Docker guidance

The deployment actions build Docker images and deploy them to Google App Engine. The docker images themselves are based off a starter image (to save each API docker image having to spend 5 minutes installing the same dependencies). The starter image is the Dockerfile in this directory.

To update the starter image:

• python setup.py sdist to build the python package
• twine upload dist/* to upload the package to pypi as policyengine-api
• cd gcp
• docker build .
• docker images to get the image id (the most recent one should be the one you just built)
• docker tag <image id> policyengine/policyengine-api
• docker push policyengine/policyengine-api