Add detailed_metric support for xds-config

api/ratelimit/config/ratelimit/v3/rls_conf.proto

@@ -42,6 +42,9 @@ message RateLimitDescriptor {
 
   // Mark the descriptor as shadow. When the values is true, rate limit service allow requests to the backend.
   bool shadow_mode = 5;
+
+  // Setting the `detailed_metric: true` for a descriptor will extend the metrics that are produced.
+  bool detailed_metric = 6;
 }
 
 // Rate-limit policy.
@@ -88,17 +91,4 @@ enum RateLimitUnit {
 
   // The time unit representing a day.
   DAY = 4;
-}
-
-// [#protodoc-title: Rate Limit Config Discovery Service (RLS Conf DS)]
-
-// Return list of all rate limit configs that rate limit service should be configured with.
-service RateLimitConfigDiscoveryService {
-  rpc StreamRlsConfigs(stream envoy.service.discovery.v3.DiscoveryRequest)
-      returns (stream envoy.service.discovery.v3.DiscoveryResponse) {
-  }
-
-  rpc FetchRlsConfigs(envoy.service.discovery.v3.DiscoveryRequest)
-      returns (envoy.service.discovery.v3.DiscoveryResponse) {
-  }
-}
+}

examples/xds-sotw-config-server/go.mod

@@ -3,7 +3,7 @@ module github.com/envoyproxy/ratelimit/examples/xds-sotw-config-server
 go 1.21.5
 
 require (
-	github.com/envoyproxy/go-control-plane v0.11.1
+	github.com/envoyproxy/go-control-plane v0.12.1-0.20240123181358-841e293a220b
 	google.golang.org/grpc v1.59.0
 )
 
@@ -12,11 +12,12 @@ require (
 	github.com/cncf/xds/go v0.0.0-20230607035331-e9ce68804cb4 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.0.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/planetscale/vtprotobuf v0.5.1-0.20231212170721-e7d721933795 // indirect
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/sys v0.13.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 	google.golang.org/genproto v0.0.0-20230822172742-b8732ec3820d // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20230822172742-b8732ec3820d // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
+	google.golang.org/protobuf v1.32.0 // indirect
 )

examples/xds-sotw-config-server/go.sum

@@ -9,8 +9,8 @@ github.com/cncf/xds/go v0.0.0-20230607035331-e9ce68804cb4/go.mod h1:eXthEFrGJvWH
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.11.1 h1:wSUXTlLfiAQRWs2F+p+EKOY9rUyis1MyGqJ2DIk5HpM=
-github.com/envoyproxy/go-control-plane v0.11.1/go.mod h1:uhMcXKCQMEJHiAb0w+YGefQLaTEw+YhGluxZkrTmD0g=
+github.com/envoyproxy/go-control-plane v0.12.1-0.20240123181358-841e293a220b h1:M0BhcNaW04UV1haQO8IFSDB64dAeiBSsTMZks/sYDcQ=
+github.com/envoyproxy/go-control-plane v0.12.1-0.20240123181358-841e293a220b/go.mod h1:lFu6itz1hckLR2A3aJ+ZKf3lu8HpjTsJSsqvVF6GL6g=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/envoyproxy/protoc-gen-validate v1.0.2 h1:QkIBuU5k+x7/QXPvPPnWXWlCdaBFApVqftFV6k087DA=
 github.com/envoyproxy/protoc-gen-validate v1.0.2/go.mod h1:GpiZQP3dDbg4JouG/NNS7QWXpgx6x8QiMKdmN72jogE=
@@ -25,11 +25,13 @@ github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5a
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/planetscale/vtprotobuf v0.5.1-0.20231212170721-e7d721933795 h1:pH+U6pJP0BhxqQ4njBUjOg0++WMMvv3eByWzB+oATBY=
+github.com/planetscale/vtprotobuf v0.5.1-0.20231212170721-e7d721933795/go.mod h1:t/avpk3KcrXxUnYOhZhMXJlSEyie6gQbtLq5NM3loB8=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
-github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -74,8 +76,8 @@ google.golang.org/grpc v1.59.0 h1:Z5Iec2pjwb+LEOqzpB2MR12/eKFhDPhuqW91O+4bwUk=
 google.golang.org/grpc v1.59.0/go.mod h1:aUPDwccQo6OTjy7Hct4AfBPD1GptF4fyUjIkQ9YtF98=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
+google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

examples/xds-sotw-config-server/resource.go

@@ -93,7 +93,8 @@ func makeRlsConfig() []types.Resource {
 					},
 					Descriptors: []*rls_config.RateLimitDescriptor{
 						{
-							Key: "bar",
+							Key:            "bar",
+							DetailedMetric: true,
 							RateLimit: &rls_config.RateLimitPolicy{
 								Unit:            rls_config.RateLimitUnit_MINUTE,
 								RequestsPerUnit: 3,

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/alicebob/miniredis/v2 v2.31.0
 	github.com/bradfitz/gomemcache v0.0.0-20230905024940-24af94b03874
 	github.com/coocood/freecache v1.2.4
-	github.com/envoyproxy/go-control-plane v0.11.1
+	github.com/envoyproxy/go-control-plane v0.12.1-0.20240123181358-841e293a220b
 	github.com/golang/mock v1.6.0
 	github.com/golang/protobuf v1.5.3
 	github.com/google/uuid v1.4.0
@@ -28,7 +28,7 @@ require (
 	go.opentelemetry.io/otel/trace v1.21.0
 	golang.org/x/net v0.19.0
 	google.golang.org/grpc v1.59.0
-	google.golang.org/protobuf v1.31.0
+	google.golang.org/protobuf v1.32.0
 	gopkg.in/yaml.v2 v2.4.0
 )
 
@@ -44,6 +44,7 @@ require (
 	github.com/go-logr/logr v1.3.0 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.18.1 // indirect
+	github.com/planetscale/vtprotobuf v0.5.1-0.20231212170721-e7d721933795 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/stretchr/objx v0.5.1 // indirect
 	github.com/yuin/gopher-lua v1.1.1 // indirect

go.sum

@@ -37,8 +37,8 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
-github.com/envoyproxy/go-control-plane v0.11.1 h1:wSUXTlLfiAQRWs2F+p+EKOY9rUyis1MyGqJ2DIk5HpM=
-github.com/envoyproxy/go-control-plane v0.11.1/go.mod h1:uhMcXKCQMEJHiAb0w+YGefQLaTEw+YhGluxZkrTmD0g=
+github.com/envoyproxy/go-control-plane v0.12.1-0.20240123181358-841e293a220b h1:M0BhcNaW04UV1haQO8IFSDB64dAeiBSsTMZks/sYDcQ=
+github.com/envoyproxy/go-control-plane v0.12.1-0.20240123181358-841e293a220b/go.mod h1:lFu6itz1hckLR2A3aJ+ZKf3lu8HpjTsJSsqvVF6GL6g=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/envoyproxy/protoc-gen-validate v1.0.2 h1:QkIBuU5k+x7/QXPvPPnWXWlCdaBFApVqftFV6k087DA=
 github.com/envoyproxy/protoc-gen-validate v1.0.2/go.mod h1:GpiZQP3dDbg4JouG/NNS7QWXpgx6x8QiMKdmN72jogE=
@@ -101,6 +101,8 @@ github.com/mediocregopher/radix/v3 v3.8.1 h1:rOkHflVuulFKlwsLY01/M2cM2tWCjDoETcM
 github.com/mediocregopher/radix/v3 v3.8.1/go.mod h1:8FL3F6UQRXHXIBSPUs5h0RybMF8i4n7wVopoX3x7Bv8=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/planetscale/vtprotobuf v0.5.1-0.20231212170721-e7d721933795 h1:pH+U6pJP0BhxqQ4njBUjOg0++WMMvv3eByWzB+oATBY=
+github.com/planetscale/vtprotobuf v0.5.1-0.20231212170721-e7d721933795/go.mod h1:t/avpk3KcrXxUnYOhZhMXJlSEyie6gQbtLq5NM3loB8=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@@ -244,8 +246,8 @@ google.golang.org/grpc v1.59.0 h1:Z5Iec2pjwb+LEOqzpB2MR12/eKFhDPhuqW91O+4bwUk=
 google.golang.org/grpc v1.59.0/go.mod h1:aUPDwccQo6OTjy7Hct4AfBPD1GptF4fyUjIkQ9YtF98=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
+google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=

integration-test/scripts/value-included-in-stats-key-when-unspecified.sh

@@ -24,7 +24,7 @@ if [ $? -eq 0 ]; then
 fi
 
 # Sleep a bit to allow the stats to be propagated
-sleep 2
+sleep 5
 
 # Extract the metric for the unspecified value, which shoulb be there due to the "detailed_metric"
 stats=$(curl -f -s statsd:9102/metrics | grep -e ratelimit_service_rate_limit_over_limit | grep unspec_unspecified_value | cut -d} -f2 | sed 's/ //g')

src/config/config.go

@@ -17,14 +17,14 @@ func (e RateLimitConfigError) Error() string {
 
 // Wrapper for an individual rate limit config entry which includes the defined limit and stats.
 type RateLimit struct {
-	FullKey                              string
-	Stats                                stats.RateLimitStats
-	Limit                                *pb.RateLimitResponse_RateLimit
-	Unlimited                            bool
-	ShadowMode                           bool
-	Name                                 string
-	Replaces                             []string
-	IncludeValueInMetricWhenNotSpecified bool
+	FullKey        string
+	Stats          stats.RateLimitStats
+	Limit          *pb.RateLimitResponse_RateLimit
+	Unlimited      bool
+	ShadowMode     bool
+	Name           string
+	Replaces       []string
+	DetailedMetric bool
 }
 
