add aws s3 iam check (#5174)

api/.env.example

 # storage type: local, s3, azure-blob
 STORAGE_TYPE=local
 STORAGE_LOCAL_PATH=storage
+S3_USE_AWS_MANAGED_IAM=false
 S3_ENDPOINT=https://your-bucket-name.storage.s3.clooudflare.com
 S3_BUCKET_NAME=your-bucket-name
 S3_ACCESS_KEY=your-access-key

api/config.py

     'APP_WEB_URL': 'https://udify.app',
     'FILES_URL': '',
     'FILES_ACCESS_TIMEOUT': 300,
+    'S3_USE_AWS_MANAGED_IAM': 'False',
     'S3_ADDRESS_STYLE': 'auto',
     'STORAGE_TYPE': 'local',
     'STORAGE_LOCAL_PATH': 'storage',
         self.STORAGE_LOCAL_PATH = get_env('STORAGE_LOCAL_PATH')
 
         # S3 Storage settings
+        self.S3_USE_AWS_MANAGED_IAM = get_bool_env('S3_USE_AWS_MANAGED_IAM')
         self.S3_ENDPOINT = get_env('S3_ENDPOINT')
         self.S3_BUCKET_NAME = get_env('S3_BUCKET_NAME')
         self.S3_ACCESS_KEY = get_env('S3_ACCESS_KEY')

api/extensions/storage/s3_storage.py

         super().__init__(app)
         app_config = self.app.config
         self.bucket_name = app_config.get('S3_BUCKET_NAME')
-        self.client = boto3.client(
-                    's3',
-                    aws_secret_access_key=app_config.get('S3_SECRET_KEY'),
-                    aws_access_key_id=app_config.get('S3_ACCESS_KEY'),
-                    endpoint_url=app_config.get('S3_ENDPOINT'),
-                    region_name=app_config.get('S3_REGION'),
-                    config=Config(s3={'addressing_style': app_config.get('S3_ADDRESS_STYLE')})
-                )
+        if app_config.get('S3_USE_AWS_MANAGED_IAM'):
+            session = boto3.Session()
+            self.client = session.client('s3')
+        else:
+            self.client = boto3.client(
+                        's3',
+                        aws_secret_access_key=app_config.get('S3_SECRET_KEY'),
+                        aws_access_key_id=app_config.get('S3_ACCESS_KEY'),
+                        endpoint_url=app_config.get('S3_ENDPOINT'),
+                        region_name=app_config.get('S3_REGION'),
+                        config=Config(s3={'addressing_style': app_config.get('S3_ADDRESS_STYLE')})
+                    )
 
     def save(self, filename, data):
         self.client.put_object(Bucket=self.bucket_name, Key=filename, Body=data)

docker/docker-compose.yaml

       # only available when STORAGE_TYPE is `local`.
       STORAGE_LOCAL_PATH: storage
       # The S3 storage configurations, only available when STORAGE_TYPE is `s3`.
+      S3_USE_AWS_MANAGED_IAM: 'false'
       S3_ENDPOINT: 'https://xxx.r2.cloudflarestorage.com'
       S3_BUCKET_NAME: 'difyai'
       S3_ACCESS_KEY: 'ak-difyai'
       STORAGE_TYPE: local
       STORAGE_LOCAL_PATH: storage
       # The S3 storage configurations, only available when STORAGE_TYPE is `s3`.
+      S3_USE_AWS_MANAGED_IAM: 'false'
       S3_ENDPOINT: 'https://xxx.r2.cloudflarestorage.com'
       S3_BUCKET_NAME: 'difyai'
       S3_ACCESS_KEY: 'ak-difyai'