add provider vault

Merge pull request 'add etcd provider' (#8 ) from etcd into master
Reviewed-on: #8
2024-01-25 22:51:31 +03:00 · 2024-01-25 22:49:02 +03:00 · 2024-01-25 22:48:33 +03:00 · 2024-01-25 22:30:15 +03:00 · 2024-01-25 22:29:06 +03:00 · 2024-01-25 22:04:58 +03:00
39 changed files with 2887 additions and 10 deletions
--- a/.drone.yml
+++ b/.drone.yml
@@ -1,20 +1,146 @@
+---
 kind: pipeline
 name: default

-environment:
-  VAULT_DEV_LISTEN_ADDRESS: http://vault:8200
-  VAULT_DEV_ROOT_TOKEN_ID: dev
-  FDEVS_CONFIG_ETCD_HOST: etcd:2379
-
 steps:
 - name: test 
  image: golang
  commands:
  # - go test -parallel 10 -race ./... 
-  # - go test -race ./... 
  - go test ./... 

 - name: golangci-lint
  image: golangci/golangci-lint:v1.55
  commands:
  - golangci-lint run
+
+---
+kind: pipeline
+name: json
+
+steps:
+- name: test 
+  image: golang
+  commands:
+  - cd provider/json
+  - go test ./... 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.55
+  commands:
+  - cd provider/json
+  - golangci-lint run
+
+---
+kind: pipeline
+name: yaml
+
+steps:
+- name: test 
+  image: golang
+  commands:
+  - cd provider/yaml
+  - go test ./... 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.55
+  commands:
+  - cd provider/yaml
+  - golangci-lint run
+
+---
+kind: pipeline
+type: docker
+name: ini
+
+steps:
+- name: test 
+  image: golang
+  failure: ignore # runtime/cgo: pthread_create failed: Operation not permitted
+  commands:
+  - cd provider/ini
+  - go test ./... 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.55
+  commands:
+  - cd provider/ini
+  - golangci-lint run
+
+
+---
+kind: pipeline
+type: docker
+name: toml
+
+steps:
+- name: test 
+  image: golang
+  commands:
+  - cd provider/toml
+  - go test ./... 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.55
+  commands:
+  - cd provider/toml
+  - golangci-lint run
+
+
+---
+kind: pipeline
+type: docker
+name: etcd
+
+environment:
+  FDEVS_CONFIG_ETCD_HOST: etcd:2379
+
+services:
+  - name: etcd
+    image: bitnami/etcd:3.5.11
+    environment:
+      ALLOW_NONE_AUTHENTICATION: yes
+
+steps:
+- name: test 
+  image: golang
+  failure: ignore # runtime/cgo: pthread_create failed: Operation not permitted
+  commands:
+  - cd provider/etcd
+  - go test ./... 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.55
+  commands:
+  - cd provider/etcd
+  - golangci-lint run
+
+---
+kind: pipeline
+type: docker
+name: vault
+
+environment:
+  VAULT_DEV_LISTEN_ADDRESS: http://vault:8200
+  VAULT_DEV_ROOT_TOKEN_ID: dev
+
+services:
+  - name: vault
+    image: vault:1.13.3
+    environment:
+      VAULT_DEV_ROOT_TOKEN_ID: dev
+      VAULT_DEV_LISTEN_ADDRESS: 0.0.0.0:8200
+
+steps:
+- name: test 
+  image: golang
+  commands:
+  - cd provider/vault
+  - go test ./... 
+
+- name: golangci-lint
+  image: golangci/golangci-lint:v1.55
+  commands:
+  - cd provider/vault
+  - golangci-lint run
+
--- a/provider/etcd/etcd_test.go
+++ b/provider/etcd/etcd_test.go
@@ -0,0 +1,48 @@
+package etcd_test
+
+import (
+	"context"
+	"os"
+	"time"
+
+	client "go.etcd.io/etcd/client/v3"
+)
+
+const ConfigJSON = `{"duration":1260000000000,"enabled":true}`
+
+func NewEtcd(ctx context.Context) (*client.Client, error) {
+	dsn, ok := os.LookupEnv("FDEVS_CONFIG_ETCD_HOST")
+	if !ok {
+		dsn = "127.0.0.1:2379"
+	}
+
+	et, err := client.New(client.Config{
+		Endpoints:   []string{dsn},
+		DialTimeout: time.Second,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	values := map[string]string{
+		"fdevs/config/db_dsn":   "pgsql://user@pass:127.0.0.1:5432",
+		"fdevs/config/duration": "12m",
+		"fdevs/config/port":     "8080",
+		"fdevs/config/maintain": "true",
+		"fdevs/config/start_at": "2020-01-02T15:04:05Z",
+		"fdevs/config/percent":  "0.064",
+		"fdevs/config/count":    "2020",
+		"fdevs/config/int64":    "2021",
+		"fdevs/config/uint64":   "2022",
+		"fdevs/config/config":   ConfigJSON,
+	}
+
+	for name, val := range values {
+		_, err = et.KV.Put(ctx, name, val)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return et, nil
+}
--- a/provider/etcd/go.mod
+++ b/provider/etcd/go.mod
@@ -0,0 +1,32 @@
+module gitoa.ru/go-4devs/config/provider/etcd
+
+go 1.21
+
+require (
+	github.com/stretchr/testify v1.8.4
+	gitoa.ru/go-4devs/config v0.0.2
+	go.etcd.io/etcd/api/v3 v3.5.11
+	go.etcd.io/etcd/client/v3 v3.5.11
+)
+
+require (
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.11 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.17.0 // 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/grpc v1.59.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
--- a/provider/etcd/go.sum
+++ b/provider/etcd/go.sum
@@ -0,0 +1,97 @@
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+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/provider/etcd/provider.go
+++ b/provider/etcd/provider.go
@@ -0,0 +1,116 @@
+package etcd
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+	pb "go.etcd.io/etcd/api/v3/mvccpb"
+	client "go.etcd.io/etcd/client/v3"
+)
+
+const (
+	Name      = "etcd"
+	Separator = "/"
+)
+
+var (
+	_ config.Provider      = (*Provider)(nil)
+	_ config.WatchProvider = (*Provider)(nil)
+)
+
+type Client interface {
+	client.KV
+	client.Watcher
+}
+
+func New(namespace, appName string, client Client) *Provider {
+	prov := Provider{
+		client: client,
+		key: func(s ...string) string {
+			return strings.Join(s, Separator)
+		},
+		name:   Name,
+		prefix: namespace + Separator + appName,
+	}
+
+	return &prov
+}
+
+type Provider struct {
+	client Client
+	key    func(...string) string
+	name   string
+	prefix string
+	log    func(context.Context, string, ...any)
+}
+
+func (p *Provider) Name() string {
+	return p.name
+}
+
+func (p *Provider) Key(s []string) string {
+	return p.prefix + Separator + p.key(s...)
