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Change grpc_prometheus dependency source #1968

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24 changes: 13 additions & 11 deletions cmd/app/grpc.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,9 +33,8 @@ import (
ctclient "github.com/google/certificate-transparency-go/client"
grpcmw "github.com/grpc-ecosystem/go-grpc-middleware"
grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus"
grpc_recovery "github.com/grpc-ecosystem/go-grpc-middleware/recovery"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"github.com/prometheus/client_golang/prometheus"
"github.com/sigstore/fulcio/pkg/ca"
"github.com/sigstore/fulcio/pkg/config"
gw "github.com/sigstore/fulcio/pkg/generated/protobuf"
Expand Down Expand Up @@ -160,14 +159,18 @@ func (c *cachedTLSCert) GRPCCreds() grpc.ServerOption {
func createGRPCServer(cfg *config.FulcioConfig, ctClient *ctclient.LogClient, baseca ca.CertificateAuthority, algorithmRegistry *signature.AlgorithmRegistryConfig, ip identity.IssuerPool) (*grpcServer, error) {
logger, opts := log.SetupGRPCLogging()

reg := server.InitMetrics()
grpcMetrics := grpc_prometheus.NewServerMetrics(grpc_prometheus.WithServerHandlingTimeHistogram())
reg.MustRegister(grpcMetrics)

serverOpts := []grpc.ServerOption{
grpc.UnaryInterceptor(
grpcmw.ChainUnaryServer(
grpc_recovery.UnaryServerInterceptor(grpc_recovery.WithRecoveryHandlerContext(panicRecoveryHandler)), // recovers from per-transaction panics elegantly, so put it first
middleware.UnaryRequestID(middleware.UseXRequestIDMetadataOption(true), middleware.XRequestMetadataLimitOption(128)),
grpc_zap.UnaryServerInterceptor(logger, opts...),
PassFulcioConfigThruContext(cfg),
grpc_prometheus.UnaryServerInterceptor,
grpcMetrics.UnaryServerInterceptor(),
)),
grpc.KeepaliveParams(keepalive.ServerParameters{
MaxConnectionIdle: viper.GetDuration("idle-connection-timeout"),
Expand All @@ -193,18 +196,12 @@ func createGRPCServer(cfg *config.FulcioConfig, ctClient *ctclient.LogClient, ba
health.RegisterHealthServer(myServer, grpcCAServer)
// Register your gRPC service implementations.
gw.RegisterCAServer(myServer, grpcCAServer)
grpcMetrics.InitializeMetrics(myServer)

grpcServerEndpoint := fmt.Sprintf("%s:%s", viper.GetString("grpc-host"), viper.GetString("grpc-port"))
return &grpcServer{myServer, grpcServerEndpoint, grpcCAServer, tlsCertWatcher}, nil
}

func (g *grpcServer) setupPrometheus(reg *prometheus.Registry) {
grpcMetrics := grpc_prometheus.DefaultServerMetrics
grpcMetrics.EnableHandlingTimeHistogram()
reg.MustRegister(grpcMetrics, server.MetricLatency, server.RequestsCount)
grpc_prometheus.Register(g.Server)
}

func (g *grpcServer) startTCPListener(wg *sync.WaitGroup) {
// lis is closed by g.Server.Serve() upon exit
lis, err := net.Listen("tcp", g.grpcServerEndpoint)
Expand Down Expand Up @@ -274,20 +271,25 @@ func (g *grpcServer) ExposesGRPCTLS() bool {
func createLegacyGRPCServer(cfg *config.FulcioConfig, unixDomainSocket string, v2Server gw.CAServer) (*grpcServer, error) {
logger, opts := log.SetupGRPCLogging()

reg := server.InitMetrics()
grpcMetrics := grpc_prometheus.NewServerMetrics(grpc_prometheus.WithServerHandlingTimeHistogram())
reg.MustRegister(grpcMetrics)

