A lightweight Python http/html server with jinja templates.
standard add start variable to your path
export FLASK_APP=main.py
run these for getting flavor of flask working in the environment used in the docker container
export LC_ALL=C.UTF-8
export LANG=C.UTF-8
our dockerfile exposes port 8888, specify that otherwise flask defaults to port 5000
flask run --host=0.0.0.0 --port=8888
navigate in browser to http://localhost:8888/
├── README.md
├── static <- standard flask convention
│ ├── css
│ ├── images
│ └── plots
│
├── templates <- standard flask convention
│ ├── report1.html
│ ├── report2.html
│ ├── city.html
│ └── help.html
│
└── main.py <- contains url routes & functions
/ /help --> landing/help/man page
/dev/city --> serves up city.html
/dev/report1/districtX ---> serves up report1.html
/dev/report2/districtX ---> serves up report2.html
When ready to generate a report, we recommend using a headless browser to produce a pdf. The url accessed by the headless browser will be the flask app running on localhost on your machine. Here we provide a command line tool that uses Puppeteer, a headless version of Google Chrome. Note: These steps should be run on your local machine.
Make sure node and npm are installed on your machine (https://docs.npmjs.com/downloading-and-installing-node-js-and-npm)
Install this node package
npm i puppeteer-cli (https://www.npmjs.com/package/puppeteer-cli)
Generate a report when the flask server is running
$ puppeteer print --margin-top 0 --margin-bottom 0 --margin-right 0 --margin-left 0 http://localhost:8888/dev/reportX/districtX file.pdf
Alternative to removing blank 2nd page of pdf with pdftk (https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/)
puppeteer print --margin-top 0 --margin-bottom 0 --margin-right 0 --margin-left 0 http://localhost:8888/dev/reportX/districtX tmp.pdf && pdftk tmp.pdf cat 1-r2 output reportXdistrictX.pdf