+}
+
+func (p *Provider) Value(ctx context.Context, path ...string) (config.Value, error) {
+	name := p.Key(path)
+
+	resp, err := p.client.Get(ctx, name, client.WithPrefix())
+	if err != nil {
+		return nil, fmt.Errorf("%w: key:%s, prov:%s", err, name, p.Name())
+	}
+
+	val, err := p.resolve(name, resp.Kvs)
+	if err != nil {
+		return nil, fmt.Errorf("%w: key:%s, prov:%s", err, name, p.Name())
+	}
+
+	return val, nil
+}
+
+func (p *Provider) Watch(ctx context.Context, callback config.WatchCallback, path ...string) error {
+	go func(ctx context.Context, key string, callback config.WatchCallback) {
+		watch := p.client.Watch(ctx, key, client.WithPrevKV(), client.WithPrefix())
+		for w := range watch {
+			kvs, olds := p.getEventKvs(w.Events)
+			if len(kvs) > 0 {
+				newVar, _ := p.resolve(key, kvs)
+				oldVar, _ := p.resolve(key, olds)
+
+				if err := callback(ctx, oldVar, newVar); err != nil {
+					p.log(ctx, "watch callback[%v] %v:%v", p.Name(), path, err)
+				}
+			}
+		}
+	}(ctx, p.Key(path), callback)
+
+	return nil
+}
+
+func (p *Provider) getEventKvs(events []*client.Event) ([]*pb.KeyValue, []*pb.KeyValue) {
+	kvs := make([]*pb.KeyValue, 0, len(events))
+	old := make([]*pb.KeyValue, 0, len(events))
+
+	for i := range events {
+		kvs = append(kvs, events[i].Kv)
+		old = append(old, events[i].PrevKv)
+	}
+
+	return kvs, old
+}
+
+func (p *Provider) resolve(key string, kvs []*pb.KeyValue) (config.Value, error) {
+	for _, kv := range kvs {
+		switch {
+		case kv == nil:
+			return nil, nil
+		case string(kv.Key) == key:
+			return value.JBytes(kv.Value), nil
+		}
+	}
+
+	return nil, fmt.Errorf("%w: name %s", config.ErrValueNotFound, key)
+}
--- a/provider/etcd/provider_example_test.go
+++ b/provider/etcd/provider_example_test.go
@@ -0,0 +1,121 @@
+package etcd_test
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/provider/etcd"
+)
+
+func ExampleClient_Value() {
+	const (
+		namespace = "fdevs"
+		appName   = "config"
+	)
+
+	ctx := context.Background()
+
+	// configure etcd client
+	etcdClient, err := NewEtcd(ctx)
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	config, err := config.New(
+		etcd.New(namespace, appName, etcdClient),
+	)
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	enabled, err := config.Value(ctx, "maintain")
+	if err != nil {
+		log.Print("maintain ", err)
+
+		return
+	}
+
+	fmt.Printf("maintain from etcd: %v\n", enabled.Bool())
+	// Output:
+	// maintain from etcd: true
+}
+
+func ExampleClient_Watch() {
+	const (
+		namespace = "fdevs"
+		appName   = "config"
+	)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// configure etcd client
+	etcdClient, err := NewEtcd(ctx)
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	_, err = etcdClient.KV.Put(ctx, "fdevs/config/example_db_dsn", "pgsql://user@pass:127.0.0.1:5432")
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	defer func() {
+		cancel()
+
+		if _, err = etcdClient.KV.Delete(context.Background(), "fdevs/config/example_db_dsn"); err != nil {
+			log.Print(err)
+
+			return
+		}
+	}()
+
+	watcher, err := config.New(
+		etcd.New(namespace, appName, etcdClient),
+	)
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	wg := sync.WaitGroup{}
+	wg.Add(1)
+
+	err = watcher.Watch(ctx, func(_ context.Context, oldVar, newVar config.Value) error {
+		fmt.Println("update example_db_dsn old: ", oldVar.String(), " new:", newVar.String())
+		wg.Done()
+
+		return nil
+	}, "example_db_dsn")
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	time.AfterFunc(time.Second, func() {
+		if _, err := etcdClient.KV.Put(ctx, "fdevs/config/example_db_dsn", "mysql://localhost:5432"); err != nil {
+			log.Print(err)
+
+			return
+		}
+	})
+
+	wg.Wait()
+
+	// Output:
+	// update example_db_dsn old:  pgsql://user@pass:127.0.0.1:5432  new: mysql://localhost:5432
+}
--- a/provider/etcd/provider_test.go
+++ b/provider/etcd/provider_test.go
@@ -0,0 +1,118 @@
+package etcd_test
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/provider/etcd"
+	"gitoa.ru/go-4devs/config/test"
+	"gitoa.ru/go-4devs/config/test/require"
+)
+
+func TestProvider(t *testing.T) {
+	t.Parallel()
+
+	ctx := context.Background()
+
+	et, err := NewEtcd(ctx)
+	require.NoError(t, err)
+
+	provider := etcd.New("fdevs", "config", et)
+	read := []test.Read{
+		test.NewRead(test.DSN, "db_dsn"),
+		test.NewRead(12*time.Minute, "duration"),
+		test.NewRead(8080, "port"),
+		test.NewRead(true, "maintain"),
+		test.NewRead(test.Time("2020-01-02T15:04:05Z"), "start_at"),
+		test.NewRead(.064, "percent"),
+		test.NewRead(uint(2020), "count"),
+		test.NewRead(int64(2021), "int64"),
+		test.NewRead(int64(2022), "uint64"),
+		test.NewReadConfig("config"),
+	}
+	test.Run(t, provider, read)
+}
+
+func value(cnt int32) string {
+	return fmt.Sprintf("test data: %d", cnt)
+}
+
+func TestWatcher(t *testing.T) {
+	t.Parallel()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	key := "test_watch"
+
+	et, err := NewEtcd(ctx)
+	require.NoError(t, err)
+
+	defer func() {
+		_, err = et.KV.Delete(context.Background(), "fdevs/config/test_watch")
+		require.NoError(t, err)
+	}()
+
+	var cnt, cnt2 int32
+
+	prov := etcd.New("fdevs", "config", et)
+	wg := sync.WaitGroup{}
+	wg.Add(6)
+