myServer := grpc.NewServer(grpc.UnaryInterceptor(
grpcmw.ChainUnaryServer(
grpc_recovery.UnaryServerInterceptor(grpc_recovery.WithRecoveryHandlerContext(panicRecoveryHandler)), // recovers from per-transaction panics elegantly, so put it first
middleware.UnaryRequestID(middleware.UseXRequestIDMetadataOption(true), middleware.XRequestMetadataLimitOption(128)),
grpc_zap.UnaryServerInterceptor(logger, opts...),
PassFulcioConfigThruContext(cfg),
grpc_prometheus.UnaryServerInterceptor,
grpcMetrics.UnaryServerInterceptor(),
)),
grpc.MaxRecvMsgSize(int(maxMsgSize)))

legacyGRPCCAServer := server.NewLegacyGRPCCAServer(v2Server)

// Register your gRPC service implementations.
gw_legacy.RegisterCAServer(myServer, legacyGRPCCAServer)
grpcMetrics.InitializeMetrics(myServer)

return &grpcServer{myServer, unixDomainSocket, v2Server, nil}, nil
}
Expand Down
23 changes: 10 additions & 13 deletions cmd/app/serve.go
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,9 @@ import (
"github.com/google/certificate-transparency-go/jsonclient"
grpcmw "github.com/grpc-ecosystem/go-grpc-middleware"
grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus"
grpc_recovery "github.com/grpc-ecosystem/go-grpc-middleware/recovery"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
certauth "github.com/sigstore/fulcio/pkg/ca"
"github.com/sigstore/fulcio/pkg/ca/ephemeralca"
Expand Down Expand Up @@ -361,13 +360,11 @@ func runServeCmd(cmd *cobra.Command, args []string) { //nolint: revive

httpServerEndpoint := fmt.Sprintf("%v:%v", viper.GetString("http-host"), viper.GetString("http-port"))

reg := prometheus.NewRegistry()

grpcServer, err := createGRPCServer(cfg, ctClient, baseca, algorithmRegistry, ip)
if err != nil {
log.Logger.Fatal(err)
}
grpcServer.setupPrometheus(reg)

grpcServer.startTCPListener(&wg)

legacyGRPCServer, err := createLegacyGRPCServer(cfg, viper.GetString("legacy-unix-domain-socket"), grpcServer.caService)
Expand Down Expand Up @@ -444,6 +441,11 @@ func checkServeCmdConfigFile() error {
func StartDuplexServer(ctx context.Context, cfg *config.FulcioConfig, ctClient *ctclient.LogClient, baseca certauth.CertificateAuthority, algorithmRegistry *signature.AlgorithmRegistryConfig, host string, port, metricsPort int, ip identity.IssuerPool) error {
logger, opts := log.SetupGRPCLogging()

// configure Prometheus
reg := server.InitMetrics()
grpcMetrics := grpc_prometheus.NewServerMetrics(grpc_prometheus.WithServerHandlingTimeHistogram())
reg.MustRegister(grpcMetrics)

d := duplex.New(
port,
grpc.WithTransportCredentials(insecure.NewCredentials()),
Expand All @@ -456,12 +458,14 @@ func StartDuplexServer(ctx context.Context, cfg *config.FulcioConfig, ctClient *
middleware.UnaryRequestID(middleware.UseXRequestIDMetadataOption(true), middleware.XRequestMetadataLimitOption(128)),
grpc_zap.UnaryServerInterceptor(logger, opts...),
PassFulcioConfigThruContext(cfg),
grpc_prometheus.UnaryServerInterceptor,
grpcMetrics.UnaryServerInterceptor(),
)),
grpc.MaxRecvMsgSize(int(maxMsgSize)),
runtime.WithForwardResponseOption(setResponseCodeModifier),
)

grpcMetrics.InitializeMetrics(d.Server)

