$ composer create-project "laravel/laravel=5.7.*" sample
$ cd sample
$ php artisan serve

runtime: php73

env_variables:
  APP_KEY: YOUR_APP_KEY  ## .envのAPP_KEYを記載　ex) base64:Ts6Uz7mj0x~~~
  APP_STORAGE: /tmp
  VIEW_COMPILED_PATH: /tmp
  SESSION_DRIVER: cookie

/*
|--------------------------------------------------------------------------
| Set Storage Path
|--------------------------------------------------------------------------
|
| This script allows you to override the default storage location used by
| the  application.  You may set the APP_STORAGE environment variable
| in your .env file,  if not set the default location will be used
|
*/
//この行を追記---------------------------------------------------|
$app->useStoragePath(env('APP_STORAGE', base_path() . '/storage'));

return $app;

$ composer remove --dev beyondcode/laravel-dump-server
$ composer remove --dev facade/ignition   //ちなみにLaravel 6.0を使っているならこちらを削除

$ echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] https://packages.cloud.google.com/apt cloud-sdk main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
$ sudo apt-get install apt-transport-https ca-certificates gnupg
$ echo "deb https://packages.cloud.google.com/apt cloud-sdk main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
$ curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key --keyring /usr/share/keyrings/cloud.google.gpg add -
$ sudo apt-get update && sudo apt-get install google-cloud-sdk

$ gcloud init
Pick configuration to use:
 [1] Re-initialize this configuration [default] with new settings 
 [2] Create a new configuration
Please enter your numeric choice:  1  //デフォルトの設定があればそれを使うので「1」入力。最初などは「2」で設定を登録しておきます

Choose the account you would like to use to perform operations for 
this configuration:
 [1] 登録していればここにメールアドレスが表示される
 [2] Log in with a new account
Please enter your numeric choice:  1　//メールアドレスが登録されていればそれを選択し、なければ「2」を押して、この後発行されるURLで追加できます

Pick cloud project to use: 
 [1] 存在すればgoogle cloudのプロダクト名が表示されます
 [2] 存在すればgoogle cloudのプロダクト名が表示されます
 [3] Create a new project
Please enter numeric choice or text value (must exactly match list 
item):  2　//事前に作成しておいたGoogle Cloudのプロダクトの番号を選択

Which compute zone would you like to use as project default?
 [1] [asia-east1-a] 　
 [2] [asia-east1-b]　
 ...
 [14] Do not use default zone
 Please enter your numeric choice: 1 //使用するリージョンを決めます。ここは使いたいリージョンを選んでください

$ gcloud app deploy
Do you want to continue (Y/n)?  y

$ php artisan make:auth
$ php artisan session:table
$ php artisan migrate --force

$ mysqldump -u root -p -h localhost ローカル環境のデータベース名 > database_table

runtime: php73


# この記載がないとcssとjsがnot foundになるので必須
handlers:
# Serve a directory as a static resource.
- url: /css
  static_dir: public/css
- url: /js
  static_dir: public/js


env_variables:
  ## Put production environment variables here.
  APP_KEY: YOUR_APP_KEY  ## .envのAPP_KEYを記載　ex) base64:Ts6Uz7mj0x~~~
  APP_STORAGE: /tmp
  VIEW_COMPILED_PATH: /tmp
  CACHE_DRIVER: database
  SESSION_DRIVER: database
    ## Set these environment variables according to your CloudSQL configuration.
  DB_DATABASE: YOUR_DB_DATABASE　　　　　　　　#クラウドのデータベース名
  DB_USERNAME: YOUR_DB_USERNAME　　　　　　　　#クラウドのユーザー名
  DB_PASSWORD: YOUR_DB_PASSWORD　　　　　　　　#クラウドのユーザーのパスワード
  ## for MYSQL, use DB_SOCKET:
  DB_SOCKET: "/cloudsql/YOUR_CONNECTION_NAME"　#YOUR_CONNECTION_NAMEにはメモっていたものを記載
  ## for PostgreSQL, use DB_HOST:
  # DB_HOST: "/cloudsql/YOUR_CONNECTION_NAME"　#Postgresqlの場合はこのように記載

$ gcloud app deploy
Do you want to continue (Y/n)?  y

SQLSTATE[HY000] [2002] No such file or directory (SQL: select * from sessions where id = dgbEmZ9AufF9UD9kkeUxLlfeppZ1Z3erfe7UHQbHd limit 1)

+-----------------------------------------+-----------------------------------------+
| Variable_name                           | Value                                   |
+-----------------------------------------+-----------------------------------------+
| performance_schema_max_socket_classes   | 0                                       |
| performance_schema_max_socket_instances | 0                                       |
| socket                                  | /tmp/mysql/mysql.sock 　　　　　　       |
+-----------------------------------------+-----------------------------------------+

'mysql' => [
    'unix_socket' => env('DB_SOCKET','/tmp/mysql/mysql.sock'),
           ],

DB_SOCKET: "/cloudsql/YOUR_CONNECTION_NAME"