从 java 程序执行 docker 命令时出错

Question

我尝试从 Java 代码执行以下 docker 命令：

command: ***docker exec -it reverent_hoover date***

（这里，reverente_hoover是容器名称。）

当我从 Linux 执行上述命令时，它给了我以下输出：

Wed May 6 05:19:28 UTC 2015

但是当我尝试从 Java 代码执行它时，它给了我这个错误：

time="2015-05-05T19:31:19+05:30" level="fatal" msg="cannot enable tty mode on non tty input"

我不知道如何解决这个问题。

Answer 1

Issue 10734 提及：

The java process is not providing a TTY to the docker CLI but you've asked for a TTY by specifying -t in your command.
So, does the image actually need a TTY? If not, don't specifiy -t... if the image doesn't need stdin at all don't specify -i either.

If it does need the TTY, then you'll need to setup the TTY for your command and it should work.

例如，参见“persistent local tty session with java”

Instead of Runtime.getRuntime().exec("command"); do Runtime.getRuntime().exec("/bin/sh"); and hold on to the Process object

"Runtime.exec with Unix console programs" 说明在使用 less:

的上下文中

    Process p = Runtime.getRuntime().exec(new String[] {"sh", "-c",
            "less >/dev/tty"});
    OutputStream out = p.getOutputStream();
    out.write("Lengthy message".getBytes());
    out.close();
    System.out.println("=> "+p.waitFor());

从 java 程序执行 docker 命令时出错

Getting error while executing the docker command from java program

java

docker