Merge branch 'main' into config

# Conflicts:
#	pkg/cache/rediscache/provider.go
#	pkg/cache/rediscache/provider_test.go
#	pkg/cache/rediscache/redis.go
#	pkg/cache/rediscache/redis_test.go
#	pkg/cache/strategy/redis/redis.go
#	pkg/cache/strategy/redis/redis_test.go

go.mod

@@ -20,6 +20,7 @@ require (
 	github.com/go-kit/log v0.2.1
 	github.com/go-redis/redis/v8 v8.11.5
 	github.com/go-redis/redismock/v8 v8.11.5
+	github.com/go-viper/mapstructure/v2 v2.1.0
 	github.com/golang-jwt/jwt v3.2.2+incompatible
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/handlers v1.5.1
@@ -29,6 +30,7 @@ require (
 	github.com/jmoiron/sqlx v1.3.4
 	github.com/json-iterator/go v1.1.12
 	github.com/knadh/koanf v1.5.0
+	github.com/knadh/koanf/v2 v2.1.1
 	github.com/mailru/easyjson v0.7.7
 	github.com/mattn/go-sqlite3 v2.0.3+incompatible
 	github.com/oklog/oklog v0.3.2
@@ -101,6 +103,7 @@ require (
 	github.com/facette/natsort v0.0.0-20181210072756-2cd4dd1e2dcb // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/form3tech-oss/jwt-go v3.2.5+incompatible // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-faster/city v1.0.1 // indirect
 	github.com/go-faster/errors v0.7.1 // indirect
 	github.com/go-jose/go-jose/v4 v4.0.2 // indirect
@@ -108,7 +111,6 @@ require (
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
-	github.com/go-viper/mapstructure/v2 v2.1.0 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang-jwt/jwt/v5 v5.2.1 // indirect
@@ -129,7 +131,6 @@ require (
 	github.com/jpillora/backoff v1.0.0 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
 	github.com/klauspost/compress v1.17.10 // indirect
-	github.com/knadh/koanf/v2 v2.1.1 // indirect
 	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/leodido/go-syslog/v4 v4.2.0 // indirect
 	github.com/leodido/ragel-machinery v0.0.0-20190525184631-5f46317e436b // indirect

pkg/config/conf.go

@@ -0,0 +1,90 @@
+package config
+
+import (
+	"github.com/go-viper/mapstructure/v2"
+	"github.com/knadh/koanf/providers/confmap"
+	"github.com/knadh/koanf/v2"
+)
+
+const (
+	KoanfDelimiter string = "::"
+)
+
+// Conf is a wrapper around the koanf library.
+type Conf struct {
+	*koanf.Koanf
+}
+
+// NewConf creates a new Conf instance.
+func NewConf() *Conf {
+	return &Conf{koanf.New(KoanfDelimiter)}
+}
+
+// NewConfFromMap creates a new Conf instance from a map.
+func NewConfFromMap(m map[string]any) (*Conf, error) {
+	conf := NewConf()
+	if err := conf.Koanf.Load(confmap.Provider(m, KoanfDelimiter), nil); err != nil {
+		return nil, err
+	}
+
+	return conf, nil
+}
+
+// MustNewConfFromMap creates a new Conf instance from a map.
+// It panics if the conf cannot be created.
+func MustNewConfFromMap(m map[string]any) *Conf {
+	conf, err := NewConfFromMap(m)
+	if err != nil {
+		panic(err)
+	}
+
+	return conf
+}
+
+// Merge merges the current configuration with the input configuration.
+func (conf *Conf) Merge(input *Conf) error {
+	return conf.Koanf.Merge(input.Koanf)
+}
+
+// Merge merges the current configuration with the input configuration.
+func (conf *Conf) MergeAt(input *Conf, path string) error {
+	return conf.Koanf.MergeAt(input.Koanf, path)
+}
+
+// Unmarshal unmarshals the configuration at the given path into the input.
+// It uses a WeaklyTypedInput to allow for more flexible unmarshalling.
+func (conf *Conf) Unmarshal(path string, input any) error {
+	dc := &mapstructure.DecoderConfig{
+		TagName:          "mapstructure",
+		WeaklyTypedInput: true,
+		DecodeHook: mapstructure.ComposeDecodeHookFunc(
+			mapstructure.StringToSliceHookFunc(","),
+			mapstructure.StringToTimeDurationHookFunc(),
+			mapstructure.TextUnmarshallerHookFunc(),
+		),
+		Result: input,
+	}
+
+	return conf.Koanf.UnmarshalWithConf(path, input, koanf.UnmarshalConf{Tag: "mapstructure", DecoderConfig: dc})
+}
+
+// Set sets the configuration at the given key.
+// It decodes the input into a map as per mapstructure.Decode and then merges it into the configuration.
+func (conf *Conf) Set(key string, input any) error {
+	m := map[string]any{}
+	err := mapstructure.Decode(input, &m)
+	if err != nil {
+		return err
+	}
+
+	newConf := NewConf()
+	if err := newConf.Koanf.Load(confmap.Provider(m, KoanfDelimiter), nil); err != nil {
+		return err
+	}
+
+	if err := conf.Koanf.MergeAt(newConf.Koanf, key); err != nil {
+		return err
+	}
+
+	return nil
+}

