1-Basic Setup

.github/workflows/branch.yaml

@@ -0,0 +1,13 @@
+name: Branch CI
+on:
+  push:
+    branches-ignore:
+      - main
+jobs:
+  Build-And-Test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: Build Docker Images
+        run: docker compose build

.github/workflows/main.yaml

@@ -0,0 +1,13 @@
+name: Branch CI
+on:
+  push:
+    branches:
+      - main
+jobs:
+  Build-And-Test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: Build Docker Images
+        run: docker compose build

.gitignore

@@ -165,7 +165,7 @@ cython_debug/
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
+.idea/
 
 # Ruff stuff:
 .ruff_cache/

Dockerfile

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+FROM python:3.11-slim
+
+RUN mkdir /berlin-transit
+WORKDIR /berlin-transit
+
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    libpq-dev
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+RUN chmod +x /berlin-transit/entrypoint.sh
+
+ENTRYPOINT ["/berlin-transit/entrypoint.sh"]

docker-compose.yaml

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+services:
+  postgres:
+    image: postgres:15.6
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: S3cr3t_P4ssw0rd
+      POSTGRES_DB: transit
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+
+  app:
+    build: .
+    depends_on:
+      - postgres
+    ports:
+      - "5000:5000"
+    environment:
+      FLASK_APP: app
+      FLASK_ENV: development
+      DATABASE_URL: postgresql://postgres:S3cr3t_P4ssw0rd@postgres:5432/transit
+
+volumes:
+  pgdata:

entrypoint.sh

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+#!/usr/bin/env bash
+
+set -ex
+
+exit 0

requirements.txt

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+dash==3.0.3
+psycopg2-binary==2.9.10
+sqlalchemy==2.0.40
+alembic==1.15.2
+pandas==2.2.3
+requests==2.32.3
+pytz==2025.2
+pytest==8.3.5
+pytest-mock==3.14.0