fix: use .env or system env to manage backend test db connection

Author: abachman-dsac

backend/compose.test.yml

@@ -11,18 +11,18 @@ services:
       service: db
     environment:
       POSTGRES_DB: npd_test
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
+      POSTGRES_USER: ${NPD_DB_USER:-postgres}
+      POSTGRES_PASSWORD: ${NPD_TEST_DB_PASSWORD:-postgres}
 
   db-migrations:
     extends:
       file: docker-compose.yml
       service: db-migrations
     environment:
       # db-migrations service
-      FLYWAY_URL: jdbc:postgresql://db:5432/npd_test
-      FLYWAY_USER: postgres
-      FLYWAY_PASSWORD: postgres
+      FLYWAY_URL: jdbc:postgresql://${NPD_TEST_DB_HOST:-db}:${NPD_DB_PORT:-5432}/npd_test
+      FLYWAY_USER: ${NPD_DB_USER:-postgres}
+      FLYWAY_PASSWORD: ${NPD_DB_PASSWORD:-postgres}
 
   django-web:
     extends:
@@ -34,8 +34,8 @@ services:
       DJANGO_ALLOWED_HOSTS: "['localhost', '127.0.0.1']"
       DATABASE_ENGINE: 'django.db.backends.postgresql'
       DEBUG: False
-      NPD_DB_USER: postgres
-      NPD_DB_PASSWORD: postgres
-      NPD_DB_HOST: db
+      NPD_DB_USER: ${NPD_DB_USER:-postgres}
+      NPD_DB_PASSWORD: ${NPD_DB_PASSWORD:-postgres}
+      NPD_DB_HOST: ${NPD_DB_HOST:-db}
       NPD_DB_NAME: npd_test
-      NPD_DB_PORT: 5432
+      NPD_DB_PORT: ${NPD_DB_PORT:-5432}