Redis prefix in Vapor

[liepumartins]

When looking at keys via redis-cli one can see that keys look like

laravel_database_myapp-productionkeyname

"laravel_database" comes from default prefix Str::slug(env('APP_NAME', 'laravel'), '_') . '_database_',
"myapp-production" is the name of vapor app (myapp) and env (production)
"keyname" is the thing one provides to Cache::get('keyname')

Problem is that myapp-production and keyname are concatenated without a colon.

I can change prefix to include a colon, but that only changes
laravel_database_myapp-productionkeyname
to
laravel_database:myapp-productionkeyname

[liepumartins]

Found config/cache.php also does a prefix, that comes after the config/database.php prefix.
In case of Vapor, this prefix appears to be populated via env var CACHE_PREFIX.

So appending ':' solves my problem:
'prefix' => env('CACHE_PREFIX', Str::slug(env('APP_NAME', 'laravel'), '_') . '_cache'),

'prefix' => env('CACHE_PREFIX', Str::slug(env('APP_NAME', 'laravel'), '_') . '_cache').':',