enginex-mlu370-compat: vllm_wrapper.sh

vllm_wrapper.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# vllm_wrapper.sh —— 拦截 vllm 二进制，启动前做兼容修补后再交给真实 vllm
+#
+# 设计照搬社区已上线引擎 zhengzhongwei/vLLM-Iluvatar_bi-100-opt 的做法：
+# 把镜像里的 `vllm` 换成本脚本（真身改名 vllm_real），平台下发的
+# `vllm serve /model --port 80 ...` 就会自然流经这里，**不需要平台改命令**。
+#
+# 只在 `vllm serve <目录>` 这一种形态上做修补，其余子命令原样透传。
+set -u
+
+# 与 zhengzhongwei/vLLM-Iluvatar_bi-100-opt 一致的真身路径；Dockerfile 里 vllm -> *_real
+REAL=/usr/local/corex/lib64/python3/dist-packages/bin/vllm_real
+PREFLIGHT=/opt/preflight.py
+
+if [ "${1:-}" = "serve" ] && [ -n "${2:-}" ]; then
+    MODEL_DIR="$2"
+    shift 2
+
+    EXTRA=""
+    if [ -f "$PREFLIGHT" ]; then
+        # preflight 失败也绝不阻断：只打日志，按原命令跑
+        if python3 "$PREFLIGHT" --model "$MODEL_DIR" --out /tmp/mhxc_preflight.json \
+                >/tmp/mhxc_preflight.out 2>/tmp/mhxc_preflight.err; then
+            EXTRA=$(python3 - /tmp/mhxc_preflight.json <<'PY'
+import json, sys, shlex
+try:
+    with open(sys.argv[1], encoding="utf-8") as f:
+        d = json.load(f)
+    print(" ".join(shlex.quote(a) for a in (d.get("extra_args") or [])))
+except Exception:
+    print("")
+PY
+)
+        else
+            echo "[vllm_wrapper] preflight 非 0 退出，按原命令继续"
+        fi
+        sed 's/^/[vllm_wrapper] /' /tmp/mhxc_preflight.err 2>/dev/null || true
+    fi
+
+    echo "[vllm_wrapper] model=$MODEL_DIR extra=${EXTRA:-（无）}"
+    echo "[vllm_wrapper] exec: vllm_real serve $MODEL_DIR $EXTRA $*"
+    # shellcheck disable=SC2086
+    exec "$REAL" serve "$MODEL_DIR" $EXTRA "$@"
+fi
+
+exec "$REAL" "$@"