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Informations about the package lb-healthcheck-php

lb-healthcheck-php

Load balancer health check library and examples for PHP. Optimized for use with HOSTING Cloud Load Balancer but should work with just about any deployment.

Installation

We recommend you install the LB Health Check functions with the Composer dependency manager. Run this bash command in your project's root directory to download and install the latest stable version into your project's vendor/ directory.

Next, require the Composer autoloader into your PHP application:

And you're ready to go.

Usage

This library is intended to be used most often with custom health check logic that you write and tests the critical components of your application. Examples of things to test would be:

You can find examples of how to implement a health check script using your own custom logic in the examples/php folder.

If you're just wanting to get started quickly or if you're only concerned about the web server responding to requests and executing PHP scripts, perhaps the bare minimum implementation is for you:

Drop that in your webroot as health.php and if PHP is working, that single call to \HOSTING\LBHealthCheck::success() will complete and return the necessary HTTP status code and string to inform the load balancer to keep the server as an active member of the cluster. If the webserver or PHP processing is broken, it will return an error or timeout which will cause the load balacner to eject the server from the load balancing group.

Load Balancer Configuration

Here is what that Cloud Load Balancer configuration would look like in the HOSTING Customer Portal.

HOSTING Cloud Load Balancer Example Config

All versions of lb-healthcheck-php with dependencies

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Requires php Version >=5.5.0
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