Initial PR : Create a public demonstration repository named cdk-eoapi

[emileten]

Ref issue developmentseed/eoapi-cdk#47

This PR creates a demonstration of how to use the constructs from https://github.com/developmentseed/cdk-pgstac. It is based on https://github.com/MAAP-Project/maap-cdk-pgstac itself mostly a copy of https://github.com/developmentseed/aws-asdi-pgstac, with the exception of a few bugs removed (back when it was created) and a tiler application that was added.

Most of the work done on top of just copy pasting https://github.com/MAAP-Project/maap-cdk-pgstac is :

• increased configurability (more options are added to the top configuration model)
• cleaned up the configuration management by using pydantic
• cleaned up the configuration management by using a single configuration YAML file. In the two example repos above, one needs three files (a dotenv file, one yaml file for the bastion host user data and another file with a list of ip addresses).
• converted the whole wrapper to python for accessibility.

@sharkinsspatial I did a basic testing of this PR (synth, deployment, and collection ingest work). I need to do more next week but a first round of reviews would be helpful.

Also, I am not addressing testing and documentation, I am leaving that to next PRs.

Thanks !

[emileten]

note to myself. I would like to :

• add the option to create the database from a snapshot. We don't have that and I think it's important (I currently need that for MAAP, and VEDA has that option)
• have the database in a stack that's different from the applications, i.e separating stateful and stateless resources deployments in different stacks, because we are likelly to redeploy the apps much more often than the database. CSDA does that..

Thoughts @sharkinsspatial ?