Node-RED服务器关机与重启方法

1. 配置 sudo 权限

首先确保已经在 /etc/sudoers 文件中添加了这行配置：

# 使用 visudo 命令编辑（推荐）
sudo visudo

# 添加以下行
nodereduser ALL=(ALL) NOPASSWD: /sbin/shutdown, /sbin/reboot, /sbin/poweroff

2. Node-RED 中的使用方法
使用 exec 节点（推荐）

[
    {
        "id": "shutdown-inject",
        "type": "inject",
        "z": "20cd0d1a69d7d697",
        "name": "关机",
        "props": [
            {
                "p": "payload",
                "v": "shutdown",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "x": 370,
        "y": 320,
        "wires": [
            [
                "shutdown-exec"
            ]
        ]
    },
    {
        "id": "shutdown-exec",
        "type": "exec",
        "z": "20cd0d1a69d7d697",
        "command": "sudo shutdown -h now",
        "addpay": false,
        "append": "",
        "useSpawn": "false",
        "name": "执行关机",
        "x": 570,
        "y": 320,
        "wires": [
            [],
            [],
            []
        ]
    },
    {
        "id": "reboot-inject",
        "type": "inject",
        "z": "20cd0d1a69d7d697",
        "name": "重启",
        "props": [
            {
                "p": "payload",
                "v": "reboot",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "x": 370,
        "y": 420,
        "wires": [
            [
                "reboot-exec"
            ]
        ]
    },
    {
        "id": "reboot-exec",
        "type": "exec",
        "z": "20cd0d1a69d7d697",
        "command": "sudo reboot",
        "addpay": false,
        "append": "",
        "useSpawn": "false",
        "name": "执行重启",
        "x": 570,
        "y": 420,
        "wires": [
            [],
            [],
            []
        ]
    }
]