TLS connexion for (P)Redis

[FlorentPoinsaut]

Configuration

• PhpFastCache version: 7.0.5
• PhpFastCache API version: 2.0.4
• PHP version: PHP 7.1.27-1+0~20190307202204.14+stretch~1.gbp7163d5 (cli) (built: Mar 7 2019 20:22:04) ( NTS )
• Operating system: Debian Stretch

Is your feature request related to a problem? Please describe.
I would like to use phpfastcache with a Redis server configurated with a TLS connexion.

Describe the solution you'd like
Add a scheme optionnal option to Redis and Predis configurations.

Describe alternatives you've considered
Add a tls boolean option to Redis and Predis configurations to replace tcp scheme by tls.

Additional context
Part of Predis README for Redis server connexion: https://github.com/nrk/predis/#connecting-to-redis

[FlorentPoinsaut]

As workaround, instead of:

$cache = $this->phpfastcache->get('redis');

I use:

$instanceName = 'predis';
if (array_key_exists($instanceName, $this->phpfastcache->getInstances())) {
	$cache = $this->phpfastcache->get($instanceName);
} else {
	$config = $this->phpfastcache->getConfig();

	$predisConfig = array_merge($config['drivers']['redis']['parameters'], ['scheme' => 'tls']);

	$predisClient = new \Predis\Client($predisConfig);

	$cache = CacheManager::getInstance('predis', new Config([
		'predisClient' => $predisClient
	]));

	$this->phpfastcache->createInstance($instanceName, $cache);
}

[Geolim4]

Hello,

I'll consider adding this to the 7.1.x eventually.
But you did the right thing by using an external predis instance with exotic configurations.

The 7.1 should be released around the first day of summer :)

Cheers,
Georges.