pkg/config/conf_test.go

@@ -0,0 +1,38 @@
+package config
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestConfMerge(t *testing.T) {
+	testCases := []struct {
+		name     string
+		conf     *Conf
+		input    *Conf
+		expected *Conf
+		pass     bool
+	}{
+		{name: "Empty", conf: NewConf(), input: NewConf(), expected: NewConf(), pass: true},
+		{name: "Merge", conf: MustNewConfFromMap(map[string]any{"a": "b"}), input: MustNewConfFromMap(map[string]any{"c": "d"}), expected: MustNewConfFromMap(map[string]any{"a": "b", "c": "d"}), pass: true},
+		{name: "NestedMerge", conf: MustNewConfFromMap(map[string]any{"a": map[string]any{"b": "v1", "c": "v2"}}), input: MustNewConfFromMap(map[string]any{"a": map[string]any{"d": "v1", "e": "v2"}}), expected: MustNewConfFromMap(map[string]any{"a": map[string]any{"b": "v1", "c": "v2", "d": "v1", "e": "v2"}}), pass: true},
+		{name: "Override", conf: MustNewConfFromMap(map[string]any{"a": "b"}), input: MustNewConfFromMap(map[string]any{"a": "c"}), expected: MustNewConfFromMap(map[string]any{"a": "c"}), pass: true},
+	}
+
+	t.Parallel()
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			err := tc.conf.Merge(tc.input)
+			if !tc.pass {
+				assert.Error(t, err)
+				return
+			}
+
+			require.NoError(t, err)
+			assert.Equal(t, tc.expected.Raw(), tc.conf.Raw())
+			assert.Equal(t, tc.expected.Raw(), tc.conf.Raw())
+		})
+	}
+}

pkg/config/config.go

@@ -3,32 +3,34 @@ package config
 import (
 	"context"
 
-	"go.signoz.io/signoz/pkg/cache"
-	signozconfmap "go.signoz.io/signoz/pkg/confmap"
-	"go.signoz.io/signoz/pkg/instrumentation"
-	"go.signoz.io/signoz/pkg/web"
+	"go.signoz.io/signoz/pkg/factory"
 )
 
-// This map contains the default values of all config structs
-var (
-	defaults = map[string]signozconfmap.Config{
-		"web":   &web.Config{},
-		"cache": &cache.Config{},
-	}
-)
-
-// Config defines the entire configuration of signoz.
-type Config struct {
-	Instrumentation instrumentation.Config `mapstructure:"instrumentation"`
-	Web             web.Config             `mapstructure:"web"`
-	Cache           cache.Config           `mapstructure:"cache"`
-}
-
-func New(ctx context.Context, settings ProviderSettings) (*Config, error) {
-	provider, err := NewProvider(settings)
+func New(ctx context.Context, resolverConfig ResolverConfig, configFactories []factory.ConfigFactory) (*Conf, error) {
+	// Get the config from the resolver
+	resolver, err := NewResolver(resolverConfig)
 	if err != nil {
 		return nil, err
 	}
 
-	return provider.Get(ctx)
+	resolvedConf, err := resolver.Do(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	conf := NewConf()
+	// Set the default configs
+	for _, factory := range configFactories {
+		c := factory.New()
+		if err := conf.Set(factory.Name().String(), c); err != nil {
+			return nil, err
+		}
+	}
+
+	err = conf.Merge(resolvedConf)
+	if err != nil {
+		return nil, err
+	}
+
+	return conf, nil
 }

pkg/config/config_test.go

@@ -1,54 +0,0 @@
-package config
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"go.opentelemetry.io/collector/confmap"
-	"go.signoz.io/signoz/pkg/cache"
-	"go.signoz.io/signoz/pkg/confmap/provider/signozenvprovider"
-	"go.signoz.io/signoz/pkg/web"
-)
-
-func TestNewWithSignozEnvProvider(t *testing.T) {
-
-	t.Setenv("SIGNOZ__WEB__PREFIX", "/web")
-	t.Setenv("SIGNOZ__WEB__DIRECTORY", "/build")
-	t.Setenv("SIGNOZ__CACHE__PROVIDER", "redis")
-	t.Setenv("SIGNOZ__CACHE__REDIS__HOST", "127.0.0.1")
-
-	config, err := New(context.Background(), ProviderSettings{
-		ResolverSettings: confmap.ResolverSettings{
-			URIs: []string{"signozenv:"},
-			ProviderFactories: []confmap.ProviderFactory{
-				signozenvprovider.NewFactory(),
-			},
-		},
-	})
-	require.NoError(t, err)
-
-	expected := &Config{
-		Web: web.Config{
-			Prefix:    "/web",
-			Directory: "/build",
-		},
-		Cache: cache.Config{
-			Provider: "redis",
-			Memory: cache.Memory{
-				TTL:             time.Duration(-1),
-				CleanupInterval: 1 * time.Minute,
-			},
-			Redis: cache.Redis{
-				Host:     "127.0.0.1",
-				Port:     6379,
-				Password: "",
-				DB:       0,
-			},
-		},
-	}
-
-	assert.Equal(t, expected, config)
-}

pkg/config/envprovider/provider.go

@@ -0,0 +1,71 @@
+package envprovider
+
+import (
+	"context"
+	"strings"
+
+	koanfenv "github.com/knadh/koanf/providers/env"
+	"go.signoz.io/signoz/pkg/config"
+)
+
+const (
+	prefix string = "SIGNOZ_"
+	scheme string = "env"
+)
+
+type provider struct{}
+
+func NewFactory() config.ProviderFactory {
+	return config.NewProviderFactory(New)
+}
+
+func New(config config.ProviderConfig) config.Provider {
+	return &provider{}
+}
+
+func (provider *provider) Scheme() string {
+	return scheme
+}
+
+func (provider *provider) Get(ctx context.Context, uri config.Uri) (*config.Conf, error) {
+	conf := config.NewConf()
+	err := conf.Load(
+		koanfenv.Provider(
+			prefix,
+			// Do not set this to `_`. The correct delimiter is being set by the custom callback provided below.
+			// Since this had to be passed, using `config.KoanfDelimiter` eliminates any possible side effect.
+			config.KoanfDelimiter,
+			func(s string) string {
+				s = strings.ToLower(strings.TrimPrefix(s, prefix))
+				return provider.cb(s, config.KoanfDelimiter)
+			},
+		),
+		nil,
+	)
+
+	return conf, err
+}
+
+func (provider *provider) cb(s string, delim string) string {
+	delims := []rune(delim)
+	runes := []rune(s)
+	result := make([]rune, 0, len(runes))
+
+	for i := 0; i < len(runes); i++ {
+		// Check for double underscore pattern
+		if i < len(runes)-1 && runes[i] == '_' && runes[i+1] == '_' {
+			result = append(result, '_')
+			i++ // Skip next underscore
+			continue
+		}
+
+		if runes[i] == '_' {
+			result = append(result, delims...)
+			continue
+		}
+
+		result = append(result, runes[i])
+	}
+
+	return string(result)
+}

