如何从c#应用程序调用docker run

Question

我有一个 WPF 应用程序，在处理文件时需要使用 docker 进程。 docker 容器构建在盒子上，当前使用 WPF 应用程序处理文件后，用户必须启动命令提示符并输入

docker run --it --rm -v folderdedirect process parameters_including_filePath

进行进一步加工。

我想将其包含在 WPF 应用程序中。我大概可以将

system.diagnostics.process

与

cmd.exe

一起使用吗？我查看了

Docker.dotnet

，但我一生都无法弄清楚它应该如何运行本地容器。

Answer 1

这就是我最终的做法，但可能还有更好的方法。

var processInfo = new ProcessStartInfo("docker", $"run -it --rm blahblahblah");

processInfo.CreateNoWindow = true;
processInfo.UseShellExecute = false;
processInfo.RedirectStandardOutput = true;
processInfo.RedirectStandardError = true;

int exitCode;
using (var process = new Process())
{
    process.StartInfo = processInfo;
    process.OutputDataReceived += new DataReceivedEventHandler(logOrWhatever());
    process.ErrorDataReceived += new DataReceivedEventHandler(logOrWhatever());

    process.Start();
    process.BeginOutputReadLine();
    process.BeginErrorReadLine();
    process.WaitForExit(1200000);
    if (!process.HasExited)
    {
        process.Kill();
    }

    exitCode = process.ExitCode;
    process.Close();
}

Answer 2

更现代的解决方案将与包一起使用

DotNet.Testcontainers.Builders

这里是代码示例及其用法：

ContainerBuilder builder = new ContainerBuilder()
              // use particular version always 
              .WithImage("postgres")
              // name it nicely
              .WithName("PSQL")
              .WithBindMount("/var/run/docker.sock", "/var/run/docker.sock")
              // with some configuration
              .WithEnvironment(new Dictionary<string, string>())
              .WithEnvironment("DOCKER_HOST", "unix:///var/run/docker.sock")
              .WithWaitStrategy(Wait.ForUnixContainer())
              .WithOutputConsumer(Consume.RedirectStdoutAndStderrToConsole());

        builder = builder.WithPortBinding(5432, 5432);
        PsqlStack = builder.Build();
        await PsqlStack.StartAsync();

Answer 3

根据我的上下文修改了上面的代码。最困难的部分是确定如何监控流程是否完成。您可以尝试设置事件侦听器，如此处所示。有其他条件需要验证（如果客户端发送终止信号），我决定继续监视 process.HasExited 值。

private static void RunDockerImage(ContainerData containerData)
    {
        var processInfo = new ProcessStartInfo("docker", $"run "+containerData.ImageName);

        processInfo.CreateNoWindow = true;
        processInfo.UseShellExecute = false;
        processInfo.RedirectStandardOutput = true;
        processInfo.RedirectStandardError = true;

        int exitCode;
        using (var process = new Process())
        {
            process.StartInfo = processInfo;

            // indicate process is started
            StartUpdateOrch(containerData);

            process.Start();
            process.BeginOutputReadLine();
            process.BeginErrorReadLine();

            while(!process.HasExited)
            {
                // continually check if kill signal is set
                if (getKillSignal())
                {
                    process.Kill();
                } 
                Thread.Sleep(2000);
            }

            exitCode = process.ExitCode;
            containerData.exitCode = exitCode;

            // indicate process is done
            FinishUpdateOrch(containerData);

            process.Close();
        }
    }