diff --git a/config/config.go b/config/config.go
index bfd79e85..f46f862b 100644
--- a/config/config.go
+++ b/config/config.go
@@ -48,22 +48,39 @@ import (
 )
 
 // Configer defines how to get and set value from configuration raw data.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type Configer interface {
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	Set(key, val string) error   //support section::key type in given key when using ini type.
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	String(key string) string    //support section::key type in key string when using ini and json type; Int,Int64,Bool,Float,DIY are same.
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	Strings(key string) []string //get string slice
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	Int(key string) (int, error)
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	Int64(key string) (int64, error)
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	Bool(key string) (bool, error)
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	Float(key string) (float64, error)
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DefaultString(key string, defaultVal string) string      // support section::key type in key string when using ini and json type; Int,Int64,Bool,Float,DIY are same.
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DefaultStrings(key string, defaultVal []string) []string //get string slice
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DefaultInt(key string, defaultVal int) int
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DefaultInt64(key string, defaultVal int64) int64
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DefaultBool(key string, defaultVal bool) bool
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DefaultFloat(key string, defaultVal float64) float64
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	DIY(key string) (interface{}, error)
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	GetSection(section string) (map[string]string, error)
+	// Deprecated: using pkg/config, we will delete this in v2.1.0
 	SaveConfigFile(filename string) error
 }
 
diff --git a/config/env/env.go b/config/env/env.go
index 34f094fe..1a6c2527 100644
--- a/config/env/env.go
+++ b/config/env/env.go
@@ -36,6 +36,7 @@ func init() {
 
 // Get returns a value by key.
 // If the key does not exist, the default value will be returned.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func Get(key string, defVal string) string {
 	if val := env.Get(key); val != nil {
 		return val.(string)
@@ -45,6 +46,7 @@ func Get(key string, defVal string) string {
 
 // MustGet returns a value by key.
 // If the key does not exist, it will return an error.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func MustGet(key string) (string, error) {
 	if val := env.Get(key); val != nil {
 		return val.(string), nil
@@ -54,12 +56,14 @@ func MustGet(key string) (string, error) {
 
 // Set sets a value in the ENV copy.
 // This does not affect the child process environment.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func Set(key string, value string) {
 	env.Set(key, value)
 }
 
 // MustSet sets a value in the ENV copy and the child process environment.
 // It returns an error in case the set operation failed.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func MustSet(key string, value string) error {
 	err := os.Setenv(key, value)
 	if err != nil {
@@ -70,6 +74,7 @@ func MustSet(key string, value string) error {
 }
 
 // GetAll returns all keys/values in the current child process environment.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func GetAll() map[string]string {
 	items := env.Items()
 	envs := make(map[string]string, env.Count())
diff --git a/config/fake.go b/config/fake.go
index d21ab820..07e56ce2 100644
--- a/config/fake.go
+++ b/config/fake.go
@@ -27,16 +27,16 @@ type fakeConfigContainer struct {
 func (c *fakeConfigContainer) getData(key string) string {
 	return c.data[strings.ToLower(key)]
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) Set(key, val string) error {
 	c.data[strings.ToLower(key)] = val
 	return nil
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) String(key string) string {
 	return c.getData(key)
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DefaultString(key string, defaultval string) string {
 	v := c.String(key)
 	if v == "" {
@@ -44,7 +44,7 @@ func (c *fakeConfigContainer) DefaultString(key string, defaultval string) strin
 	}
 	return v
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) Strings(key string) []string {
 	v := c.String(key)
 	if v == "" {
@@ -52,7 +52,7 @@ func (c *fakeConfigContainer) Strings(key string) []string {
 	}
 	return strings.Split(v, ";")
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DefaultStrings(key string, defaultval []string) []string {
 	v := c.Strings(key)
 	if v == nil {
@@ -60,11 +60,11 @@ func (c *fakeConfigContainer) DefaultStrings(key string, defaultval []string) []
 	}
 	return v
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) Int(key string) (int, error) {
 	return strconv.Atoi(c.getData(key))
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DefaultInt(key string, defaultval int) int {
 	v, err := c.Int(key)
 	if err != nil {
@@ -72,11 +72,11 @@ func (c *fakeConfigContainer) DefaultInt(key string, defaultval int) int {
 	}
 	return v
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) Int64(key string) (int64, error) {
 	return strconv.ParseInt(c.getData(key), 10, 64)
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 	v, err := c.Int64(key)
 	if err != nil {
@@ -84,11 +84,11 @@ func (c *fakeConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 	}
 	return v
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) Bool(key string) (bool, error) {
 	return ParseBool(c.getData(key))
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DefaultBool(key string, defaultval bool) bool {
 	v, err := c.Bool(key)
 	if err != nil {
@@ -96,11 +96,11 @@ func (c *fakeConfigContainer) DefaultBool(key string, defaultval bool) bool {
 	}
 	return v
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) Float(key string) (float64, error) {
 	return strconv.ParseFloat(c.getData(key), 64)
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 	v, err := c.Float(key)
 	if err != nil {
@@ -108,18 +108,18 @@ func (c *fakeConfigContainer) DefaultFloat(key string, defaultval float64) float
 	}
 	return v
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) DIY(key string) (interface{}, error) {
 	if v, ok := c.data[strings.ToLower(key)]; ok {
 		return v, nil
 	}
 	return nil, errors.New("key not find")
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) GetSection(section string) (map[string]string, error) {
 	return nil, errors.New("not implement in the fakeConfigContainer")
 }
-
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *fakeConfigContainer) SaveConfigFile(filename string) error {
 	return errors.New("not implement in the fakeConfigContainer")
 }
@@ -127,6 +127,7 @@ func (c *fakeConfigContainer) SaveConfigFile(filename string) error {
 var _ Configer = new(fakeConfigContainer)
 
 // NewFakeConfig return a fake Configer
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func NewFakeConfig() Configer {
 	return &fakeConfigContainer{
 		data: make(map[string]string),
diff --git a/config/ini.go b/config/ini.go
index 002e5e05..1da293dc 100644
--- a/config/ini.go
+++ b/config/ini.go
@@ -41,10 +41,12 @@ var (
 )
 
 // IniConfig implements Config to parse ini file.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type IniConfig struct {
 }
 
 // Parse creates a new Config and parses the file configuration from the named file.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (ini *IniConfig) Parse(name string) (Configer, error) {
 	return ini.parseFile(name)
 }
@@ -208,6 +210,7 @@ func (ini *IniConfig) parseData(dir string, data []byte) (*IniConfigContainer, e
 // ParseData parse ini the data
 // When include other.conf,other.conf is either absolute directory
 // or under beego in default temporary directory(/tmp/beego[-username]).
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (ini *IniConfig) ParseData(data []byte) (Configer, error) {
 	dir := "beego"
 	currentUser, err := user.Current()
@@ -224,6 +227,7 @@ func (ini *IniConfig) ParseData(data []byte) (Configer, error) {
 
 // IniConfigContainer A Config represents the ini configuration.
 // When set and get value, support key as section:name type.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type IniConfigContainer struct {
 	data           map[string]map[string]string // section=> key:val
 	sectionComment map[string]string            // section : comment
@@ -232,12 +236,14 @@ type IniConfigContainer struct {
 }
 
 // Bool returns the boolean value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) Bool(key string) (bool, error) {
 	return ParseBool(c.getdata(key))
 }
 
 // DefaultBool returns the boolean value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DefaultBool(key string, defaultval bool) bool {
 	v, err := c.Bool(key)
 	if err != nil {
@@ -247,12 +253,14 @@ func (c *IniConfigContainer) DefaultBool(key string, defaultval bool) bool {
 }
 
 // Int returns the integer value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) Int(key string) (int, error) {
 	return strconv.Atoi(c.getdata(key))
 }
 
 // DefaultInt returns the integer value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DefaultInt(key string, defaultval int) int {
 	v, err := c.Int(key)
 	if err != nil {
@@ -262,12 +270,14 @@ func (c *IniConfigContainer) DefaultInt(key string, defaultval int) int {
 }
 
 // Int64 returns the int64 value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) Int64(key string) (int64, error) {
 	return strconv.ParseInt(c.getdata(key), 10, 64)
 }
 
 // DefaultInt64 returns the int64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 	v, err := c.Int64(key)
 	if err != nil {
@@ -277,12 +287,14 @@ func (c *IniConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 }
 
 // Float returns the float value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) Float(key string) (float64, error) {
 	return strconv.ParseFloat(c.getdata(key), 64)
 }
 
 // DefaultFloat returns the float64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 	v, err := c.Float(key)
 	if err != nil {
@@ -292,12 +304,14 @@ func (c *IniConfigContainer) DefaultFloat(key string, defaultval float64) float6
 }
 
