refactor(tunnel): 移除直连tunnel模式，统一使用Hub转发

- 删除 TunnelTransport 及 TunnelManager 相关引用，所有 tunnel 请求统一走 Hub
- 简化 health_scheduler，不再依赖进程内 TunnelManager 状态判断节点在线
- 简化 resolver，移除本地 tunnel miss 判断与多 worker 告警逻辑
- 简化 service 中 tunnel 连通性检测，统一以 DB 状态为准
- 启动/关闭流程移除 hub_enabled 分支，始终初始化 Hub 连接
- Rust 端 RequestMeta.timeout 增加浮点数反序列化支持，Python 端确保发送整数

aether-proxy/src/tunnel/protocol.rs

@@ -144,7 +144,7 @@ pub struct RequestMeta {
     pub method: String,
     pub url: String,
     pub headers: std::collections::HashMap<String, String>,
-    #[serde(default = "default_timeout")]
+    #[serde(default = "default_timeout", deserialize_with = "deserialize_timeout")]
     pub timeout: u64,
 }
 
@@ -152,6 +152,36 @@ fn default_timeout() -> u64 {
     60
 }
 
+fn deserialize_timeout<'de, D>(deserializer: D) -> Result<u64, D::Error>
+where
+    D: serde::Deserializer<'de>,
+{
+    #[derive(serde::Deserialize)]
+    #[serde(untagged)]
+    enum TimeoutValue {
+        Int(u64),
+        Float(f64),
+    }
+
+    match <TimeoutValue as serde::Deserialize>::deserialize(deserializer)? {
+        TimeoutValue::Int(v) => Ok(v),
+        TimeoutValue::Float(v) => {
+            if !v.is_finite() || v < 0.0 {
+                return Err(serde::de::Error::custom(
+                    "timeout must be a non-negative finite number",
+                ));
+            }
+            if v.fract() != 0.0 {
+                return Err(serde::de::Error::custom("timeout must be integer seconds"));
+            }
+            if v > (u64::MAX as f64) {
+                return Err(serde::de::Error::custom("timeout is too large"));
+            }
+            Ok(v as u64)
+        }
+    }
+}
+
 /// JSON payload for RESPONSE_HEADERS frames.
 #[derive(Debug, serde::Serialize)]
 pub struct ResponseMeta {
@@ -209,3 +239,23 @@ fn compress_gzip(data: &[u8]) -> Result<Bytes, std::io::Error> {
     let compressed = encoder.finish()?;
     Ok(Bytes::from(compressed))
 }
+
+#[cfg(test)]
+mod tests {
+    use super::RequestMeta;
+
+    #[test]
+    fn request_meta_accepts_integer_timeout() {
+        let raw = br#"{"method":"GET","url":"https://example.com","headers":{},"timeout":15}"#;
+        let meta: RequestMeta = serde_json::from_slice(raw).expect("parse request meta");
+        assert_eq!(meta.timeout, 15);
+    }
+
+    #[test]
+    fn request_meta_accepts_integer_like_float_timeout() {
+        let raw =
+            br#"{"method":"GET","url":"https://example.com","headers":{},"timeout":15.0}"#;
+        let meta: RequestMeta = serde_json::from_slice(raw).expect("parse request meta");
+        assert_eq!(meta.timeout, 15);
+    }
+}

src/main.py

@@ -515,11 +515,6 @@ app.include_router(dashboard_router)  # 仪表盘端点
 app.include_router(public_router)  # 公开API端点（用户可查看提供商和模型）
 app.include_router(monitoring_router)  # 监控端点
 
-# WebSocket 隧道端点（aether-proxy tunnel 模式）
-from src.api.admin.proxy_tunnel import router as proxy_tunnel_router
-
-app.include_router(proxy_tunnel_router)
-
 
 def main() -> Any:
     # 初始化新日志系统

src/modules/proxy_nodes/__init__.py

@@ -23,9 +23,8 @@ if TYPE_CHECKING:
 def _reset_tunnel_connected_on_startup() -> None:
     """服务端启动时将所有 tunnel_connected=True 的节点重置为 False/OFFLINE。
 