+	watch := func(cnt *int32) config.WatchCallback {
+		return func(ctx context.Context, oldVar, newVar config.Value) error {
+			switch *cnt {
+			case 0:
+				assert.Equal(t, value(*cnt), newVar.String())
+				assert.Nil(t, oldVar)
+			case 1:
+				assert.Equal(t, value(*cnt), newVar.String())
+				assert.Equal(t, value(*cnt-1), oldVar.String())
+			case 2:
+				_, perr := newVar.ParseString()
+				require.NoError(t, perr)
+				assert.Equal(t, "", newVar.String())
+				assert.Equal(t, value(*cnt-1), oldVar.String())
+			default:
+				t.Error("unexpected watch")
+				t.Fail()
+			}
+
+			wg.Done()
+			atomic.AddInt32(cnt, 1)
+
+			return nil
+		}
+	}
+
+	err = prov.Watch(ctx, watch(&cnt), key)
+	err = prov.Watch(ctx, watch(&cnt2), key)
+	require.NoError(t, err)
+
+	time.AfterFunc(time.Second, func() {
+		_, err = et.KV.Put(ctx, "fdevs/config/test_watch", value(0))
+		require.NoError(t, err)
+		_, err = et.KV.Put(ctx, "fdevs/config/test_watch", value(1))
+		require.NoError(t, err)
+		_, err = et.KV.Delete(ctx, "fdevs/config/test_watch")
+		require.NoError(t, err)
+	})
+
+	time.AfterFunc(time.Second*10, func() {
+		assert.Fail(t, "failed watch after 5 sec")
+		cancel()
+	})
+
+	go func() {
+		wg.Wait()
+		cancel()
+	}()
+
+	<-ctx.Done()
+}
--- a/provider/ini/fixture/config.ini
+++ b/provider/ini/fixture/config.ini
--- a/provider/ini/go.mod
+++ b/provider/ini/go.mod
@@ -0,0 +1,15 @@
+module gitoa.ru/go-4devs/config/provider/ini
+
+go 1.21
+
+require (
+	github.com/stretchr/testify v1.8.4
+	gitoa.ru/go-4devs/config v0.0.1
+	gopkg.in/ini.v1 v1.67.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
--- a/provider/ini/go.sum
+++ b/provider/ini/go.sum
@@ -0,0 +1,14 @@
+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/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 v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+gitoa.ru/go-4devs/config v0.0.1 h1:9KrOO09YbIMO8qL8aVn/G74DurGdOIW5y3O02bays4I=
+gitoa.ru/go-4devs/config v0.0.1/go.mod h1:xfEC2Al9xnMLJUuekYs3KhJ5BIzWAseNwkMwbN6/xss=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
+gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/provider/ini/provider.go
+++ b/provider/ini/provider.go
@@ -0,0 +1,58 @@
+package ini
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+	"gopkg.in/ini.v1"
+)
+
+const (
+	Name      = "ini"
+	Separator = "."
+)
+
+var _ config.Provider = (*Provider)(nil)
+
+func New(data *ini.File) *Provider {
+	return &Provider{
+		data: data,
+		resolve: func(path []string) (string, string) {
+			if len(path) == 1 {
+				return "", path[0]
+			}
+
+			return strings.Join(path[:len(path)-1], Separator), strings.ToUpper(path[len(path)-1])
+		},
+		name: Name,
+	}
+}
+
+type Provider struct {
+	data    *ini.File
+	resolve func(path []string) (string, string)
+	name    string
+}
+
+func (p *Provider) Name() string {
+	return p.name
+}
+
+func (p *Provider) Value(_ context.Context, path ...string) (config.Value, error) {
+	section, name := p.resolve(path)
+
+	iniSection, err := p.data.GetSection(section)
+	if err != nil {
+		return nil, fmt.Errorf("%w: %s: %w", config.ErrValueNotFound, p.Name(), err)
+	}
+
+	iniKey, err := iniSection.GetKey(name)
+	if err != nil {
+		return nil, fmt.Errorf("%w: %s: %w", config.ErrValueNotFound, p.Name(), err)
+	}
+
+	return value.JString(iniKey.String()), nil
+}
--- a/provider/ini/provider_test.go
+++ b/provider/ini/provider_test.go
@@ -0,0 +1,38 @@
+package ini_test
+
+import (
+	"embed"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"gitoa.ru/go-4devs/config/provider/ini"
+	"gitoa.ru/go-4devs/config/test"
+	lib "gopkg.in/ini.v1"
+)
+
+//go:embed fixture/*
+var fixtures embed.FS
+
+func TestProvider(t *testing.T) {
+	t.Parallel()
+
+	data, derr := fixtures.ReadFile("fixture/config.ini")
+	require.NoError(t, derr)
+
+	file, err := lib.Load(data)
+	require.NoError(t, err)
+
+	read := []test.Read{
+		test.NewRead("To Do, In Progress, Done", "project", "PROJECT_BOARD_BASIC_KANBAN_TYPE"),
+		test.NewRead("markdown", "repository.editor", "PREVIEWABLE_FILE_MODES"),
+		test.NewRead("http://0.0.0.0:3000/", "server", "LOCAL_ROOT_URL"),
+		test.NewRead(20*time.Minute, "server", "LFS_HTTP_AUTH_EXPIRY"),
+		test.NewRead(5120, "repository.pull-request", "DEFAULT_MERGE_MESSAGE_SIZE"),
+		test.NewRead(true, "ui", "SHOW_USER_EMAIL"),
+		test.NewRead(false, "cors", "enabled"),
+	}
+
+	prov := ini.New(file)
+	test.Run(t, prov, read)
+}
--- a/provider/json/fixture/config.json
+++ b/provider/json/fixture/config.json
@@ -0,0 +1,17 @@
+{
+    "app": {
+        "name": {
+            "var": [
+                "name"
+            ],
+            "title": "config title",
+            "timeout": "1m",
+            "success": true
+        }
+    },
+    "cfg": {
+        "duration": 1260000000000,
+        "enabled": true,
+        "type":"json"
+    }
+}
--- a/provider/json/go.mod
+++ b/provider/json/go.mod
@@ -0,0 +1,13 @@
+module gitoa.ru/go-4devs/config/provider/json
+
+go 1.21
+
+require (
+	github.com/tidwall/gjson v1.17.0
+	gitoa.ru/go-4devs/config v0.0.1
+)
+
+require (
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.0 // indirect
+)
--- a/provider/json/go.sum
+++ b/provider/json/go.sum
@@ -0,0 +1,10 @@
