Runs latest GitHub master branch of pygeoapi using
Docker Image from DockerHub with a volume-mounted local config file.
This service is restarted pulling the latest pygeoapi Docker Image whenever a new Image is available (via DockerHub autobuild on
the pygeoapi GitHub master commit or explicitly).
There is also a stable version that runs the latest pygeoapi version also from DockerHub.
The file env.sh is sourced in start/stop scripts to populate deploy-host-dependent vars.
Via the Updater service this service gets redeployed when a new image is available on Dockerhub.