Airflow dag to orchestrate news crawler

Dag runs daily at midnight and crawls all the news articles posted on the day.

Usage

1. Run database migrations and create first user account: docker-compose up airflow-init
2. Start all services: docker-compose up
3. The webserver available at: http://localhost:8080. The default account has the login airflow and the password airflow.

For detailed info: https://airflow.apache.org/docs/apache-airflow/stable/start/docker.html

Currently it is integrated with news-crawler and runs a docker container in AWS ECS.

There are two dags in /dags folder:

1. news_crawler_dag is scheduled to run daily starting from June 1st 2021
2. news_crawler_historical_dag processes historical data from Jan 1st 2014 to May 31st 2021.