Question

我正在尝试将公钥复制到名为＆＃34; hostsfile＆＃34;的文件中的多个主机。我正在写一个脚本，这将允许我这样做，因为我正在设置开发环境，我可能会一遍又一遍地完成它。谷歌搜索我已经能够使用ssh-copy-id命令插入公钥，并且能够为一个主机自动化它。但是，需要对代码进行微调以遍历hosts文件中的每个主机...不幸的是，它完成了第一个条目，然后退出：以下是代码...提前感谢任何帮助....

#!/usr/bin/expect
set timeout 10
set f [open "hostsfile"]
set hosts [split [read $f] "\n"]
close $f

set exp_internal 1
foreach host $hosts {
    spawn ssh-copy-id -i /home/vagrant/.ssh/ansible-use-ssh-key.pub $host
    expect_after eof { exit 0 }
    expect "password:" { send "vagrant\r" }
    expect_after eof { exit 0 }
    expect "$ "
    }
send "exit\r"
expect eof

Glen这是我的评论....你能否提出建议，如果你不介意完整代码的帮助：

#!/usr/bin/expect
set timeout 10
set f [open "hostsfile"]
close $f

set hosts [split [read -nonewline $f] "\n"]

foreach host $hosts {
    spawn ssh-copy-id -i /home/vagrant/.ssh/ansible-use-ssh-key.pub $host
    expect "password:" 
    send "vagrant\r"
    expect eof
}
puts done

嗨Glen如你所说，它使用了以下代码。但是，如果密钥已存在于其中一个主机上，则该进程将终止。如果远程主机响应密钥已经存在，你能建议我如何添加if / else状态以使其不中断吗？感谢您的帮助。

以下是适用于第一个问题的代码。

#!/usr/bin/expect
set timeout 10
set f [open "hostsfile"]
set hosts [split [read -nonewline $f] "\n"]
close $f


foreach host $hosts {
    spawn ssh-copy-id -i /home/vagrant/.ssh/ansible-use-ssh-key.pub $host
    expect "password:"
    send "vagrant\r"
    expect eof
}

完成

Answer 1

你已经指示期望在eof之后退出。别这么做。

foreach host $hosts {
    spawn ssh-copy-id -i /home/vagrant/.ssh/ansible-use-ssh-key.pub $host
    expect "password:" 
    send "vagrant\r"
    expect eof
}
puts done

请注意，您的$ hosts列表中有一个空的最后一个元素。使用read -nonewline读取文件：

set hosts [split [read -nonewline $f] "\n"]

Answer 2

格伦，我找到了第二个问题的答案......以下是显然对我有用的代码。感谢您的帮助，让我了解了这一点。

#!/usr/bin/expect
set timeout 10
set f [open "hostsfile"]
set hosts [split [read -nonewline $f] "\n"]
close $f

foreach host $hosts {
    spawn ssh-copy-id -i /home/vagrant/.ssh/ansible-use-ssh-key.pub $host
    expect {
            "password:" {
                    send "vagrant\r"
                    exp_continue
                }
                "already exist on the remote system." {
                    exp_continue
                }
    expect eof
        }
}
puts done

迭代ssh-copy-id命令以在多个主机上进行复制

2 个答案: