Create MySQL db through init.sh

Docker Desktop for Windows
1

Hey I am fairly new to docker and am trying to create a C# api using aspnet core and mysql with several users when using docker compose up. To do this I have created a shell script that runs upon entry.
docker-compose.yaml

volumes:
  webshopdata:

networks:
  webshopnet:

services:
  webshopdb:
    image: mysql:latest
    container_name: ${MYSQL_SERVER_NAME}
    environment:
      - MYSQL_USER=${MYSQL_USER}
      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
      - MYSQL_DATABASE=${MYSQL_DATABASE}
    volumes:
      - webshopdata:/var/lib/mysql
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql
      - ./grant_privileges.sql:/docker-entrypoint-initdb.d/grant_privileges.sql
      - ./wait_until.sh:/docker-entrypoint-initdb.d/wait_until.sh
      - ./init.sh:/docker-entrypoint-initdb.d/init.sh
    entrypoint: ["/docker-entrypoint-initdb.d/init.sh", "${MYSQL_USER}", "${MYSQL_ROOT_PASSWORD}", "${MYSQL_DATABASE}"]
    networks:
      - webshopnet

  webshopapi:
    build: .
    container_name: webshopapi
    environment:
      - MYSQL_SERVER_NAME=${MYSQL_SERVER_NAME}
    env_file:
      - ./secrets.env
      - asp.env
      - .env
    ports:
      - 8000:80
      - 8001:443
    networks:
      - webshopnet
    volumes:
      - ./certs:/https
      - ./webshop:/App
    depends_on:
      - webshopdb

Dockerfile

# Use the SDK image for building the application
FROM mcr.microsoft.com/dotnet/sdk AS build_env
WORKDIR /App

# Copy the entire source tree to the Docker image
COPY WebShop.csproj .

# Restore dependencies
RUN dotnet restore WebShop.csproj

COPY . .

# Publish the application
RUN dotnet publish WebShop.csproj -c Release -o out

# Use the ASP.NET runtime image for running the application
FROM mcr.microsoft.com/dotnet/aspnet
WORKDIR /App

EXPOSE 80

# Copy the published output from the build stage
COPY --from=build_env /App/out .

# Specify the entry point for the application
ENTRYPOINT ["dotnet", "WebShop.dll"]

Init.sh

#!/bin/bash

USERNAME=$1
PASSWORD=$2
DATABASE=$3

echo "${USERNAME}, ${PASSWORD}, ${DATABASE}"

echo "Waiting for MySQL to be ready..."
until mysql -u${USERNAME} -p${PASSWORD} -e "SELECT 1" &> /dev/null; do
    echo "Waiting for MySQL..."
    sleep 2
done

# Wait for MySQL to be ready
echo "Waiting for MySQL to be ready..."
/docker-entrypoint-initdb.d/wait_until.sh "mysql -u${USERNAME} -p${PASSWORD} -e 'SELECT 1'"

# Execute the initial SQL script
echo "Running initial SQL script..."
mysql -u${USERNAME} -p${PASSWORD} < /docker-entrypoint-initdb.d/init.sql

echo "Database is ready."

# Start the WebShop API to apply migrations and seed data
echo "Starting the WebShop API to apply migrations..."
dotnet /App/WebShop.dll &
API_PID=$!

# Declare all tables
declare -a tables=("AspNetUsers" "AspNetRoles" "AspNetUserRoles" "AspNetUserClaims" "AspNetUserLogins" "AspNetRoleClaims" "AspNetUserTokens" "Addresses" "Products" "Orders" "OrderedProducts")

# Wait for migrations to complete
echo "Waiting for migrations to complete..."

for table in "${tables[@]}"
do
    /docker-entrypoint-initdb.d/wait_until.sh "mysql -u${USERNAME} -p${PASSWORD} -e 'SELECT 1 FROM ${DATABASE}.${table} LIMIT 1;'"
    echo "${table} created."
done

echo "All tables created"

# Kill the API process
kill $API_PID

# Execute the post-migration SQL script
echo "Running post-migration SQL script to grant privileges..."
mysql -u${USERNAME} -p${PASSWORD} < /docker-entrypoint-initdb.d/grant_privileges.sql

echo "Privileges granted."

The wait until script is this wait-until script copy pasted.
init.sql

CREATE DATABASE IF NOT EXISTS ${MYSQL_DATABASE};

CREATE USER IF NOT EXISTS '${MYSQL_USER}'@'%' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}';
CREATE USER IF NOT EXISTS '${MYSQL_EMPLOYEE_USER}'@'%' IDENTIFIED BY '${MYSQL_EMPLOYEE_PASSWORD}';
CREATE USER IF NOT EXISTS '${MYSQL_CLIENT_USER}'@'%' IDENTIFIED BY '${MYSQL_CLIENT_PASSWORD}';
CREATE USER IF NOT EXISTS '${MYSQL_DEFAULT_USER}'@'%' IDENTIFIED BY '${MYSQL_DEFAULT_PASSWORD}';

GRANT ALL PRIVILEGES ON *.* TO '${MYSQL_USER}'@'%' WITH GRANT OPTION;
GRANT SELECT ON '${MYSQL_DATABASE}'.* TO ''@'%' WITH GRANT OPTION;

FLUSH PRIVILEGES;

I run my c# program to create my tables and seed the data.
The grant_priviliges.sql script just grants the users the correct privileges for each of the tables.
My docker compose build works just fine but when trying to run docker compose up I get this output:

webshopdb   | root, RootPwd1, WebShopDB
webshopdb   | Waiting for MySQL to be ready...
webshopdb   | mysql: [Warning] Using a password on the command line interface can be insecure.
webshopdb   | ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
webshopapi  | The command could not be loaded, possibly because:
webshopapi  |   * You intended to execute a .NET application:
webshopapi  |       The application 'WebShop.dll' does not exist.
webshopapi  |   * You intended to execute a .NET SDK command:
webshopapi  |       No .NET SDKs were found.
webshopapi  |
webshopapi  | Download a .NET SDK:
webshopapi  | https://aka.ms/dotnet/download
webshopapi  |
webshopapi  | Learn about SDK resolution:
webshopapi  | https://aka.ms/dotnet/sdk-not-found
webshopapi exited with code 145
webshopdb   | mysql: [Warning] Using a password on the command line interface can be insecure.
webshopdb   | ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

The last two lines keep repeating, I assume because something is wrong in my init.sh.
Docker version: 4.33.1
OS: Windows 11 version 10.0.22631

I can give additional info if requested.