-    服务端重启后 TunnelManager 内存状态丢失，但 DB 中可能残留
-    tunnel_connected=True 的记录。如果不重置，health_scheduler 会错误地
-    将这些节点标记为 ONLINE，而实际上 tunnel 并未连接。
+    服务端重启后 DB 中可能残留 tunnel_connected=True 的记录。
+    如果不重置，节点会在 Hub 状态广播到来前短暂显示 ONLINE。
     """
     from datetime import datetime, timezone
 
@@ -78,37 +77,27 @@ async def _on_startup() -> None:
 
     from src.config import config
     from src.services.proxy_node.health_scheduler import get_proxy_node_health_scheduler
-    from src.services.proxy_node.hub_config import get_hub_config
     from src.utils.task_coordinator import StartupTaskCoordinator
 
     logger = logging.getLogger("aether.modules.proxy_nodes")
-    hub_enabled = get_hub_config().enabled
 
-    if config.worker_processes > 1 and not hub_enabled:
-        logger.warning(
-            "检测到 WEB_CONCURRENCY={}。Proxy tunnel 连接是进程内资源，"
-            "多 worker 场景可能出现节点显示 ONLINE 但当前 worker 无可用 tunnel 的情况。"
-            "建议设置 GUNICORN_WORKERS/WEB_CONCURRENCY=1。",
-            config.worker_processes,
-        )
-    elif config.worker_processes > 1 and hub_enabled:
+    if config.worker_processes > 1:
         logger.info(
-            "检测到 WEB_CONCURRENCY={}，Hub 模式已启用，允许多 worker 共享 tunnel。",
+            "检测到 WEB_CONCURRENCY={}，Hub 模式允许多 worker 共享 tunnel。",
             config.worker_processes,
         )
 
-    # Hub 模式下，worker 启动时主动建立 /worker 长连接：
+    # 启动时主动建立 /worker 长连接：
     # - 立即接收 NODE_STATUS 广播，避免“proxy 已连但 UI 仍显示离线”的窗口期
     # - 确保后续 tunnel 请求不需要首请求触发懒连接
-    if hub_enabled:
-        from src.services.proxy_node.hub_transport import get_hub_connection_manager
+    from src.services.proxy_node.hub_transport import get_hub_connection_manager
 
-        try:
-            await get_hub_connection_manager().ensure_connected()
-            logger.info("Hub worker channel initialized on startup")
-        except Exception as e:
-            # ensure_connected 失败时内部会启动重连循环，这里仅记录告警不阻塞启动
-            logger.warning("Hub worker channel init failed, reconnecting in background: {}", e)
+    try:
+        await get_hub_connection_manager().ensure_connected()
+        logger.info("Hub worker channel initialized on startup")
+    except Exception as e:
+        # ensure_connected 失败时内部会启动重连循环，这里仅记录告警不阻塞启动
+        logger.warning("Hub worker channel init failed, reconnecting in background: {}", e)
 
     from src.clients import get_redis_client
 
@@ -132,22 +121,13 @@ async def _on_shutdown() -> None:
     import logging
 
     from src.services.proxy_node.health_scheduler import get_proxy_node_health_scheduler
-    from src.services.proxy_node.hub_config import get_hub_config
     from src.utils.task_coordinator import StartupTaskCoordinator
 
     logger = logging.getLogger("aether.modules.proxy_nodes")
 
-    hub_enabled = get_hub_config().enabled
-    if hub_enabled:
-        from src.services.proxy_node.hub_transport import shutdown_hub_connection_manager
+    from src.services.proxy_node.hub_transport import shutdown_hub_connection_manager
 