pkg/config/envprovider/provider_test.go

@@ -0,0 +1,78 @@
+package envprovider
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.signoz.io/signoz/pkg/config"
+)
+
+func TestGetWithStrings(t *testing.T) {
+	t.Setenv("SIGNOZ_K1_K2", "string")
+	t.Setenv("SIGNOZ_K3__K4", "string")
+	t.Setenv("SIGNOZ_K5__K6_K7__K8", "string")
+	t.Setenv("SIGNOZ_K9___K10", "string")
+	t.Setenv("SIGNOZ_K11____K12", "string")
+	expected := map[string]any{
+		"k1::k2":       "string",
+		"k3_k4":        "string",
+		"k5_k6::k7_k8": "string",
+		"k9_::k10":     "string",
+		"k11__k12":     "string",
+	}
+
+	provider := New(config.ProviderConfig{})
+	actual, err := provider.Get(context.Background(), config.MustNewUri("env:"))
+	require.NoError(t, err)
+
+	assert.Equal(t, expected, actual.All())
+}
+
+func TestGetWithGoTypes(t *testing.T) {
+	t.Setenv("SIGNOZ_BOOL", "true")
+	t.Setenv("SIGNOZ_STRING", "string")
+	t.Setenv("SIGNOZ_INT", "1")
+	t.Setenv("SIGNOZ_SLICE", "[1,2]")
+	expected := map[string]any{
+		"bool":   "true",
+		"int":    "1",
+		"slice":  "[1,2]",
+		"string": "string",
+	}
+
+	provider := New(config.ProviderConfig{})
+	actual, err := provider.Get(context.Background(), config.MustNewUri("env:"))
+	require.NoError(t, err)
+
+	assert.Equal(t, expected, actual.All())
+}
+
+func TestGetWithGoTypesWithUnmarshal(t *testing.T) {
+	t.Setenv("SIGNOZ_BOOL", "true")
+	t.Setenv("SIGNOZ_STRING", "string")
+	t.Setenv("SIGNOZ_INT", "1")
+
+	type test struct {
+		Bool   bool   `mapstructure:"bool"`
+		String string `mapstructure:"string"`
+		Int    int    `mapstructure:"int"`
+	}
+
+	expected := test{
+		Bool:   true,
+		String: "string",
+		Int:    1,
+	}
+
+	provider := New(config.ProviderConfig{})
+	conf, err := provider.Get(context.Background(), config.MustNewUri("env:"))
+	require.NoError(t, err)
+
+	actual := test{}
+	err = conf.Unmarshal("", &actual)
+	require.NoError(t, err)
+
+	assert.Equal(t, expected, actual)
+}

pkg/config/fileprovider/provider.go

@@ -0,0 +1,34 @@
+package fileprovider
+
+import (
+	"context"
+
+	koanfyaml "github.com/knadh/koanf/parsers/yaml"
+	koanffile "github.com/knadh/koanf/providers/file"
+	"go.signoz.io/signoz/pkg/config"
+)
+
+const (
+	scheme string = "file"
+)
+
+type provider struct{}
+
+func NewFactory() config.ProviderFactory {
+	return config.NewProviderFactory(New)
+}
+
+func New(config config.ProviderConfig) config.Provider {
+	return &provider{}
+}
+
+func (provider *provider) Scheme() string {
+	return scheme
+}
+
+func (provider *provider) Get(ctx context.Context, uri config.Uri) (*config.Conf, error) {
+	conf := config.NewConf()
+	err := conf.Load(koanffile.Provider(uri.Value()), koanfyaml.Parser())
+
+	return conf, err
+}

