setup CITE demo

[tomkralidis]

In relation to geopython/pygeoapi#325, I would like to setup an instance at https://demo.pygeoapi.io/cite which provides CITE specific data, configuration and endpoint against pygeoapi master. The instance needs to have a very small and basic Elasticsearch backend (with a single index of 50 records) instance of to expose the full functionality needed for CITE. Basic workflow on a commit would be:

• stand up ES instance
• load a single index with 50 records
• generate OpenAPI document
• start server

[justb4]

Should not be too hard, basically an adapted copy of service/pygeoapi_master into service/pygeoapi_cite plus some service/deploy support scripts:

• https://github.com/geopython/demo.pygeoapi.io/blob/master/services/start.sh

• https://github.com/geopython/demo.pygeoapi.io/blob/master/services/stop.sh

• adapt DockerHub trigger script

• The Cite docker-compose file should have an ES container added with some init script to load data, basically a variant of the pygeoapi Docker ES example, including the wait-for-ES for pygeoapi ES Provider (or will it autoconnect?).

NB we will need an extended ES Docker Image that includes .sh scripts+data as the DockerHub trigger script would not allow Docker Volume mapping.

[justb4]

Good start! Think biggest challenge is to get the pygeoapi and ES Docker Containers initialized and interacting:

• ES (down)loading data
• pygeoapi: does it have to wait until ES Container is ready? We have something similar with GHC to PostGIS, solved with timed loop.
  Though I think the Provider should be handling (re)connects to ES...

Some hints on services/pygeoapi_cite:

• Dockerfile : last line (data copy) can be removed (data is loaded in ES Container).
• Dockerfile: line 8: COPY ./cite.config.yml /pygeoapi/local.config.yml (as pygeoapi Docker Image expects config in /pygeoapi/local.config.yml
• no need for OpenAPI docgen (happens at pygeoapi Container startup)
• for clarity you could move Dockerfile and cite.config.yml to pygeoapi subdir (like ES).
• Dockerfile.alpine can be removed
• docker-compose.yml: add pygeoapi build (like ES build)
• build.sh should now have one line: docker-compose build
• docker-compose.yml: "5000:80" port mapping can be used for testing without Traefik.
• docker-compose.yml: last lines: network is required for deployment (for all Containers from different docker-compose files to connect to each other).

[tomkralidis]

Completed at https://demo.pygeoapi.io/cite . Thanks @just for the help!