-        await shutdown_hub_connection_manager()
-    else:
-        # 先向所有 tunnel 连接发送 GoAway，让 proxy 端立即重连到其他 worker
-        from src.services.proxy_node.tunnel_manager import get_tunnel_manager
-
-        manager = get_tunnel_manager()
-        await manager.shutdown_all()
+    await shutdown_hub_connection_manager()
 
     from src.clients import get_redis_client
 

src/services/proxy_node/health_scheduler.py

@@ -2,7 +2,7 @@
 ProxyNode 心跳检测调度器
 
 定期检查 proxy_nodes 的连接健康状态，更新节点状态：
-- 本地 TunnelManager 观测到连接 -> ONLINE（自愈）
+- 心跳正常且 tunnel_connected=True -> ONLINE（自愈）
 - 心跳超时（跨 worker 共享信号） -> OFFLINE
 """
 
@@ -83,15 +83,11 @@ class ProxyNodeHealthScheduler:
             await self._cleanup_old_events()
 
     async def _check_heartbeats(self) -> None:
-        from src.services.proxy_node.tunnel_manager import get_tunnel_manager
-
-        manager = get_tunnel_manager()
         db = create_session()
         try:
             now = datetime.now(timezone.utc)
             # 检查所有非手动节点（手动节点无心跳，始终保持 ONLINE）
-            # 包括 OFFLINE 节点：tunnel 重连后如果 _update_tunnel_status 失败，
-            # 健康检查需要能根据 TunnelManager 内存状态将其恢复为 ONLINE
+            # 包括 OFFLINE 节点：心跳恢复后可自愈
             nodes = (
                 db.query(ProxyNode)
                 .filter(
@@ -104,23 +100,6 @@ class ProxyNodeHealthScheduler:
 
             changed = 0
             for node in nodes:
-                # 注意：TunnelManager 仅是当前 worker 的进程内状态，跨 worker 不共享。
-                # 因此“本地无 tunnel”不能直接判定 OFFLINE（可能连接在其他 worker）。
-                # OFFLINE 统一由心跳超时判定，避免多进程误判。
-                actually_connected_local = manager.has_tunnel(node.id)
-
-                if actually_connected_local:
-                    if not node.tunnel_connected:
-                        node.tunnel_connected = True
-                        node.tunnel_connected_at = now
-                        changed += 1
-                    if node.status != ProxyNodeStatus.ONLINE:
-                        node.status = ProxyNodeStatus.ONLINE
-                        node.updated_at = now
-                        changed += 1
-                    continue
-
-                # 本地无 tunnel：仅在心跳超时时标记 OFFLINE
                 if heartbeat_is_stale(node, now):
                     if node.tunnel_connected:
                         node.tunnel_connected = False
@@ -130,6 +109,13 @@ class ProxyNodeHealthScheduler:
                         node.status = ProxyNodeStatus.OFFLINE
                         node.updated_at = now
                         changed += 1
+                    continue
+
+                # 心跳正常且连接状态为已连时，确保 ONLINE（自愈状态不一致）
+                if node.tunnel_connected and node.status != ProxyNodeStatus.ONLINE:
+                    node.status = ProxyNodeStatus.ONLINE
+                    node.updated_at = now
+                    changed += 1
 
             if changed:
                 db.commit()

src/services/proxy_node/hub_transport.py

@@ -465,7 +465,7 @@ class HubConnectionManager:
                     "method": method,
                     "url": url,
                     "headers": headers,
-                    "timeout": timeout,
+                    "timeout": int(timeout),
                 },
                 ensure_ascii=False,
                 separators=(",", ":"),

