feat: add s3 provider to files API

Signed-off-by: Sébastien Han <seb@redhat.com>

llama_stack/providers/remote/files/object/s3/config.py

@@ -0,0 +1,37 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from pydantic import BaseModel, Field
+
+from llama_stack.providers.utils.kvstore import KVStoreConfig
+from llama_stack.providers.utils.kvstore.config import SqliteKVStoreConfig
+
+
+class S3FilesImplConfig(BaseModel):
+    """Configuration for S3 file storage provider."""
+
+    aws_access_key_id: str = Field(description="AWS access key ID")
+    aws_secret_access_key: str = Field(description="AWS secret access key")
+    region_name: str | None = Field(default=None, description="AWS region name")
+    endpoint_url: str | None = Field(default=None, description="Optional endpoint URL for S3 compatible services")
+    bucket_name: str | None = Field(default=None, description="Default S3 bucket name")
+    verify_tls: bool = Field(default=True, description="Verify TLS certificates")
+    persistent_store: KVStoreConfig
+
+    @classmethod
+    def sample_run_config(cls, __distro_dir__: str) -> dict:
+        return {
+            "aws_access_key_id": "your-access-key-id",
+            "aws_secret_access_key": "your-secret-access-key",
+            "region_name": "us-west-2",
+            "endpoint_url": None,
+            "bucket_name": "your-bucket-name",
+            "verify_tls": True,
+            "persistence_store": SqliteKVStoreConfig.sample_run_config(
+                __distro_dir__=__distro_dir__,
+                db_name="files_s3_store.db",
+            ),
+        }