Feat: first implementation of postgres db for backend

config/backdev.docker-compose.yaml

@@ -2,8 +2,8 @@ services:
   postgres:
     image: postgres:latest
     container_name: MyINPulse-DB
-    #ports:
-    #  - 5432:5432
+    ports:
+      - 5432:5432
     volumes:
       - ./postgres:/var/lib/postgresql/data
     environment:

config/backdev.main.env

@@ -3,4 +3,8 @@ POSTGRES_USER=keycloak_db_user
 POSTGRES_PASSWORD=keycloak_db_user_password
 KEYCLOAK_ADMIN=admin
 KEYCLOAK_ADMIN_PASSWORD=admin
-KEYCLOAK_HOSTNAME=localhost
+KEYCLOAK_HOSTNAME=localhost
+
+MYINPULSE_DB=MyINPulse_db
+MYINPULSE_DB_USER=MyINPulse_db_user
+MYINPULSE_DB_PASS=MyINPulse_db_user_pass