src/services/proxy_node/resolver.py

@@ -10,7 +10,6 @@ from __future__ import annotations
 import gzip
 import hashlib
 import json
-import os
 import time
 from typing import Any
 from urllib.parse import quote, urlparse
@@ -27,55 +26,7 @@ from src.core.logger import logger
 _proxy_node_cache: dict[str, tuple[dict[str, Any] | None, float]] = {}
 _PROXY_NODE_CACHE_TTL_SECONDS = 15.0
 _PROXY_NODE_CACHE_NEGATIVE_TTL_SECONDS = 5.0  # 不可用节点使用更短的 TTL，加速恢复感知
-_PROXY_NODE_CACHE_TUNNEL_LOCAL_MISS_TTL_SECONDS = 0.5  # 本地 worker 无 tunnel 时，快速重试
 _PROXY_NODE_CACHE_MAX_SIZE = 256
-_TUNNEL_LOCAL_MISS_LOG_COOLDOWN_SECONDS = 30.0
-_tunnel_local_miss_log_next_at: dict[str, float] = {}
-
-
-def _is_hub_mode_enabled() -> bool:
-    from src.services.proxy_node.hub_config import get_hub_config
-
-    return get_hub_config().enabled
-
-
-def _build_tunnel_local_miss_message(node_id: str) -> str:
-    """构建“当前 worker 无本地 tunnel”的用户可读错误信息。"""
-    return (
-        f"代理节点 {node_id} 当前 worker 无 tunnel 连接（pid={os.getpid()}）。"
-        "这通常发生在多 worker 部署（WEB_CONCURRENCY/GUNICORN_WORKERS > 1）时。"
-        "请设置 GUNICORN_WORKERS=1（或 WEB_CONCURRENCY=1），"
-        "或确保每个 worker 都建立该节点的 tunnel 连接。"
-    )
-
-
-def _is_tunnel_local_miss(node_id: str) -> bool:
-    """判断节点是否“全局在线但当前 worker 无本地 tunnel 连接”。
-
-    仅在错误路径调用（build_proxy_url 解析失败时），用于提供更准确的报错信息。
-    """
-    if _is_hub_mode_enabled():
-        return False
-
-    from src.database import create_session
-    from src.models.database import ProxyNode, ProxyNodeStatus
-    from src.services.proxy_node.tunnel_manager import get_tunnel_manager
-
-    db = create_session()
-    try:
-        node = db.query(ProxyNode).filter(ProxyNode.id == node_id).first()
-        if not node:
-            return False
-        if node.is_manual or not node.tunnel_mode:
-            return False
-        if node.status != ProxyNodeStatus.ONLINE:
-            return False
-        manager = get_tunnel_manager()
-        return not manager.has_tunnel(node_id)
-    except Exception:
-        return False
-    finally:
-        db.close()
 
 
 def _get_proxy_node_info(node_id: str) -> dict[str, Any] | None:
@@ -116,41 +67,14 @@ def _get_proxy_node_info(node_id: str) -> dict[str, Any] | None:
             _proxy_node_cache[node_id] = (None, now + _PROXY_NODE_CACHE_NEGATIVE_TTL_SECONDS)
             return None
 
-        # tunnel 模式节点：
-        # - Hub 模式：信任 DB 的 tunnel_connected/status（由 Hub 广播统一维护）
-        # - 非 Hub 模式：以当前 worker 本地 TunnelManager 状态为准
+        # tunnel 模式节点：统一以 DB 的 tunnel_connected/status 为准（由 Hub 广播维护）
         if node.tunnel_mode and not node.is_manual:
-            if _is_hub_mode_enabled():
-                if node.status != ProxyNodeStatus.ONLINE or not bool(node.tunnel_connected):
-                    _proxy_node_cache[node_id] = (
-                        None,
-                        now + _PROXY_NODE_CACHE_NEGATIVE_TTL_SECONDS,
-                    )
-                    return None
-            else:
-                from src.services.proxy_node.tunnel_manager import get_tunnel_manager
-
-                manager = get_tunnel_manager()
-                if not manager.has_tunnel(node_id):
-                    # 多 worker 部署时，DB 可能显示 ONLINE（其他 worker 有 tunnel），
-                    # 但当前 worker 无本地连接，请求仍不可用。记录限频告警便于定位。
-                    if now >= _tunnel_local_miss_log_next_at.get(node_id, 0.0):
-                        _tunnel_local_miss_log_next_at[node_id] = (
-                            now + _TUNNEL_LOCAL_MISS_LOG_COOLDOWN_SECONDS
-                        )
-                        logger.warning(
-                            "tunnel node {} has no local connection on pid={} "
-                            "(db_status={}, db_tunnel_connected={}), request may fail on this worker",
-                            node_id,
-                            os.getpid(),
-                            str(getattr(node, "status", "unknown")),
-                            bool(getattr(node, "tunnel_connected", False)),
-                        )
-                    _proxy_node_cache[node_id] = (
-                        None,
-                        now + _PROXY_NODE_CACHE_TUNNEL_LOCAL_MISS_TTL_SECONDS,
-                    )
-                    return None
+            if node.status != ProxyNodeStatus.ONLINE or not bool(node.tunnel_connected):
+                _proxy_node_cache[node_id] = (
+                    None,
+                    now + _PROXY_NODE_CACHE_NEGATIVE_TTL_SECONDS,
+                )
+                return None
             value: dict[str, Any] = {
                 "name": node.name,
                 "ip": node.ip,
@@ -199,7 +123,6 @@ _SYSTEM_PROXY_CACHE_TTL = 60.0
 def invalidate_proxy_node_cache(node_id: str) -> None:
     """主动清除指定节点的信息缓存（tunnel 断开时调用，避免使用过期的连接状态）"""
     _proxy_node_cache.pop(node_id, None)
-    _tunnel_local_miss_log_next_at.pop(node_id, None)
 
 
 def invalidate_system_proxy_cache() -> None:
@@ -509,11 +432,7 @@ def build_proxy_url(proxy_config: dict[str, Any]) -> str | None:
         node_info = _get_proxy_node_info(node_id)
         if not node_info:
             logger.warning("代理节点不可用（离线或不存在）: node_id={}", node_id)
-            message = (
-                _build_tunnel_local_miss_message(node_id)
-                if _is_tunnel_local_miss(node_id)
-                else f"代理节点 {node_id} 不可用"
-            )
+            message = f"代理节点 {node_id} 不可用"
             raise ProxyNodeUnavailableError(message, node_id=node_id)
 
         # 手动节点：直接使用存储的代理 URL（含认证信息）

src/services/proxy_node/service.py

@@ -556,38 +556,14 @@ class ProxyNodeService:
 
         # tunnel 节点：通过 WebSocket tunnel 测试
         if not node.is_manual:
-            from src.services.proxy_node.hub_config import get_hub_config
-
-            hub_enabled = get_hub_config().enabled
-            connected = False
-            if hub_enabled:
-                connected = bool(node.tunnel_connected) and node.status == ProxyNodeStatus.ONLINE
-            else:
-                # 非 Hub 模式：以当前 worker 本地 TunnelManager 状态为准，
-                # 避免多 worker 场景的跨进程状态误判。
-                from src.services.proxy_node.tunnel_manager import get_tunnel_manager
-
-                manager = get_tunnel_manager()
-                connected = manager.has_tunnel(node.id)
+            connected = bool(node.tunnel_connected) and node.status == ProxyNodeStatus.ONLINE
 
             if not connected:
-                hint = ""
-                try:
-                    from src.config import config
-
-                    if config.worker_processes > 1 and not hub_enabled:
-                        hint = (
-                            "（当前 worker 无 tunnel 连接；检测到多 worker 部署，"
-                            "建议设置 GUNICORN_WORKERS/WEB_CONCURRENCY=1）"
-                        )
-                except Exception:
-                    # 配置读取失败时保持原始错误，避免影响主流程
-                    hint = ""
                 return {
                     "success": False,
                     "latency_ms": None,
                     "exit_ip": None,
-                    "error": f"tunnel 未连接{hint}",
+                    "error": "tunnel 未连接",
                 }
             result = await _test_tunnel_connectivity(node.id)
 

