systemd/test/TEST-64-UDEV-STORAGE/multipath_basic_failover.configure

#!/usr/bin/python3
# SPDX-License-Identifier: LGPL-2.1-or-later

import json
import sys


config = json.load(sys.stdin)

# Add 16 multipath devices, each backed by 4 paths
# We don't use --qemu-drive for this since they have to share the file.
for ndisk in range(16):
    wwn = f"0xDEADDEADBEEF{ndisk:04d}"
    if ndisk == 0:
        size = "16M"
    else:
        size = "1M"

    for nback in range(4):
        id = f"drive{ndisk}x{nback}"
        config["QemuDrives"] += [
            {
                "Id": id,
                "Size": size,
                "Options": "cache=unsafe",
                "FileId": str(ndisk),
            }
        ]
        config["QemuArgs"] += ["-device", f"scsi-hd,drive={id},serial=MPIO{ndisk},wwn={wwn}"]

json.dump(config, sys.stdout)