I’m trying to run a bash script in the background using Laravel. I’m currently using Symfony process to run it. However, there is a timeout and the user won’t be able to navigate the website until the script is done. The script doesn’t output anything. It simply runs other scripts and take the output and insert it into a database.
I have tried appending & at the end of the command as well as dev/null. No matter what I do the user can’t navigate away from the page until the script is done executing. If the user navigates away from the page, the script is stoped.
Regards,
Arron
You should use laravel queues, it is exactly what you want :
https://laravel.com/docs/5.8/queues
The easiest way is with a database, but if you are using it with redis, you can also use Laravel Horizon to monitor them : https://laravel.com/docs/5.8/horizon
Configure supervisord to run your script in the background. Google how to install and setup supervisor.
Related
Im writing a tool and one of its commands allows you to start a new session
How can I make a golang program restart itself? If your solution is OS-Strict im on Linux.
I tried
// exec from os/exec
exec.Command(os.Args[0]).Run()
but it doesnt work. I get a blank input session which is hard to explain
My Program Input: session new
:(
:(
each of the :( represent a blank line where im able to type stuff and hit enter, there are 2 which means i hit enter twice
Im expecting
My Program Input: session new
My Program Input:
Edit: more accurately, i want to make a subprocess of the same program
You could use a separate process, like radovskyb/gobeat.
Example:
sudo gobeat -pid=1234 -cmd="go run sendemail.go"
Run with sudo so gobeat will restart the server in the same terminal tty that it originated in. (sudo)
Point gobeat to the process of the running server that you want gobeat to monitor. (gobeat -pid=1234)
Set the cmd flag to run a Go file that will send an email notifying you that the server was restarted. (-cmd="go run sendemail.go")
If you do not want a separate process, then consider implementing a graceful upgrade
You can use the library cloudflare/tableflip for instance.
I'm really struggling with this issue, which is a little frustrating to me because it seems to be so simple in a Linux server. I have a Windows Azure Web App and I want to run "php artisan queue:listen" on the server continuously to take care of dispatched jobs. From what I read from the documentation, in Linux you just use Supervisor to run the command constantly and to revive it, in case it dies. From what I found online, Azure has a similar functionality called WebJobs where you can serve them a script to be ran and then decide whether it should run on a schedule or continuously (kinda like the Scheduler in Laravel). With this I have 2 questions.
1 - Is this the right solution? Place a script to run the command on a WebJob and have the WebJob run continuously?
2 - I'm not experienced in writing php scripts to run command lines, so all I can do is something like this:
echo shell_exec('php artisan queue:work');
Problem is this does not give me the output of the command (I don't see anything like the "processed" result that I see when I run the command by hand on my command console and a job is processed). It is important to me to be able to read the output of the command, because I want to be able to check the logs for errors in case something happens when a job isn't able to be processed. From the documentation shell_exec returns null in case an error is thrown so I'm completely clueless on how to deal with this.
Thank you so much in advance!
Instead of using shell_exec() you can directly upload .cmd file which includes your command php artisan queue:work, and then you can find the output log in WebJob Details page.
About how to do that, please check Ernesto's answer out.
For Azure you can make a new webjob to your web app, and upload a .cmd
file including a command like this.
php %HOME%\site\wwwroot\artisan queue:work --daemon
and defining that as a triguered and 0 * * * * * frecuency cron.
that way work for me.
For more information, please refer to Run Background tasks with WebJobs.
I have an external script that changes some tables in a database.
I want to fire some scripts whenever this happens.
I could do this with a PHP/Perl daemon easily, however I wonder if Laravel has something for this.
Don't know if it's relevant for what you're trying to do but you can use the Laravel Scheduler to run a command that checks (every minutes or more) if the database changed.
If you can too, fire a command directly from your external script like
php path/to/artisan your:command-name
Using Codeigniter 2.2.0 for my project. Is $this->input->is_cli_request() validation is necessary for a cron job?
It is recommended to protect your cronjob not to execute when someone type the URL in their browser. However if you don't have any problem running your cronjob invoked by anyone then can avoid this check.
Refer https://ellislab.com/codeigniter/user-guide/general/cli.html for more details.
It recommented to run cron jobs with command line.
There are many reasons for running CodeIgniter from the command-line, but they are not always obvious.
Run your cron-jobs without needing to use wget or curl
Make your cron-jobs inaccessible from being loaded in the URL by checking for $this->input->is_cli_request()
Make interactive "tasks" that can do things like set permissions, prune cache folders, run backups, etc.
Integrate with other applications in other languages. For example, a random C++ script could call one command and run code in your models!
More info read here
But you also can prevent calling from URL in your server.
Is there way to invoke a CakePHP console shell on server without shell access? I have written a shell for performing some once off (and hence not a cron task) post DB upgrade tasks.
I could always just copy the logic into a temporary controller, call its actions via http and then delete it, but was wondering if there was a better way to go about it.
It seems that this is a one off script you might want to typically be running after DB updates right?
If that's the case, you can make it part of your "DB update script"
If you use anything like capistrano, you can include there too.
In all cases, if you don't want to touch the shell, I agree that having a controller to call the console code (or any php file running exec() as mentioned previously) would do the trick.
Also, if you want to run it just once and have it scheduled - don't forget that you have the "at" command (instead of cron) which will run it at that scheduled date (see http://linux.about.com/library/cmd/blcmdl1_at.htm)
Hope it helps,
Cheers,
p.s: if its a console shell and you don't want to run it from the console, then just don't make it a console shell.
I have to agree with elvy. Since this is something that you need to do once in a while after other events have happened, why not just create an 'admin' area for your application and stick code for that update in there?
you may be able to use php's exec function to call it from any old php script.
http://www.php.net/exec