Merge branch 'main' into 'main'

updated to docker compose v2

See merge request courses-public/db2023-supplementary/global!3

practice/docker/quickstart/docker-compose.yml

-version: "3.8"
+version: "2.4"
 
 services:
   db:
     image: postgres:15-alpine
     container_name: "postgres_db"
     environment:
-      - POSTGRES_USER=postgres
-      - POSTGRES_PASSWORD=postgres
-      - POSTGRES_DB=pg_db
-      - POSTGRES_PORT=5432
-      - PGDATA=/var/lib/postgresql/data/pgdata
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: pg_db
+      POSTGRES_PORT: 5432
+      PGDATA: /var/lib/postgresql/data/pgdata
     volumes:
       - postgres_data:/var/lib/postgresql/data/pgdata
     ports:
       - "5432:5432"
     restart: always
-#    env_file: # для хранения secrets правильнее использовать .env-файл
-#      - .env
+
   pgadmin:
     image: dpage/pgadmin4
     container_name: "pgadmin"
     environment:
-      - PGADMIN_DEFAULT_EMAIL=admin@admin.com
-      - PGADMIN_DEFAULT_PASSWORD=root
+      PGADMIN_DEFAULT_EMAIL: admin@admin.com
+      PGADMIN_DEFAULT_PASSWORD: root
     volumes:
       - data_pgadmin:/var/lib/pgadmin
     ports:
@@ -30,4 +29,4 @@ services:
 
 volumes:
   postgres_data:
-  data_pgadmin:
+  data_pgadmin:
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