function cloudTab() {
    return {
        title: 'Cloud 集群',
        tab: [
            {
                type: 'wrapper',
                size: 'none',
                body: [
                    {
                        type: 'button',
                        label: 'Eureka',
                        actionType: 'link',
                        url: 'http://132.122.116.142:35670',
                        blank: true,
                    }
                ],
            },
            {type: 'divider'},
            {
                type: 'crud',
                title: '服务列表',
                api: '${base}/cloud/list',
                source: '$items',
                headerToolbar: ['reload'],
                columns: [
                    {name: 'name', label: '名称'},
                    {
                        name: 'serviceId',
                        label: '服务',
                        width: 100,
                    },
                    {name: 'url', label: '地址', width: 200},
                ]
            }
        ],
    }
}