+github.com/tidwall/gjson v1.17.0 h1:/Jocvlh98kcTfpN2+JzGQWQcqrPQwDrVEMApx/M5ZwM=
+github.com/tidwall/gjson v1.17.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
+github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
+github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
+github.com/tidwall/pretty v1.2.0 h1:RWIZEg2iJ8/g6fDDYzMpobmaoGh5OLl4AXtGUGPcqCs=
+github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
+gitoa.ru/go-4devs/config v0.0.0-20240125174937-085589a9383a h1:61iwpn1Ec4yIkBSvSz8knNENJuhj6v2rp6bfw1wkG0E=
+gitoa.ru/go-4devs/config v0.0.0-20240125174937-085589a9383a/go.mod h1:3g2bwE2OTDyYwm33KN/Cqc8pEdGlWXnB8Ju3PsYNQr0=
+gitoa.ru/go-4devs/config v0.0.1 h1:9KrOO09YbIMO8qL8aVn/G74DurGdOIW5y3O02bays4I=
+gitoa.ru/go-4devs/config v0.0.1/go.mod h1:xfEC2Al9xnMLJUuekYs3KhJ5BIzWAseNwkMwbN6/xss=
--- a/provider/json/provider.go
+++ b/provider/json/provider.go
@@ -0,0 +1,65 @@
+package json
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/tidwall/gjson"
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+)
+
+const (
+	Name      = "json"
+	Separator = "."
+)
+
+var _ config.Provider = (*Provider)(nil)
+
+func New(json []byte, opts ...Option) *Provider {
+	provider := Provider{
+		key: func(s ...string) string {
+			return strings.Join(s, Separator)
+		},
+		data: json,
+	}
+
+	for _, opt := range opts {
+		opt(&provider)
+	}
+
+	return &provider
+}
+
+func NewFile(path string, opts ...Option) (*Provider, error) {
+	file, err := os.ReadFile(filepath.Clean(path))
+	if err != nil {
+		return nil, fmt.Errorf("%w: unable to read config file %#q: file not found or unreadable", err, path)
+	}
+
+	return New(file, opts...), nil
+}
+
+type Option func(*Provider)
+
+type Provider struct {
+	data []byte
+	key  func(...string) string
+	name string
+}
+
+func (p *Provider) Name() string {
+	return p.name
+}
+
+func (p *Provider) Value(_ context.Context, path ...string) (config.Value, error) {
+	key := p.key(path...)
+	if val := gjson.GetBytes(p.data, key); val.Exists() {
+		return value.JString(val.String()), nil
+	}
+
+	return nil, fmt.Errorf("%v:%w", p.Name(), config.ErrValueNotFound)
+}
--- a/provider/json/provider_example_test.go
+++ b/provider/json/provider_example_test.go
@@ -0,0 +1,55 @@
+package json_test
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/provider/json"
+	"gitoa.ru/go-4devs/config/test"
+)
+
+func ExampleClient_Value() {
+	ctx := context.Background()
+
+	// read json config
+	jsonConfig, jerr := fixture.ReadFile("fixture/config.json")
+	if jerr != nil {
+		log.Printf("failed load file:%v", jerr)
+
+		return
+	}
+
+	config, err := config.New(
+		json.New(jsonConfig),
+	)
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	title, err := config.Value(ctx, "app.name.title")
+	if err != nil {
+		log.Print("app.name.title", err)
+
+		return
+	}
+
+	cfgValue, err := config.Value(ctx, "cfg")
+	if err != nil {
+		log.Print("cfg ", err)
+
+		return
+	}
+
+	cfg := test.Config{}
+	_ = cfgValue.Unmarshal(&cfg)
+
+	fmt.Printf("title from json: %v\n", title.String())
+	fmt.Printf("struct from json: %+v\n", cfg)
+	// Output:
+	// title from json: config title
+	// struct from json: {Duration:21m0s Enabled:true}
+}
--- a/provider/json/provider_test.go
+++ b/provider/json/provider_test.go
@@ -0,0 +1,33 @@
+package json_test
+
+import (
+	"embed"
+	"testing"
+	"time"
+
+	"gitoa.ru/go-4devs/config/provider/json"
+	"gitoa.ru/go-4devs/config/test"
+	"gitoa.ru/go-4devs/config/test/require"
+)
+
+//go:embed fixture/*
+var fixture embed.FS
+
+func TestProvider(t *testing.T) {
+	t.Parallel()
+
+	js, err := fixture.ReadFile("fixture/config.json")
+	require.NoError(t, err)
+
+	prov := json.New(js)
+	sl := []string{}
+	read := []test.Read{
+		test.NewRead("config title", "app.name.title"),
+		test.NewRead(time.Minute, "app.name.timeout"),
+		test.NewReadUnmarshal(&[]string{"name"}, &sl, "app.name.var"),
+		test.NewReadConfig("cfg"),
+		test.NewRead(true, "app", "name", "success"),
+	}
+
+	test.Run(t, prov, read)
+}
--- a/provider/toml/fixture/config.toml
+++ b/provider/toml/fixture/config.toml
@@ -0,0 +1,31 @@
+title = "TOML Example"
+
+[owner]
+name = "Tom Preston-Werner"
+dob = 1979-05-27T07:32:00-08:00 # First class dates
+
+[database]
+server = "192.168.1.1"
+ports = [ 8001, 8001, 8002 ]
+connection_max = 5000
+enabled = true
+
+[servers]
+
+  # Indentation (tabs and/or spaces) is allowed but not required
+  [servers.alpha]
+  ip = "10.0.0.1"
+  dc = "eqdc10"
+
+  [servers.beta]
+  ip = "10.0.0.2"
+  dc = "eqdc10"
+
+[clients]
+data = [ ["gamma", "delta"], [1, 2] ]
+
+# Line breaks are OK when inside arrays
+hosts = [
+  "alpha",
+  "omega"
+]
--- a/provider/toml/go.mod
+++ b/provider/toml/go.mod
@@ -0,0 +1,15 @@
+module gitoa.ru/go-4devs/config/provider/toml
+
+go 1.21
+
+require (
+	github.com/pelletier/go-toml v1.9.5
+	github.com/stretchr/testify v1.8.4
+	gitoa.ru/go-4devs/config v0.0.1
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
--- a/provider/toml/go.sum
+++ b/provider/toml/go.sum
@@ -0,0 +1,14 @@
+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/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
+github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
