[misc] do not read HOST_IP (#10644)

Signed-off-by: youkaichao <youkaichao@gmail.com>

vllm/envs.py

@@ -153,7 +153,7 @@ environment_variables: Dict[str, Callable[[], Any]] = {
     # If you are using multi-node inference, you should set this differently
     # on each node.
     'VLLM_HOST_IP':
-    lambda: os.getenv('VLLM_HOST_IP', "") or os.getenv("HOST_IP", ""),
+    lambda: os.getenv('VLLM_HOST_IP', ""),
 
     # used in distributed environment to manually set the communication port
     # Note: if VLLM_PORT is set, and some code asks for multiple ports, the

vllm/executor/ray_gpu_executor.py

@@ -216,8 +216,8 @@ class RayGPUExecutor(DistributedGPUExecutor):
                 f"Every node should have a unique IP address. Got {n_nodes}"
                 f" nodes with node ids {list(node_workers.keys())} and "
                 f"{n_ips} unique IP addresses {all_ips}. Please check your"
-                " network configuration. If you set `VLLM_HOST_IP` or "
-                "`HOST_IP` environment variable, make sure it is unique for"
+                " network configuration. If you set `VLLM_HOST_IP`"
+                " environment variable, make sure it is unique for"
                 " each node.")
 
         VLLM_INSTANCE_ID = get_vllm_instance_id()

vllm/executor/ray_hpu_executor.py

@@ -192,8 +192,8 @@ class RayHPUExecutor(DistributedGPUExecutor):
                 f"Every node should have a unique IP address. Got {n_nodes}"
                 f" nodes with node ids {list(node_workers.keys())} and "
                 f"{n_ips} unique IP addresses {all_ips}. Please check your"
-                " network configuration. If you set `VLLM_HOST_IP` or "
-                "`HOST_IP` environment variable, make sure it is unique for"
+                " network configuration. If you set `VLLM_HOST_IP` "
+                "environment variable, make sure it is unique for"
                 " each node.")
 
         VLLM_INSTANCE_ID = get_vllm_instance_id()

vllm/utils.py

@@ -467,6 +467,13 @@ async def collect_from_async_generator(
 
 def get_ip() -> str:
     host_ip = envs.VLLM_HOST_IP
+    if "HOST_IP" in os.environ and "VLLM_HOST_IP" not in os.environ:
+        logger.warning(
+            "The environment variable HOST_IP is deprecated and ignored, as"
+            " it is often used by Docker and other software to"
+            "interact with the container's network stack. Please"
+            "use VLLM_HOST_IP instead to set the IP address for vLLM processes"
+            " to communicate with each other.")
     if host_ip:
         return host_ip