Fix ZFS pool detection: bind-mount host zpool binary and libs

services/zfs.py

@@ -4,6 +4,9 @@ import logging
 
 logger = logging.getLogger(__name__)
 
+# Allow overriding the zpool binary path via env (for bind-mounted host tools)
+ZPOOL_BIN = os.environ.get("ZPOOL_BIN", "zpool")
+
 
 async def get_zfs_pool_map() -> dict[str, str]:
     """Return a dict mapping device names to ZFS pool names.
@@ -13,7 +16,7 @@ async def get_zfs_pool_map() -> dict[str, str]:
     pool_map = {}
     try:
         proc = await asyncio.create_subprocess_exec(
-            "zpool", "status", "-P",
+            ZPOOL_BIN, "status", "-P",
             stdout=asyncio.subprocess.PIPE,
             stderr=asyncio.subprocess.PIPE,
         )