feat: Gitlab CI 를 통한 Docker image 배포

.dockerignore

+.DS_Store
+
+/venv/
+__pycache__
+*.pyc
+
+*.html
+*.json
+*.xml
+*.zip
+
+*.txt
+!/requirements.txt
+
+.env*
+!/.env.example

.gitlab-ci.yml

+stages:
+  - deploy
+
+deploy:
+  image: docker
+  services:
+    - "docker:dind"
+  tags:
+    - dind
+  stage: deploy
+  only:
+    - main
+    - master
+
+  before_script:
+    - echo "$CI_REGISTRY_PASSWORD" | docker login $CI_REGISTRY -u $CI_REGISTRY_USER --password-stdin
+
+  script:
+    - docker build --cache-from $CI_REGISTRY_IMAGE:latest -t $CI_REGISTRY_IMAGE:latest -t $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA  .
+    - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
+    - docker push $CI_REGISTRY_IMAGE:latest
+
+  after_script:
+    - docker logout $CI_REGISTRY

Dockerfile

+FROM python:3.13-alpine
+
+WORKDIR /app
+COPY ./requirements.txt /app
+
+RUN pip install -r requirements.txt
+
+COPY . /app
+
+ENTRYPOINT ["python"]
+CMD ["push_to_db.py"]