udpdate otel meter

2026-01-08 21:50:01 +03:00
parent 8b84c4b1df
commit d8fd6c1d17
14 changed files with 397 additions and 223 deletions
--- a/.gitea/workflow/goaction.yml
+++ b/.gitea/workflow/goaction.yml
@@ -0,0 +1,30 @@
+name: Go Action 
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+ 
+jobs:
+  goaction:
+    runs-on: ubuntu-latest # Use a Gitea Actions runner label
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4 # Action to clone the repo
+
+      - name: Set up Go
+        uses: actions/setup-go@v5 # Action to install a specific Go version
+        with:
+          go-version: '1.25.5' # Specify your required Go version
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v8 # Use the golangci-lint action
+        with:
+          version: v2.7.2 # Specify the linter version
+          # Optional: additional arguments
+          args: --verbose
+
+      - name: Run go test
+        run: go test ./...
+
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -0,0 +1,48 @@
+version: "2"
+linters:
+  default: all
+  disable:
+    - wsl
+    - depguard
+    - ireturn
+  settings:
+    dupl:
+      threshold: 100
+    funlen:
+      lines: 100
+      statements: 50
+    goconst:
+      min-len: 2
+      min-occurrences: 2
+    gocyclo:
+      min-complexity: 15
+    lll:
+      line-length: 140
+    misspell:
+      locale: US
+    varnamelen:
+      min-name-length: 2
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gci
+    - gofmt
+    - gofumpt
+    - goimports
+    - golines
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
 # otel

-OpenTelemetry
+OpenTelemetry
+
+![Build Status](https://gitoa.ru/go-4devs/otel/actions/workflows/goaction.yml/badge.svg)
+[![Go Report Card](https://goreportcard.com/badge/gitoa.ru/go-4devs/otel)](https://goreportcard.com/report/gitoa.ru/go-4devs/otel)
+[![GoDoc](https://godoc.org/gitoa.ru/go-4devs/otel?status.svg)](http://godoc.org/gitoa.ru/go-4devs/otel)
+
--- a/errors.go
+++ b/errors.go
@@ -0,0 +1,8 @@
+package otel
+
+import "errors"
+
+var (
+	ErrMissingValue = errors.New("missing value")
+	ErrNotFound     = errors.New("not found")
+)
--- a/go.mod
+++ b/go.mod
@@ -1,17 +1,31 @@
 module gitoa.ru/go-4devs/otel

-go 1.22.2
+go 1.24.0

 require (
-	go.opentelemetry.io/otel v1.25.0
-	go.opentelemetry.io/otel/sdk v1.25.0
-	go.opentelemetry.io/otel/sdk/metric v1.25.0
+	go.opentelemetry.io/otel v1.39.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.39.0
+	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0
+	go.opentelemetry.io/otel/metric v1.39.0
+	go.opentelemetry.io/otel/sdk v1.39.0
+	go.opentelemetry.io/otel/sdk/metric v1.39.0
 )

