Question

我在Windows 10上运行 docker for Windows 18.03 。我在自己的VS 2017项目中使用来自 docker compose file 的 microsoft / mssql-server-windows-express （来自Windows Server）映像。我在这里尝试完成的是从脚本初始化数据库。我尝试使用 docker.compose.yml 中的“命令”开关，但没有取得多大成功......

这是docker撰写文件：

  myscustomservice:
    image: myscustomservice
    build:
      context: .\myscustomservice
      dockerfile: Dockerfile

  db:
    image: microsoft/mssql-server-windows-express
    volumes:
       - ".\\data:C:\\data"
    #command: --init-file C:\\data\\CreateLocalDB.sql
    #command: "sqlcmd -U sa -P sUper45!pas5word -i C:\\data\\CreateLocalDB.sql"
    restart: always
    ports: 
      - "1533:1433"
    environment:
      - "sa_password=sUper45!pas5word"
      - "ACCEPT_EULA=Y"

volumes:
  db-data:

请注意，我已经尝试了注释的2个命令行。第一个失败说它找不到文件而第二个只是用那个替换正常的命令行，所以容器没有启动（或者没有停留）。

在我的本地驱动器上，我有一个C：\ myscustomservice \ data驱动器，其中包含文件CreateLocalDB.sql。它安装在C：\ data文件夹中的容器上（当我在容器中运行powershell时，我看到它。）

sql文件如下所示：

USE MASTER

CREATE DATABASE [customDB_test]
 CONTAINMENT = NONE
 ON  PRIMARY 
( NAME = N'customDB_test', FILENAME = N'C:\data\customDB_test.mdf' , SIZE = 1594752KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
 LOG ON 
( NAME = N'customDB_test_log', FILENAME = N'C:\data\customDB_test.ldf' , SIZE = 3584KB , MAXSIZE = 2048GB , FILEGROWTH = 10240KB )
GO

有谁知道我怎么能这样做？网上的所有示例都来自linux容器，此图像来自Windows Server容器。

Answer 1

好的，只是你知道，我终于不得不创建一个依赖于＆＃34; db＆＃34;调用一个检查数据库是否存在的powershell脚本。如果它不存在，我调用mssql脚本来创建它。

这是dockerfile：

FROM microsoft/wcf:4.7.1
ARG source
# Creates a directory for custom application
RUN mkdir C:\MyCustomService

COPY . c:\\MyCustomService

# Remove existing default web site
RUN powershell -NoProfile -Command \
Import-module WebAdministration; \
Remove-WebSite -Name "'Default Web Site'"

# Configure the new site in IIS. Binds it to port 80 otherwise it won't work because it needs a default app listening on this port
RUN powershell -NoProfile -Command \
Import-module IISAdministration; \
New-IISSite -Name "MyCustomService" -PhysicalPath C:\MyCustomService -BindingInformation "*:80:";


# Add net.tcp support on the new site and change it to web aplication.
RUN Import-Module WebAdministration; Set-ItemProperty "IIS:\\Sites\\MyCustomService" -name bindings -value (@{protocol='net.tcp';bindingInformation='808:*'},@{protocol='http';bindingInformation='*:80:'});
RUN windows\system32\inetsrv\appcmd.exe set app 'MyCustomService/' /enabledProtocols:"http,net.tcp"
# This instruction tells the container to listen on port 83.
EXPOSE 80
EXPOSE 808

这是新的docker-compose文件：

myscustomservice:
  image: myscustomservice
  build:
    context: .\myscustomservice
    dockerfile: Dockerfile
  ports: 
  - "83:80"
  - "1010:808"
  depends_on: 
    - db
    - db-init

  db:
    image: microsoft/mssql-server-windows-express
    volumes:
     - ".\\data:C:\\data"

    ports: 
      - "1533:1433"
    environment:
      - "sa_password=sUper45!pas5word"
      - "ACCEPT_EULA=Y"
      - 'attach_dbs=[{"dbName":"customDB_test","dbFiles":["C:\\data\\customDB_test.mdf","C:\\data\\customDB_test.ldf"]}]'
  volumes:
    db-data: 


db-init:
  image: microsoft/mssql-server-windows-express
  volumes:
     - ".\\data:C:\\data"

  command: powershell -executionpolicy bypass "C:\\data\\initialize_db.ps1 -insertTestData"

  environment:
    - "sa_password=sUper45!pas5word"
    - "ACCEPT_EULA=Y"


  depends_on: 
    - db

注意＆＃34; attach_dbs＆＃34; db服务中的环境变量。这样，它会尝试绑定到现有文件，因此db_init服务运行的脚本将找到数据库，不会重新创建它。

powershell脚本＆＃34; initialize_db.ps1＆＃34; ：

param([switch]$insertTestData)

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SmoExtended") | Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.ConnectionInfo") | Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SmoEnum") | Out-Null

$server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") "db\SQLEXPRESS"
$database = "customDB_test"
$dbs = $server.Databases
$exists = $false

#This sets the connection to mixed-mode authentication 
$server.ConnectionContext.LoginSecure=$false; 

#This sets the login name 
$server.ConnectionContext.set_Login("sa"); 

#This sets the password 
$server.ConnectionContext.set_Password("sUper45!pas5word")

try 
{
    foreach ($db in $dbs) 
    {
        Write-Host $db.Name
        if($db.Name -eq $database) 
        {
            Write-Host "Database already exist"
            $exists = $true
        }
    }

}
catch 
{
    Write-Error "Failed to connect to $server"
}


if(-not $exists)
{
    Write-Host "Database doesn't exist"
    $StopWatch = [System.Diagnostics.Stopwatch]::StartNew()

    sqlcmd -S 'db' -U sa -P 'sUper45!pas5word' -i 'C:\\data\\CreateLocalDB_schema.sql'
    Write-Host "Database created"
    $StopWatch.Elapsed

    if($insertTestData)
    {
        Write-Host "Begining data insertion..." 
        sqlcmd -S 'db' -U sa -P 'sUper45!pas5word' -i 'C:\\data\\CreateLocalDB_data.sql'
        Write-Host "Data inserted"
        $StopWatch.Elapsed
    }

    $StopWatch.Stop()
}

sqlcmd -S 'db' -U sa -P 'sUper45!pas5word' -i 'C:\\data\\CreateLocalDB_user.sql'

该脚本至少运行1个，最多3个SQL脚本：

CreateLocalDB_user.sql - 重新创建自定义登录和db用户，以便您可以与此用户建立连接
CreateLocalDB_schema.sql - 如果数据库不存在则创建数据库
CreateLocalDB_data.sql - 如果指定了＆＃34; insertTestData＆＃34;则添加启动数据。在呼叫中切换（在db_init服务下的docker compose中）

该服务的dockerfile公开了端口80的http和808的net.tcp以及我的web.config文件，用于＆＃34; myscustomservice＆＃34;像这样公开wcf服务：

      <host>
          <baseAddresses>
            <add baseAddress="net.tcp://localhost:1010/myscustomservice/Customer.svc"/>
          </baseAddresses>
        </host>

Docker撰写如何在Windows容器上初始化SQL Server数据库？

1 个答案: