Add publish command for config file

Author: bram-pkg

README.md

@@ -28,6 +28,12 @@ DOCKER_PHP_TAG=laravel-app:php
 DOCKER_NGINX_TAG=laravel-app:nginx DOCKER_PHP_TAG=laravel-app:php vendor/bin/docker-build
 ```
 
+### Option 3: Config File
+
+```shell
+php artisan vendor:publish --provider="BlameButton\LaravelDockerBuilder\DockerServiceProvider"
+```
+
 ## Usage
 
 Set the `DOCKER_NGINX_TAG` and `DOCKER_PHP_TAG` environment variables and run:

config/docker-build.php

@@ -0,0 +1,12 @@
+<?php
+
+use Illuminate\Support\Str;
+
+$tag = Str::slug(env('APP_NAME', 'laravel'));
+
+return [
+    'tags' => [
+        'nginx' => env('DOCKER_NGINX_TAG', "$tag:nginx"),
+        'php' => env('DOCKER_PHP_TAG', "$tag:php"),
+    ],
+];

src/DockerServiceProvider.php

@@ -16,6 +16,14 @@ public function boot(): void
                 DockerGenerateCommand::class,
             ]);
         }
+
+        $this->publishes([
+            __DIR__ . '/../config/docker-build.php' => config_path('docker-build.php'),
+        ]);
+
+        $this->mergeConfigFrom(
+            __DIR__ . '/../config/docker-build.php', 'docker-builder',
+        );
     }
 
     public static function getPackagePath(string $path = null): string