GeezerVison

A simple yet extensible python wrapper script for templating a proxy nginx configuration that functions as host mapped reverse proxy container.

Modern browsers enforce CORS policy and won't let you make requests from your frontend running on localhost:8080 to your backend at localhost:4000. To solve this problem, start a proxy at localhost:5000 (or any other spare port) and proxy requests based on paths:

• localhost:5000/api and localhost:5000/buy will be routed to the backend localhost:4000
• localhost:5000/ will be routed to the frontend localhost:8080

pip install proxybootstrap # using pip

Note: You will need docker for running the proxy container

Start the proxy server with your configuration

proxybootstrap \
    --port 5000 \
    /api@http://127.0.0.1:4000 /buy@http://127.0.0.1:4000 /@http://127.0.0.1:8080

Under the hood, configuration options are applied to the --config template file and rendered using jinja2. If you wish, you can pass additional arguments and use them in the config template. Example:

proxybootstrap \
    -my_var1 Test1 \
    --my_var2 Test2 \
    --port 5000 \
    /@http://127.0.0.1:8080

can be accessed in a template with

{{ my_var1 }}
{{ my_var2 }}

• Write a custom proxy configuration for nginx or other proxy servers like trafik, envoy or haproxy
• When using webpack or another popular tool there might be some plugins like devserver-proxy for vuejs
• Mess around with headers to allow specific CORS requests

If you do not have pipx and pipenv, install with

python3 -m pip install --user pipx
python3 -m pipx ensurepath
pipx install pipenv

Install all dependencies with

pipenv install --dev

To format, sort imports and check PEP8 conformity, run

pipenv run black .
pipenv run isort
pipenv run flake8

(These are also configured as a git pre commit hook)

This configuration is very minimal and intended for development use only.