Deploying to Heroku and using Heroku for env vars

[Peter Hecht]

Hello,

I hope this day finds you well.

I'm a rusty programmer in PHP.  I have a working application I have deployed to Heroku using PostgreSQL instead of MySQL.  It was relatively easy to make the switch,  Just a few lines in my config.ini file.  

Now I have the DB name and password out in a github repo,  It seems it would be much safer to set the Heroku variables as config variables and read them from F3.  

Instead of this in my config/config.ini file:

db_name=123456

I would like to do something like this:

heroku config:set DB_NAME=123456

and then somewhere in F3 read the environment variable.

db_name=getenv('DB_NAME')

My question is, where would I put that?  After the require call: $f3=require('lib/base.php');

Some kind of different $f3->config call? 

Thanks!!!

[ved]

Hi, 

 

My question is, where would I put that?  After the require call: $f3=require('lib/base.php');

Sure, that should work. 

Or maybe it may be better to do it right before you initialize your database connection.

 

Some kind of different $f3->config call? 

To still use F3's ini to set it up, you can maybe set something like this on your ini:

[heroku]
host=DB_HOST
name=DB_NAME
user=DB_USER
pass=DB_PASS

Then, when initializing your database, use

getenv($f3->get('heroku.name'))

instead of

$f3->get('db_name')

This is probably a bit redundant, but allows you to just change the ENV names on your ini file instead of having to edit php files if you ever change them.

Good luck.

 

 

[Richard Goldstein]

I usually combine this with dotenv. So I don’t have to pollute my local environment.

See https://packagist.org/packages/vlucas/phpdotenv

I use the presence or absence of one of the environment variables as a flag to determine if the .env file should be loaded or not.

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[ved]

Sure, but we don't take too kindly to non fat-free things around here :)

[Richard Goldstein]

That’s just silly. 😀

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[Peter Hecht]

Hello,

Kind of answered it myself.  Just to document it:

if ( file_exists( '.env2' ) ) {

    $f3->config( '.env2' );

} else {

    $temp = getenv( 'db_dns' );

    $f3->set( 'db_dns', $temp );

    $temp = getenv( 'db_name' );

    $f3->set( 'db_name', $temp );

    $temp = getenv( 'db_pass' );

    $f3->set( 'db_pass', $temp );

    $temp = getenv( 'db_user' );

    $f3->set( 'db_user', $temp );

}

I have a file that I created with:

heroku config > .env2

After some editing it worked fine. 

Thanks!!!

[ved]

Cool. Note that you can use mset.

$f3->mset([
    'db_dns' => getenv('db_dns'),
    'db_user' => getenv('db_user'),
    'db_pass' => getenv('db_pass'),
    'db_name' => getenv('db_name')
]);

Same thing, a bit prettier to look at :)