Guest Agent Exec ">" Problem

[UgurBurak]

Hi everyone.

I developing Proxmox automation module for WHMCS. I want to add exec command from panel. I can execute commands fine. But when i want to write file this output with bash redirection I have a error.

This error be like in PHP code with var_export function:

array ( 'exited' => 1, 'err-data' => 'date: extra operand â/home/denemedir.txtâ Try \'date --help\' for more information. ', 'exitcode' => 1, )

I try PHP code and CLI.

My PHP code:

$path = "/nodes/{$node}/qemu/{$vmid}/agent/exec";
$data = [
    'command' => 'date > /home/denemedir.txt',
];

$send_command = $pve->post($path, $data);
if($send_command === false){
    logActivity(var_export($pve->debugInfo, true), 0);
}
while(true){
    $path = "/nodes/{$node}/qemu/{$vmid}/agent/exec-status?pid=".$send_command['pid'];
    $check_command = $pve->get($path, []);
    if($check_command === false){
        logActivity(var_export($pve->debugInfo, true), 0);
        break;
    }
    if($check_command['exited'] == 1){
        break;
    }
}
logActivity(var_export($check_command, true), 0);
$get_output = $pve->get("/nodes/{$node}/qemu/{$vmid}/agent/file-read?file=/root/denemedir.txt", []);
logActivity(var_export($get_output, true), 0);
if($get_output === false){
    logActivity(var_export($pve->debugInfo, true), 0);
}

and CLI command:

pvesh create /nodes/server/qemu/3258/agent/exec --command "date > denemedir.txt"

I had this error in CLI:

pvesh create /nodes/server/qemu/3258/agent/exec --command "date > denemedir.txt"
Wide character in die at /usr/share/perl5/PVE/RESTHandler.pm line 869.
Agent error: Guest agent command failed, error was 'Failed to execute child process “date > denemedir.txt” (No such file or directory)'

How can i solve it?
Thank you.

 

[UgurBurak]

I'm trying another combinations in cli. Unfortunately i can't execute command with bash redirection.
I had this error:

 

[dietmar]

The command is executed directly, not inside a shell - so you simply cannot use bash redirection.

 

[dcsapak]

well, yes you can, but you have to invoke the shell yourself:

.../exec --command 'sh' --command '-c' --command "date > deneme.txt"

 

[UgurBurak]

The command is executed directly, not inside a shell - so you simply cannot use bash redirection.

Okay. For example, i want to execute plesk's one click installer with qemu agent. How can i do?

This code has a bash redirection:

sh <(curl https://autoinstall.plesk.com/one-click-installer || wget -O - https://autoinstall.plesk.com/one-click-installer)

 

[UgurBurak]

well, yes you can, but you have to invoke the shell yourself:

.../exec --command 'sh' --command '-c' --command "date > deneme.txt"

Hi again.
I'm trying in PHP code and REST HTTP API with your example. But i getting an error in PHP code but i dont get an error in shell with pvesh api.

Am I have to create a bash file and run to be success?

Error:

>: 1: Syntax error: Unterminated quoted string

My latest code:

                                    $code = str_replace('>', '>', $isExist->code);
                                    $code = str_replace('&lt;', '<', $code);
                                    $code = str_replace('&amp;', '&', $code);
                                    $path = "/nodes/{$node}/qemu/{$vmid}/agent/exec";
                                    $data = [
                                        'command' => "sh -c \"{$code}\"",
                                    ];

                                    $send_command = $pve->post($path, $data);

 

[UgurBurak]

Hi again.
My problem is continue. Now, i trying with Centos but i can't file-write process in Centos. I must use this command because i can't use directly or with "sh -c". If i use each one, i getting an error.

Example, i want to install plesk with one click installer command, i can doing it in Ubuntu with file-write and execute process. But, when i try this method in Centos, i cant. Because Centos devs disabled this command.

How can i install plesk or cPanel in Centos with Qemu-Agent? How can i execute oneclick installer commands?

My Plesk command:

sh <(curl https://autoinstall.plesk.com/one-click-installer || wget -O - https://autoinstall.plesk.com/one-click-installer)

cPanel Command

cd /home && curl -o latest -L https://securedownloads.cpanel.net/latest && sh latest