add Dockerfile to build image #6

	# name: Periodic Link Checker

	# on:
	# schedule:
	# - cron: '0 0 * * 0' # Run every Sunday at midnight (UTC time)

	# jobs:
	# link_check:
	# runs-on: ubuntu-latest
	# defaults:
	# run:
	# working-directory: ./linkchecker/
	# strategy:
	# matrix:
	# python-version: [3.11]

	# steps:
	# - uses: actions/checkout@v4

	# - name: Set up Python
	# uses: actions/setup-python@v5
	# with:
	# python-version: ${{ matrix.python-version }}

	# - name: Install dependencies
	# run: \|
	# python -m pip install --upgrade pip
	# pip install -r requirements.txt

	# - name: Run link checker script
	# env:
	# POSTGRES_USER: ${{ secrets.POSTGRES_USER }}
	# POSTGRES_PASSWORD: ${{ secrets.POSTGRES_PASSWORD }}
	# POSTGRES_HOST: ${{ secrets.POSTGRES_HOST }}
	# POSTGRES_PORT: ${{ secrets.POSTGRES_PORT }}
	# POSTGRES_DB: ${{ secrets.POSTGRES_DB }}
	# run: python linkchecker.py

	# - name: Run FastAPI server
	# env:
	# POSTGRES_USER: ${{ secrets.POSTGRES_USER }}
	# POSTGRES_PASSWORD: ${{ secrets.POSTGRES_PASSWORD }}
	# POSTGRES_HOST: ${{ secrets.POSTGRES_HOST }}
	# POSTGRES_PORT: ${{ secrets.POSTGRES_PORT }}
	# POSTGRES_DB: ${{ secrets.POSTGRES_DB }}
	# run: \|
	# nohup python -m uvicorn api:app --host 0.0.0.0 --port 8000 &

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