Docker commands via php shell_exec

Question

I'm trying run command from my index.php:

$output = shell_exec('docker images');

and then output results,

or run new container the same way:

$output = shell_exec('docker run hello-world');

It seems that I could not run ANY docker cmd via php.

How do it properly?

Answer 1

I did the following to get this working:

1. Created a php file called index.php on /var/www/html/ with this content:

   <?php
       echo '<pre>';
       $content = system('sudo docker images', $ret);
       echo '</pre>';
   ?>
   

2. Edited sudoers file with visudo, adding the following line at the end:

   www-data ALL=NOPASSWD: /usr/bin/docker
   

3. Checked http://localhost/index.php and it worked!

You can even build and run containers with this, hope it works for you.