pkg/config/fileprovider/provider_test.go

@@ -0,0 +1,68 @@
+package fileprovider
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.signoz.io/signoz/pkg/config"
+)
+
+func TestGetWithStrings(t *testing.T) {
+	expected := map[string]any{
+		"k1::k2":       "string",
+		"k3_k4":        "string",
+		"k5_k6::k7_k8": "string",
+		"k9_::k10":     "string",
+		"k11__k12":     "string",
+	}
+
+	provider := New(config.ProviderConfig{})
+	actual, err := provider.Get(context.Background(), config.MustNewUri("file:"+filepath.Join("testdata", "strings.yaml")))
+	require.NoError(t, err)
+
+	assert.Equal(t, expected, actual.All())
+}
+
+func TestGetWithGoTypes(t *testing.T) {
+	expected := map[string]any{
+		"bool":   true,
+		"int":    1,
+		"slice":  []any{1, 2},
+		"string": "string",
+	}
+
+	provider := New(config.ProviderConfig{})
+	actual, err := provider.Get(context.Background(), config.MustNewUri("file:"+filepath.Join("testdata", "gotypes.yaml")))
+	require.NoError(t, err)
+
+	assert.Equal(t, expected, actual.All())
+}
+
+func TestGetWithGoTypesWithUnmarshal(t *testing.T) {
+	type test struct {
+		Bool   bool   `mapstructure:"bool"`
+		String string `mapstructure:"string"`
+		Int    int    `mapstructure:"int"`
+		Slice  []any  `mapstructure:"slice"`
+	}
+
+	expected := test{
+		Bool:   true,
+		String: "string",
+		Int:    1,
+		Slice:  []any{1, 2},
+	}
+
+	provider := New(config.ProviderConfig{})
+	conf, err := provider.Get(context.Background(), config.MustNewUri("file:"+filepath.Join("testdata", "gotypes.yaml")))
+	require.NoError(t, err)
+
+	actual := test{}
+	err = conf.Unmarshal("", &actual)
+	require.NoError(t, err)
+
+	assert.Equal(t, expected, actual)
+}

pkg/config/fileprovider/testdata/gotypes.yaml

@@ -0,0 +1,6 @@
+bool: true
+string: string
+int: 1
+slice:
+  - 1
+  - 2

pkg/config/fileprovider/testdata/strings.yaml

@@ -0,0 +1,8 @@
+k1:
+  k2: string
+k3_k4: string
+k5_k6:
+  k7_k8: string
+k9_:
+  k10: string
+k11__k12: string

pkg/config/provider.go

@@ -2,51 +2,38 @@ package config
 
 import (
 	"context"
-	"fmt"
-
-	"go.opentelemetry.io/collector/confmap"
 )
 
-// Provides the configuration for signoz.
+// NewProviderFunc is a function that creates a new provider.
+type NewProviderFunc = func(ProviderConfig) Provider
+
+// ProviderFactory is a factory that creates a new provider.
+type ProviderFactory interface {
+	New(ProviderConfig) Provider
+}
+
+// NewProviderFactory creates a new provider factory.
+func NewProviderFactory(f NewProviderFunc) ProviderFactory {
+	return &providerFactory{f: f}
+}
+
+// providerFactory is a factory that implements the ProviderFactory interface.
+type providerFactory struct {
+	f NewProviderFunc
+}
+
+// New creates a new provider.
+func (factory *providerFactory) New(config ProviderConfig) Provider {
+	return factory.f(config)
+}
+
+// ProviderConfig is the configuration for a provider.
+type ProviderConfig struct{}
+
+// Provider is an interface that represents a configuration provider.
 type Provider interface {
-	// Get returns the configuration, or error otherwise.
-	Get(ctx context.Context) (*Config, error)
-}
-
-type provider struct {
-	resolver *confmap.Resolver
-}
-
-// ProviderSettings are the settings to configure the behavior of the Provider.
-type ProviderSettings struct {
-	// ResolverSettings are the settings to configure the behavior of the confmap.Resolver.
-	ResolverSettings confmap.ResolverSettings
-}
-
-// NewProvider returns a new Provider that provides the entire configuration.
-// See https://github.com/open-telemetry/opentelemetry-collector/blob/main/otelcol/configprovider.go for
-// more details
-func NewProvider(settings ProviderSettings) (Provider, error) {
-	resolver, err := confmap.NewResolver(settings.ResolverSettings)
-	if err != nil {
-		return nil, err
-	}
-
-	return &provider{
-		resolver: resolver,
-	}, nil
-}
-
-func (provider *provider) Get(ctx context.Context) (*Config, error) {
-	conf, err := provider.resolver.Resolve(ctx)
-	if err != nil {
-		return nil, fmt.Errorf("cannot resolve configuration: %w", err)
-	}
-
-	config, err := unmarshal(conf)
-	if err != nil {
-		return nil, fmt.Errorf("cannot unmarshal configuration: %w", err)
-	}
-
-	return config, nil
+	// Get returns the configuration for the given URI.
+	Get(context.Context, Uri) (*Conf, error)
+	// Scheme returns the scheme of the provider.
+	Scheme() string
 }