 // String returns the string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) String(key string) string {
 	return c.getdata(key)
 }
 
 // DefaultString returns the string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DefaultString(key string, defaultval string) string {
 	v := c.String(key)
 	if v == "" {
@@ -308,6 +322,7 @@ func (c *IniConfigContainer) DefaultString(key string, defaultval string) string
 
 // Strings returns the []string value for a given key.
 // Return nil if config value does not exist or is empty.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) Strings(key string) []string {
 	v := c.String(key)
 	if v == "" {
@@ -318,6 +333,7 @@ func (c *IniConfigContainer) Strings(key string) []string {
 
 // DefaultStrings returns the []string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DefaultStrings(key string, defaultval []string) []string {
 	v := c.Strings(key)
 	if v == nil {
@@ -327,6 +343,7 @@ func (c *IniConfigContainer) DefaultStrings(key string, defaultval []string) []s
 }
 
 // GetSection returns map for the given section
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) GetSection(section string) (map[string]string, error) {
 	if v, ok := c.data[section]; ok {
 		return v, nil
@@ -337,6 +354,7 @@ func (c *IniConfigContainer) GetSection(section string) (map[string]string, erro
 // SaveConfigFile save the config into file.
 //
 // BUG(env): The environment variable config item will be saved with real value in SaveConfigFile Function.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) SaveConfigFile(filename string) (err error) {
 	// Write configuration file by filename.
 	f, err := os.Create(filename)
@@ -437,6 +455,7 @@ func (c *IniConfigContainer) SaveConfigFile(filename string) (err error) {
 // Set writes a new value for key.
 // if write to one section, the key need be "section::key".
 // if the section is not existed, it panics.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) Set(key, value string) error {
 	c.Lock()
 	defer c.Unlock()
@@ -465,6 +484,7 @@ func (c *IniConfigContainer) Set(key, value string) error {
 }
 
 // DIY returns the raw value by a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *IniConfigContainer) DIY(key string) (v interface{}, err error) {
 	if v, ok := c.data[strings.ToLower(key)]; ok {
 		return v, nil
diff --git a/config/json.go b/config/json.go
index c4ef25cd..74a50d34 100644
--- a/config/json.go
+++ b/config/json.go
@@ -26,10 +26,12 @@ import (
 )
 
 // JSONConfig is a json config parser and implements Config interface.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type JSONConfig struct {
 }
 
 // Parse returns a ConfigContainer with parsed json config map.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (js *JSONConfig) Parse(filename string) (Configer, error) {
 	file, err := os.Open(filename)
 	if err != nil {
@@ -45,6 +47,7 @@ func (js *JSONConfig) Parse(filename string) (Configer, error) {
 }
 
 // ParseData returns a ConfigContainer with json string
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (js *JSONConfig) ParseData(data []byte) (Configer, error) {
 	x := &JSONConfigContainer{
 		data: make(map[string]interface{}),
@@ -66,12 +69,14 @@ func (js *JSONConfig) ParseData(data []byte) (Configer, error) {
 
 // JSONConfigContainer A Config represents the json configuration.
 // Only when get value, support key as section:name type.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type JSONConfigContainer struct {
 	data map[string]interface{}
 	sync.RWMutex
 }
 
 // Bool returns the boolean value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) Bool(key string) (bool, error) {
 	val := c.getData(key)
 	if val != nil {
@@ -82,6 +87,7 @@ func (c *JSONConfigContainer) Bool(key string) (bool, error) {
 
 // DefaultBool return the bool value if has no error
 // otherwise return the defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DefaultBool(key string, defaultval bool) bool {
 	if v, err := c.Bool(key); err == nil {
 		return v
@@ -90,6 +96,7 @@ func (c *JSONConfigContainer) DefaultBool(key string, defaultval bool) bool {
 }
 
 // Int returns the integer value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) Int(key string) (int, error) {
 	val := c.getData(key)
 	if val != nil {
@@ -105,6 +112,7 @@ func (c *JSONConfigContainer) Int(key string) (int, error) {
 
 // DefaultInt returns the integer value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DefaultInt(key string, defaultval int) int {
 	if v, err := c.Int(key); err == nil {
 		return v
@@ -113,6 +121,7 @@ func (c *JSONConfigContainer) DefaultInt(key string, defaultval int) int {
 }
 
