[php] passing env variables to the workers about unit

[VBart]

@bbak Such option is already there. Please see Unit 1.2 release notes: http://mailman.nginx.org/pipermail/unit/2018-June/000055.html

[igorsysoev]

On 12 Sep 2017, at 14:14, Florian Klein ***@***.***> wrote: Is it possible to make the workers inherit from the environment variables of the main process?

The variables should be inherited by default.

…

-- Igor Sysoev http://nginx.com

[docteurklein]

thanks for the quick answer!
Indeed they are but only via $_ENV. which is fine by me!
It differs however of the fcgi implementation (see http://php.net/manual/en/ini.core.php#ini.variables-order):

In both the CGI and FastCGI SAPIs, $_SERVER is also populated by values from the environment; S is always equivalent to ES regardless of the placement of E elsewhere in this directive.

Maybe it would worth add it in the docs to avoid potential head scratching?

[igorsysoev]

On 12 Sep 2017, at 14:41, Florian Klein ***@***.***> wrote: thanks for the quick answer! Indeed they are but only via $_ENV. which is fine by me! It differs however of the fcgi implementation (see http://php.net/manual/en/ini.core.php#ini.variables-order):

Thank you, we will look at variables_order.

…

-- Igor Sysoev http://nginx.com

[bbak]

IHMO there should also be an option to set ENV Variables per application.

Use case: When running multiple Symfony Applications (one for dev and one for testing) in one Instance of unit, you have to set the Environment Variable SYMFONY_ENV accordingly.

Additionally just making all Environment Variables from the master process available to all applications may lead into either massive overhead or a security problem.

[VBart]

As of preventing passing env from the master process, I think that should be configurable.

[yannickgranger]

thanks for the quick answer!
Indeed they are but only via $_ENV. which is fine by me!
It differs however of the fcgi implementation (see http://php.net/manual/en/ini.core.php#ini.variables-order):

In both the CGI and FastCGI SAPIs, $_SERVER is also populated by values from the environment; S is always equivalent to ES regardless of the placement of E elsewhere in this directive.

Maybe it would worth add it in the docs to avoid potential head scratching?

@docteurklein when they are in $_ENV how do I get them used in the app ?

[VBart]

@yannickgranger since previously you've asked about Symfony, then I assume that your question is about how to use such variables with Symfony: https://symfony.com/doc/current/configuration.html#configuration-based-on-environment-variables

[yannickgranger]

Yes and no. I followed here this thread and thought it was ok to have it in $_ENV. And looking at discussions in symfony pages, it's an old PHP issue.

Maybe i misconfigured Unit but I don't see how to grab the variable in config. If i set variable_orders: "ES" there's only $_ENV populated. The orm does not seems to "see" the env var DATABASE_URL in it's conf file when I pass it via unit json config.

      "environment": {
        "APP_ENV": "prod",
        "DATABASE_URL": "sqlite:///%kernel.project_dir%/var/data.db"
      },

[VBart]

@yannickgranger I guess it doesn't interpolate it twice (i.e. recursive), so it sets your database url to sqlite:///%kernel.project_dir%/var/data.db without replacing %kernel.project_dir% to the actual path.

[VBart]

Though it provides the resolve processor that will interpolate the value of $_ENV: https://symfony.com/doc/current/configuration/env_var_processors.html#built-in-environment-variable-processors