pkg/config/resolver.go

@@ -0,0 +1,87 @@
+package config
+
+import (
+	"context"
+	"errors"
+	"fmt"
+)
+
+type ResolverConfig struct {
+	// Each string or `uri` must follow "<scheme>:<value>" format. This format is compatible with the URI definition
+	// defined at https://datatracker.ietf.org/doc/html/rfc3986".
+	// It is required to have at least one uri.
+	Uris []string
+
+	// ProviderFactories is a slice of Provider factories.
+	// It is required to have at least one factory.
+	ProviderFactories []ProviderFactory
+}
+
+type Resolver struct {
+	uris      []Uri
+	providers map[string]Provider
+}
+
+func NewResolver(config ResolverConfig) (*Resolver, error) {
+	if len(config.Uris) == 0 {
+		return nil, errors.New("cannot build resolver, no uris have been provided")
+	}
+
+	if len(config.ProviderFactories) == 0 {
+		return nil, errors.New("cannot build resolver, no providers have been provided")
+	}
+
+	uris := make([]Uri, len(config.Uris))
+	for i, inputUri := range config.Uris {
+		uri, err := NewUri(inputUri)
+		if err != nil {
+			return nil, err
+		}
+
+		uris[i] = uri
+	}
+
+	providers := make(map[string]Provider, len(config.ProviderFactories))
+	for _, factory := range config.ProviderFactories {
+		provider := factory.New(ProviderConfig{})
+
+		scheme := provider.Scheme()
+		// Check that the scheme is unique.
+		if _, ok := providers[scheme]; ok {
+			return nil, fmt.Errorf("cannot build resolver, duplicate scheme %q found", scheme)
+		}
+
+		providers[provider.Scheme()] = provider
+	}
+
+	return &Resolver{
+		uris:      uris,
+		providers: providers,
+	}, nil
+}
+
+func (resolver *Resolver) Do(ctx context.Context) (*Conf, error) {
+	conf := NewConf()
+
+	for _, uri := range resolver.uris {
+		currentConf, err := resolver.get(ctx, uri)
+		if err != nil {
+			return nil, err
+		}
+
+		if err = conf.Merge(currentConf); err != nil {
+			return nil, fmt.Errorf("cannot merge config: %w", err)
+		}
+	}
+
+	return conf, nil
+}
+
+func (resolver *Resolver) get(ctx context.Context, uri Uri) (*Conf, error) {
+	provider, ok := resolver.providers[uri.scheme]
+	if !ok {
+		return nil, fmt.Errorf("cannot find provider with schema %q", uri.scheme)
+	}
+
+	return provider.Get(ctx, uri)
+}

pkg/config/unmarshaler.go

@@ -1,49 +0,0 @@
-package config
-
-import (
-	"fmt"
-
-	"go.opentelemetry.io/collector/confmap"
-)
-
-// unmarshal converts a confmap.Conf into a Config struct.
-// It splits the input confmap into a map of key-value pairs, fetches the corresponding
-// signozconfmap.Config interface by name, merges it with the default config, validates it,
-// and then creates a new confmap from the parsed map to unmarshal into the Config struct.
-func unmarshal(conf *confmap.Conf) (*Config, error) {
-	raw := make(map[string]any)
-	if err := conf.Unmarshal(&raw); err != nil {
-		return nil, err
-	}
-
-	parsed := make(map[string]any)
-
-	// To help the defaults kick in, we need iterate over the default map instead of the raw values
-	for k, v := range defaults {
-		sub, err := conf.Sub(k)
-		if err != nil {
-			return nil, fmt.Errorf("cannot read config for %q: %w", k, err)
-		}
-
-		d := v.NewWithDefaults()
-		if err := sub.Unmarshal(&d); err != nil {
-			return nil, fmt.Errorf("cannot merge config for %q: %w", k, err)
-		}
-
-		err = d.Validate()
-		if err != nil {
-			return nil, fmt.Errorf("failed to validate config for for %q: %w", k, err)
-		}
-
-		parsed[k] = d
-	}
-
-	parsedConf := confmap.NewFromStringMap(parsed)
-	config := new(Config)
-	err := parsedConf.Unmarshal(config)
-	if err != nil {
-		return nil, fmt.Errorf("cannot unmarshal config: %w", err)
-	}
-
-	return config, nil
-}