// GRPC server
grpcCAServer := server.NewGRPCCAServer(ctClient, baseca, algorithmRegistry, ip)
protobuf.RegisterCAServer(d.Server, grpcCAServer)
Expand All @@ -476,13 +480,6 @@ func StartDuplexServer(ctx context.Context, cfg *config.FulcioConfig, ctClient *
return fmt.Errorf("registering legacy grpc ca handler: %w", err)
}

// Prometheus
reg := prometheus.NewRegistry()
grpcMetrics := grpc_prometheus.DefaultServerMetrics
grpcMetrics.EnableHandlingTimeHistogram()
reg.MustRegister(grpcMetrics, server.MetricLatency, server.RequestsCount)
grpc_prometheus.Register(d.Server)

// Register prometheus handle.
d.RegisterListenAndServeMetrics(metricsPort, false)

Expand Down
20 changes: 11 additions & 9 deletions go.mod
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,8 +18,8 @@ require (
github.com/google/certificate-transparency-go v1.3.1
github.com/google/go-cmp v0.7.0
github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.1-0.20210315223345-82c243799c99
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.0
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1
github.com/hashicorp/golang-lru v1.0.2
github.com/magiconair/properties v1.8.9
github.com/prometheus/client_golang v1.20.5
Expand All @@ -43,21 +43,21 @@ require (
go.step.sm/crypto v0.57.0
go.uber.org/zap v1.27.0
google.golang.org/api v0.218.0
google.golang.org/genproto/googleapis/api v0.0.0-20250115164207-1a7da9e5054f
google.golang.org/genproto/googleapis/api v0.0.0-20250204164813-702378808489
google.golang.org/grpc v1.70.0
google.golang.org/protobuf v1.36.5
gopkg.in/yaml.v3 v3.0.1
sigs.k8s.io/release-utils v0.9.0
)

