diff --git a/src/replication/adapter/harbor/base/adapter.go b/src/replication/adapter/harbor/base/adapter.go
index 81ba23f29..b1804b7ee 100644
--- a/src/replication/adapter/harbor/base/adapter.go
+++ b/src/replication/adapter/harbor/base/adapter.go
@@ -17,6 +17,7 @@ package base
 import (
 	"errors"
 	"net/http"
+	"os"
 	"strconv"
 	"strings"
 
@@ -32,7 +33,7 @@ import (
 
 // New creates an instance of the base adapter
 func New(registry *model.Registry) (*Adapter, error) {
-	if isLocalHarbor(registry) {
+	if isLocalHarbor(registry.URL) {
 		authorizer := common_http_auth.NewSecretAuthorizer(registry.Credential.AccessSecret)
 		httpClient := common_http.NewClient(&http.Client{
 			Transport: common_http.GetHTTPTransport(common_http.SecureTransport),
@@ -266,6 +267,11 @@ type Project struct {
 	Metadata map[string]interface{} `json:"metadata"`
 }
 
-func isLocalHarbor(registry *model.Registry) bool {
-	return registry.Type == model.RegistryTypeHarbor && registry.Name == "Local"
+func isLocalHarbor(url string) bool {
+	return url == os.Getenv("CORE_URL")
+}
+
+// check whether the current process is running inside core
+func isInCore() bool {
+	return len(os.Getenv("EXT_ENDPOINT")) > 0
 }
diff --git a/src/replication/adapter/harbor/base/chart_registry.go b/src/replication/adapter/harbor/base/chart_registry.go
index 28ffdacd4..b262b73d6 100644
--- a/src/replication/adapter/harbor/base/chart_registry.go
+++ b/src/replication/adapter/harbor/base/chart_registry.go
@@ -54,7 +54,7 @@ func (a *Adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error
 
 	resources := []*model.Resource{}
 	for _, project := range projects {
-		url := fmt.Sprintf("%s/api/chartrepo/%s/charts", a.url, project.Name)
+		url := fmt.Sprintf("%s/api/chartrepo/%s/charts", a.Client.GetURL(), project.Name)
 		repositories := []*model.Repository{}
 		if err := a.httpClient.Get(url, &repositories); err != nil {
 			return nil, err
@@ -72,7 +72,7 @@ func (a *Adapter) FetchCharts(filters []*model.Filter) ([]*model.Resource, error
 
 		for _, repository := range repositories {
 			name := strings.SplitN(repository.Name, "/", 2)[1]
-			url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s", a.url, project.Name, name)
+			url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s", a.Client.GetURL(), project.Name, name)
 			versions := []*chartVersion{}
 			if err := a.httpClient.Get(url, &versions); err != nil {
 				return nil, err
@@ -134,7 +134,7 @@ func (a *Adapter) getChartInfo(name, version string) (*chartVersionDetail, error
 	if err != nil {
 		return nil, err
 	}
-	url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s/%s", a.url, project, name, version)
+	url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s/%s", a.Client.GetURL(), project, name, version)
 	info := &chartVersionDetail{}
 	if err = a.httpClient.Get(url, info); err != nil {
 		return nil, err
@@ -158,7 +158,7 @@ func (a *Adapter) DownloadChart(name, version string) (io.ReadCloser, error) {
 		if err != nil {
 			return nil, err
 		}
-		url = fmt.Sprintf("%s/chartrepo/%s/%s", a.url, project, url)
+		url = fmt.Sprintf("%s/chartrepo/%s/%s", a.Client.GetURL(), project, url)
 	}
 	req, err := http.NewRequest(http.MethodGet, url, nil)
 	if err != nil {
@@ -196,7 +196,7 @@ func (a *Adapter) UploadChart(name, version string, chart io.Reader) error {
 	}
 	w.Close()
 
-	url := fmt.Sprintf("%s/api/chartrepo/%s/charts", a.url, project)
+	url := fmt.Sprintf("%s/api/chartrepo/%s/charts", a.Client.GetURL(), project)
 
 	req, err := http.NewRequest(http.MethodPost, url, buf)
 	if err != nil {
@@ -228,7 +228,7 @@ func (a *Adapter) DeleteChart(name, version string) error {
 	if err != nil {
 		return err
 	}
-	url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s/%s", a.url, project, name, version)
+	url := fmt.Sprintf("%s/api/chartrepo/%s/charts/%s/%s", a.Client.GetURL(), project, name, version)
 	return a.httpClient.Delete(url)
 }
 
diff --git a/src/replication/adapter/harbor/base/client.go b/src/replication/adapter/harbor/base/client.go
index 4f740ed00..0f16871e8 100644
--- a/src/replication/adapter/harbor/base/client.go
+++ b/src/replication/adapter/harbor/base/client.go
@@ -48,7 +48,7 @@ func (c *Client) GetAPIVersion() (string, error) {
 	version := &struct {
 		Version string `json:"version"`
 	}{}
-	err := c.C.Get(c.URL+"/api/version", version)
+	err := c.C.Get(c.GetURL()+"/api/version", version)
 	if err == nil {
 		return version.Version, nil
 	}
@@ -64,7 +64,7 @@ func (c *Client) ChartRegistryEnabled() (bool, error) {
 	sys := &struct {
 		ChartRegistryEnabled bool `json:"with_chartmuseum"`
 	}{}
-	if err := c.C.Get(c.BaseURL()+"/systeminfo", sys); err != nil {
+	if err := c.C.Get(c.BasePath()+"/systeminfo", sys); err != nil {
 		return false, err
 	}
 	return sys.ChartRegistryEnabled, nil
@@ -75,7 +75,7 @@ func (c *Client) ListLabels() ([]string, error) {
 	labels := []*struct {
 		Name string `json:"name"`
 	}{}
-	err := c.C.Get(c.BaseURL()+"/labels?scope=g", &labels)
+	err := c.C.Get(c.BasePath()+"/labels?scope=g", &labels)
 	if err == nil {
 		var lbs []string
 		for _, label := range labels {
@@ -99,13 +99,13 @@ func (c *Client) CreateProject(name string, metadata map[string]interface{}) err
 		Name:     name,
 		Metadata: metadata,
 	}
-	return c.C.Post(c.BaseURL()+"/projects", project)
+	return c.C.Post(c.BasePath()+"/projects", project)
 }
 
 // ListProjects lists projects
 func (c *Client) ListProjects(name string) ([]*Project, error) {
 	projects := []*Project{}
-	url := fmt.Sprintf("%s/projects?name=%s", c.BaseURL(), name)
+	url := fmt.Sprintf("%s/projects?name=%s", c.BasePath(), name)
 	if err := c.C.GetAndIteratePagination(url, &projects); err != nil {
 		return nil, err
 	}
@@ -126,10 +126,27 @@ func (c *Client) GetProject(name string) (*Project, error) {
 	return nil, nil
 }
 
-// BaseURL returns the base URL of APIs
-func (c *Client) BaseURL() string {
-	if len(c.APIVersion) == 0 {
-		return fmt.Sprintf("%s/api", c.URL)
+// BasePath returns the API base path that contains version part
+func (c *Client) BasePath() string {
+	path := fmt.Sprintf("%s/api", c.GetURL())
+	if len(c.APIVersion) > 0 {
+		path = fmt.Sprintf("%s/%s", path, c.APIVersion)
 	}
-	return fmt.Sprintf("%s/api/%s", c.URL, c.APIVersion)
+	return path
+}
+
+// GetURL returns the URL of the registry that the client is for
+func (c *Client) GetURL() string {
+	if !isLocalHarbor(c.URL) || !isInCore() {
+		return c.URL
+	}
+	// if the adapter is created for local Harbor and the process is running
+	// inside core, returns the "127.0.0.1" as URL to avoid the issue:
+	// https://github.com/goharbor/harbor-helm/issues/222
+	// when harbor is deployed on Kubernetes with hairpin mode disabled
+	url := "http://127.0.0.1:8080"
+	if common_http.InternalTLSEnabled() {
+		url = "https://127.0.0.1:8443"
+	}
+	return url
 }
diff --git a/src/replication/adapter/harbor/v1/client.go b/src/replication/adapter/harbor/v1/client.go
index 763347967..72e78cc2e 100644
--- a/src/replication/adapter/harbor/v1/client.go
+++ b/src/replication/adapter/harbor/v1/client.go
@@ -28,7 +28,7 @@ type client struct {
 
