffRetries == 0 {
az.CloudProviderBackoffRetries = backoffRetriesDefault
}
if az.CloudProviderBackoffExponent == 0 {
az.CloudProviderBackoffExponent = backoffExponentDefault
}
if az.CloudProviderBackoffDuration == 0 {
az.CloudProviderBackoffDuration = backoffDurationDefault
}
if az.CloudProviderBackoffJitter == 0 {
az.CloudProviderBackoffJitter = backoffJitterDefault
}
az.resourceRequestBackoff = wait.Backoff{
Steps: az.CloudProviderBackoffRetries,
Factor: az.CloudProviderBackoffExponent,
Duration: time.Duration(az.CloudProviderBackoffDuration) * time.Second,
Jitter: az.CloudProviderBackoffJitter,
}
glog.V(2).Infof("Azure cloudprovider using retry backoff: retries=%d, exponent=%f, duration=%d, jitter=%f",
az.CloudProviderBackoffRetries,
az.CloudProviderBackoffExponent,
az.CloudProviderBackoffDuration,
az.CloudProviderBackoffJitter)
}
return &az, nil
}
// LoadBalancer returns a balancer interface. Also returns true if the interface is supported, false otherwise.
func (az *Cloud) LoadBalancer() (cloudprovider.LoadBalancer, bool) {
return az, true
}
// Instances returns an instances interface. Also returns true if the interface is supported, false otherwise.
func (az *Cloud) Instances() (cloudprovider.Instances, bool) {
return az, true
}
// Zones returns a zones interface. Also returns true if the interface is supported, false otherwise.
func (az *Cloud) Zones() (cloudprovider.Zones, bool) {
return az, true
}
// Clusters returns a clusters interface. Also returns true if the interface is supported, false otherwise.
func (az *Cloud) Clusters() (cloudprovider.Clusters, bool) {
return nil, false
}
// Routes returns a routes interface along with whether the interface is supported.
func (az *Cloud) Routes() (cloudprovider.Routes, bool) {
return az, true
}
// ScrubDNS provides an opportunity for cloud-provider-specific code to process DNS settings for pods.
func (az *Cloud) ScrubDNS(nameservers, searches []string) (nsOut, srchOut []string) {
return nameservers, searches
}
// ProviderName returns the cloud provider ID.
func (az *Cloud) ProviderName() string {
return CloudProviderName
}
func configureUserAgent(client *autorest.Client) {
k8sVersion := version.Get().GitVersion
client.UserAgent = fmt.Sprintf("%s; %s", client.UserAgent, k8sVersion)
}
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。