 // Int64 returns the int64 value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) Int64(key string) (int64, error) {
 	val := c.getData(key)
 	if val != nil {
@@ -126,6 +135,7 @@ func (c *JSONConfigContainer) Int64(key string) (int64, error) {
 
 // DefaultInt64 returns the int64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 	if v, err := c.Int64(key); err == nil {
 		return v
@@ -134,6 +144,7 @@ func (c *JSONConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 }
 
 // Float returns the float value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) Float(key string) (float64, error) {
 	val := c.getData(key)
 	if val != nil {
@@ -147,6 +158,7 @@ func (c *JSONConfigContainer) Float(key string) (float64, error) {
 
 // DefaultFloat returns the float64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 	if v, err := c.Float(key); err == nil {
 		return v
@@ -155,6 +167,7 @@ func (c *JSONConfigContainer) DefaultFloat(key string, defaultval float64) float
 }
 
 // String returns the string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) String(key string) string {
 	val := c.getData(key)
 	if val != nil {
@@ -167,6 +180,7 @@ func (c *JSONConfigContainer) String(key string) string {
 
 // DefaultString returns the string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DefaultString(key string, defaultval string) string {
 	// TODO FIXME should not use "" to replace non existence
 	if v := c.String(key); v != "" {
@@ -176,6 +190,7 @@ func (c *JSONConfigContainer) DefaultString(key string, defaultval string) strin
 }
 
 // Strings returns the []string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) Strings(key string) []string {
 	stringVal := c.String(key)
 	if stringVal == "" {
@@ -186,6 +201,7 @@ func (c *JSONConfigContainer) Strings(key string) []string {
 
 // DefaultStrings returns the []string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DefaultStrings(key string, defaultval []string) []string {
 	if v := c.Strings(key); v != nil {
 		return v
@@ -194,6 +210,7 @@ func (c *JSONConfigContainer) DefaultStrings(key string, defaultval []string) []
 }
 
 // GetSection returns map for the given section
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) GetSection(section string) (map[string]string, error) {
 	if v, ok := c.data[section]; ok {
 		return v.(map[string]string), nil
@@ -202,6 +219,7 @@ func (c *JSONConfigContainer) GetSection(section string) (map[string]string, err
 }
 
 // SaveConfigFile save the config into file
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) SaveConfigFile(filename string) (err error) {
 	// Write configuration file by filename.
 	f, err := os.Create(filename)
@@ -218,6 +236,7 @@ func (c *JSONConfigContainer) SaveConfigFile(filename string) (err error) {
 }
 
 // Set writes a new value for key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) Set(key, val string) error {
 	c.Lock()
 	defer c.Unlock()
@@ -226,6 +245,7 @@ func (c *JSONConfigContainer) Set(key, val string) error {
 }
 
 // DIY returns the raw value by a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) DIY(key string) (v interface{}, err error) {
 	val := c.getData(key)
 	if val != nil {
@@ -235,6 +255,7 @@ func (c *JSONConfigContainer) DIY(key string) (v interface{}, err error) {
 }
 
 // section.key or key
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *JSONConfigContainer) getData(key string) interface{} {
 	if len(key) == 0 {
 		return nil
diff --git a/config/xml/xml.go b/config/xml/xml.go
index 494242d3..1601561f 100644
--- a/config/xml/xml.go
+++ b/config/xml/xml.go
@@ -46,9 +46,11 @@ import (
 // Config is a xml config parser and implements Config interface.
 // xml configurations should be included in <config></config> tag.
 // only support key/value pair as <key>value</key> as each item.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type Config struct{}
 
 // Parse returns a ConfigContainer with parsed xml config map.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (xc *Config) Parse(filename string) (config.Configer, error) {
 	context, err := ioutil.ReadFile(filename)
 	if err != nil {
@@ -59,6 +61,7 @@ func (xc *Config) Parse(filename string) (config.Configer, error) {
 }
 
 // ParseData xml data
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (xc *Config) ParseData(data []byte) (config.Configer, error) {
 	x := &ConfigContainer{data: make(map[string]interface{})}
 
@@ -73,12 +76,14 @@ func (xc *Config) ParseData(data []byte) (config.Configer, error) {
 }
 
 // ConfigContainer A Config represents the xml configuration.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type ConfigContainer struct {
 	data map[string]interface{}
 	sync.Mutex
 }
 
 // Bool returns the boolean value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Bool(key string) (bool, error) {
 	if v := c.data[key]; v != nil {
 		return config.ParseBool(v)
@@ -88,6 +93,7 @@ func (c *ConfigContainer) Bool(key string) (bool, error) {
 
 // DefaultBool return the bool value if has no error
 // otherwise return the defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultBool(key string, defaultval bool) bool {
 	v, err := c.Bool(key)
 	if err != nil {
@@ -97,12 +103,14 @@ func (c *ConfigContainer) DefaultBool(key string, defaultval bool) bool {
 }
 
 // Int returns the integer value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Int(key string) (int, error) {
 	return strconv.Atoi(c.data[key].(string))
 }
 
 // DefaultInt returns the integer value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultInt(key string, defaultval int) int {
 	v, err := c.Int(key)
 	if err != nil {
@@ -112,12 +120,14 @@ func (c *ConfigContainer) DefaultInt(key string, defaultval int) int {
 }
 
 // Int64 returns the int64 value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Int64(key string) (int64, error) {
 	return strconv.ParseInt(c.data[key].(string), 10, 64)
 }
 
 // DefaultInt64 returns the int64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 	v, err := c.Int64(key)
 	if err != nil {
@@ -128,12 +138,14 @@ func (c *ConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 }
 
 // Float returns the float value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Float(key string) (float64, error) {
 	return strconv.ParseFloat(c.data[key].(string), 64)
 }
 
 // DefaultFloat returns the float64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 	v, err := c.Float(key)
 	if err != nil {
@@ -143,6 +155,7 @@ func (c *ConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 }
 
 // String returns the string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) String(key string) string {
 	if v, ok := c.data[key].(string); ok {
 		return v
@@ -152,6 +165,7 @@ func (c *ConfigContainer) String(key string) string {
 
 // DefaultString returns the string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultString(key string, defaultval string) string {
 	v := c.String(key)
 	if v == "" {
@@ -161,6 +175,7 @@ func (c *ConfigContainer) DefaultString(key string, defaultval string) string {
 }
 
 // Strings returns the []string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Strings(key string) []string {
 	v := c.String(key)
 	if v == "" {
@@ -171,6 +186,7 @@ func (c *ConfigContainer) Strings(key string) []string {
 
 // DefaultStrings returns the []string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultStrings(key string, defaultval []string) []string {
 	v := c.Strings(key)
 	if v == nil {
@@ -180,6 +196,7 @@ func (c *ConfigContainer) DefaultStrings(key string, defaultval []string) []stri
 }
 
 // GetSection returns map for the given section
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) GetSection(section string) (map[string]string, error) {
 	if v, ok := c.data[section].(map[string]interface{}); ok {
 		mapstr := make(map[string]string)
@@ -192,6 +209,7 @@ func (c *ConfigContainer) GetSection(section string) (map[string]string, error)
 }
 
 // SaveConfigFile save the config into file
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) SaveConfigFile(filename string) (err error) {
 	// Write configuration file by filename.
 	f, err := os.Create(filename)
@@ -208,6 +226,7 @@ func (c *ConfigContainer) SaveConfigFile(filename string) (err error) {
 }
 
 // Set writes a new value for key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Set(key, val string) error {
 	c.Lock()
 	defer c.Unlock()
@@ -216,6 +235,7 @@ func (c *ConfigContainer) Set(key, val string) error {
 }
 
 // DIY returns the raw value by a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DIY(key string) (v interface{}, err error) {
 	if v, ok := c.data[key]; ok {
 		return v, nil
diff --git a/config/yaml/yaml.go b/config/yaml/yaml.go
index a5644c7b..725f905b 100644
--- a/config/yaml/yaml.go
+++ b/config/yaml/yaml.go
@@ -45,9 +45,11 @@ import (
 )
 
 // Config is a yaml config parser and implements Config interface.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type Config struct{}
 
 // Parse returns a ConfigContainer with parsed yaml config map.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (yaml *Config) Parse(filename string) (y config.Configer, err error) {
 	cnf, err := ReadYmlReader(filename)
 	if err != nil {
@@ -60,6 +62,7 @@ func (yaml *Config) Parse(filename string) (y config.Configer, err error) {
 }
 
 // ParseData parse yaml data
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (yaml *Config) ParseData(data []byte) (config.Configer, error) {
 	cnf, err := parseYML(data)
 	if err != nil {
@@ -73,6 +76,7 @@ func (yaml *Config) ParseData(data []byte) (config.Configer, error) {
 
 // ReadYmlReader Read yaml file to map.
 // if json like, use json package, unless goyaml2 package.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func ReadYmlReader(path string) (cnf map[string]interface{}, err error) {
 	buf, err := ioutil.ReadFile(path)
 	if err != nil {
@@ -117,12 +121,14 @@ func parseYML(buf []byte) (cnf map[string]interface{}, err error) {
 }
 
 // ConfigContainer A Config represents the yaml configuration.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 type ConfigContainer struct {
 	data map[string]interface{}
 	sync.RWMutex
 }
 
 // Bool returns the boolean value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Bool(key string) (bool, error) {
 	v, err := c.getData(key)
 	if err != nil {
@@ -133,6 +139,7 @@ func (c *ConfigContainer) Bool(key string) (bool, error) {
 
 // DefaultBool return the bool value if has no error
 // otherwise return the defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultBool(key string, defaultval bool) bool {
 	v, err := c.Bool(key)
 	if err != nil {
@@ -142,6 +149,7 @@ func (c *ConfigContainer) DefaultBool(key string, defaultval bool) bool {
 }
 
 // Int returns the integer value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Int(key string) (int, error) {
 	if v, err := c.getData(key); err != nil {
 		return 0, err
@@ -155,6 +163,7 @@ func (c *ConfigContainer) Int(key string) (int, error) {
 
 // DefaultInt returns the integer value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultInt(key string, defaultval int) int {
 	v, err := c.Int(key)
 	if err != nil {
@@ -164,6 +173,7 @@ func (c *ConfigContainer) DefaultInt(key string, defaultval int) int {
 }
 
 // Int64 returns the int64 value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Int64(key string) (int64, error) {
 	if v, err := c.getData(key); err != nil {
 		return 0, err
@@ -175,6 +185,7 @@ func (c *ConfigContainer) Int64(key string) (int64, error) {
 
 // DefaultInt64 returns the int64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 	v, err := c.Int64(key)
 	if err != nil {
@@ -184,6 +195,7 @@ func (c *ConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
 }
 
 // Float returns the float value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Float(key string) (float64, error) {
 	if v, err := c.getData(key); err != nil {
 		return 0.0, err
@@ -199,6 +211,7 @@ func (c *ConfigContainer) Float(key string) (float64, error) {
 
 // DefaultFloat returns the float64 value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 	v, err := c.Float(key)
 	if err != nil {
@@ -208,6 +221,7 @@ func (c *ConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
 }
 
 // String returns the string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) String(key string) string {
 	if v, err := c.getData(key); err == nil {
 		if vv, ok := v.(string); ok {
@@ -219,6 +233,7 @@ func (c *ConfigContainer) String(key string) string {
 
 // DefaultString returns the string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultString(key string, defaultval string) string {
 	v := c.String(key)
 	if v == "" {
@@ -228,6 +243,7 @@ func (c *ConfigContainer) DefaultString(key string, defaultval string) string {
 }
 
 // Strings returns the []string value for a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Strings(key string) []string {
 	v := c.String(key)
 	if v == "" {
@@ -238,6 +254,7 @@ func (c *ConfigContainer) Strings(key string) []string {
 
 // DefaultStrings returns the []string value for a given key.
 // if err != nil return defaultval
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DefaultStrings(key string, defaultval []string) []string {
 	v := c.Strings(key)
 	if v == nil {
@@ -247,6 +264,7 @@ func (c *ConfigContainer) DefaultStrings(key string, defaultval []string) []stri
 }
 
 // GetSection returns map for the given section
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) GetSection(section string) (map[string]string, error) {
 
 	if v, ok := c.data[section]; ok {
@@ -256,6 +274,7 @@ func (c *ConfigContainer) GetSection(section string) (map[string]string, error)
 }
 
 // SaveConfigFile save the config into file
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) SaveConfigFile(filename string) (err error) {
 	// Write configuration file by filename.
 	f, err := os.Create(filename)
@@ -268,6 +287,7 @@ func (c *ConfigContainer) SaveConfigFile(filename string) (err error) {
 }
 
 // Set writes a new value for key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) Set(key, val string) error {
 	c.Lock()
 	defer c.Unlock()
@@ -276,6 +296,7 @@ func (c *ConfigContainer) Set(key, val string) error {
 }
 
 // DIY returns the raw value by a given key.
+// Deprecated: using pkg/config, we will delete this in v2.1.0
 func (c *ConfigContainer) DIY(key string) (v interface{}, err error) {
 	return c.getData(key)
 }