使用docker compose 構建多個鏡像

• 定義docker compose

  version: '3'
  
  services: 
    composedb:
      image: mysql/mysql-server
      container_name: composedb
      command: mysqld --character-set-server=utf8 --collation-server=utf8_general_ci
      restart: always
      ports:
       - "3306:3306"
      environment:
       MYSQL_ROOT_PASSWORD: pwd123456
       MYSQL_USER: test
       MYSQL_PASSWORD: pwd123456
      volumes:
       - /docker/network/beta/mysql-init:/docker-entrypoint-initdb.d  
    web:
      build: .
      container_name: aspnetcore
      ports:
       - "8004:80"
      #entrypoint: "sh ./wait-for-it.sh composedb:3306 -- sh  ./aspnetcore.sh"
      #command: ["./wait-for-it.sh", "composedb:3306", "--", "./aspnetcore.sh"]
      depends_on:
       - composedb

   

• 修改初始化實力代碼當數據庫鏡像初始化完畢后執行數據初始化

   public static async Task SeedAsync(IApplicationBuilder ApplicationBuilder, ILoggerFactory LoggerFactory, int? retry = 0)
          {
              var retryForAvaibility = retry.Value;
              using (var scope = ApplicationBuilder.ApplicationServices.CreateScope())//數據庫未初始化失敗會catch
              {
                  try
                  {
                      var context = (UserContext)scope.ServiceProvider.GetService(typeof(UserContext));
                      var logger = (ILogger<UserContextSeed>)scope.ServiceProvider.GetService(typeof(ILogger<UserContextSeed>));
                      logger.LogDebug("Begin UserContextSeed SeedAsyc");
                      context.Database.Migrate();
                      if (!context.Users.Any())
                      {
                          context.Add(new Model.UserInfo { Name = "cyao", Company = "nocompany", Title = "軟件工程師" });
                          context.SaveChanges();
                      }
                  }
                  catch (System.Exception ex)
                  {
                      retryForAvaibility++;
                      if (retryForAvaibility > 10)
                      {
                          var logger = LoggerFactory.CreateLogger(typeof(UserContextSeed));
                          logger.LogError(ex.Message);
                          await SeedAsync(ApplicationBuilder, LoggerFactory, retryForAvaibility);
                      }
                  }
              }
          }

• 其他的一些問題

  1.高版本的MySQL 加密方法使用caching_sha2_password
  2.低版本的Mysql創建的用戶會有權限問題
  使用root用戶進入到bash
  然后執行：
  GRANT ALL PRIVILEGES ON *.* TO 'test'@'%' WITH GRANT OPTION;

• liunx 跑到對應的docker-compose 文件路徑后執行build 然后將docker-compose up起來
• docker-compose build 構建dockers-compose鏡像
• docker-compose up
• docker-compose down