 require (
-	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	go.opentelemetry.io/otel/metric v1.25.0 // indirect
-	go.opentelemetry.io/otel/trace v1.25.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/grpc v1.77.0 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,27 +1,59 @@
+github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
+github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 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/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
-github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 h1:NmZ1PKzSTQbuGHw9DGPFomqkkLWMC+vZCkfs+FHv1Vg=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3/go.mod h1:zQrxl1YP88HQlA6i9c63DSVPFklWpGX4OWAc9bFuaH4=
 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/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-go.opentelemetry.io/otel v1.25.0 h1:gldB5FfhRl7OJQbUHt/8s0a7cE8fbsPAtdpRaApKy4k=
-go.opentelemetry.io/otel v1.25.0/go.mod h1:Wa2ds5NOXEMkCmUou1WA7ZBfLTHWIsp034OVD7AO+Vg=
-go.opentelemetry.io/otel/metric v1.25.0 h1:LUKbS7ArpFL/I2jJHdJcqMGxkRdxpPHE0VU/D4NuEwA=
-go.opentelemetry.io/otel/metric v1.25.0/go.mod h1:rkDLUSd2lC5lq2dFNrX9LGAbINP5B7WBkC78RXCpH5s=
-go.opentelemetry.io/otel/sdk v1.25.0 h1:PDryEJPC8YJZQSyLY5eqLeafHtG+X7FWnf3aXMtxbqo=
-go.opentelemetry.io/otel/sdk v1.25.0/go.mod h1:oFgzCM2zdsxKzz6zwpTZYLLQsFwc+K0daArPdIhuxkw=
-go.opentelemetry.io/otel/sdk/metric v1.25.0 h1:7CiHOy08LbrxMAp4vWpbiPcklunUshVpAvGBrdDRlGw=
-go.opentelemetry.io/otel/sdk/metric v1.25.0/go.mod h1:LzwoKptdbBBdYfvtGCzGwk6GWMA3aUzBOwtQpR6Nz7o=
-go.opentelemetry.io/otel/trace v1.25.0 h1:tqukZGLwQYRIFtSQM2u2+yfMVTgGVeqRLPUYx1Dq6RM=
-go.opentelemetry.io/otel/trace v1.25.0/go.mod h1:hCCs70XM/ljO+BeQkyFnbK28SBIJ/Emuha+ccrCRT7I=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/otel v1.39.0 h1:8yPrr/S0ND9QEfTfdP9V+SiwT4E0G7Y5MO7p85nis48=
+go.opentelemetry.io/otel v1.39.0/go.mod h1:kLlFTywNWrFyEdH0oj2xK0bFYZtHRYUdv1NklR/tgc8=
+go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.39.0 h1:cEf8jF6WbuGQWUVcqgyWtTR0kOOAWY1DYZ+UhvdmQPw=
+go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.39.0/go.mod h1:k1lzV5n5U3HkGvTCJHraTAGJ7MqsgL1wrGwTj1Isfiw=
+go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0 h1:5gn2urDL/FBnK8OkCfD1j3/ER79rUuTYmCvlXBKeYL8=
+go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.39.0/go.mod h1:0fBG6ZJxhqByfFZDwSwpZGzJU671HkwpWaNe2t4VUPI=
+go.opentelemetry.io/otel/metric v1.39.0 h1:d1UzonvEZriVfpNKEVmHXbdf909uGTOQjA0HF0Ls5Q0=
+go.opentelemetry.io/otel/metric v1.39.0/go.mod h1:jrZSWL33sD7bBxg1xjrqyDjnuzTUB0x1nBERXd7Ftcs=
+go.opentelemetry.io/otel/sdk v1.39.0 h1:nMLYcjVsvdui1B/4FRkwjzoRVsMK8uL/cj0OyhKzt18=
+go.opentelemetry.io/otel/sdk v1.39.0/go.mod h1:vDojkC4/jsTJsE+kh+LXYQlbL8CgrEcwmt1ENZszdJE=
+go.opentelemetry.io/otel/sdk/metric v1.39.0 h1:cXMVVFVgsIf2YL6QkRF4Urbr/aMInf+2WKg+sEJTtB8=
+go.opentelemetry.io/otel/sdk/metric v1.39.0/go.mod h1:xq9HEVH7qeX69/JnwEfp6fVq5wosJsY1mt4lLfYdVew=
+go.opentelemetry.io/otel/trace v1.39.0 h1:2d2vfpEDmCJ5zVYz7ijaJdOF59xLomrvj7bjt6/qCJI=
+go.opentelemetry.io/otel/trace v1.39.0/go.mod h1:88w4/PnZSazkGzz/w84VHpQafiU4EtqqlVdxWy+rNOA=
+go.opentelemetry.io/proto/otlp v1.9.0 h1:l706jCMITVouPOqEnii2fIAuO3IVGBRPV5ICjceRb/A=
+go.opentelemetry.io/proto/otlp v1.9.0/go.mod h1:xE+Cx5E/eEHw+ISFkwPLwCZefwVjY+pqKg1qcK03+/4=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
+gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
+gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
+google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 h1:fCvbg86sFXwdrl5LgVcTEvNC+2txB5mgROGmRL5mrls=
+google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:+rXWjjaukWZun3mLfjmVnQi18E1AsFbDN9QdJ5YXLto=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 h1:gRkg/vSppuSQoDjxyiGfN4Upv/h/DQmIR10ZU8dh4Ww=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
+google.golang.org/grpc v1.77.0 h1:wVVY6/8cGA6vvffn+wWK5ToddbgdU3d8MNENr4evgXM=
+google.golang.org/grpc v1.77.0/go.mod h1:z0BY1iVj0q8E1uSQCjL9cppRj+gnZjzDnzV0dHhrNig=