require (
cloud.google.com/go v0.116.0 // indirect
cloud.google.com/go v0.118.0 // indirect
cloud.google.com/go/auth v0.14.0 // indirect
cloud.google.com/go/auth/oauth2adapt v0.2.7 // indirect
cloud.google.com/go/compute/metadata v0.6.0 // indirect
cloud.google.com/go/iam v1.2.2 // indirect
cloud.google.com/go/kms v1.20.4 // indirect
cloud.google.com/go/longrunning v0.6.2 // indirect
cloud.google.com/go/iam v1.3.1 // indirect
cloud.google.com/go/kms v1.20.5 // indirect
cloud.google.com/go/longrunning v0.6.4 // indirect
dario.cat/mergo v1.0.1 // indirect
filippo.io/edwards25519 v1.1.0 // indirect
github.com/Azure/azure-sdk-for-go/sdk/azcore v1.17.0 // indirect
Expand Down Expand Up @@ -102,6 +102,8 @@ require (
github.com/google/uuid v1.6.0 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.3.4 // indirect
github.com/googleapis/gax-go/v2 v2.14.1 // indirect
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.1.0 // indirect
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.1-0.20210315223345-82c243799c99 // indirect
github.com/hashicorp/errwrap v1.1.0 // indirect
github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
github.com/hashicorp/go-multierror v1.1.1 // indirect
Expand Down Expand Up @@ -165,8 +167,8 @@ require (
golang.org/x/term v0.29.0 // indirect
golang.org/x/text v0.22.0 // indirect
golang.org/x/time v0.9.0 // indirect
google.golang.org/genproto v0.0.0-20241118233622-e639e219e697 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f // indirect
google.golang.org/genproto v0.0.0-20250124145028-65684f501c47 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20250204164813-702378808489 // indirect
gopkg.in/ini.v1 v1.67.0 // indirect
k8s.io/klog/v2 v2.130.1 // indirect
)
36 changes: 20 additions & 16 deletions go.sum
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,20 +3,20 @@ chainguard.dev/go-grpc-kit v0.17.7/go.mod h1:JroMzTY9mdhKe/bvtyChgfECaNh80+bMZH3
chainguard.dev/sdk v0.1.29 h1:GNcCw5NoyvylhlUbVD8JMmrPaeYyrshaHHjEWnvcCGI=
chainguard.dev/sdk v0.1.29/go.mod h1:DqywTjZ5glB/gUCKkrecO0LywyfcAd5v7IPo2+d91qA=
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.116.0 h1:B3fRrSDkLRt5qSHWe40ERJvhvnQwdZiHu0bJOpldweE=
cloud.google.com/go v0.116.0/go.mod h1:cEPSRWPzZEswwdr9BxE6ChEn01dWlTaF05LiC2Xs70U=
cloud.google.com/go v0.118.0 h1:tvZe1mgqRxpiVa3XlIGMiPcEUbP1gNXELgD4y/IXmeQ=
cloud.google.com/go v0.118.0/go.mod h1:zIt2pkedt/mo+DQjcT4/L3NDxzHPR29j5HcclNH+9PM=
cloud.google.com/go/auth v0.14.0 h1:A5C4dKV/Spdvxcl0ggWwWEzzP7AZMJSEIgrkngwhGYM=
cloud.google.com/go/auth v0.14.0/go.mod h1:CYsoRL1PdiDuqeQpZE0bP2pnPrGqFcOkI0nldEQis+A=
cloud.google.com/go/auth/oauth2adapt v0.2.7 h1:/Lc7xODdqcEw8IrZ9SvwnlLX6j9FHQM74z6cBk9Rw6M=
cloud.google.com/go/auth/oauth2adapt v0.2.7/go.mod h1:NTbTTzfvPl1Y3V1nPpOgl2w6d/FjO7NNUQaWSox6ZMc=
cloud.google.com/go/compute/metadata v0.6.0 h1:A6hENjEsCDtC1k8byVsgwvVcioamEHvZ4j01OwKxG9I=
cloud.google.com/go/compute/metadata v0.6.0/go.mod h1:FjyFAW1MW0C203CEOMDTu3Dk1FlqW3Rga40jzHL4hfg=
cloud.google.com/go/iam v1.2.2 h1:ozUSofHUGf/F4tCNy/mu9tHLTaxZFLOUiKzjcgWHGIA=
cloud.google.com/go/iam v1.2.2/go.mod h1:0Ys8ccaZHdI1dEUilwzqng/6ps2YB6vRsjIe00/+6JY=
cloud.google.com/go/kms v1.20.4 h1:CJ0hMpOg1ANN9tx/a/GPJ+Uxudy8k6f3fvGFuTHiE5A=
cloud.google.com/go/kms v1.20.4/go.mod h1:gPLsp1r4FblUgBYPOcvI/bUPpdMg2Jm1ZVKU4tQUfcc=
cloud.google.com/go/longrunning v0.6.2 h1:xjDfh1pQcWPEvnfjZmwjKQEcHnpz6lHjfy7Fo0MK+hc=
cloud.google.com/go/longrunning v0.6.2/go.mod h1:k/vIs83RN4bE3YCswdXC5PFfWVILjm3hpEUlSko4PiI=
cloud.google.com/go/iam v1.3.1 h1:KFf8SaT71yYq+sQtRISn90Gyhyf4X8RGgeAVC8XGf3E=
cloud.google.com/go/iam v1.3.1/go.mod h1:3wMtuyT4NcbnYNPLMBzYRFiEfjKfJlLVLrisE7bwm34=
cloud.google.com/go/kms v1.20.5 h1:aQQ8esAIVZ1atdJRxihhdxGQ64/zEbJoJnCz/ydSmKg=
