From e507646aa849d6cddcb1a7e27007bc3c4f447864 Mon Sep 17 00:00:00 2001
From: Ivan087 <wujiatai087@gmail.com>
Date: Fri, 28 Nov 2025 11:07:38 +0800
Subject: [PATCH] Auto-generated by Trail System

---
 Dockerfile                      | 13 +++++++++++++
 app.py                          | 21 +++++++++++++++++++++
 chart/Chart.yaml                |  6 ++++++
 chart/templates/deployment.yaml | 24 ++++++++++++++++++++++++
 chart/templates/service.yaml    |  9 +++++++++
 chart/values.yaml               |  8 ++++++++
 requirements.txt                |  1 +
 7 files changed, 82 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 app.py
 create mode 100644 chart/Chart.yaml
 create mode 100644 chart/templates/deployment.yaml
 create mode 100644 chart/templates/service.yaml
 create mode 100644 chart/values.yaml
 create mode 100644 requirements.txt

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..3dfb76a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM python:3.9-slim as build
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --user -r requirements.txt
+
+FROM python:3.9-slim
+WORKDIR /app
+COPY --from=build /root/.local /root/.local
+COPY . .
+RUN apt-get update && apt-get install -y --no-install-recommends adduser && adduser --disabled-password --gecos '' appuser && chown -R appuser /app
+USER appuser
+ENV PATH=/root/.local/bin:$PATH
+CMD ["python", "app.py"]
\ No newline at end of file
diff --git a/app.py b/app.py
new file mode 100644
index 0000000..09d4c5f
--- /dev/null
+++ b/app.py
@@ -0,0 +1,21 @@
+from flask import Flask
+
+app = Flask(__name__)
+
+@app.route('/')
+def home():
+    """Handle the root endpoint, returns 'Todo List' as a string."""
+    return 'Todo List'
+
+@app.errorhandler(404)
+def not_found(e):
+    """Handle 404 Not Found errors with a custom message."""
+    return 'Page not found', 404
+
+@app.errorhandler(500)
+def server_error(e):
+    """Handle 500 Internal Server Error with a custom message."""
+    return 'Internal server error', 500
+
+if __name__ == '__main__':
+    app.run(debug=False)
\ No newline at end of file
diff --git a/chart/Chart.yaml b/chart/Chart.yaml
new file mode 100644
index 0000000..ddde2db
--- /dev/null
+++ b/chart/Chart.yaml
@@ -0,0 +1,6 @@
+apiVersion: v2
+name: todo-app
+description: A simple Flask-based Todo App hosted in a Docker container with Helm orchestration. The application exposes a single endpoint at '/' that returns 'Todo List'. Uses minimal dependencies and follows 12-factor principles for containerized deployment.
+type: application
+version: 0.1.0
+appVersion: "1.0.0"
\ No newline at end of file
diff --git a/chart/templates/deployment.yaml b/chart/templates/deployment.yaml
new file mode 100644
index 0000000..ba98019
--- /dev/null
+++ b/chart/templates/deployment.yaml
@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: flask-todo-app
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: flask-todo-app
+  template:
+    metadata:
+      labels:
+        app: flask-todo-app
+    spec:
+      containers:
+      - name: flask-todo-app
+        image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
+        ports:
+        - containerPort: 5000
+        env:
+        - name: FLASK_APP
+          value: "{{ .Values.env.FLASK_APP }}"
+        - name: DEBUG
+          value: "{{ .Values.env.DEBUG }}"
\ No newline at end of file
diff --git a/chart/templates/service.yaml b/chart/templates/service.yaml
new file mode 100644
index 0000000..5b2869d
--- /dev/null
+++ b/chart/templates/service.yaml
@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.service.name }}
+spec:
+  ports:
+    - port: {{ .Values.service.port }}
+  selector:
+    app: {{ .Values.app.name }}
\ No newline at end of file
diff --git a/chart/values.yaml b/chart/values.yaml
new file mode 100644
index 0000000..0239361
--- /dev/null
+++ b/chart/values.yaml
@@ -0,0 +1,8 @@
+image:
+  repository: flask-todo-app
+  tag: latest
+service:
+  port: 5000
+env:
+  FLASK_APP: app.py
+  DEBUG: "False"
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..2077213
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+Flask
\ No newline at end of file