+google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
+google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/meter/config.go
+++ b/meter/config.go
@@ -0,0 +1,8 @@
+package meter
+
+type Config interface {
+	Endpoint() string
+	Attributes() []string
+	ServiceName() string
+	HostName() string
+}
--- a/meter/grpc/provider.go
+++ b/meter/grpc/provider.go
@@ -0,0 +1,31 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+
+	"gitoa.ru/go-4devs/otel/meter"
+	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
+	"go.opentelemetry.io/otel/metric"
+)
+
+func Insecure(
+	ctx context.Context,
+	cfg meter.Config,
+	opts ...meter.Option,
+) (metric.MeterProvider, error) {
+	exp, err := otlpmetricgrpc.New(ctx,
+		otlpmetricgrpc.WithEndpoint(cfg.Endpoint()),
+		otlpmetricgrpc.WithInsecure(),
+	)
+	if err != nil {
+		return nil, fmt.Errorf("create grpc export:%w", err)
+	}
+
+	prov, err := meter.ByExporter(ctx, exp, cfg, opts...)
+	if err != nil {
+		return nil, fmt.Errorf("%w", err)
+	}
+
+	return prov, nil
+}
--- a/meter/option.go
+++ b/meter/option.go
@@ -0,0 +1,120 @@
+package meter
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"strings"
+
+	"gitoa.ru/go-4devs/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/sdk/metric"
+	"go.opentelemetry.io/otel/sdk/resource"
+	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
+)
+
+const cfgAttr = 2
+
+type Option func(context.Context, *resource.Resource) (*resource.Resource, error)
+
+func WithAttributes(attrs ...attribute.KeyValue) Option {
+	return func(ctx context.Context, in *resource.Resource) (*resource.Resource, error) {
+		res, err := resource.New(ctx, resource.WithAttributes(attrs...))
+		if err != nil {
+			return nil, fmt.Errorf("create attr:%w", err)
+		}
+
+		res, err = resource.Merge(in, res)
+		if err != nil {
+			return nil, fmt.Errorf("merge attrs:%w", err)
+		}
+
+		return res, nil
+	}
+}
+
+func WithExtra(opts ...resource.Option) Option {
+	return func(ctx context.Context, in *resource.Resource) (*resource.Resource, error) {
+		res, err := resource.New(ctx, opts...)
+		if err != nil {
+			return nil, fmt.Errorf("create extra:%w", err)
+		}
+
+		res, err = resource.Merge(in, res)
+		if err != nil {
+			return nil, fmt.Errorf("merge extra:%w", err)
+		}
+
+		return res, nil
+	}
+}
+
+func Configure(ctx context.Context, cfg Config, opts ...Option) (metric.Option, error) {
+	var err error
+
+	res := resource.Empty()
+
+	attrs := make([]attribute.KeyValue, 0, len(cfg.Attributes())+cfgAttr)
+
+	if host := cfg.HostName(); host != "" {
+		attrs = append(attrs, semconv.HostName(host))
+	}
+
+	if service := cfg.ServiceName(); service != "" {
+		attrs = append(attrs, semconv.ServiceName(service))
+	}
+
+	if pairs := cfg.Attributes(); len(pairs) > 0 {
+		kvs, err := toKeyValues(pairs)
+		if err != nil {
+			return nil, fmt.Errorf("attrs:%w", err)
+		}
+
+		attrs = append(attrs, kvs...)
+	}
+
+	if len(attrs) > 0 {
+		res, err = resource.New(ctx, resource.WithAttributes(attrs...))
+		if err != nil {
+			return nil, fmt.Errorf("create config:%w", err)
+		}
+	}
+
+	for idx, opt := range opts {
+		res, err = opt(ctx, res)
+		if err != nil {
+			return nil, fmt.Errorf("option[%d]:%w", idx, err)
+		}
+	}
+
+	return metric.WithResource(res), nil
+}
+
+func toKeyValues(pairs []string) ([]attribute.KeyValue, error) {
+	attrs := make([]attribute.KeyValue, 0, len(pairs))
+	invalid := make([]string, 0, len(pairs))
+
+	for _, p := range pairs {
+		key, value, found := strings.Cut(p, "=")
+		if !found {
+			invalid = append(invalid, p)
+
+			continue
+		}
+
+		key = strings.TrimSpace(key)
+
+		val, err := url.PathUnescape(strings.TrimSpace(value))
+		if err != nil {
+			return nil, fmt.Errorf("unescape[%v]:%w", key, err)
+		}
+
+		attrs = append(attrs, attribute.String(key, val))
+	}
+
+	if len(invalid) > 0 {
+		return nil, fmt.Errorf("%w: %v", otel.ErrMissingValue, invalid)
+	}
+
+	return attrs, nil
+}
--- a/meter/provider.go
+++ b/meter/provider.go
@@ -3,113 +3,67 @@ package meter
 import (
 	"context"
 	"fmt"
-	"os"
-	"path/filepath"