 func (c *client) listRepositories(project *base.Project) ([]*model.Repository, error) {
 	repositories := []*models.RepoRecord{}
-	url := fmt.Sprintf("%s/repositories?project_id=%d", c.BaseURL(), project.ID)
+	url := fmt.Sprintf("%s/repositories?project_id=%d", c.BasePath(), project.ID)
 	if err := c.C.GetAndIteratePagination(url, &repositories); err != nil {
 		return nil, err
 	}
@@ -43,7 +43,7 @@ func (c *client) listRepositories(project *base.Project) ([]*model.Repository, e
 }
 
 func (c *client) listArtifacts(repository string) ([]*model.Artifact, error) {
-	url := fmt.Sprintf("%s/repositories/%s/tags", c.BaseURL(), repository)
+	url := fmt.Sprintf("%s/repositories/%s/tags", c.BasePath(), repository)
 	tags := []*struct {
 		Name   string `json:"name"`
 		Labels []*struct {
@@ -68,6 +68,6 @@ func (c *client) listArtifacts(repository string) ([]*model.Artifact, error) {
 }
 
 func (c *client) deleteManifest(repository, reference string) error {
-	url := fmt.Sprintf("%s/repositories/%s/tags/%s", c.BaseURL(), repository, reference)
+	url := fmt.Sprintf("%s/repositories/%s/tags/%s", c.BasePath(), repository, reference)
 	return c.C.Delete(url)
 }
diff --git a/src/replication/adapter/harbor/v2/client.go b/src/replication/adapter/harbor/v2/client.go
index f9a585ca3..5affb3bff 100644
--- a/src/replication/adapter/harbor/v2/client.go
+++ b/src/replication/adapter/harbor/v2/client.go
@@ -31,7 +31,7 @@ type client struct {
 
 func (c *client) listRepositories(project *base.Project) ([]*model.Repository, error) {
 	repositories := []*models.RepoRecord{}
-	url := fmt.Sprintf("%s/projects/%s/repositories", c.BaseURL(), project.Name)
+	url := fmt.Sprintf("%s/projects/%s/repositories", c.BasePath(), project.Name)
 	if err := c.C.GetAndIteratePagination(url, &repositories); err != nil {
 		return nil, err
 	}
@@ -49,7 +49,7 @@ func (c *client) listArtifacts(repository string) ([]*model.Artifact, error) {
 	project, repository := utils.ParseRepository(repository)
 	repository = url.PathEscape(url.PathEscape(repository))
 	url := fmt.Sprintf("%s/projects/%s/repositories/%s/artifacts?with_label=true",
-		c.BaseURL(), project, repository)
+		c.BasePath(), project, repository)
 	artifacts := []*artifact.Artifact{}
 	if err := c.C.GetAndIteratePagination(url, &artifacts); err != nil {
 		return nil, err
@@ -75,6 +75,6 @@ func (c *client) deleteTag(repository, tag string) error {
 	project, repository := utils.ParseRepository(repository)
 	repository = url.PathEscape(url.PathEscape(repository))
 	url := fmt.Sprintf("%s/projects/%s/repositories/%s/artifacts/%s/tags/%s",
-		c.BaseURL(), project, repository, tag, tag)
+		c.BasePath(), project, repository, tag, tag)
 	return c.C.Delete(url)
 }