+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 v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+gitoa.ru/go-4devs/config v0.0.1 h1:9KrOO09YbIMO8qL8aVn/G74DurGdOIW5y3O02bays4I=
+gitoa.ru/go-4devs/config v0.0.1/go.mod h1:xfEC2Al9xnMLJUuekYs3KhJ5BIzWAseNwkMwbN6/xss=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/provider/toml/provider.go
+++ b/provider/toml/provider.go
@@ -0,0 +1,71 @@
+package toml
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/pelletier/go-toml"
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+)
+
+const (
+	Name      = "toml"
+	Separator = "."
+)
+
+var _ config.Provider = (*Provider)(nil)
+
+func NewFile(file string, opts ...Option) (*Provider, error) {
+	tree, err := toml.LoadFile(file)
+	if err != nil {
+		return nil, fmt.Errorf("toml: failed load file: %w", err)
+	}
+
+	return configure(tree, opts...), nil
+}
+
+type Option func(*Provider)
+
+func configure(tree *toml.Tree, opts ...Option) *Provider {
+	prov := &Provider{
+		tree: tree,
+		key: func(s []string) string {
+			return strings.Join(s, Separator)
+		},
+	}
+
+	for _, opt := range opts {
+		opt(prov)
+	}
+
+	return prov
+}
+
+func New(data []byte, opts ...Option) (*Provider, error) {
+	tree, err := toml.LoadBytes(data)
+	if err != nil {
+		return nil, fmt.Errorf("toml failed load data: %w", err)
+	}
+
+	return configure(tree, opts...), nil
+}
+
+type Provider struct {
+	tree *toml.Tree
+	key  func([]string) string
+	name string
+}
+
+func (p *Provider) Name() string {
+	return p.name
+}
+
+func (p *Provider) Value(_ context.Context, path ...string) (config.Value, error) {
+	if k := p.key(path); p.tree.Has(k) {
+		return Value{Value: value.Value{Val: p.tree.Get(k)}}, nil
+	}
+
+	return nil, config.ErrValueNotFound
+}
--- a/provider/toml/provider_test.go
+++ b/provider/toml/provider_test.go
@@ -0,0 +1,36 @@
+package toml_test
+
+import (
+	"embed"
+	"testing"
+
+	"gitoa.ru/go-4devs/config/provider/toml"
+	"gitoa.ru/go-4devs/config/test"
+	"gitoa.ru/go-4devs/config/test/require"
+)
+
+//go:embed fixture/*
+var fixtures embed.FS
+
+func TestProvider(t *testing.T) {
+	t.Parallel()
+
+	files, ferr := fixtures.ReadFile("fixture/config.toml")
+	require.NoError(t, ferr)
+
+	prov, err := toml.New(files)
+	require.NoError(t, err)
+
+	m := []int{}
+
+	read := []test.Read{
+		test.NewRead("192.168.1.1", "database.server"),
+		test.NewRead("TOML Example", "title"),
+		test.NewRead("10.0.0.1", "servers.alpha.ip"),
+		test.NewRead(true, "database.enabled"),
+		test.NewRead(5000, "database.connection_max"),
+		test.NewReadUnmarshal(&[]int{8001, 8001, 8002}, &m, "database", "ports"),
+	}
+
+	test.Run(t, prov, read)
+}
--- a/provider/toml/value.go
+++ b/provider/toml/value.go
@@ -0,0 +1,41 @@
+package toml
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+)
+
+type Value struct {
+	value.Value
+}
+
+func (s Value) Int() int {
+	v, _ := s.ParseInt()
+
+	return v
+}
+
+func (s Value) ParseInt() (int, error) {
+	v, err := s.ParseInt64()
+	if err != nil {
+		return 0, fmt.Errorf("toml failed parce int: %w", err)
+	}
+
+	return int(v), nil
+}
+
+func (s Value) Unmarshal(target interface{}) error {
+	b, err := json.Marshal(s.Raw())
+	if err != nil {
+		return fmt.Errorf("%w: %w", config.ErrInvalidValue, err)
+	}
+
+	if err := json.Unmarshal(b, target); err != nil {
+		return fmt.Errorf("%w: %w", config.ErrInvalidValue, err)
+	}
+
+	return nil
+}
--- a/provider/vault/go.mod
+++ b/provider/vault/go.mod
@@ -0,0 +1,29 @@
+module gitoa.ru/go-4devs/config/provider/vault
+
+go 1.21
+
+require (
+	github.com/hashicorp/vault/api v1.11.0
+	gitoa.ru/go-4devs/config v0.0.2
+)
+
+require (
+	github.com/cenkalti/backoff/v3 v3.0.0 // indirect
+	github.com/go-jose/go-jose/v3 v3.0.1 // 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
+	github.com/hashicorp/go-retryablehttp v0.6.6 // indirect
+	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
+	github.com/hashicorp/go-secure-stdlib/parseutil v0.1.6 // indirect
+	github.com/hashicorp/go-secure-stdlib/strutil v0.1.2 // indirect
+	github.com/hashicorp/go-sockaddr v1.0.2 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/ryanuber/go-glob v1.0.0 // indirect
+	golang.org/x/crypto v0.17.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1 // indirect
+)
--- a/provider/vault/go.sum
+++ b/provider/vault/go.sum
@@ -0,0 +1,92 @@
+github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/cenkalti/backoff/v3 v3.0.0 h1:ske+9nBpD9qZsTBoF41nW5L+AIuFBKMeze18XQ3eG1c=
+github.com/cenkalti/backoff/v3 v3.0.0/go.mod h1:cIeZDE3IrqwwJl6VUwCN6trj1oXrTS4rc0ij+ULvLYs=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+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/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
+github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
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+github.com/go-test/deep v1.0.2 h1:onZX1rnHT3Wv6cqNgYyFOOlgVKJrksuCMCRvJStbMYw=
+github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
+github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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+gitoa.ru/go-4devs/config v0.0.2/go.mod h1:xfEC2Al9xnMLJUuekYs3KhJ5BIzWAseNwkMwbN6/xss=
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+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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--- a/provider/vault/provider.go
