GCP Dataflow pipeline in python
as per https://codelabs.developers.google.com/codelabs/cpb101-simple-dataflow-py
and per https://github.com/GoogleCloudPlatform/training-data-analyst/tree/master/courses/data_analysis/lab2/python
and per https://www.udemy.com/gcp-data-engineer-and-cloud-architect/learn/v4/t/lecture/7598612?start=0
reads files and outputs lines which contain search query (regex)
list of pkgs
for local deploy
for dataflow deploy
reads and writes to Cloud Storage bucket
note BUCKET_ID & PROJECT_ID vars