src/services/proxy_node/tunnel_transport.py

@@ -1,135 +1,15 @@
 """
 Tunnel httpx Transport
 
-自定义 httpx AsyncBaseTransport，将 HTTP 请求通过 WebSocket tunnel 发送到 aether-proxy。
-对 handler 层完全透明 -- 只需在创建 httpx.AsyncClient 时使用此 transport。
+统一通过 aether-hub 转发 tunnel 请求。
 """
 
 from __future__ import annotations
 
-import asyncio
-from typing import TYPE_CHECKING, Any
-
-if TYPE_CHECKING:
-    from collections.abc import AsyncGenerator
+from typing import Any
 
 import httpx
 
-from .tunnel_manager import TunnelManager, TunnelStreamError, _StreamState, get_tunnel_manager
-
-_HOP_BY_HOP_HEADERS = frozenset(
-    {
-        "host",
-        "transfer-encoding",
-        "content-length",
-        "connection",
-        "upgrade",
-        "keep-alive",
-        "proxy-authorization",
-        "proxy-connection",
-        "te",
-        "trailer",
-    }
-)
-
-# bytes 版本，用于直接比较 httpx raw headers（key 已经是小写 bytes）
-_HOP_BY_HOP_HEADERS_BYTES = frozenset(h.encode("ascii") for h in _HOP_BY_HOP_HEADERS)
-
-
-class TunnelTransport(httpx.AsyncBaseTransport):
-    """通过 WebSocket tunnel 发送请求的 httpx transport"""
-
-    def __init__(self, node_id: str, timeout: float = 60.0) -> None:
-        self._node_id = node_id
-        self._timeout = timeout
-
-    async def handle_async_request(self, request: httpx.Request) -> httpx.Response:
-        manager = get_tunnel_manager()
-
-        # 构建 headers dict（跳过 hop-by-hop 和 httpx 内部 headers）
-        # request.headers.raw 返回 (bytes, bytes) 元组，key 已经是小写
-        headers: dict[str, str] = {}
-        for key, value in request.headers.raw:
-            if key not in _HOP_BY_HOP_HEADERS_BYTES:
-                headers[key.decode("latin-1")] = value.decode("latin-1")
-
-        # 读取 body -- request.content 在 json= 传参时已由 httpx 序列化好；
-        # 对 stream 类型的 request 需要先 read() 才能拿到完整 content。
-        body = request.content or await request.aread() or None
-
-        stream_state: _StreamState | None = None
-        try:
-            stream_state = await manager.send_request(
-                self._node_id,
-                method=request.method,
-                url=str(request.url),
-                headers=headers,
-                body=body,
-                timeout=self._timeout,
-            )
-
-            # 等待响应头
-            await stream_state.wait_headers(timeout=self._timeout)
-
-            # 构建 httpx.Response（流式 body）
-            resp_headers = httpx.Headers(stream_state.headers)
-
-            return httpx.Response(
-                status_code=stream_state.status,
-                headers=resp_headers,
-                stream=TunnelResponseStream(
-                    manager, self._node_id, stream_state, timeout=self._timeout
-                ),
-            )
-
-        except TunnelStreamError as e:
-            self._cleanup_stream(manager, stream_state)
-            # 区分连接阶段和响应阶段的错误
-            if stream_state and stream_state.status > 0:
-                raise httpx.ReadError(str(e)) from e
-            raise httpx.ConnectError(str(e)) from e
-        except asyncio.TimeoutError:
-            self._cleanup_stream(manager, stream_state)
-            raise httpx.ReadTimeout("tunnel request timeout") from None
-
-    def _cleanup_stream(self, manager: TunnelManager, stream_state: _StreamState | None) -> None:
-        if stream_state is None:
-            return
-        # 优先从 stream 记住的原始连接上移除，避免连接池竞态
-        conn = stream_state._conn
-        if conn is None:
-            conn = manager.get_connection(self._node_id)
-        if conn:
-            conn.remove_stream(stream_state.stream_id)
-
-
-class TunnelResponseStream(httpx.AsyncByteStream):
-    """将 tunnel stream 的 body chunks 包装为 httpx AsyncByteStream"""
-
-    def __init__(
-        self,
-        manager: TunnelManager,
-        node_id: str,
-        stream_state: _StreamState,
-        timeout: float = 60.0,
-    ) -> None:
-        self._manager = manager
-        self._node_id = node_id
-        self._stream_state = stream_state
-        self._timeout = timeout
-
-    async def __aiter__(self) -> AsyncGenerator[bytes, None]:
-        async for chunk in self._stream_state.iter_body(chunk_timeout=self._timeout):
-            yield chunk
-
-    async def aclose(self) -> None:
-        # 从 stream 记住的原始连接上精确移除，避免连接池竞态
-        conn = self._stream_state._conn
-        if conn is None:
-            conn = self._manager.get_connection(self._node_id)
-        if conn:
-            conn.remove_stream(self._stream_state.stream_id)
-
 
