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Package laravel-redis-sentinel
Short Description An extension of Laravels Redis driver which supports connecting to a Redis master through Redis Sentinel.
License MIT
Homepage https://github.com/Namoshek/laravel-redis-sentinel
Informations about the package laravel-redis-sentinel
Laravel Redis Sentinel driver for phpredis/phpredis
PHP extension
This package provides a Laravel Redis driver which allows connecting to a Redis master through a Redis Sentinel instance. The package is intended to be used in a Kubernetes environment or similar, where connecting to Redis Sentinels is possible through a load balancer.
This driver is an alternative to monospice/laravel-redis-sentinel-drivers
.
The primary difference is that this driver supports the phpredis/phpredis
PHP extension
and has significantly simpler configuration, due to a simpler architecture.
In detail this means that this package does not override the entire Redis subsystem of Laravel, it only adds an additional driver.
By default, Laravel supports the predis
and phpredis
drivers. This package adds a third phpredis-sentinel
driver,
which is an extension of the phpredis
driver for Redis Sentinel.
An extension for predis
is currently not available and not necessary, since predis/predis
already supports
connecting to Redis through one or more Sentinels.
Installation
You can install the package via composer:
The service provider which comes with the package is registered automatically.
Configuration
The package requires no extra configuration and does therefore not provide an additional configuration file.
Usage
To use the Redis Sentinel driver, the redis
section in config/database.php
needs to be adjusted:
Instead of changing redis.client
in the configuration file directly, you can also set REDIS_CLIENT=phpredis-sentinel
in the environment variables.
As you can see, there are also a few new sentinel_*
options available for each Redis connection.
Most of them work very similar to the normal Redis options, except that they are used for the connection to Redis Sentinel.
Noteworthy is the sentinel_service
, which represents the instance name of the monitored Redis master.
All other options are the same for the Redis Sentinel driver, except that url
is not supported and host
and port
are ignored.
How does it work?
An additional Laravel Redis driver is added (phpredis-sentinel
), which resolves the currently declared master instance of a replication
cluster as active Redis instance. Under the hood, this driver relies on the framework driver for phpredis/phpredis
,
it only wraps the connection part of it and adds some error handling which forcefully reconnects in case of a failover.
Please be aware that this package does not manage load balancing between Sentinels (which is supposed to be done on an infrastructure level) and does also not load balance read/write calls to replica/master nodes. All traffic is sent to the currently reported master.
Developing
To run the tests locally, a Redis cluster needs to be running.
The repository contains a script (thanks to monospice/laravel-redis-sentinel-drivers
)
which can be used to start one by running sh start-redis-cluster.sh
.
The script requires that Redis is installed on your machine. To install Redis on Ubuntu or Debian,
you can use sudo apt update && sudo apt install redis-server
. For other operating systems, please see redis.io.
License
The MIT License (MIT). Please see License File for more information.
All versions of laravel-redis-sentinel with dependencies
ext-redis Version *
illuminate/contracts Version ^8.0|^9.0
illuminate/redis Version ^8.0|^9.0
illuminate/support Version ^8.0|^9.0