feature HAPI FHIR

[bwalsh]

NOT FOR MERGING: intended as a sidecar for local development

This PR:

• installs a HAPI FHIR service
• creates a database in the gen3 postgres instance, default database name fhir
• exposes the FHIR API endpoint at /fhir

Note:

• there is no UI other than the swagger page
• there is no data loaded to the server
• no authorization is applied

Potential improvements:

• read hapi-fhir-jpaserver.externalDatabase.* from gen3 values e.g. {{global.postgres.master.host}}
• add native HAPI.FHIR.security interceptor

Secrets/value.yaml additions:

# A new chart that simply creates a database for use by  hapi-fhir-jpaserver
hapi-fhir-db-init:
  postgres:
    dbCreate: true
    database: fhir
    username: fhir
    password: marionberry

# configure external hapi chart see "https://hapifhir.github.io/hapi-fhir-jpaserver-starter/"
hapi-fhir-jpaserver:
  postgresql:
    enabled: false  # the hapi chart should not create a postgresql database instance
  externalDatabase: # instead, it should use a pre-existing database instance
    host: local-postgresql  # coordinate with {{global.postgres.master.host}}
    password: marionberry
    user: fhir
  ingress:
    enabled: true
    hosts:
      - host: aced-training.compbio.ohsu.edu  # coordinate with {{global.hostname}}
        paths:
          - /fhir  # coordinate with `location` in helm/revproxy/gen3.nginx.conf/hapi-fhir-jpaserver-service.conf
  # see https://github.com/hapifhir/hapi-fhir-jpaserver-starter/blob/master/src/test/resources/application.yaml
  extraConfig: |
    hapi:
      fhir:
        fhir_version: R5
        auto_create_placeholder_reference_targets: true    
        delete_expunge_enabled: true    
        expunge_enabled: true

[bwalsh]

@lbeckman314 Can you take a look?
@teslajoy FYI.