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[DevOps & Deployment](/categories/devops) 4. / 5. eis3nhorn/laravel-elasticbeanstalk-cron ActiveLibrary[DevOps & Deployment](/categories/devops) eis3nhorn/laravel-elasticbeanstalk-cron ======================================= Ensure only one Laravel instance is running CRON jobs in an EB environment 0.3(8y ago)024MITPHP Since Sep 28Pushed 6y ago1 watchersCompare [ Source](https://github.com/eis3nhorn/laravel-elasticbeanstalk-cron)[ Packagist](https://packagist.org/packages/eis3nhorn/laravel-elasticbeanstalk-cron)[ RSS](/packages/eis3nhorn-laravel-elasticbeanstalk-cron/feed)WikiDiscussions master Synced today READMEChangelogDependencies (4)Versions (4)Used By (0) Lumen 6.0.\* and 7\* FORK Task Scheduler with Elastic Beanstalk =============================================================== [](#lumen-60-and-7-fork-task-scheduler-with-elastic-beanstalk) \*\*\* This Fork uses getenv to get vars (like USE\_CRON) defined in Elastic Beanstalk Environment instead of using config to read them as it seems to fail on Elastic Beanstalk as of December 4 2018, it has also been updated to work with 6.0 branch *Ensure one instance in an Elastic Beanstalk environment is running Laravel's Scheduler* A common [problem](https://stackoverflow.com/questions/14077095/aws-elastic-beanstalk-running-a-cronjob) [many](http://culttt.com/2016/02/08/setting-up-and-using-cron-jobs-with-laravel-and-aws-elastic-beanstalk/) [people](https://medium.com/@joelennon/running-cron-jobs-on-amazon-web-services-aws-elastic-beanstalk-a41d91d1c571#.i53d41sci) have encountered with Amazon's [Elastic Beanstalk](https://aws.amazon.com/elasticbeanstalk/) is maintaining a single instance in an environment that runs Laravel's Task Scheduler. Difficulties arise because auto-scaling does not guarantee any instance is run indefinitely and there are no "master-slave" relationships within an environment to differentiate one instance from the rest. Although Amazon has provided a [solution](http://stackoverflow.com/a/28719447/1469797) it involves setting up a worker tier and then, potentially, creating new routes/methods for implementing the tasks that need to be run. Yuck! **This package provides a simple, zero-setup solution for maintaining one instance within an Elastic Beanstalk environment that runs the Task Scheduler.** How Does It Work? ----------------- [](#how-does-it-work) Glad you asked! The below process **is completely automated** and only requires that you publish the `.ebextensions` folder to the root of your application. ### 1. Use Elastic Beanstalk's Advanced Configuration to run CRON setup commands [](#1-use-elastic-beanstalks-advanced-configuration-to-run-cron-setup-commands) EB applications can contain a [folder](https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/ebextensions.html) that provides advanced configuration for an EB environment, called `.ebextensions`. This package provides a configuration file that runs two commands on deployment (every instance initialization) that setup the conditions needed to run the Task Schedler on one instance: ### 2. Run `system:start:leaderselection` [](#2-run-systemstartleaderselection) This is the first command that is run on deployment. It configures the instance's Cron to run **Leader Selection** at a configured interval (default = 5 minutes) ### 3. Run **Leader Selection** `aws:configure:leader` [](#3-run-leader-selection-awsconfigureleader) This is the **Leader Selection** command. It does the following: - Get the Id of the Instance this deployment is running on - Get the `EnvironmentName` of this Instance. (When running in an EB environment all EC2 instances have the same `EnvironmentName`) - Get all running EC2 instances with that `EnvironmentName` - Find the **earliest launched instance** If this instance is the earliest launched then it is deemed the **Leader** and runs `system:start:cron` ### 4. Run `system:start:cron` [](#4-run-systemstartcron) This command is run **only if the current instance running Leader Selection is the Leader**. It inserts another entry in the instance's Cron to run [Laravel's Scheduler](https://laravel.com/docs/5.1/scheduling). ### That's it! [](#thats-it) Now only one instance, the earliest launched, will have the scheduler inserted into its Cron. If that instance is terminated by auto-scaling a new Leader will be chosen within 5 minutes (or the configured interval) from the remaining running instances. Installation ------------ [](#installation) Require this package ``` composer require "eis3nhorn/laravel-elasticbeanstalk-cron" ``` After adding the package, add the ServiceProvider to the providers array in `config/app.php` ``` \eis3nhorn\LaravelElasticBeanstalkCron\ElasticBeanstalkCronProvider::class ``` Then, publish the **.ebextensions** folder and configuration file. ``` php artisan vendor:publish --tag=ebcron ``` Configuration ------------- [](#configuration) In order for Leader Selection to run a few environmental variables must be present: - **USE\_CRON** = true -- Must be set in order for Leader Selection to occur. (This can be used to prevent Selection from occurring on undesired environments IE Workers, etc.) - **AWS\_ACCESS\_KEY\_ID** -- Needed for read-only access to ec2 client - **AWS\_SECRET\_ACCESS\_KEY** -- Needed for read-only access to ec2 client - **AWS\_REGION** -- Sets which AWS region when looking using the ec2 client, defaults to `us-east-1` if not set. These can be included in your **.env** or, for EB, in the environment's configuration section. Contributing ------------ [](#contributing) Make a PR for some extra functionality and I will happily accept it :) License ------- [](#license) This package is licensed under the [MIT license](https://github.com/eis3nhorn/laravel-elasticbeanstalk-cron/blob/master/LICENSE.txt). ### Health Score 25 — LowBetter than 35% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity6 Limited adoption so far Community13 Small or concentrated contributor base Maturity55 Maturing project, gaining track record Bus Factor3 3 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~189 days Total 3 Last Release 3231d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/7c52dd716d2f29f47bb1823ade5befb11a687f2e40409120257dac04f155136a?d=identicon)[eis3nhorn](/maintainers/eis3nhorn) --- Top Contributors [![FoxxMD](https://avatars.githubusercontent.com/u/4663766?v=4)](https://github.com/FoxxMD "FoxxMD (10 commits)")[![eis3nhorn](https://avatars.githubusercontent.com/u/17926316?v=4)](https://github.com/eis3nhorn "eis3nhorn (8 commits)")[![jhagel](https://avatars.githubusercontent.com/u/11066431?v=4)](https://github.com/jhagel "jhagel (7 commits)")[![Jono20201](https://avatars.githubusercontent.com/u/2374192?v=4)](https://github.com/Jono20201 "Jono20201 (6 commits)")[![heathdutton](https://avatars.githubusercontent.com/u/302215?v=4)](https://github.com/heathdutton "heathdutton (5 commits)")[![coindwarf](https://avatars.githubusercontent.com/u/37026808?v=4)](https://github.com/coindwarf "coindwarf (1 commits)") ### Embed Badge ![Health badge](/badges/eis3nhorn-laravel-elasticbeanstalk-cron/health.svg) ``` [![Health](https://phpackages.com/badges/eis3nhorn-laravel-elasticbeanstalk-cron/health.svg)](https://phpackages.com/packages/eis3nhorn-laravel-elasticbeanstalk-cron) ``` ### Alternatives [laravel/ai The official AI SDK for Laravel. 1.1k4.6M319](/packages/laravel-ai)[tallstackui/tallstackui TallStackUI is a powerful suite of Blade components that elevate your workflow of Livewire applications. 731189.9k16](/packages/tallstackui-tallstackui)[mike-bronner/laravel-model-caching Automatic caching for Eloquent models. 2.4k161.4k2](/packages/mike-bronner-laravel-model-caching)[pressbooks/pressbooks Pressbooks is an open source book publishing tool built on a WordPress multisite platform. 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