打包程序错误- sudo:没有tty存在，也没有指定askpass程序

Question

这周，我在家里的实验室里学习如何使用包装器，在那里我有一台ESXi 7主机。

我只是尝试部署一个Ubuntu 18.04虚拟机，但是在构建结束时，我在打包控制台中收到以下错误：

sudo: no tty present and no askpass program specified

这就是我所做的。

Build.json

Preseed.cfg

variables.json

我运行的命令：

sudo packer build -var-file=variables.json build.json

在ESXi中，我看到了VM的构建、完成和重启，它得到了一个IP地址，在我看到上面的消息后，在打包删除VM之前，我得到了一个简短的SSH提示符。

这是完整的错误：

==> Ubuntu-18.04: Connecting to VNC over websocket...
==> Ubuntu-18.04: Waiting 10s for boot...
==> Ubuntu-18.04: Typing the boot command over VNC...
==> Ubuntu-18.04: Waiting for SSH to become available...
==> Ubuntu-18.04: Connected to SSH!
==> Ubuntu-18.04: Provisioning with shell script: /tmp/packer-shell382031289
==> Ubuntu-18.04: sudo: no tty present and no askpass program specified
==> Ubuntu-18.04: Provisioning step had errors: Running the cleanup provisioner, if present...
==> Ubuntu-18.04: Stopping virtual machine...
==> Ubuntu-18.04: Destroying virtual machine...
Build 'Ubuntu-18.04' errored after 8 minutes 21 seconds: Script exited with non-zero exit status: 1.Allowed exit codes are: [0]

==> Wait completed after 8 minutes 21 seconds

==> Some builds didn't complete successfully and had errors:
--> Ubuntu-18.04: Script exited with non-zero exit status: 1.Allowed exit codes are: [0]

==> Builds finished but no artifacts were created.

我做错了什么？

Answer 1

您需要像这样告诉sudo从标准输入中读取数据：

echo 'password' | sudo -S echo "I am groot"

这样，您的sudo命令就可以工作了。