-	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/sdk/metric"
-	"go.opentelemetry.io/otel/sdk/resource"
-	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
+	"gitoa.ru/go-4devs/otel"
+	sotel "go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/metric"
+	sm "go.opentelemetry.io/otel/sdk/metric"
 )

-func WithServiceName(name string) func(context.Context, *Option) error {
-	return func(_ context.Context, o *Option) error {
-		o.serviceName = name
+type Factory func(ctx context.Context, cfg Config, op ...Option) (metric.MeterProvider, error)

-		return nil
+func WithFacory(name string, fn Factory) func(*Providers) {
+	return func(p *Providers) {
+		p.provs[name] = fn
 	}
 }

-func WithAttributes(attrs ...attribute.KeyValue) func(context.Context, *Option) error {
-	return func(_ context.Context, o *Option) error {
-		o.attributes = attrs
-
-		return nil
-	}
-}
-
-func WithExtraResource(opts ...resource.Option) func(context.Context, *Option) error {
-	return func(_ context.Context, o *Option) error {
-		o.extraResource = opts
-
-		return nil
-	}
-}
-
-func WithReader(reader metric.Reader) func(context.Context, *Option) error {
-	return func(_ context.Context, o *Option) error {
-		o.reader = reader
-
-		return nil
-	}
-}
-
-type Option struct {
-	reader        metric.Reader
-	serviceName   string
-	attributes    []attribute.KeyValue
-	extraResource []resource.Option
-}
-
-func newOptions(ctx context.Context, opts ...func(context.Context, *Option) error) (Option, error) {
-	option := Option{
-		serviceName: filepath.Base(os.Args[0]),
-		extraResource: []resource.Option{
-			resource.WithOS(),
-			resource.WithProcess(),
-			resource.WithContainer(),
-			resource.WithHost(),
-		},
+func Provider(opts ...func(*Providers)) Providers {
+	provs := Providers{
+		provs: make(map[string]Factory, len(opts)),
 	}

-	for idx, opt := range opts {
-		if err := opt(ctx, &option); err != nil {
-			return option, fmt.Errorf("option[%d]:%w", idx, err)
-		}
+	for _, opt := range opts {
+		opt(&provs)
 	}

-	return option, nil
+	return provs
 }

-func New(ctx context.Context, opts ...func(context.Context, *Option) error) (*metric.MeterProvider, error) {
-	option, err := newOptions(ctx, opts...)
+type Providers struct {
+	provs map[string]Factory
+}
+
+func (p Providers) Init(
+	ctx context.Context,
+	cfg Config,
+	opts ...Option,
+) (metric.MeterProvider, error) {
+	fn, ok := p.provs[cfg.Endpoint()]
+	if !ok {
+		return nil, fmt.Errorf("provider[%v]:%w", cfg.Endpoint(), otel.ErrNotFound)
+	}
+
+	prov, err := fn(ctx, cfg, opts...)
+	if err != nil {
+		return nil, fmt.Errorf("%w", err)
+	}
+
+	sotel.SetMeterProvider(prov)
+
+	return prov, nil
+}
+
+func ByExporter(
+	ctx context.Context,
+	exp sm.Exporter,
+	cfg Config,
+	opts ...Option,
+) (metric.MeterProvider, error) {
+	opt, err := Configure(ctx, cfg, opts...)
 	if err != nil {
 		return nil, fmt.Errorf("configure:%w", err)
 	}