cloud.google.com/go/kms v1.20.5/go.mod h1:C5A8M1sv2YWYy1AE6iSrnddSG9lRGdJq5XEdBy28Lmw=
cloud.google.com/go/longrunning v0.6.4 h1:3tyw9rO3E2XVXzSApn1gyEEnH2K9SynNQjMlBi3uHLg=
cloud.google.com/go/longrunning v0.6.4/go.mod h1:ttZpLCe6e7EXvn9OxpBRx7kZEB0efv8yBO6YnVMfhJs=
cloud.google.com/go/security v1.18.3 h1:ya9gfY1ign6Yy25VMMMgZ9xy7D/TczDB0ElXcyWmEVE=
cloud.google.com/go/security v1.18.3/go.mod h1:NmlSnEe7vzenMRoTLehUwa/ZTZHDQE59IPRevHcpCe4=
dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
Expand Down Expand Up @@ -173,10 +173,14 @@ github.com/googleapis/gax-go/v2 v2.14.1 h1:hb0FFeiPaQskmvakKu5EbCbpntQn48jyHuvrk
github.com/googleapis/gax-go/v2 v2.14.1/go.mod h1:Hb/NubMaVM88SrNkvl8X/o8XWwDJEPqouaLeN2IUxoA=
github.com/grpc-ecosystem/go-grpc-middleware v1.4.0 h1:UH//fgunKIs4JdUbpDl1VZCDaL56wXCB/5+wF6uHfaI=
github.com/grpc-ecosystem/go-grpc-middleware v1.4.0/go.mod h1:g5qyo/la0ALbONm6Vbp88Yd8NsDy6rZz+RcrMPxvld8=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.1.0 h1:pRhl55Yx1eC7BZ1N+BBWwnKaMyD8uC+34TLdndZMAKk=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.1.0/go.mod h1:XKMd7iuf/RGPSMJ/U4HP0zS2Z9Fh8Ps9a+6X26m/tmI=
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.1-0.20210315223345-82c243799c99 h1:JYghRBlGCZyCF2wNUJ8W0cwaQdtpcssJ4CgC406g+WU=
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.1-0.20210315223345-82c243799c99/go.mod h1:3bDW6wMZJB7tiONtC/1Xpicra6Wp5GgbTbQWCbI5fkc=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.0 h1:VD1gqscl4nYs1YxVuSdemTrSgTKrwOWDK0FVFMqm+Cg=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.0/go.mod h1:4EgsQoS4TOhJizV+JTFg40qx1Ofh3XmXEQNBpgvNT40=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 h1:e9Rjr40Z98/clHv5Yg79Is0NtosR5LXRvdr7o/6NwbA=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1/go.mod h1:tIxuGz/9mpox++sgp9fJjHO0+q1X9/UOWd798aAm22M=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
Expand Down Expand Up @@ -518,12 +522,12 @@ google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20200423170343-7949de9c1215/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
google.golang.org/genproto v0.0.0-20241118233622-e639e219e697 h1:ToEetK57OidYuqD4Q5w+vfEnPvPpuTwedCNVohYJfNk=
google.golang.org/genproto v0.0.0-20241118233622-e639e219e697/go.mod h1:JJrvXBWRZaFMxBufik1a4RpFw4HhgVtBBWQeQgUj2cc=
google.golang.org/genproto/googleapis/api v0.0.0-20250115164207-1a7da9e5054f h1:gap6+3Gk41EItBuyi4XX/bp4oqJ3UwuIMl25yGinuAA=
google.golang.org/genproto/googleapis/api v0.0.0-20250115164207-1a7da9e5054f/go.mod h1:Ic02D47M+zbarjYYUlK57y316f2MoN0gjAwI3f2S95o=
google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f h1:OxYkA3wjPsZyBylwymxSHa7ViiW1Sml4ToBrncvFehI=
google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f/go.mod h1:+2Yz8+CLJbIfL9z73EW45avw8Lmge3xVElCP9zEKi50=
google.golang.org/genproto v0.0.0-20250124145028-65684f501c47 h1:SI8Hf7K4+uVYchXqZiMfP44PZ83xomMWovbcFfm0P8Q=
google.golang.org/genproto v0.0.0-20250124145028-65684f501c47/go.mod h1:qbZzneIOXSq+KFAFut9krLfRLZiFLzZL5u2t8SV83EE=
google.golang.org/genproto/googleapis/api v0.0.0-20250204164813-702378808489 h1:fCuMM4fowGzigT89NCIsW57Pk9k2D12MMi2ODn+Nk+o=
google.golang.org/genproto/googleapis/api v0.0.0-20250204164813-702378808489/go.mod h1:iYONQfRdizDB8JJBybql13nArx91jcUk7zCXEsOofM4=
google.golang.org/genproto/googleapis/rpc v0.0.0-20250204164813-702378808489 h1:5bKytslY8ViY0Cj/ewmRtrWHW64bNF03cAatUUFCdFI=
google.golang.org/genproto/googleapis/rpc v0.0.0-20250204164813-702378808489/go.mod h1:8BS3B93F/U1juMFq9+EDk+qOT5CO1R9IzXxG3PTqiRk=
google.golang.org/grpc v1.18.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
Expand Down
73 changes: 44 additions & 29 deletions pkg/server/metrics.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,39 +16,54 @@
package server

