Ansible ping 失败 - 主机无法访问

Question

我刚刚开始学习 Ansible 的基础知识，并查找了为什么会出现上述错误但不知道如何解决。这是跟踪：

Me-Air:ansible me$ ansible all -m ping -vvv
Using /private/etc/ansible/ansible.cfg as config file
<Public_IP> ESTABLISH SSH CONNECTION FOR USER: [my_user_name_on_EC2_instance]
<Public_IP> SSH: EXEC ssh -C -q -o ControlMaster=auto -o ControlPersist=60s -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 -o ControlPath=/Users/me/.ansible/cp/ansible-ssh-%h-%p-%r -tt [Public_IP] '/bin/sh -c '"'"'( umask 22 && mkdir -p "` echo $HOME/.ansible/tmp/ansible-tmp-... `" && echo "` echo $HOME/.ansible/tmp/ansible-tmp-... `" )'"'"''
Public_IP | UNREACHABLE! => {
    "changed": false,
    "msg": "SSH encountered an unknown error during the connection. We recommend you re-run the command using -vvvv, which will enable SSH debugging output to help diagnose the issue",
    "unreachable": true
}

------

之前有人问我：

The authenticity of host 'public IP' can't be established.
RSA key fingerprint is ...[key].
Are you sure you want to continue connecting (yes/no)? yes

这是我在主机文件中的内容：

[name_of_the_EC2_instance]
Public_IP 

并在配置文件中：

[defaults]
host_key_checking = False

我在那里遗漏了一些东西。有任何想法吗？

提前致谢。

Answer 1

正如评论中所探讨的，未指定私钥文件。已尝试使用默认文件 ( .ssh/id_dsa, .ssh/id_dsa) 但未找到。

可以通过多种方式添加私钥文件：

(1) 使用ssh代理： ssh-add ~/.ssh/my-key.pem

(2) 违约ansible.cfg：

[defaults]
private_key_file=~/.ssh/my-key.pem

(3) 为清单中的每个主机指定：

my-host-ip ansible_ssh_private_key_file=~/.ssh/my-key.pem