bug #20891 Add support for REDIS_URL environment variables. (robinvdvleuten)
This PR was submitted for the master branch but it was merged into the 3.2 branch instead (closes #20891).
Discussion
----------
Add support for REDIS_URL environment variables.
| Q | A
| ------------- | ---
| Branch? | master
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #20850
| License | MIT
| Doc PR | -
In most PAAS solutions - Heroku for example - the Redis connection string is exposed as an environment variable like `REDIS_URL`. This PR adds support for those by allowing the following config;
```yml
framework:
cache:
default_redis_provider: "%env(REDIS_URL)%"
```
In the referenced issue there was some discussion about maybe a new config options like `default_redis_url`, but this makes it hard to check in the extension for the case that an user configured a custom _default_redis_provider_ and also has configured the default url.
Commits
-------
4e6086f
Add support for REDIS_URL environment variables.
This commit is contained in:
commit
2422f7da9b
@ -96,7 +96,9 @@ class CachePoolPass implements CompilerPassInterface
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*/
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public static function getServiceProvider(ContainerBuilder $container, $name)
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{
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if (0 === strpos($name, 'redis://')) {
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$container->resolveEnvPlaceholders($name, null, $usedEnvs);
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if (0 === strpos($name, 'redis://') || $usedEnvs) {
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$dsn = $name;
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if (!$container->hasDefinition($name = md5($dsn))) {
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@ -0,0 +1,9 @@
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<?php
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$container->setParameter('env(REDIS_URL)', 'redis://paas.com');
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$container->loadFromExtension('framework', array(
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'cache' => array(
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'default_redis_provider' => '%env(REDIS_URL)%',
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),
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));
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@ -0,0 +1,17 @@
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<?xml version="1.0" ?>
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<container xmlns="http://symfony.com/schema/dic/services"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:framework="http://symfony.com/schema/dic/symfony"
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xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
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http://symfony.com/schema/dic/symfony http://symfony.com/schema/dic/symfony/symfony-1.0.xsd">
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<parameters>
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<parameter key="env(REDIS_URL)">redis://paas.com</parameter>
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</parameters>
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<framework:config>
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<framework:cache>
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<framework:default-redis-provider>%env(REDIS_URL)%</framework:default-redis-provider>
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</framework:cache>
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</framework:config>
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</container>
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@ -0,0 +1,6 @@
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parameters:
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env(REDIS_URL): redis://paas.com
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framework:
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cache:
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default_redis_provider: "%env(REDIS_URL)%"
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@ -697,6 +697,34 @@ abstract class FrameworkExtensionTest extends TestCase
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$this->assertTrue($container->has('property_info'));
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}
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public function testCacheDefaultRedisProvider()
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{
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$container = $this->createContainerFromFile('cache');
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$redisUrl = 'redis://localhost';
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$providerId = md5($redisUrl);
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$this->assertTrue($container->hasDefinition($providerId));
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$url = $container->getDefinition($providerId)->getArgument(0);
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$this->assertSame($redisUrl, $url);
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}
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public function testCacheDefaultRedisProviderWithEnvVar()
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{
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$container = $this->createContainerFromFile('cache_env_var');
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$redisUrl = 'redis://paas.com';
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$providerId = md5($redisUrl);
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$this->assertTrue($container->hasDefinition($providerId));
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$url = $container->getDefinition($providerId)->getArgument(0);
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$this->assertSame($redisUrl, $url);
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}
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public function testCachePoolServices()
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{
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$container = $this->createContainerFromFile('cache');
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