[2.x] Handle YAML file content before parsing

src/K8s.php

@@ -2,6 +2,7 @@
 
 namespace RenokiCo\PhpK8s;
 
+use Closure;
 use Illuminate\Support\Traits\Macroable;
 
 class K8s
@@ -396,11 +397,18 @@ public static function fromYaml($cluster, string $yaml)
      *
      * @param  \RenokiCo\PhpK8s\Kinds\KubernetesCluster|null  $cluster
      * @param  string  $path
+     * @param  Closure|null  $callback
      * @return \RenokiCo\PhpK8s\Kinds\K8sResource|array[\RenokiCo\PhpK8s\Kinds\K8sResource]
      */
-    public static function fromYamlFile($cluster, string $path)
+    public static function fromYamlFile($cluster, string $path, Closure $callback = null)
     {
-        return static::fromYaml($cluster, file_get_contents($path));
+        $content = file_get_contents($path);
+
+        if ($callback) {
+            $content = $callback($content);
+        }
+
+        return static::fromYaml($cluster, $content);
     }
 
     /**

tests/YamlTest.php

@@ -19,4 +19,15 @@ public function test_yaml_import_multiple_kinds_in_same_file()
         $this->assertEquals(['postgres' => base64_encode('postgres')], $secret->getData(false));
         $this->assertEquals(['postgres' => 'postgres'], $secret->getData(true));
     }
+
+    public function test_yaml_import_with_handler()
+    {
+        $cm = $this->cluster->fromYamlFile(__DIR__.'/yaml/configmap_with_placeholder.yaml', function ($content) {
+            return str_replace('{value}', 'assigned_value', $content);
+        });
+
+        $this->assertEquals('v1', $cm->getApiVersion());
+        $this->assertEquals('settings', $cm->getName());
+        $this->assertEquals(['key' => 'assigned_value'], $cm->getData());
+    }
 }

tests/yaml/configmap_with_placeholder.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: settings
+data:
+  key: "{value}"