-	extraResources, eerr := resource.New(
-		ctx,
-		append(
-			option.extraResource,
-			resource.WithAttributes(
-				append(
-					option.attributes,
-					semconv.ServiceName(option.serviceName),
-				)...,
-			),
-		)...,
-	)
-	if eerr != nil {
-		return nil, fmt.Errorf("create extra resource: %w", eerr)
-	}
-
-	res, rerr := resource.Merge(
-		resource.Default(),
-		extraResources,
-	)
-	if rerr != nil {
-		return nil, fmt.Errorf("merge resource: %w", rerr)
-	}
-
-	provOption := make([]metric.Option, 0, 2)
-
-	if option.reader != nil {
-		provOption = append(provOption, metric.WithReader(option.reader))
-	}
-
-	meterProvider := metric.NewMeterProvider(append(provOption, metric.WithResource(res))...)
-	otel.SetMeterProvider(meterProvider)
-
-	return meterProvider, nil
+	return sm.NewMeterProvider(opt, sm.WithReader(sm.NewPeriodicReader(exp))), nil
 }
--- a/meter/reader/grpc/go.mod
+++ b/meter/reader/grpc/go.mod
@@ -1,28 +0,0 @@
-module gitoa.ru/go-4devs/otel/meter/reader/grpc
-
-go 1.22.2
-
-require (
-	gitoa.ru/go-4devs/otel v0.0.1
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.25.0
-	go.opentelemetry.io/otel/sdk/metric v1.25.0
-)
-
-require (
-	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
-	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 // indirect
-	go.opentelemetry.io/otel v1.25.0 // indirect
-	go.opentelemetry.io/otel/metric v1.25.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.25.0 // indirect
-	go.opentelemetry.io/otel/trace v1.25.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.1.0 // indirect
-	golang.org/x/net v0.23.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda // indirect
-	google.golang.org/grpc v1.63.0 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
-)
--- a/meter/reader/grpc/go.sum
+++ b/meter/reader/grpc/go.sum
@@ -1,51 +0,0 @@
-github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
-github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
-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/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
-github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
-github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
-github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 h1:Wqo399gCIufwto+VfwCSvsnfGpF/w5E9CNxSwbpD6No=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0/go.mod h1:qmOFXW2epJhM0qSnUUYpldc7gVz2KMQwJ/QYCDIa7XU=
-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/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-gitoa.ru/go-4devs/otel v0.0.1 h1:APzE5Wcgd1hvdkgdE99Pl6kly4S4oBwFP/9skFUr9LA=
-gitoa.ru/go-4devs/otel v0.0.1/go.mod h1:dR1KNslYH61GWI6zOUV/+OHwQPlIvR8U5kSA5UAHo+o=
-go.opentelemetry.io/otel v1.25.0 h1:gldB5FfhRl7OJQbUHt/8s0a7cE8fbsPAtdpRaApKy4k=
-go.opentelemetry.io/otel v1.25.0/go.mod h1:Wa2ds5NOXEMkCmUou1WA7ZBfLTHWIsp034OVD7AO+Vg=
-go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.25.0 h1:hDKnobznDpcdTlNzO0S/owRB8tyVr1OoeZZhDoqY+Cs=
-go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.25.0/go.mod h1:kUDQaUs1h8iTIHbQTk+iJRiUvSfJYMMKTtMCaiVu7B0=
-go.opentelemetry.io/otel/metric v1.25.0 h1:LUKbS7ArpFL/I2jJHdJcqMGxkRdxpPHE0VU/D4NuEwA=
-go.opentelemetry.io/otel/metric v1.25.0/go.mod h1:rkDLUSd2lC5lq2dFNrX9LGAbINP5B7WBkC78RXCpH5s=
