如何通过Java程序执行docker命令 [英] how to execute docker commands through Java program

问题描述

除了调用Docker远程API之外，我还需要开发一个仅与Docker Linux Client(而非Docker守护程序)对话的程序.这是我的代码

Instead of calling Docker remote APIs, I need develop a program which just talks to Docker Linux Client (not Docker daemon). Here is my code

    try {
        String[] command = {"docker", "run", "-it", "tomcat:9", "bash"};
        ProcessBuilder pb = new ProcessBuilder(command);
        pb.inheritIO();
        Process proc = pb.start();

        InputStream is = proc.getInputStream();
        OutputStream os = proc.getOutputStream();

        BufferedReader reader
                = new BufferedReader(new InputStreamReader(is));

        BufferedWriter writer
                = new BufferedWriter(new OutputStreamWriter(os));
        writer.write("pwd");
        writer.flush();
        String line = "";
        while ((line = reader.readLine()) != null) {
            System.out.print(line + "\n");
        }

        proc.waitFor();
    } catch (Exception e) {
        e.printStackTrace();
    }

我总是会出错. 如果我使用"-it"，它将显示无法在非tty输入上启用tty模式"，如果我使用"-i"，则会收到流关闭异常.

I always get errors. If I use "-it", it will says "cannot enable tty mode on non tty input", if I use "-i", I will get a Stream Closed Exception.

有什么办法可以解决这个问题?

Is there any way to solve this problem?

推荐答案

要克服您遇到的错误，应使用"-i"而不是"-it". -t arg告诉docker分配一个伪tty.

To overcome the error you're facing, you should use "-i" instead of "-it". The -t arg tells docker to allocate a pseudo tty.

话虽如此，我同意弗洛里安(Florian)，您应该使用docker remote api. https://docs.docker.com/engine/reference/api/docker_remote_api/

Having said that, I agree with Florian, you should use the docker remote api. https://docs.docker.com/engine/reference/api/docker_remote_api/

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