如何基于具有实体框架的现有 DbContext 为 Docker 图像创建 SQL 服务器数据库方案？

Question

Started working with Docker images recently, and my main problem is that while my docker-compose can spin up the api, and the database I need, what it lacks is the actual scheme of the database that the entities within my API project look for when getting data .

所以我已经有一个DbContext ，所有的实体，我就是无法弄清楚如何根据我的 API 项目中已经存在的上下文在 SQL 服务器映像中构建数据库。

docker-compose文件供参考：

networks:
  event_localhost:
services:
  api:
    build:
      context: ..
      dockerfile: .docker/Dockerfile
    image: spc-eventapi
    depends_on:
      - db
    ports:
      - 8000:80
    networks:
      - event_localhost
    environment:
      ConnectionStrings__EventDb: 'Server=db,1433;Database=master;User Id=sa;Password=Pass@word;'
  db:
    image: mcr.microsoft.com/mssql/server
    networks:
      - event_localhost
    environment:
      SA_PASSWORD: 'Pass@word'
      ACCEPT_EULA: "Y"
    ports:
      - "1433:1433"
version: '3.9'

上下文和实体： https://github.com/SantaPoneCentralDev/santaPonecentral/tree/Docker/SPC-2021/api/event/event/Event.Data/Entities

Answer 1

有效的修复是使用实体框架允许的功能，being.EnsureCreated()

将以下代码行添加到 Startup 中的 Configure 方法会在容器中创建架构和数据库（如果尚不存在）

            // Ensures DB is created against container
            IServiceScopeFactory serviceScopeFactory = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>();
            using IServiceScope serviceScope = serviceScopeFactory.CreateScope();
            SantaPoneCentralDatabaseContext dbContext = serviceScope.ServiceProvider.GetService<SantaPoneCentralDatabaseContext>();
            dbContext.Database.EnsureCreated();