-go.opentelemetry.io/otel/sdk v1.25.0 h1:PDryEJPC8YJZQSyLY5eqLeafHtG+X7FWnf3aXMtxbqo=
-go.opentelemetry.io/otel/sdk v1.25.0/go.mod h1:oFgzCM2zdsxKzz6zwpTZYLLQsFwc+K0daArPdIhuxkw=
-go.opentelemetry.io/otel/sdk/metric v1.25.0 h1:7CiHOy08LbrxMAp4vWpbiPcklunUshVpAvGBrdDRlGw=
-go.opentelemetry.io/otel/sdk/metric v1.25.0/go.mod h1:LzwoKptdbBBdYfvtGCzGwk6GWMA3aUzBOwtQpR6Nz7o=
-go.opentelemetry.io/otel/trace v1.25.0 h1:tqukZGLwQYRIFtSQM2u2+yfMVTgGVeqRLPUYx1Dq6RM=
-go.opentelemetry.io/otel/trace v1.25.0/go.mod h1:hCCs70XM/ljO+BeQkyFnbK28SBIJ/Emuha+ccrCRT7I=
-go.opentelemetry.io/proto/otlp v1.1.0 h1:2Di21piLrCqJ3U3eXGCTPHE9R8Nh+0uglSnOyxikMeI=
-go.opentelemetry.io/proto/otlp v1.1.0/go.mod h1:GpBHCBWiqvVLDqmHZsoMM3C5ySeKTC7ej/RNTae6MdY=
-golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs=
-golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-google.golang.org/genproto v0.0.0-20240227224415-6ceb2ff114de h1:F6qOa9AZTYJXOUEr4jDysRDLrm4PHePlge4v4TGAlxY=
-google.golang.org/genproto v0.0.0-20240227224415-6ceb2ff114de/go.mod h1:VUhTRKeHn9wwcdrk73nvdC9gF178Tzhmt/qyaFcPLSo=
-google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de h1:jFNzHPIeuzhdRwVhbZdiym9q0ory/xY3sA+v2wPg8I0=
-google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de/go.mod h1:5iCWqnniDlqZHrd3neWVTOwvh/v6s3232omMecelax8=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda h1:LI5DOvAxUPMv/50agcLLoo+AdWc1irS9Rzz4vPuD1V4=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda/go.mod h1:WtryC6hu0hhx87FDGxWCDptyssuo68sk10vYjF+T9fY=
-google.golang.org/grpc v1.63.0 h1:WjKe+dnvABXyPJMD7KDNLxtoGk5tgk+YFWN6cBWjZE8=
-google.golang.org/grpc v1.63.0/go.mod h1:WAX/8DgncnokcFUldAxq7GeB5DXHDbMF+lLvDomNkRA=
-google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-google.golang.org/protobuf v1.33.0/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=
--- a/meter/reader/grpc/reader.go
+++ b/meter/reader/grpc/reader.go
@@ -1,25 +0,0 @@
-package grpc
-
-import (
-	"context"
-	"fmt"
-
-	"gitoa.ru/go-4devs/otel/meter"
-	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
-	"go.opentelemetry.io/otel/sdk/metric"
-)
-
-func With(endpoint string, options ...otlpmetricgrpc.Option) func(context.Context, *meter.Option) error {
-	return func(ctx context.Context, o *meter.Option) error {
-		if len(options) == 0 {
-			options = append(options, otlpmetricgrpc.WithInsecure(), otlpmetricgrpc.WithEndpoint(endpoint))
-		}
-
-		exp, err := otlpmetricgrpc.New(ctx, options...)
-		if err != nil {
-			return fmt.Errorf("create otlpmetricgrpc: %w", err)
-		}
-
-		return meter.WithReader(metric.NewPeriodicReader(exp))(ctx, o)
-	}
-}
--- a/meter/stdout/provider.go
+++ b/meter/stdout/provider.go
@@ -0,0 +1,28 @@
+package stdout
+
+import (
+	"context"
+	"fmt"
+
+	"gitoa.ru/go-4devs/otel/meter"
+	"go.opentelemetry.io/otel/exporters/stdout/stdoutmetric"
+	"go.opentelemetry.io/otel/metric"
+)
+
+func New(
+	ctx context.Context,
+	cfg meter.Config,
+	opts ...meter.Option,
+) (metric.MeterProvider, error) {
+	exp, err := stdoutmetric.New()
+	if err != nil {
+		return nil, fmt.Errorf("create stdout:%w", err)
+	}
+
+	prov, err := meter.ByExporter(ctx, exp, cfg, opts...)
+	if err != nil {
+		return nil, fmt.Errorf("%w", err)
+	}
+
+	return prov, nil
+}