error on google app engine with laravel - php

Question

I've tried to deploy my laravel based projec to gae, but I'm getting a blank screen and this in the error logs
PHP Fatal error: Uncaught exception 'ErrorException' with message 'file_get_contents(/base/data/home/apps/s~random-gae-name/1.380824294377640683/vendor/laravel/framework/src/Illuminate/Exception/resources/plain.html): failed to open stream: No such file or directory' in /base/data/home/apps/s~random-gae-name/1.380824294377640683/vendor/laravel/framework/src/Illuminate/Exception/PlainDisplayer.php:21
Stack trace:
#0 [internal function]: Illuminate\Exception\Handler->handleError(2, 'file_get_conten...', '/base/data/home...', 21, Array)
#1 /base/data/home/apps/s~random-gae-name/1.380824294377640683/vendor/laravel/framework/src/Illuminate/Exception/PlainDisplayer.php(21): file_get_contents('/base/data/home...')
#2 /base/data/home/apps/s~random-gae-name/1.380824294377640683/bootstrap/compiled.php(9292): Illuminate\Exception\PlainDisplayer->display(Object(ErrorException))
#3 /base/data/home/apps/s~random-gae-name/1.380824294377640683/bootstrap/compiled.php(9244): Illuminate\Exception\Handler->displayException(Object( in /base/data/home/apps/s~random-gae-name/1.380824294377640683/vendor/laravel/framework/src/Illuminate/Exception/PlainDisplayer.php on line 21
I don't know what this means.
My php.ini
; enable function that are disabled by default in the App Engine PHP runtime
google_app_engine.enable_functions = "php_sapi_name, php_uname, getmypid"
; Cloud storage buckets that Laravel needs to include files from. By default
; in production the first bucket declared here will be used for app storage.
google_app_engine.allow_include_gs_buckets = "x"
allow_url_include=1
and my yaml file
application: x
module: default
version: 1
runtime: php
api_version: 1
handlers:
- url: /.*
script: public/index.php
- url: /(.*\.(ico|gif|png|jpg|css|js|html|txt|pdf|mp3|eps|svg|ttf|woff|eot))
static_files: public/\1
upload: (.*\.(ico|gif|png|jpg|css|js|html|txt|pdf|mp3|eps|svg|ttf|woff|eot))

Answer 1

It seems that you need to change the storage path to your bucket. App Engine apps can't write to the local file system, so you have to override Laravel's Application class method bindInstallPaths to allow the use of Google Cloud Storage as app/storage/ directory.
Use an inherited class of Illuminate\Foundation\Application and then override bindInstallPaths method.
// MyApplicationClass.php file
class MyApplicationClass extends Illuminate\Foundation\Application
{
public function bindInstallPaths(array $paths)
{
if (isset($_SERVER['APPLICATION_ID']) && !empty($_SERVER['APPLICATION_ID'])) {
if (realpath($paths['app'])) {
$this->instance('path', realpath($paths['app']));
}
elseif (file_exists($paths['app'])) {
$this->instance('path', $paths['app']);
}
else {
$this->instance('path', FALSE);
}
foreach (array_except($paths, array('app')) as $key => $value)
{
if (realpath($value)) {
$this->instance("path.{$key}", realpath($value));
}
elseif (file_exists($value)) {
$this->instance("path.{$key}", $value);
}
else {
$this->instance("path.{$key}", FALSE);
}
}
} else {
parent::{__FUNCTION__}($paths);
}
}
}
Then use this class in bootstrap/start.php instead of original one.
$app = (isset($_SERVER['APPLICATION_ID']) && !empty($_SERVER['APPLICATION_ID']))
? new MyApplicationClass
: new Illuminate\Foundation\Application;
And finally, you have to change the storage path in your paths.php file
// paths.php file
$storage_path = (isset($_SERVER['APPLICATION_ID']) && !empty($_SERVER['APPLICATION_ID']))
? "gs://" . $your_bucket_name . "/storage"
: __DIR__.'/../app/storage';
mkdir($storage_path);
return array (
...
'storage' => $storage_path,
);
I hope it works fine for you.