====== Install Redash without docker on Centos ======

  - enable Remi repo
  - install redis
  - install python3
  - create redash installation folder, python env, environment variables
  - clone redash source code from github
  - pull python dependencies in venv
  - setup systemd for redash-server
  - setup systemd for redash-worker
  - setup systemd for redash-scheduler
  - setup apache virtual domain for front end and backend proxy
  - build front end