feat: postgres db added

Author: mofahsan

docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3.8'
+
+services:
+  postgres:
+    image: postgres:latest
+    container_name: postgres-container
+    restart: always
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER}    
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD} 
+      POSTGRES_DB: ${DATABASE_NAME}      
+    ports:
+      - "5433:5432"              
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data: