fix: resolve WebUI API proxy ECONNREFUSED and configmap placeholder issues

- Fix route handlers to use API_GATEWAY_URL env var with correct K8s fallback
  instead of localhost:3015
- Replace ${} placeholders in configmap.yaml with actual static values to
  prevent kustomize from overwriting envsubst-generated config
- Separate secrets into dedicated secrets.yaml for envsubst processing
- Update deploy.sh to only envsubst secrets (configmap now has static values)

Made-with: Cursor

backend/deploy/k8s/configmap.yaml

@@ -29,41 +29,24 @@ data:
   OLLAMA_MODEL: "qwen3.5:9b"
   OLLAMA_EMBEDDING_MODEL: "qwen3-embedding:0.6b"
   OLLAMA_NUM_PARALLEL: "2"
-  DEFAULT_LLM_MODEL: "${DEFAULT_LLM_MODEL}"
-  DEFAULT_LLM_PROVIDER: "${DEFAULT_LLM_PROVIDER}"
-  TIMEWEB_API_BASE_URL: "${TIMEWEB_API_BASE_URL}"
-  TIMEWEB_AGENT_ACCESS_ID: "${TIMEWEB_AGENT_ACCESS_ID}"
-  TRAVELPAYOUTS_TOKEN: "${TRAVELPAYOUTS_TOKEN}"
-  NEXT_PUBLIC_ENABLED_ROUTES: "${NEXT_PUBLIC_ENABLED_ROUTES}"
-  NEXT_PUBLIC_TWOGIS_API_KEY: "${NEXT_PUBLIC_TWOGIS_API_KEY}"
-  S3_ENDPOINT: "${S3_ENDPOINT}"
-  S3_ACCESS_KEY: "${S3_ACCESS_KEY}"
-  S3_SECRET_KEY: "${S3_SECRET_KEY}"
-  S3_BUCKET: "${S3_BUCKET}"
-  S3_USE_SSL: "${S3_USE_SSL}"
-  S3_REGION: "${S3_REGION}"
-  S3_PUBLIC_URL: "${S3_PUBLIC_URL}"
-  SMTP_HOST: "${SMTP_HOST}"
-  SMTP_PORT: "${SMTP_PORT}"
-  SMTP_USER: "${SMTP_USER}"
-  SMTP_FROM: "${SMTP_FROM}"
-  SMTP_TLS: "${SMTP_TLS}"
+  DEFAULT_LLM_MODEL: "gpt-4o-mini"
+  DEFAULT_LLM_PROVIDER: "openai"
+  TIMEWEB_API_BASE_URL: "https://api.timeweb.cloud"
+  TIMEWEB_AGENT_ACCESS_ID: "9df5206a-86e8-4c8d-87a7-6b95eb0ecab0"
+  TRAVELPAYOUTS_TOKEN: "83465cb3013f97f6eed45d3567721244"
+  NEXT_PUBLIC_ENABLED_ROUTES: "/travel,/learning,/history,/medicine,/discover"
+  NEXT_PUBLIC_TWOGIS_API_KEY: "e5fd2c5b-a5bc-40ec-94b3-6b5a396ebba0"
+  S3_ENDPOINT: "minio:9000"
+  S3_ACCESS_KEY: "minioadmin"
+  S3_SECRET_KEY: "minioadmin"
+  S3_BUCKET: "gooseek-artifacts"
+  S3_USE_SSL: "false"
+  S3_REGION: "us-east-1"
+  S3_PUBLIC_URL: "https://storage.gooseek.ru"
+  SMTP_HOST: "smtp.timeweb.ru"
+  SMTP_PORT: "465"
+  SMTP_USER: "2fa@gooseek.ru"
+  SMTP_FROM: "GooSeek 2FA <2fa@gooseek.ru>"
+  SMTP_TLS: "true"
   SITE_URL: "https://gooseek.ru"
   SITE_NAME: "GooSeek"
----
-apiVersion: v1
-kind: Secret
-metadata:
-  name: gooseek-secrets
-  namespace: gooseek
-type: Opaque
-stringData:
-  OPENAI_API_KEY: "${OPENAI_API_KEY}"
-  ANTHROPIC_API_KEY: "${ANTHROPIC_API_KEY}"
-  GEMINI_API_KEY: "${GEMINI_API_KEY}"
-  JWT_SECRET: "${JWT_SECRET}"
-  TIMEWEB_API_KEY: "${TIMEWEB_API_KEY}"
-  OLLAMA_API_TOKEN: "${OLLAMA_API_TOKEN}"
-  SMTP_PASSWORD: "${SMTP_PASSWORD}"
-  POSTGRES_USER: "gooseek"
-  POSTGRES_PASSWORD: "gooseek"

backend/deploy/k8s/deploy.sh

@@ -71,12 +71,13 @@ echo "=== Pushing webui to registry ==="
 docker push "$REGISTRY/gooseek/webui:$IMAGE_TAG"
 docker push "$REGISTRY/gooseek/webui:latest"
 
-# Generate configmap/secrets from .env via envsubst
+# Generate secrets from .env via envsubst (configmap has static values)
 echo ""
-echo "=== Generating K8s manifests from .env ==="
+echo "=== Generating K8s secrets from .env ==="
 if command -v envsubst &> /dev/null && [ -f "$ENV_FILE" ]; then
-    envsubst < "$SCRIPT_DIR/configmap.yaml" > "$SCRIPT_DIR/_generated_configmap.yaml"
-    kubectl apply -f "$SCRIPT_DIR/_generated_configmap.yaml" -n gooseek
+    envsubst < "$SCRIPT_DIR/secrets.yaml" > "$SCRIPT_DIR/_generated_secrets.yaml"
+    kubectl apply -f "$SCRIPT_DIR/_generated_secrets.yaml" -n gooseek
+    rm -f "$SCRIPT_DIR/_generated_secrets.yaml"
 
     # Generate monitoring manifests
     envsubst < "$SCRIPT_DIR/monitoring.yaml" > "$SCRIPT_DIR/_generated_monitoring.yaml"

backend/deploy/k8s/secrets.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: gooseek-secrets
+  namespace: gooseek
+type: Opaque
+stringData:
+  OPENAI_API_KEY: "${OPENAI_API_KEY}"
+  ANTHROPIC_API_KEY: "${ANTHROPIC_API_KEY}"
+  GEMINI_API_KEY: "${GEMINI_API_KEY}"
+  JWT_SECRET: "${JWT_SECRET}"
+  TIMEWEB_API_KEY: "${TIMEWEB_API_KEY}"
+  OLLAMA_API_TOKEN: "${OLLAMA_API_TOKEN}"
+  SMTP_PASSWORD: "${SMTP_PASSWORD}"
+  POSTGRES_USER: "gooseek"
+  POSTGRES_PASSWORD: "gooseek"

backend/webui/src/app/api/chat/route.ts

@@ -1,34 +1,41 @@
 import { NextRequest, NextResponse } from 'next/server';
 
-const API_URL = process.env.API_URL || 'http://localhost:3015';
+const API_GATEWAY =
+  process.env.API_GATEWAY_URL ||
+  process.env.API_URL ||
+  'http://api-gateway:3015';
 
 export async function POST(request: NextRequest): Promise<NextResponse> {
-  const targetUrl = `${API_URL}/api/chat`;
+  const targetUrl = `${API_GATEWAY}/api/chat`;
 
   const headers = new Headers();
-  
+
   const authHeader = request.headers.get('authorization');
   if (authHeader) {
     headers.set('Authorization', authHeader);
   }
-  
+
   headers.set('Content-Type', 'application/json');
   headers.set('Accept', 'application/x-ndjson');
 
   try {
     const body = await request.text();
-    
+
     const response = await fetch(targetUrl, {
       method: 'POST',
       headers,
       body,
     });
 
-    const contentType = response.headers.get('content-type') || 'application/x-ndjson';
-    
+    const contentType =
+      response.headers.get('content-type') || 'application/x-ndjson';
+
     const stream = response.body;
     if (!stream) {
-      return NextResponse.json({ error: 'No response body' }, { status: 500 });
+      return NextResponse.json(
+        { error: 'No response body' },
+        { status: 500 },
+      );
     }
 
     return new NextResponse(stream, {
@@ -44,7 +51,7 @@ export async function POST(request: NextRequest): Promise<NextResponse> {
     console.error('[Chat API Proxy] Error:', error);
     return NextResponse.json(
       { error: 'Service unavailable' },
-      { status: 503 }
+      { status: 503 },
     );
   }
 }

backend/webui/src/app/api/v1/[...path]/route.ts

@@ -1,6 +1,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 
-const API_URL = process.env.API_URL || 'http://localhost:3015';
+const API_URL =
+  process.env.API_GATEWAY_URL ||
+  process.env.API_URL ||
+  'http://api-gateway:3015';
 
 async function proxyRequest(
   request: NextRequest,