I want to execute 'python3 sample.py --path.data=/root/tej4' command from nodejs.The below is my code -

const runningPython = async(req,res,next) => {
    ssh.connect({
        host: '******',
        port: 22,
        username: 'ubuntu',
        privateKey: '*******'
    }).then(function () {
     exec('python3 sample.py --path.data=/root/tej4', (err, stdout, stderr) => {
        if (err) {
          console.log(err)
        }
      
        // the *entire* stdout and stderr (buffered)
        console.log(`stdout: ${stdout}`);
        console.log(`stderr: ${stderr}`);
      });
    })
    }

But what I am getting response is its trying to run locally rather than on aws cli. Not sure how to achieve this?

Error: Command failed: python3 sample.py --path.data=/root/tej4
Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.

    at ChildProcess.exithandler (node:child_process:397:12)
    at ChildProcess.emit (node:events:390:28)
    at maybeClose (node:internal/child_process:1064:16)
    at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5) {
  killed: false,
  code: 9009,
  signal: null,
  cmd: 'python3 sample.py --path.data=/root/tej4'
}
stdout: 
stderr: Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.

CodePudding user response：

You have to create an instance of type node_ssh and use that instance to call connect and executeCommand methods

const node_ssh = require('node-ssh');
const ssh = new node_ssh();

ssh
  .connect({
        host: '******',
        port: 22,
        username: 'ubuntu',
        privateKey: '*******'
  })
  .then(() => {
    ssh.execCommand('python3 sample.py --path.data=/root/tej4', { cwd:'/your-python-script-path-here' })
       .then((result) => {
          console.log('STDOUT: '   result.stdout)
          console.log('STDERR: '   result.stderr)
       });

CodePudding user response：

Earlier I was using ssh lib but for sudo su and running multiple commands I switched to ssh2shell and changed the code as follow -

const runningPython = async(req,res,next) => {
    var host = {
        server:        {     
         host: *****       ,
         username: *****,
         privateKey: fs.readFileSync('ppk file path'),
        },
        commands: [ "sudo su -", "python3 sample.py --path.data=root/tej4" ],
        onCommandComplete: function( command, response, sshObj ) {
            if(sshObj.debug){
                this.emit("msg", this.sshObj.server.host   ": host.onCommandComplete event, command: "   command);
              }
              if (command === "sudo su -" && response.indexOf("/root") != -1 ) {
   
               sshObj.commands.unshift("msg:The command and response check worked. Added another cd command.");
               sshObj.commands.unshift("cd .ssh");
              }
             
              else if (command === "python3 sample.py --path.data=root/tej4"){      
              this.emit("msg", response);
            
              }
             },
             
             onEnd: function( sessionText, sshObj ) {
              
              if(sshObj.debug){this.emit("msg", this.sshObj.server.host   ": host.onEnd event");}
        }
       };

     let SSH = new SSH2Shell(host),
       //Use a callback function to process the full session text
       callback = function(sessionText){
         console.log(sessionText)
       }
     
     //Start the process
     SSH.connect(callback);

}