Chapters

23 Chapters | 2:20:28 |

01

Bundles!

6:11
02

KnpMarkdownBundle & Service

7:55
03

Cache Service

5:01
04

Configuring Bundles

6:30
05

The Service Container & Autowiring

6:23
06

Configuring the Cache Service

6:45
07

Environments

9:08
08

Controlling the prod Environment

4:26
09

Creating a Service

5:03
10

Autowiring Dependencies into a Service

6:45
11

Parameters

7:59
12

Service Config & Non-Autowireable Arguments

7:02
13

All about services.yaml

6:21
14

Binding Global Arguments

3:01
15

Named Autowiring

5:18
16

Fetching Non-Autowireable Services

5:58
17

Controllers: Boring, Beautiful Services

2:55
18

Environment Variables

8:29
19

The Secrets Vault

7:39
20

Using & Overriding Secrets

5:21
21

MakerBundle & Autoconfigure

4:42
22

Playing with a Custom Console Command

4:44
23

Making a Twig Extension (Filter)

6:51

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11.

Parameters

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3 Comments

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A-Dawg 4 years ago edited

Ryan and or amazing Symfony Cast team... I got a tricky one for you regarding parameters,
I recently upgraded our organizations symfony 3.4 app to symfony 5.4.6 Flex.
I have gotten all of the main functions of the application working, although there is one thing that I have been putting off, as its just escaping me on how to do it.
Multi Tenant Parameters
Our old 3.4 Symfony application would be able to intercept the $_SERVER['HTTP_HOST'] and use the first part of the url to determine what set of parameters to load. for example

mathew.example.com would load config/mathew/paramters.yaml
ryan.example.com would load config/ryan/parameters.yaml

Each config file would have organization specific parameters such as DB info, company name, etc.
That way we could have one application, two organizations using it, separated database information for ultimate privacy.

I think it was about the symfony 5.1 mile marker where i noticed that the kernel file changed to remove a lot of that granular control of which config files you could load.

I have modified the V5.4.6 Kernel to work, but for some reason, its not working 100 of the time.
Here is my code


class Kernel extends BaseKernel
{
    use MicroKernelTrait;

    protected function build(ContainerBuilder $container)
    {
        $loader = $this->getContainerLoader($container);
        $configFolder = 'default';
        
        if (isset($_SERVER['HTTP_HOST'])) {
            $host = explode('.', $_SERVER['HTTP_HOST']);
            if ($host[0] === 'mathew' or $host[0] === 'mathew-staging')
                $configFolder = 'mathew';
            else
                $configFolder = $host[0]; *ryan*
        }

        $loader->load($container->getParameter('kernel.project_dir') . '/multi-tenant/'. $configFolder . '/config.yaml');
        parent::build($container);
    }
}

So this totally works. Say I got to mathew.example.com, it loads all the mathew parameters. But if I then open up an incognito tab and go to ryan.example.com it loads mathews parameters and vice versa. It keeps this behavior till I clear the cache.
Some of the other things I have attempted to try and resolve this issue are:

<blockquote> * disable app / system caching

disable Twig caching as those are the easiest identifiers if the right parameters loaded.
</blockquote>

Thank you for any advise you can give.

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MolloKhan SFCASTS A-Dawg 4 years ago edited

Hey @Mathew!

Sorry for my late reply. I believe your problem is due to Symfony's internal caching, the very first time you hit your application, it'll build/compile the Symfony's container and then, it'll be cached (by creating many files inside "var/cache/{env}/Container____/"), so, the next time the application runs, it won't compile the container again, so, your strategy of dynamically choosing which config files to read ain't going to work.

I'm not sure about this, but I think you can override the Kernel::getCacheDir() method, so, it would return a different directory based on the host. Give it a try and let know if it wordked ;)

Cheers!

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A-Dawg A-Dawg 4 years ago

Before anyone comments about keeping sensitive information such as DB connection info in a config file. I am pulling the data into the config files using AWS:Secrets Manager, so the code itself only shows a reference to the Secrets ID and Key name on AWS, not the actual credentials. :)

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This tutorial also works great for Symfony 6!

Symfony 5

What PHP libraries does this tutorial use?

// composer.json
{
    "require": {
        "php": "^7.3.0 || ^8.0.0",
        "ext-ctype": "*",
        "ext-iconv": "*",
        "composer/package-versions-deprecated": "^1.11", // 1.11.99
        "knplabs/knp-markdown-bundle": "^1.8", // 1.9.0
        "sensio/framework-extra-bundle": "^6.0", // v6.2.1
        "sentry/sentry-symfony": "^4.0", // 4.0.3
        "symfony/asset": "5.0.*", // v5.0.11
        "symfony/console": "5.0.*", // v5.0.11
        "symfony/debug-bundle": "5.0.*", // v5.0.11
        "symfony/dotenv": "5.0.*", // v5.0.11
        "symfony/flex": "^1.3.1", // v1.21.6
        "symfony/framework-bundle": "5.0.*", // v5.0.11
        "symfony/monolog-bundle": "^3.0", // v3.6.0
        "symfony/profiler-pack": "*", // v1.0.5
        "symfony/routing": "5.1.*", // v5.1.11
        "symfony/twig-pack": "^1.0", // v1.0.1
        "symfony/var-dumper": "5.0.*", // v5.0.11
        "symfony/webpack-encore-bundle": "^1.7", // v1.8.0
        "symfony/yaml": "5.0.*" // v5.0.11
    },
    "require-dev": {
        "symfony/maker-bundle": "^1.15", // v1.23.0
        "symfony/profiler-pack": "^1.0" // v1.0.5
    }
}

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