Airflow入門

airflowをまずはinstallします。公式のドキュメントはこちら

色々な種類がありますが、とりあえず手元で動かしたいという方は何のproviderも付属しない以下のinstallコマンドを実行してください。
pythonがPATHに通っていることを仮定しています。

AIRFLOW_VERSION=2.8.1

# Extract the version of Python you have installed. If you're currently using a Python version that is not supported by Airflow, you may want to set this manually.
# See above for supported versions.
PYTHON_VERSION="$(python --version | cut -d " " -f 2 | cut -d "." -f 1-2)"

CONSTRAINT_URL="https://raw.githubusercontent.com/apache/airflow/constraints-${AIRFLOW_VERSION}/constraints-${PYTHON_VERSION}.txt"
# For example this would install 2.8.1 with python 3.8: https://raw.githubusercontent.com/apache/airflow/constraints-2.8.1/constraints-3.8.txt

pip install "apache-airflow==${AIRFLOW_VERSION}" --constraint "${CONSTRAINT_URL}"

airflow --help

installが上手く行っていれば以下のようにhelpが表示されます。

Usage: airflow [-h] GROUP_OR_COMMAND ...

Positional Arguments:
  GROUP_OR_COMMAND

    Groups
      config         View configuration
      connections    Manage connections
      dags           Manage DAGs
      db             Database operations
      jobs           Manage jobs
      pools          Manage pools
      providers      Display providers
      roles          Manage roles
      tasks          Manage tasks
      users          Manage users
      variables      Manage variables

    Commands:
      cheat-sheet    Display cheat sheet
      dag-processor  Start a standalone Dag Processor instance
      info           Show information about current Airflow and environment
      kerberos       Start a kerberos ticket renewer
      plugins        Dump information about loaded plugins
      rotate-fernet-key
                     Rotate encrypted connection credentials and variables
      scheduler      Start a scheduler instance
      standalone     Run an all-in-one copy of Airflow
      sync-perm      Update permissions for existing roles and optionally DAGs
      triggerer      Start a triggerer instance
      version        Show the version
      webserver      Start a Airflow webserver instance

Optional Arguments:
  -h, --help         show this help message and exit