I want init my PostgresDb during starting Docker environment.

docker-compose.yml :

version: '3.1'
services:
  app:
    container_name: springboot-postgresql
    image: sringboot-postgresql
    build:
      context: .
      dockerfile: ./java/Dockerfile
    ports:
    - "8080:8080"
    depends_on:
      - posgresqldb

  posgresqldb:
    image: postgres
    build:
      context: .
      dockerfile: ./pg/Dockerfile
    ports:
    - "5432:5432"
    environment:
      - POSTGRES_PASSWORD=postgres
      - POSTGRES_USER=postgres
      - POSTGRES_DB=postgres
    volumes:
      - ./postgres-data:/var/lib/postgresql/data
      - ./pg/init.sql:/docker-entrypoint-initdb.d/init.sql

Dockerfile:

FROM postgres:12-alpine
COPY pg/init.sql /docker-entrypoint-initdb.d/

init.sql:

CREATE USER docker;

CREATE DATABASE postgres;

CREATE TABLE public.usr (
    id varchar NOT NULL,
    username varchar NOT NULL,
    "password" varchar NOT NULL,
    active bool NULL,
    email varchar NULL,
    authorities varchar NULL,
    accountnonexpired bool NULL,
    accountnonlocked bool NULL,
    credentialsnonexpired bool NULL,
    enabled bool NULL,
    CONSTRAINT id_pkey PRIMARY KEY (id)
);

GRANT ALL PRIVILEGES ON DATABASE postgres TO docker;

INSERT INTO public.usr
(id, username, "password", active, email, authorities, accountnonexpired, accountnonlocked, credentialsnonexpired, enabled)
VALUES('1', 'User_1', '*****', false, '', '', false, false, false, false);

init.db mounts succeeds and Docker containers create successfully, but I don't have changes in DB.

Can tou tell me what should I do else. Do I need any additional commands to initialize init.sql?

Thank you.