 // Interface for interacting with a loaded rate limit config.

src/config/config_impl.go

@@ -26,12 +26,12 @@ type YamlRateLimit struct {
 }
 
 type YamlDescriptor struct {
-	Key                               string
-	Value                             string
-	RateLimit                         *YamlRateLimit `yaml:"rate_limit"`
-	Descriptors                       []YamlDescriptor
-	ShadowMode                        bool `yaml:"shadow_mode"`
-	IncludeMetricsForUnspecifiedValue bool `yaml:"detailed_metric"`
+	Key            string
+	Value          string
+	RateLimit      *YamlRateLimit `yaml:"rate_limit"`
+	Descriptors    []YamlDescriptor
+	ShadowMode     bool `yaml:"shadow_mode"`
+	DetailedMetric bool `yaml:"detailed_metric"`
 }
 
 type YamlRoot struct {
@@ -77,7 +77,7 @@ var validKeys = map[string]bool{
 // @param unlimited supplies whether the rate limit is unlimited
 // @return the new config entry.
 func NewRateLimit(requestsPerUnit uint32, unit pb.RateLimitResponse_RateLimit_Unit, rlStats stats.RateLimitStats,
-	unlimited bool, shadowMode bool, name string, replaces []string, includeValueInMetricWhenNotSpecified bool) *RateLimit {
+	unlimited bool, shadowMode bool, name string, replaces []string, detailedMetric bool) *RateLimit {
 
 	return &RateLimit{
 		FullKey: rlStats.GetKey(),
@@ -86,11 +86,11 @@ func NewRateLimit(requestsPerUnit uint32, unit pb.RateLimitResponse_RateLimit_Un
 			RequestsPerUnit: requestsPerUnit,
 			Unit:            unit,
 		},
-		Unlimited:                            unlimited,
-		ShadowMode:                           shadowMode,
-		Name:                                 name,
-		Replaces:                             replaces,
-		IncludeValueInMetricWhenNotSpecified: includeValueInMetricWhenNotSpecified,
+		Unlimited:      unlimited,
+		ShadowMode:     shadowMode,
+		Name:           name,
+		Replaces:       replaces,
+		DetailedMetric: detailedMetric,
 	}
 }
 
@@ -167,7 +167,7 @@ func (this *rateLimitDescriptor) loadDescriptors(config RateLimitConfigToLoad, p
 			rateLimit = NewRateLimit(
 				descriptorConfig.RateLimit.RequestsPerUnit, pb.RateLimitResponse_RateLimit_Unit(value),
 				statsManager.NewStats(newParentKey), unlimited, descriptorConfig.ShadowMode,
-				descriptorConfig.RateLimit.Name, replaces, descriptorConfig.IncludeMetricsForUnspecifiedValue,
+				descriptorConfig.RateLimit.Name, replaces, descriptorConfig.DetailedMetric,
 			)
 			rateLimitDebugString = fmt.Sprintf(
 				" ratelimit={requests_per_unit=%d, unit=%s, unlimited=%t, shadow_mode=%t}", rateLimit.Limit.RequestsPerUnit,
@@ -342,7 +342,7 @@ func (this *rateLimitConfigImpl) GetLimit(
 			logger.Debugf("iterating to next level")
 			descriptorsMap = nextDescriptor.descriptors
 		} else {
-			if rateLimit != nil && rateLimit.IncludeValueInMetricWhenNotSpecified {
+			if rateLimit != nil && rateLimit.DetailedMetric {
 				rateLimit = NewRateLimit(rateLimit.Limit.RequestsPerUnit, rateLimit.Limit.Unit, this.statsManager.NewStats(rateLimit.FullKey+"_"+entry.Value), rateLimit.Unlimited, rateLimit.ShadowMode, rateLimit.Name, rateLimit.Replaces, false)
 			}
 

src/config/config_xds.go

@@ -16,11 +16,12 @@ func rateLimitDescriptorsPbToYaml(pb []*rls_conf_v3.RateLimitDescriptor) []YamlD
 	descriptors := make([]YamlDescriptor, len(pb))
 	for i, d := range pb {
 		descriptors[i] = YamlDescriptor{
-			Key:         d.Key,
-			Value:       d.Value,
-			RateLimit:   rateLimitPolicyPbToYaml(d.RateLimit),
-			Descriptors: rateLimitDescriptorsPbToYaml(d.Descriptors),
-			ShadowMode:  d.ShadowMode,
+			Key:            d.Key,
+			Value:          d.Value,
+			RateLimit:      rateLimitPolicyPbToYaml(d.RateLimit),
+			Descriptors:    rateLimitDescriptorsPbToYaml(d.Descriptors),
+			ShadowMode:     d.ShadowMode,
+			DetailedMetric: d.DetailedMetric,
 		}
 	}