+++ b/provider/vault/provider.go
@@ -0,0 +1,120 @@
+package vault
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/hashicorp/vault/api"
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+)
+
+const (
+	Name      = "vault"
+	Separator = "/"
+	Prefix    = "secret/data/"
+	ValueName = "value"
+)
+
+var _ config.Provider = (*Provider)(nil)
+
+type SecretOption func(*Provider)
+
+func WithSecretResolve(f func(key []string) (string, string)) SecretOption {
+	return func(s *Provider) { s.resolve = f }
+}
+
+func New(namespace, appName string, client *api.Client, opts ...SecretOption) *Provider {
+	prov := Provider{
+		client: client,
+		resolve: func(key []string) (string, string) {
+			keysLen := len(key)
+			if keysLen == 1 {
+				return "", key[0]
+			}
+
+			return strings.Join(key[:keysLen-1], Separator), key[keysLen-1]
+		},
+		name:   Name,
+		prefix: Prefix + namespace + Separator + appName,
+	}
+
+	for _, opt := range opts {
+		opt(&prov)
+	}
+
+	return &prov
+}
+
+type Provider struct {
+	client  *api.Client
+	resolve func(key []string) (string, string)
+	name    string
+	prefix  string
+}
+
+func (p *Provider) Name() string {
+	return p.name
+}
+
+func (p *Provider) Key(in []string) (string, string) {
+	path, val := p.resolve(in)
+	if path == "" {
+		return p.prefix, val
+	}
+
+	return p.prefix + Separator + path, val
+}
+
+func (p *Provider) read(path, key string) (*api.Secret, error) {
+	secret, err := p.client.Logical().Read(path)
+	if err != nil {
+		return nil, fmt.Errorf("read[%s:%s]:%w", path, key, err)
+	}
+
+	if secret == nil && key != ValueName {
+		return p.read(path+Separator+key, ValueName)
+	}
+
+	return secret, nil
+}
+
+func (p *Provider) Value(_ context.Context, key ...string) (config.Value, error) {
+	path, field := p.Key(key)
+
+	secret, err := p.read(path, field)
+	if err != nil {
+		return nil, fmt.Errorf("%w: path:%s, field:%s, provider:%s", err, path, field, p.Name())
+	}
+
+	if secret == nil || len(secret.Data) == 0 {
+		return nil, fmt.Errorf("%w: path:%s, field:%s, provider:%s", config.ErrValueNotFound, path, field, p.Name())
+	}
+
+	if len(secret.Warnings) > 0 {
+		return nil,
+			fmt.Errorf("%w: warn: %s, path:%s, field:%s, provider:%s", config.ErrValueNotFound, secret.Warnings, path, field, p.Name())
+	}
+
+	data, ok := secret.Data["data"].(map[string]interface{})
+	if !ok {
+		return nil, fmt.Errorf("%w: path:%s, field:%s, provider:%s", config.ErrValueNotFound, path, field, p.Name())
+	}
+
+	if val, ok := data[field]; ok {
+		return value.JString(fmt.Sprint(val)), nil
+	}
+
+	if val, ok := data[ValueName]; ok {
+		return value.JString(fmt.Sprint(val)), nil
+	}
+
+	md, err := json.Marshal(data)
+	if err != nil {
+		return nil, fmt.Errorf("%w: %w", config.ErrInvalidValue, err)
+	}
+
+	return value.JBytes(md), nil
+}
--- a/provider/vault/provider_example_test.go
+++ b/provider/vault/provider_example_test.go
@@ -0,0 +1,47 @@
+package vault_test
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/provider/vault"
+)
+
+func ExampleClient_Value() {
+	const (
+		namespace = "fdevs"
+		appName   = "config"
+	)
+
+	ctx := context.Background()
+
+	// configure vault client
+	vaultClient, err := NewVault()
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	config, err := config.New(
+		vault.New(namespace, appName, vaultClient),
+	)
+	if err != nil {
+		log.Print(err)
+
+		return
+	}
+
+	dsn, err := config.Value(ctx, "example", "dsn")
+	if err != nil {
+		log.Print("example:dsn ", err)
+
+		return
+	}
+
+	fmt.Printf("dsn from vault: %s\n", dsn.String())
+	// Output:
+	// dsn from vault: pgsql://user@pass:127.0.0.1:5432
+}
--- a/provider/vault/provider_test.go
+++ b/provider/vault/provider_test.go
@@ -0,0 +1,26 @@
+package vault_test
+
+import (
+	"testing"
+	"time"
+
+	"gitoa.ru/go-4devs/config/provider/vault"
+	"gitoa.ru/go-4devs/config/test"
+	"gitoa.ru/go-4devs/config/test/require"
+)
+
+func TestProvider(t *testing.T) {
+	t.Parallel()
+
+	cl, err := NewVault()
+	require.NoError(t, err)
+
+	provider := vault.New("fdevs", "config", cl)
+
+	read := []test.Read{
+		test.NewReadConfig("database"),
+		test.NewRead(test.DSN, "db", "dsn"),
+		test.NewRead(time.Minute, "db", "timeout"),
+	}
+	test.Run(t, provider, read)
+}
--- a/provider/vault/vault_test.go
+++ b/provider/vault/vault_test.go
@@ -0,0 +1,90 @@
+package vault_test
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"net/http"
+	"os"
+
+	"github.com/hashicorp/vault/api"
+	"gitoa.ru/go-4devs/config/test"
+)
+
+const token = "dev"
+
+func NewVault() (*api.Client, error) {
+	address, ok := os.LookupEnv("VAULT_DEV_LISTEN_ADDRESS")
+	if !ok {
+		address = "http://127.0.0.1:8200"
+	}
+
+	tokenID, ok := os.LookupEnv("VAULT_DEV_ROOT_TOKEN_ID")
+	if !ok {
+		tokenID = token
+	}
+
+	cl, err := api.NewClient(&api.Config{
+		Address: address,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	cl.SetToken(tokenID)
+
+	values := map[string]map[string]interface{}{
+		"database": {
+			"duration": 1260000000000,
+			"enabled":  true,
+		},
+		"db": {
+			"dsn":     test.DSN,
+			"timeout": "60s",
+		},
+		"example": {
+			"dsn":     test.DSN,
+			"timeout": "60s",