import (
"sync"

"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"sigs.k8s.io/release-utils/version"
)

var (
metricNewEntries = promauto.NewCounter(prometheus.CounterOpts{
Name: "fulcio_new_certs",
Help: "The total number of certificates generated",
})

MetricLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{
Name: "fulcio_api_latency",
Help: "API Latency on calls",
}, []string{"code", "method"})

RequestsCount = promauto.NewCounterVec(prometheus.CounterOpts{
Name: "http_requests_total",
Help: "Count all HTTP requests",
}, []string{"code", "method"})

_ = promauto.NewGaugeFunc(
prometheus.GaugeOpts{
Namespace: "fulcio",
Name: "build_info",
Help: "A metric with a constant '1' value labeled by version, revision, branch, and goversion from which fulcio was built.",
ConstLabels: prometheus.Labels{
"version": version.GetVersionInfo().GitVersion,
"revision": version.GetVersionInfo().GitCommit,
"build_date": version.GetVersionInfo().BuildDate,
"goversion": version.GetVersionInfo().GoVersion,
},
},
func() float64 { return 1 },
)
metricNewEntries prometheus.Counter
MetricLatency *prometheus.HistogramVec
RequestsCount *prometheus.CounterVec
)

// InitMetrics will create a single registry to share across the application
func InitMetrics() *prometheus.Registry {
return sync.OnceValue[*prometheus.Registry](func() *prometheus.Registry {

reg := prometheus.NewRegistry()
metricsFactory := promauto.With(reg)
metricNewEntries = metricsFactory.NewCounter(prometheus.CounterOpts{
Name: "fulcio_new_certs",
Help: "The total number of certificates generated",
})

MetricLatency = metricsFactory.NewHistogramVec(prometheus.HistogramOpts{
Name: "fulcio_api_latency",
Help: "API Latency on calls",
}, []string{"code", "method"})

RequestsCount = metricsFactory.NewCounterVec(prometheus.CounterOpts{
Name: "http_requests_total",
Help: "Count all HTTP requests",
}, []string{"code", "method"})

_ = metricsFactory.NewGaugeFunc(
prometheus.GaugeOpts{
Namespace: "fulcio",
Name: "build_info",
Help: "A metric with a constant '1' value labeled by version, revision, branch, and goversion from which fulcio was built.",
ConstLabels: prometheus.Labels{
"version": version.GetVersionInfo().GitVersion,
"revision": version.GetVersionInfo().GitCommit,
"build_date": version.GetVersionInfo().BuildDate,
"goversion": version.GetVersionInfo().GoVersion,
},
},
func() float64 { return 1 },
)
return reg
})()
}
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