Prisma 2 docker container can't connect MySQL Database container - mysql

Question

I'm developing Backend server with prisma 2, MySQL, Docker-compose, GraphQL-Yoga server
My OS is Windows 10, docker compose use debian-openssl-1.1.x
problem is prisma 2 container can't connect MySQL container
docker-compose.yml
version: "3.7"
services:
mysql:
image: mysql:8.0.19
container_name: mysql
ports:
- 3306:3306
restart: always
environment:
MYSQL_DATABASE: $${MYSQL_DATABASE}
MYSQL_ROOT_PASSWORD: $${MYSQL_ROOT_PASSWORD}
volumes:
- /var/lib/mysql
prisma:
links:
- mysql
depends_on:
- mysql
container_name: prisma
ports:
- "5555:5555"
build:
context: back/prisma
dockerfile: Dockerfile
environment:
MYSQL_URL: $${MYSQL_URL}
MYSQL_ROOT_PASSWORD: $${MYSQL_ROOT_PASSWORD}
volumes:
- /app/prisma
backend:
links:
- mysql
depends_on:
- mysql
container_name: backend
ports:
- "4000:4000"
build:
context: back
dockerfile: Dockerfile
environment:
MYSQL_URL: $${MYSQL_URL}
FRONTEND_URL: $${FRONTEND_URL}
volumes:
- ./back:/app
- ./back/node_modules:/app/node_modules
- ./back/prisma:/app/prisma
frontend:
container_name: frontend
ports:
- "3000:3000"
build:
context: front
dockerfile: Dockerfile
environment:
BACKEND_URL: $${BACKEND_URL}
volumes:
- ./front:/app
- ./front/node_modules:/app/node_modules
.env
MYSQL_URL="mysql://root:prisma#mysql:3306/prisma"
BACKEND_URL=http://localhost:4000
FRONTEND_URL=http://localhost:3000
MYSQL_DATABASE:"prisma"
MYSQL_ROOT_PASSWORD:"prisma"
-schema.prisma
generator client {
provider = "prisma-client-js"
binaryTargets = ["native", "debian-openssl-1.1.x"]
}
datasource db {
provider = "mysql"
url = env("DATABASE_URL")
}
.env in prisma folder
DATABASE_URL="mysql://root:prisma#mysql:3306/prisma"
when i run docker-compose (docker-compose up), prisma container (prisma 2 studio) show this logs
Error in Prisma Client request:
Error:
Invalid `prisma.user.count()` invocation:
Authentication failed against database server at `mysql`, the provided database credentials for `root` are not valid.
Please make sure to provide valid database credentials for the database server at `mysql`.
at PrismaClientFetcher.request (/root/.cache/prisma/studio/app/runtime/index.js:1:52273)
at processTicksAndRejections (internal/process/task_queues.js:97:5)
enter image description here
I think this error occurred because MySQL container has a password different from MYSQL_ROOT_PASSWORD which I wrote in the doctor-compose.yml.
But, i think there seems to be no problem with the setup, why is this error happening?
And if i did not set up MYSQL_ROOT_PASSWORD, what is the default password value generated by MySQL container?
I searched for days to find the answer to this problem, but I could not get the answer. please give me some advices. thank you