I hope to add process monitoring for the system

[kwrum1]

I hope to add process monitoring for the system.
I want to add a process monitor in the server monitor, next to docker

I hope that's how he works

processMonitor.ts
######################################
import { exec } from 'child_process';

export interface ProcessInfo {
pid: number;
name: string;
cpu: number;
memory: number;
}

const systemUsers = ['root', 'system', 'daemon'];

export const getProcessesInfo = async (): Promise<ProcessInfo[]> => {
return new Promise((resolve, reject) => {
exec('ps aux --sort=-%cpu,-rss', (error, stdout, stderr) => {
if (error) {
reject(exec error: ${error});
return;
}

  const processList: ProcessInfo[] = [];
  const lines = stdout.trim().split('\n');
  lines.shift(); // 移除标题行

  lines.forEach((line) => {
    const columns = line.trim().split(/\s+/);
    const user = columns[0];
    const pid = parseInt(columns[1], 10);
    const cpu = parseFloat(columns[2]);
    const memory = parseFloat(columns[3]);
    const name = columns.slice(10).join(' '); // 进程名称可能包含空格

    if (!systemUsers.includes(user)) {
      processList.push({ pid, name, cpu, memory });
    }
  });

  resolve(processList);
});

});
};
##########################
serverStatus.ts
##########################
import { Router, Request, Response } from 'express';
import { body, header, param } from 'express-validator';
import { validate } from '../middleware/validate.js';
import { recordServerStatus } from '../model/serverStatus.js';
import fs from 'fs-extra';
import { libraryPath } from '../utils/lib.js';
import { getProcessesInfo, ProcessInfo } from '../utils/processMonitor.js';

export const serverStatusRouter = Router();

const installScript = fs.readFileSync(libraryPath.installScript);

// 服务器状态报告路由
serverStatusRouter.post(
'/report',
validate(
header('x-tianji-report-version').isSemVer(),
body('workspaceId').isString(),
body('name').isString(),
body('hostname').isString(),
body('timeout').optional().isInt(),
body('payload').isObject()
),
async (req: Request, res: Response) => {
const body = req.body;
recordServerStatus(body);
res.send('success');
}
);

// 安装脚本路由
serverStatusRouter.get(
'/:workspaceId/install.sh',
validate(param('workspaceId').isString()),
async (req: Request, res: Response) => {
const { workspaceId } = req.params;
const queryUrl = req.query.url ? String(req.query.url) : undefined;
const server = queryUrl || ${req.protocol}://${req.get('Host')};
res
.setHeader('Content-Type', 'text/plain')
.send(
String(installScript)
.replace('{{DEFAULT_SERVER}}', server)
.replace('{{DEFAULT_WORKSPACE}}', workspaceId)
);
}
);

// 进程监控路由
serverStatusRouter.get(
'/process-monitor',
async (req: Request, res: Response) => {
try {
const processes: ProcessInfo[] = await getProcessesInfo();
res.json(processes);
} catch (err) {
res.status(500).json({ error: '获取进程信息失败' });
}
}
);
#############################

[moonrailgun]

i think its cool, did you wanna submit a PR for it?

[moonrailgun]

its better for display top 3, more is unnecessary.

[kwrum1]

最好显示前 3 名，没有必要显示更多。
From a usability perspective, I would like to customize the selection of process monitoring, such as when my server is running "Home Assistant," I can know when its process is killed, so that I can immediately maintain it.

and,Developing JavaTypeScript has been challenging for me, and I apologize that I am unable to fix the issue and submit a PR. However, I can provide you with a possible solution and reference code.