add optional dashboard module

ccp/modules/dashboard-compose.yml

@@ -10,7 +10,7 @@ services:
       BLAZE_BASE_URL: "http://blaze:8080/fhir/"
       PG_HOST: "dashboard-db"
       PG_USERNAME: "dashboard"
-      PG_PASSWORD: "${DASHBOARD_DB_PASSWORD}" # Set in exporter-setup.sh
+      PG_PASSWORD: "${DASHBOARD_DB_PASSWORD}" # Set in dashboard-setup.sh
       PG_DBNAME: "dashboard"
 
   dashboard-db:
@@ -18,7 +18,7 @@ services:
     container_name: bridgehead-ccp-dashboard-db
     environment:
       POSTGRES_USER: "dashboard"
-      POSTGRES_PASSWORD: "${DASHBOARD_DB_PASSWORD}" # Set in exporter-setup.sh
+      POSTGRES_PASSWORD: "${DASHBOARD_DB_PASSWORD}" # Set in dashboard-setup.sh
       POSTGRES_DB: "dashboard"
     volumes:
       - "/var/cache/bridgehead/ccp/dashboard-db:/var/lib/postgresql/data"

ccp/modules/dashboard.md

@@ -1 +1,36 @@
-# TODO David Scholz
+# fhir2sql
+fhir2sql connects to Blaze, retrieves data, and syncs it with a PostgreSQL database. The application is designed to run continuously, syncing data at regular intervals.
+The Dashboard module is a optional component of the Bridgehead CCP setup. When enabled, it starts two Docker services: **fhir2sql** and **dashboard-db**. Data held in PostgreSQL is only stored temporarily and Blaze is considered to be the 'leading system' or 'source of truth'.
+
+## Services
+### fhir2sql
+* Image: docker.verbis.dkfz.de/cache/samply/fhir2sql:latest
+* Container name: bridgehead-ccp-dashboard-fhir2sql
+* Depends on: dashboard-db
+* Environment variables:
+  - BLAZE_BASE_URL: The base URL of the Blaze FHIR server (set to http://blaze:8080/fhir/)
+  - PG_HOST: The hostname of the PostgreSQL database (set to dashboard-db)
+  - PG_USERNAME: The username for the PostgreSQL database (set to dashboard)
+  - PG_PASSWORD: The password for the PostgreSQL database (set to the value of DASHBOARD_DB_PASSWORD)
+  - PG_DBNAME: The name of the PostgreSQL database (set to dashboard)
+
+### dashboard-db
+
+* Image: docker.verbis.dkfz.de/cache/postgres:${POSTGRES_TAG}
+* Container name: bridgehead-ccp-dashboard-db
+* Environment variables:
+  - POSTGRES_USER: The username for the PostgreSQL database (set to dashboard)
+  - POSTGRES_PASSWORD: The password for the PostgreSQL database (set to the value of DASHBOARD_DB_PASSWORD)
+  - POSTGRES_DB: The name of the PostgreSQL database (set to dashboard)
+* Volumes:
+  - /var/cache/bridgehead/ccp/dashboard-db:/var/lib/postgresql/data
+
+The volume used by dashboard-db can be removed safely and should be restored to a working order by re-importing data from Blaze.
+
+### Environment Variables
+* DASHBOARD_DB_PASSWORD: A generated password for the PostgreSQL database, created using a salt string and the SHA1 hash function.
+* POSTGRES_TAG: The tag of the PostgreSQL image to use (not set in this module, but required by the dashboard-db service).
+
+
+### Setup
+To enable the Dashboard module, set the ENABLE_DASHBOARD environment variable to true. The dashboard-setup.sh script will then start the fhir2sql and dashboard-db services, using the environment variables and volumes defined above.