pkg/config/uri.go

@@ -0,0 +1,46 @@
+package config
+
+import (
+	"fmt"
+	"regexp"
+)
+
+var (
+	// uriRegex is a regex that matches the URI format. It complies with the URI definition defined at https://datatracker.ietf.org/doc/html/rfc3986.
+	// The format is "<scheme>:<value>".
+	uriRegex = regexp.MustCompile(`(?s:^(?P<Scheme>[A-Za-z][A-Za-z0-9+.-]+):(?P<Value>.*)$)`)
+)
+
+type Uri struct {
+	scheme string
+	value  string
+}
+
+func NewUri(input string) (Uri, error) {
+	submatches := uriRegex.FindStringSubmatch(input)
+
+	if len(submatches) != 3 {
+		return Uri{}, fmt.Errorf("invalid uri: %q", input)
+	}
+	return Uri{
+		scheme: submatches[1],
+		value:  submatches[2],
+	}, nil
+}
+
+func MustNewUri(input string) Uri {
+	uri, err := NewUri(input)
+	if err != nil {
+		panic(err)
+	}
+
+	return uri
+}
+
+func (uri Uri) Scheme() string {
+	return uri.scheme
+}
+
+func (uri Uri) Value() string {
+	return uri.value
+}

pkg/config/uri_test.go

@@ -0,0 +1,35 @@
+package config
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewUri(t *testing.T) {
+	testCases := []struct {
+		input    string
+		expected Uri
+		pass     bool
+	}{
+		{input: "file:/path/1", expected: Uri{scheme: "file", value: "/path/1"}, pass: true},
+		{input: "file:", expected: Uri{scheme: "file", value: ""}, pass: true},
+		{input: "env:", expected: Uri{scheme: "env", value: ""}, pass: true},
+		{input: "scheme", expected: Uri{}, pass: false},
+	}
+
+	for _, tc := range testCases {
+		uri, err := NewUri(tc.input)
+		if !tc.pass {
+			assert.Error(t, err)
+			continue
+		}
+
+		require.NoError(t, err)
+		assert.NotPanics(t, func() { MustNewUri(tc.input) })
+		assert.Equal(t, tc.expected, uri)
+		assert.Equal(t, tc.expected.Scheme(), uri.scheme)
+		assert.Equal(t, tc.expected.Value(), uri.value)
+	}
+}

pkg/signoz/config.go

@@ -0,0 +1,41 @@
+package signoz
+
+import (
+	"context"
+
+	"go.signoz.io/signoz/pkg/cache"
+	"go.signoz.io/signoz/pkg/config"
+	"go.signoz.io/signoz/pkg/factory"
+	"go.signoz.io/signoz/pkg/instrumentation"
+	"go.signoz.io/signoz/pkg/sqlstore"
+	"go.signoz.io/signoz/pkg/web"
+)
+
+// Config defines the entire configuration of signoz.
+type Config struct {
+	Instrumentation instrumentation.Config `mapstructure:"instrumentation"`
+	Web             web.Config             `mapstructure:"web"`
+	Cache           cache.Config           `mapstructure:"cache"`
+	SQLStore        sqlstore.Config        `mapstructure:"sqlstore"`
+}
+
+func NewConfig(ctx context.Context, resolverConfig config.ResolverConfig) (Config, error) {
+	configFactories := []factory.ConfigFactory{
+		instrumentation.NewConfigFactory(),
+		web.NewConfigFactory(),
+		sqlstore.NewConfigFactory(),
+		cache.NewConfigFactory(),
+	}
+
+	conf, err := config.New(ctx, resolverConfig, configFactories)
+	if err != nil {
+		return Config{}, err
+	}
+
+	var config Config
+	if err := conf.Unmarshal("", &config); err != nil {
+		return Config{}, err
+	}
+
+	return config, nil
+}

pkg/signoz/signoz.go

@@ -15,7 +15,7 @@ type SigNoz struct {
 	Web   web.Web
 }
 
-func New(config *config.Config, skipWebFrontend bool) (*SigNoz, error) {
+func New(config config.Config, skipWebFrontend bool) (*SigNoz, error) {
 	var cache cache.Cache
 
 	// init for the cache