[Feature] Simple Improve Health Check Mechanism for Production-Grade Stability (#8115)

Signed-off-by: ybyang <ybyang7@iflytek.com>

python/sglang/srt/utils.py

@@ -93,6 +93,22 @@ time_infos = {}
 HIP_FP8_E4M3_FNUZ_MAX = 224.0
 
 
+class ServerStatus(Enum):
+    Up = "Up"
+    Starting = "Starting"
+    UnHealthy = "UnHealthy"
+    Crashed = "Crashed"
+
+    def is_healthy(self) -> bool:
+        return self == ServerStatus.Up
+
+
+def report_health(status: ServerStatus, host: str, http_port: int, msg: str = ""):
+    requests.post(
+        f"http://{host}:{http_port}/health", json={"status": status.value, "msg": msg}
+    )
+
+
 # https://pytorch.org/docs/stable/notes/hip.html#checking-for-hip
 def is_hip() -> bool:
     return torch.version.hip is not None