+		},
+	}
+
+	for name, val := range values {
+		if err := create(address, tokenID, name, val); err != nil {
+			return nil, err
+		}
+	}
+
+	return cl, nil
+}
+
+func create(host, token, path string, data map[string]interface{}) error {
+	type Req struct {
+		Data interface{} `json:"data"`
+	}
+
+	b, err := json.Marshal(Req{Data: data})
+	if err != nil {
+		return err
+	}
+
+	body := bytes.NewBuffer(b)
+
+	req, err := http.NewRequestWithContext(
+		context.Background(),
+		http.MethodPost,
+		host+"/v1/secret/data/fdevs/config/"+path,
+		body,
+	)
+	if err != nil {
+		return err
+	}
+
+	req.Header.Set("X-Vault-Token", token)
+
+	res, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+
+	return res.Body.Close()
+}
--- a/provider/yaml/fixture/config.yaml
+++ b/provider/yaml/fixture/config.yaml
@@ -0,0 +1,14 @@
+app:
+    title: yaml title
+    name:
+        var: 
+            - test
+        bool_var: true
+duration_var: 21m
+empty_var: 
+url_var: "http://google.com/"
+time_var: "2020-01-02T15:04:05Z"
+cfg:
+    duration: 21m
+    enabled: true
+    type: yaml
--- a/provider/yaml/go.mod
+++ b/provider/yaml/go.mod
@@ -0,0 +1,8 @@
+module gitoa.ru/go-4devs/config/provider/yaml
+
+go 1.21
+
+require (
+	gitoa.ru/go-4devs/config v0.0.1
+	gopkg.in/yaml.v3 v3.0.1
+)
--- a/provider/yaml/go.sum
+++ b/provider/yaml/go.sum
@@ -0,0 +1,6 @@
+gitoa.ru/go-4devs/config v0.0.1 h1:9KrOO09YbIMO8qL8aVn/G74DurGdOIW5y3O02bays4I=
+gitoa.ru/go-4devs/config v0.0.1/go.mod h1:xfEC2Al9xnMLJUuekYs3KhJ5BIzWAseNwkMwbN6/xss=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/provider/yaml/provider.go
+++ b/provider/yaml/provider.go
@@ -0,0 +1,100 @@
+package yaml
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/value"
+	"gopkg.in/yaml.v3"
+)
+
+const (
+	Name = "yaml"
+)
+
+var _ config.Provider = (*Provider)(nil)
+
+func NewFile(name string, opts ...Option) (*Provider, error) {
+	in, err := os.ReadFile(name)
+	if err != nil {
+		return nil, fmt.Errorf("yaml_file: read error: %w", err)
+	}
+
+	return New(in, opts...)
+}
+
+func New(yml []byte, opts ...Option) (*Provider, error) {
+	var data yaml.Node
+	if err := yaml.Unmarshal(yml, &data); err != nil {
+		return nil, fmt.Errorf("yaml: unmarshal err: %w", err)
+	}
+
+	return create(opts...).With(&data), nil
+}
+
+func create(opts ...Option) *Provider {
+	prov := Provider{
+		name: Name,
+	}
+
+	for _, opt := range opts {
+		opt(&prov)
+	}
+
+	return &prov
+}
+
+type Option func(*Provider)
+
+type Provider struct {
+	data node
+	name string
+}
+
+func (p *Provider) Name() string {
+	return p.name
+}
+
+func (p *Provider) Value(_ context.Context, path ...string) (config.Value, error) {
+	return p.data.read(p.Name(), path)
+}
+
+func (p *Provider) With(data *yaml.Node) *Provider {
+	return &Provider{
+		data: node{Node: data},
+	}
+}
+
+type node struct {
+	*yaml.Node
+}
+
+func (n *node) read(name string, keys []string) (config.Value, error) {
+	val, err := getData(n.Node.Content[0].Content, keys)
+	if err != nil {
+		if errors.Is(err, config.ErrValueNotFound) {
+			return nil, fmt.Errorf("%w: %s", config.ErrValueNotFound, name)
+		}
+
+		return nil, fmt.Errorf("%w: %s", err, name)
+	}
+
+	return value.Decode(val), nil
+}
+
+func getData(node []*yaml.Node, keys []string) (func(interface{}) error, error) {
+	for idx := len(node) - 1; idx > 0; idx -= 2 {
+		if node[idx-1].Value == keys[0] {
+			if len(keys) > 1 {
+				return getData(node[idx].Content, keys[1:])
+			}
+
+			return node[idx].Decode, nil
+		}
+	}
+
+	return nil, config.ErrValueNotFound
+}
--- a/provider/yaml/provider_test.go
+++ b/provider/yaml/provider_test.go
@@ -0,0 +1,32 @@
+package yaml_test
+
+import (
+	"embed"
+	"testing"
+	"time"
+
+	"gitoa.ru/go-4devs/config/provider/yaml"
+	"gitoa.ru/go-4devs/config/test"
+	"gitoa.ru/go-4devs/config/test/require"
+)
+
+//go:embed fixture/*
+var fixture embed.FS
+
+func TestProvider(t *testing.T) {
+	t.Parallel()
+
+	data, err := fixture.ReadFile("fixture/config.yaml")
+	require.NoError(t, err)
+	prov, err := yaml.New(data)
+	require.NoError(t, err)
+
+	read := []test.Read{
+		test.NewRead(21*time.Minute, "duration_var"),
+		test.NewRead(true, "app", "name", "bool_var"),
+		test.NewRead(test.Time("2020-01-02T15:04:05Z"), "time_var"),
+		test.NewReadConfig("cfg"),
+	}
+
+	test.Run(t, prov, read)
+}
--- a/provider/yaml/watch.go
+++ b/provider/yaml/watch.go
@@ -0,0 +1,46 @@
+package yaml
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"gitoa.ru/go-4devs/config"
+	"gopkg.in/yaml.v3"
+)
+
+const NameWatch = "yaml_watch"
+
+func NewWatch(name string, opts ...Option) *Watch {
+	wath := Watch{
+		file: name,
+		prov: create(opts...),
+		name: NameWatch,
+	}
+
+	return &wath
+}
+
+type Watch struct {
+	file string
+	prov *Provider
+	name string
+}
+
+func (p *Watch) Name() string {
+	return p.name
+}
+
+func (p *Watch) Value(ctx context.Context, path ...string) (config.Value, error) {
+	in, err := os.ReadFile(p.file)
+	if err != nil {
+		return nil, fmt.Errorf("yaml_file: read error: %w", err)
+	}
+
+	var yNode yaml.Node
+	if err = yaml.Unmarshal(in, &yNode); err != nil {
+		return nil, fmt.Errorf("yaml_file: unmarshal error: %w", err)
+	}
+
+	return p.prov.With(&yNode).Value(ctx, path...)
+}
--- a/test/assert/equal.go
+++ b/test/assert/equal.go
@@ -0,0 +1,30 @@
+package assert
+
+import (
+	"reflect"
+	"testing"
+)
+
+func Equal(t *testing.T, expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
+	t.Helper()
+
+	if reflect.DeepEqual(expected, actual) {
+		return true
+	}
+
+	t.Error(msgAndArgs...)
+
+	return false
+}
+
+func Equalf(t *testing.T, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	t.Helper()
+
+	if reflect.DeepEqual(expected, actual) {
+		return true
+	}
+
+	t.Errorf(msg, args...)
+
+	return false
+}
--- a/test/assert/nil.go
+++ b/test/assert/nil.go
@@ -0,0 +1,15 @@
+package assert
+
+import "testing"
+
+func Nil(t *testing.T, data any, msgAndArgs ...interface{}) bool {
+	t.Helper()
+
+	if data != nil {
+		t.Error(msgAndArgs...)
+
+		return false
+	}
+
+	return true
+}
--- a/test/require/equal.go
+++ b/test/require/equal.go
@@ -1,25 +1,25 @@
 package require

 import (
-	"reflect"
 	"testing"
+
+	"gitoa.ru/go-4devs/config/test/assert"
 )

 func Equal(t *testing.T, expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
 	t.Helper()

-	if reflect.DeepEqual(expected, actual) {
+	if assert.Equal(t, expected, actual, msgAndArgs...) {
 		return
 	}

-	t.Error(msgAndArgs...)
 	t.FailNow()
 }

 func Equalf(t *testing.T, expected interface{}, actual interface{}, msg string, args ...interface{}) {
 	t.Helper()

-	if reflect.DeepEqual(expected, actual) {
+	if assert.Equalf(t, expected, actual, msg, args...) {
 		return
 	}
Author	SHA1	Message	Date
andrey	fdde1ef085	add provider vault Some checks failed continuous-integration/drone/pr Build was killed Details continuous-integration/drone/push Build is failing Details	2024-01-25 22:51:31 +03:00
andrey	947c40d918	Merge pull request 'add etcd provider' (#8 ) from etcd into master Some checks failed continuous-integration/drone/push Build was killed Details Reviewed-on: #8	2024-01-25 22:49:02 +03:00
andrey	788e2928fe	add etcd provider Some checks failed continuous-integration/drone/pr Build was killed Details continuous-integration/drone/push Build was killed Details	2024-01-25 22:48:33 +03:00
andrey	66c1eef44a	add assert tests Some checks failed continuous-integration/drone/push Build was killed Details continuous-integration/drone/tag Build was killed Details	2024-01-25 22:30:15 +03:00
andrey	b7736b7d4c	Merge pull request 'add toml provider' (#7 ) from toml into master Some checks failed continuous-integration/drone/push Build was killed Details Reviewed-on: #7	2024-01-25 22:29:06 +03:00
andrey	fdab23b756	add toml provider Some checks failed continuous-integration/drone/pr Build was killed Details continuous-integration/drone/push Build is passing Details	2024-01-25 22:04:58 +03:00
andrey	18ce790363	Merge pull request 'add provider ini' (#6 ) from ini into master Some checks failed continuous-integration/drone/push Build was killed Details Reviewed-on: #6	2024-01-25 22:02:59 +03:00
andrey	5cb46f5030	add provider ini Some checks failed continuous-integration/drone/pr Build was killed Details continuous-integration/drone/push Build is failing Details	2024-01-25 22:02:02 +03:00
andrey	dd37b51974	Merge pull request 'add yaml provider' (#5 ) from yaml into master All checks were successful continuous-integration/drone/push Build is passing Details Reviewed-on: #5	2024-01-25 21:39:05 +03:00
andrey	1088e26bcf	add yaml provider Some checks failed continuous-integration/drone/pr Build was killed Details continuous-integration/drone/push Build is passing Details	2024-01-25 21:35:01 +03:00
andrey	089f43dcb9	Merge pull request 'add json provider' (#4 ) from json into master All checks were successful continuous-integration/drone/push Build is passing Details Reviewed-on: #4	2024-01-25 21:30:11 +03:00
andrey	59f97e1681	add json provider Some checks failed continuous-integration/drone/pr Build was killed Details continuous-integration/drone/push Build is passing Details	2024-01-25 21:23:39 +03:00