prepare to redo experiments. find out vertx id

.gitignore

@@ -7,3 +7,4 @@ __pycache__
 code
 kolloquium
 ma
+pgdata
\ No newline at end of file

compose.yml

@@ -40,8 +40,9 @@ services:
     shm_size: 10gb
     environment:
       - PGUSER
-      - POSTGRES_USER=$PGUSER
-      - POSTGRES_DB=$PGDATABASE
+      - POSTGRES_USER=postgres
+      - POSTGRES_DB=postgres
+      - POSTGRES_PW=postgres
       - POSTGRES_PASSWORD_FILE=/run/secrets/postgres_db_pass
     ports:
       - 5432:5432
@@ -51,6 +52,7 @@ services:
       start_interval: 1s
     volumes:
       - ./postgres/initdb/00-initdb.sql:/docker-entrypoint-initdb.d/00-initdb.sql:ro
+      - ./pgdata:/var/lib/postgresql/data
     configs:
       - postgres_conf
     secrets: