Fix: Use TEI_BASE_URL then TEI_HOST (#21021)

docker/.env

@@ -336,7 +336,7 @@ TEI_IMAGE_GPU=infiniflow/text-embeddings-inference:1.8
 # - `BAAI/bge-small-en-v1.5` (requires 1.2GB RAM/vRAM to load)
 TEI_MODEL=${TEI_MODEL:-Qwen/Qwen3-Embedding-0.6B}
 
-# The embedding service port:
+# The embedding service hostname inside the Docker network:
 TEI_HOST=tei
 # The port used to expose the TEI service to the host machine,
 # allowing EXTERNAL access to the service running inside the Docker container.

internal/common/environments.go

@@ -240,6 +240,7 @@ const (
 	EnvChunkFeedbackWeighting            = "CHUNK_FEEDBACK_WEIGHTING"
 	EnvComposeProfiles                   = "COMPOSE_PROFILES"
 	EnvTEIModel                          = "TEI_MODEL"
+	EnvTEIHost                           = "TEI_HOST"
 	EnvTEIBaseURL                        = "TEI_BASE_URL"
 	EnvRAGFlowConfDir                    = "RAGFLOW_CONF_DIR"
 	EnvRAGProjectBase                    = "RAG_PROJECT_BASE"

internal/entity/models/builtin.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"net"
 	"net/http"
 	"ragflow/internal/common"
 	"strings"
@@ -20,6 +21,11 @@ type BuiltinModel struct {
 
 // NewBuiltinModel creates a new Builtin model instance
 func NewBuiltinModel(baseURL, model string) *BuiltinModel {
+	if baseURL == "" {
+		host := getEnv(common.EnvTEIHost, "tei")
+		baseURL = getEnv(common.EnvTEIBaseURL, "http://"+net.JoinHostPort(host, "80"))
+	}
+
 	return &BuiltinModel{
 		baseURL:    baseURL,
 		model:      model,
@@ -52,12 +58,7 @@ func (b *BuiltinModel) Embed(ctx context.Context, modelName *string, request Emb
 		return []EmbeddingData{}, nil
 	}
 
-	baseURL := b.baseURL
-	if baseURL == "" {
-		baseURL = "http://localhost:6380"
-	}
-
-	url := fmt.Sprintf("%s/embed", baseURL)
+	url := fmt.Sprintf("%s/embed", b.baseURL)
 
 	reqBody := map[string]interface{}{
 		"inputs": request.Texts,
@@ -169,13 +170,7 @@ func (b *BuiltinModel) ShowTask(ctx context.Context, taskID string, apiConfig *A
 
 // GetBuiltinEmbeddingModel returns a Builtin model driver for the given model name
 func GetBuiltinEmbeddingModel(modelName string) ModelDriver {
-	// Get TEI base URL from environment or config
-	// Default to port 6380 where docker-tei-cpu-1 maps internal port 80
-	teiBaseURL := getEnv(common.EnvTEIBaseURL, "http://localhost:6380")
-
-	// Create a builtin model instance with TEI endpoint
-	driver := NewBuiltinModel(teiBaseURL, modelName)
-	return driver
+	return NewBuiltinModel("", modelName)
 }
 
 // getEnv is a helper to get environment variable with default