From 6a7f99d6fa56159f4aede306328d7efdad786e7f Mon Sep 17 00:00:00 2001
From: Daniel Roth <daniel_roth@hotmail.co.uk>
Date: Thu, 5 Feb 2026 11:57:52 +0000
Subject: [PATCH] define dockerfile (with print hello world)

---
 backend/condition/Dockerfile                  | 15 --------
 backend/condition/handler.py                  | 37 ------------------
 backend/condition/handler/Dockerfile          | 25 ++++++++++++
 backend/condition/handler/handler.py          | 38 +++++++++++++++++++
 .../condition/{ => handler}/requirements.txt  |  0
 5 files changed, 63 insertions(+), 52 deletions(-)
 delete mode 100644 backend/condition/Dockerfile
 delete mode 100644 backend/condition/handler.py
 create mode 100644 backend/condition/handler/Dockerfile
 create mode 100644 backend/condition/handler/handler.py
 rename backend/condition/{ => handler}/requirements.txt (100%)

diff --git a/backend/condition/Dockerfile b/backend/condition/Dockerfile
deleted file mode 100644
index 49723667..00000000
--- a/backend/condition/Dockerfile
+++ /dev/null
@@ -1,15 +0,0 @@
-FROM public.ecr.aws/lambda/python:3.11
-
-# Set working directory (Lambda task root)
-WORKDIR /var/task
-
-
-# -----------------------------
-# Copy application code
-# -----------------------------
-
-
-# -----------------------------
-# Lambda handler
-# -----------------------------
-CMD ["handler.handler"]
diff --git a/backend/condition/handler.py b/backend/condition/handler.py
deleted file mode 100644
index 4aef0eac..00000000
--- a/backend/condition/handler.py
+++ /dev/null
@@ -1,37 +0,0 @@
-import json
-from typing import Mapping, Any
-from io import BytesIO
-
-from backend.condition.condition_trigger_request import ConditionTriggerRequest
-from backend.condition.lookups.uprn_lookup_s3 import UprnLookupS3
-from backend.condition.processor import process_file
-from utils.logger import setup_logger
-from utils.s3 import read_io_from_s3
-
-
-logger = setup_logger()
-
-
-def handler(event: Mapping[str, Any], context: Any) -> None:
-    uprn_lookup = UprnLookupS3(
-        bucket="", key=""
-    )  # TODO: replace with postgres implementation
-
-    for record in event.get("Records", []):
-        try:
-            body_dict = json.loads(record["body"])
-            payload = ConditionTriggerRequest.model_validate(body_dict)
-
-            file_bytes: BytesIO = read_io_from_s3(
-                bucket_name=payload.trigger_file_bucket,
-                file_key=payload.trigger_file_key,
-            )
-
-            process_file(
-                file_stream=file_bytes,
-                file_type=payload.file_type,
-                uprn_lookup=uprn_lookup,
-            )
-
-        except Exception as e:
-            logger.error(f"Failed to process record: {e}")
diff --git a/backend/condition/handler/Dockerfile b/backend/condition/handler/Dockerfile
new file mode 100644
index 00000000..9414a1a9
--- /dev/null
+++ b/backend/condition/handler/Dockerfile
@@ -0,0 +1,25 @@
+FROM public.ecr.aws/lambda/python:3.11
+# FROM python:3.11.10-bullseye
+
+# Set working directory (Lambda task root)
+WORKDIR /var/task
+
+# -----------------------------
+# Copy requirements FIRST (for Docker layer caching)
+# -----------------------------
+COPY backend/condition/handler/requirements.txt .
+
+# Install dependencies into Lambda runtime
+RUN pip install --no-cache-dir -r requirements.txt
+
+# -----------------------------
+# Copy application code
+# -----------------------------
+COPY utils/ utils/
+COPY backend/condition/ backend/condition/
+COPY backend/__init__.py backend/__init__.py
+
+# -----------------------------
+# Lambda handler
+# -----------------------------
+CMD ["backend/condition/handler/handler.handler"]
diff --git a/backend/condition/handler/handler.py b/backend/condition/handler/handler.py
new file mode 100644
index 00000000..1f3580f3
--- /dev/null
+++ b/backend/condition/handler/handler.py
@@ -0,0 +1,38 @@
+import json
+from typing import Mapping, Any
+from io import BytesIO
+
+from backend.condition.condition_trigger_request import ConditionTriggerRequest
+from backend.condition.lookups.uprn_lookup_s3 import UprnLookupS3
+from backend.condition.processor import process_file
+from utils.logger import setup_logger
+from utils.s3 import read_io_from_s3
+
+
+logger = setup_logger()
+
+
+def handler(event: Mapping[str, Any], context: Any) -> None:
+    print("hello world")
+    # uprn_lookup = UprnLookupS3(
+    #     bucket="", key=""
+    # )  # TODO: replace with postgres implementation
+
+    # for record in event.get("Records", []):
+    #     try:
+    #         body_dict = json.loads(record["body"])
+    #         payload = ConditionTriggerRequest.model_validate(body_dict)
+
+    #         file_bytes: BytesIO = read_io_from_s3(
+    #             bucket_name=payload.trigger_file_bucket,
+    #             file_key=payload.trigger_file_key,
+    #         )
+
+    #         process_file(
+    #             file_stream=file_bytes,
+    #             file_type=payload.file_type,
+    #             uprn_lookup=uprn_lookup,
+    #         )
+
+    #     except Exception as e:
+    #         logger.error(f"Failed to process record: {e}")
diff --git a/backend/condition/requirements.txt b/backend/condition/handler/requirements.txt
similarity index 100%
rename from backend/condition/requirements.txt
rename to backend/condition/handler/requirements.txt