 def is_tunnel_node(node_info: dict[str, Any] | None) -> bool:
     """检查节点是否为 tunnel 模式且已连接"""
@@ -139,12 +19,7 @@ def is_tunnel_node(node_info: dict[str, Any] | None) -> bool:
 
 
 def create_tunnel_transport(node_id: str, timeout: float = 60.0) -> httpx.AsyncBaseTransport:
-    """根据配置创建 tunnel transport（Hub 模式或直连 tunnel 模式）。"""
-    from .hub_config import get_hub_config
+    """创建统一的 Hub tunnel transport。"""
+    from .hub_transport import HubTunnelTransport
 
-    hub_cfg = get_hub_config()
-    if hub_cfg.enabled:
-        from .hub_transport import HubTunnelTransport
-
-        return HubTunnelTransport(node_id, timeout=timeout)
-    return TunnelTransport(node_id, timeout=timeout)
+    return HubTunnelTransport(node_id, timeout=timeout)

tests/unit/test_tunnel_hub_factory.py

@@ -1,29 +1,9 @@
-import pytest
-
-from src.services.proxy_node.hub_config import reset_hub_config_cache
 from src.services.proxy_node.hub_transport import HubTunnelTransport
 from src.services.proxy_node.tunnel_protocol import Frame, MsgType
-from src.services.proxy_node.tunnel_transport import TunnelTransport, create_tunnel_transport
+from src.services.proxy_node.tunnel_transport import create_tunnel_transport
 
 
-def test_create_tunnel_transport_uses_legacy_transport_when_hub_disabled(
-    monkeypatch: pytest.MonkeyPatch,
-) -> None:
-    monkeypatch.setenv("DOCKER_CONTAINER", "false")
-    monkeypatch.setattr("src.services.proxy_node.hub_config.os.path.exists", lambda _: False)
-    reset_hub_config_cache()
-
-    transport = create_tunnel_transport("node-1", timeout=12.0)
-    assert isinstance(transport, TunnelTransport)
-
-
-def test_create_tunnel_transport_uses_hub_transport_when_hub_enabled(
-    monkeypatch: pytest.MonkeyPatch,
-) -> None:
-    monkeypatch.setenv("DOCKER_CONTAINER", "true")
-    monkeypatch.setattr("src.services.proxy_node.hub_config.os.path.exists", lambda _: False)
-    reset_hub_config_cache()
-
+def test_create_tunnel_transport_always_uses_hub_transport() -> None:
     transport = create_tunnel_transport("node-1", timeout=12.0)
     assert isinstance(transport, HubTunnelTransport)