Docker commands via php shell_exec

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

$output = shell_exec('docker images');

and then output results,

  • Pull docker image behind a corporate firewall throws “Server error: Status 0 while fetching image layer”
  • Run go program without Go environment
  • CoreOS : when pulling large docker image of size greater than 4 GB
  • Collect UDP(Gelf) messages and forward with TCP to logstash
  • systemctl from inside docker container fails with D-Bus connection error
  • etcd3 docker persist discovery information
  • 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?

  • running incorrect docker image osx
  • Docker Mounting Error - File Not Found
  • docker swarm for bare metal : ubuntu
  • Tomcat with Docker
  • Tomcat doesn't start in docker container because it can't create log files
  • Docker for mac hostname insteat of IP
  • 2 Solutions collect form web for “Docker commands via php shell_exec”

    You can do this:

    vi rd.php
    

    Put this content in rd.php file

    <?php 
    $output = shell_exec('RET=`docker run hello-world`;echo $RET');
    echo $output;
    

    Now you can run

    php rd.php
    

    You can view the result :

    Hello from Docker. This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (Assuming it was not already locally available.) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash For more examples and ideas, visit: http://docs.docker.com/userguide/
    

    That’s all !

    I hope this help you

    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!

    enter image description here

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

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.