ci: FastAPI Docker 이미지화 + CI 파이프라인 구축

.dockerignore

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+venv/
+__pycache__/
+*.pyc
+.env
+.git/
+.github/
+.gitignore
+.dockerignore
+.omc/
+.DS_Store

.github/workflows/ci.yml

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+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+env:
+  IMAGE: ${{ secrets.DOCKER_USERNAME }}/kkumteul-ai
+
+jobs:
+  docker-push:
+    name: Docker Build & Push
+    if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build & Push image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: |
+            ${{ env.IMAGE }}:latest
+            ${{ env.IMAGE }}:${{ github.sha }}

Dockerfile

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+FROM python:3.13-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app ./app
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]