How can I control services start sequence of asp.net web api and mysql db service? - mysql

Question

I have a problem now. I have tried a few methods from Google to control services start sequence.for example, use wait-for-it.sh、 write shell script ,but all doesn't work for me.
I'm using macOS and my project is asp.net core web api in .net 6 core and using entity framework to connect and migrate to mysql database.
dockerfile
`# Get base sdk Image from Microsoft
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build-env
WORKDIR /app
#copy the csprog file and restore any dependecies
COPY *.csproj ./
RUN dotnet restore
#copy the project files and build our release
COPY . ./
RUN dotnet publish -c Release -o out
#Generate runtime image
FROM mcr.microsoft.com/dotnet/aspnet:6.0
WORKDIR /app
EXPOSE 80
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "SuperHeroAPI.dll"]`
docker-compose.yml
`version: '3.4'
services:
api:
build:
context: .
dockerfile: Dockerfile
ports:
- "8080:80"
container_name: super
depends_on:
- db
restart: always
environment:
- DBHOST=db
- ASPNETCORE_ENVIRONMENT=Development
db:
image: mysql:8.0.29
container_name: db
environment:
MYSQL_ROOT_PASSWORD: 123456
MYSQL_DATABASE: apidb
ports:
- "3306:3306"
`
program.cs
`
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllers();
builder.Services.AddCors();
var host = builder.Configuration["DBHOST"] ?? "db";
var port = builder.Configuration["DBPORT"] ?? "3306";
var password = builder.Configuration["DBPASSWORD"] ?? "123456";
builder.Services.AddDbContext<DataContext>(options =>
{
options.UseMySql($"server={host};userid=root;pwd={password};port={port};database=apidb", new MySqlServerVersion("8.0.29"));
});
var dataContext = builder.Services.BuildServiceProvider().GetService<DataContext>();
dataContext.Database.Migrate();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddScoped<ISuperHeroDao, SuperHeroImpl>();
builder.Services.AddScoped<SuperHeroService>();
var app = builder.Build();
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.UseAuthorization();
app.MapControllers();
app.Run();
Datacontext.cs
`using Microsoft.EntityFrameworkCore;
namespace SuperHeroAPI.Data
{
public class DataContext : DbContext
{
public DataContext(DbContextOptions<DataContext> options) : base(options) { }
public DbSet<SuperHero> SuperHeroes { get; set; }
}
}`
based on above all code , I can start my api service finally! but api would restart repeatedly until db service start successfully.I don't want that . I wanna start db service until succeed and then start api service so it won't restart repeatedly.
I'm sorry I'm not a native english speaker ,maybe I can't express my idea clearly , I would appreciate you if you could provide useful solutions and ideas.
expect to start db service first until succeed and then start api service. I've tried wait-for-it.sh. shell scripts .doesn't work.