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Configuration changes
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@ -97,10 +97,14 @@ type Config struct {
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CloudProviderBackoffJitter float64 `json:"cloudProviderBackoffJitter" yaml:"cloudProviderBackoffJitter"`
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// Enable rate limiting
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CloudProviderRateLimit bool `json:"cloudProviderRateLimit" yaml:"cloudProviderRateLimit"`
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// Rate limit QPS
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// Rate limit QPS (Read)
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CloudProviderRateLimitQPS float32 `json:"cloudProviderRateLimitQPS" yaml:"cloudProviderRateLimitQPS"`
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// Rate limit Bucket Size
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CloudProviderRateLimitBucket int `json:"cloudProviderRateLimitBucket" yaml:"cloudProviderRateLimitBucket"`
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// Rate limit QPS (Write)
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CloudProviderRateLimitQPSWrite float32 `json:"cloudProviderRateLimitQPS" yaml:"cloudProviderRateLimitQPSWrite"`
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// Rate limit Bucket Size
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CloudProviderRateLimitBucketWrite int `json:"cloudProviderRateLimitBucket" yaml:"cloudProviderRateLimitBucketWrite"`
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// Use instance metadata service where possible
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UseInstanceMetadata bool `json:"useInstanceMetadata" yaml:"useInstanceMetadata"`
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@ -168,6 +172,10 @@ func NewCloud(configReader io.Reader) (cloudprovider.Interface, error) {
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// operationPollRateLimiter.Accept() is a no-op if rate limits are configured off.
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operationPollRateLimiter := flowcontrol.NewFakeAlwaysRateLimiter()
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operationPollRateLimiterWrite := flowcontrol.NewFakeAlwaysRateLimiter()
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// If reader is provided (and no writer) we will
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// use the same value for both.
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if config.CloudProviderRateLimit {
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// Assign rate limit defaults if no configuration was passed in
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if config.CloudProviderRateLimitQPS == 0 {
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@ -176,12 +184,29 @@ func NewCloud(configReader io.Reader) (cloudprovider.Interface, error) {
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if config.CloudProviderRateLimitBucket == 0 {
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config.CloudProviderRateLimitBucket = rateLimitBucketDefault
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}
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if config.CloudProviderRateLimitQPSWrite == 0 {
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config.CloudProviderRateLimitQPSWrite = rateLimitQPSDefault
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}
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if config.CloudProviderRateLimitBucketWrite == 0 {
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config.CloudProviderRateLimitBucketWrite = rateLimitBucketDefault
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}
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operationPollRateLimiter = flowcontrol.NewTokenBucketRateLimiter(
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config.CloudProviderRateLimitQPS,
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config.CloudProviderRateLimitBucket)
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glog.V(2).Infof("Azure cloudprovider using rate limit config: QPS=%g, bucket=%d",
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operationPollRateLimiterWrite = flowcontrol.NewTokenBucketRateLimiter(
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config.CloudProviderRateLimitQPSWrite,
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config.CloudProviderRateLimitBucketWrite)
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glog.V(2).Infof("Azure cloudprovider (read ops) using rate limit config: QPS=%g, bucket=%d",
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config.CloudProviderRateLimitQPS,
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config.CloudProviderRateLimitBucket)
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glog.V(2).Infof("Azure cloudprovider (write ops) using rate limit config: QPS=%g, bucket=%d",
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config.CloudProviderRateLimitQPSWrite,
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config.CloudProviderRateLimitBucketWrite)
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}
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azClientConfig := &azClientConfig{
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@ -189,7 +214,7 @@ func NewCloud(configReader io.Reader) (cloudprovider.Interface, error) {
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resourceManagerEndpoint: env.ResourceManagerEndpoint,
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servicePrincipalToken: servicePrincipalToken,
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rateLimiterReader: operationPollRateLimiter,
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rateLimiterWriter: operationPollRateLimiter,
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rateLimiterWriter: operationPollRateLimiterWrite,
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}
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az := Cloud{
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Config: *config,
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