我是DevOps的新手，并且正在学习Ansible作为AWS EC2 Ubuntu 16.04 LTS的初学者。
最初，我已经启动了 2 个 EC2 实例，并在安全组中打开了 SSH 端口 22，我将这些实例命名为主实例和从实例。
当一切启动并运行时，我进入了主实例。 我将逐一列出步骤如下
1. 我创建了一个名为ansible的用户并发布了密码
ubuntu@ip-172-31-17-94:~$ sudo su
root@ip-172-31-17-94:/home/ubuntu# adduser ansible
Adding user `ansible' ...
Adding new group `ansible' (1001) ...
Adding new user `ansible' (1001) with group `ansible' ...
Creating home directory `/home/ansible' ...
Copying files from `/etc/skel' ...
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Changing the user information for ansible
Enter the new value, or press ENTER for the default
Full Name []:
Room Number []:
Work Phone []:
Home Phone []:
Other []:
Is the information correct? [Y/n]
2. 在/etc/ssh/sshd_config 中取消注释 PermitRootLogin yes 和 PasswordAuthentication yes，然后重新启动ssh
3.更改了Visudo文件，为ansible用户添加了root访问权限
root@ip-172-31-17-94:/home/ubuntu# visudo
编辑
# User privilege specification
root ALL=(ALL:ALL) ALL
ansible ALL=(ALL:ALL) ALL
已保存并已关闭
4.生成的ssh注册机
ansible@ip-172-31-17-94:~$ ssh-keygen -t rsa -b 4096
Generating public/private rsa key pair.
Enter file in which to save the key (/home/ansible/.ssh/id_rsa):
Created directory '/home/ansible/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/ansible/.ssh/id_rsa.
Your public key has been saved in /home/ansible/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:wah0yD9Ngf7hzLIihkEFvNYjPNrzcLubNxGnqFKYrik ansible@ip-172-31-17-94
The key's randomart image is:
+---[RSA 4096]----+
|... .. |
| . o ..o . |
|. + +.o + |
| B + +ooo. |
|++o o.oOS. |
|= = o +.= |
|.+ * . + |
|Eo+ +.+ |
|=o .+= . |
+----[SHA256]-----+
5. 安装 Ansible 软件包
$ sudo apt-get install software-properties-common
$ sudo apt-add-repository ppa:ansible/ansible
$ sudo apt-get update
$ sudo apt-get install ansible
太棒了..一切都已启动，ansible 已安装在主服务器中 我发出了一个命令来测试ansible
ansible@ip-172-31-17-94:~$ ansible --version
ansible 2.3.0.0
config file = /etc/ansible/ansible.cfg
configured module search path = Default w/o overrides
python version = 2.7.12 (default, Nov 19 2016, 06:48:10) [GCC 5.4.0 20160609]
6. 编辑了/etc/ansible/hosts并添加了我的从属服务器私有 IP(我的 ec2 位于同一可用区的同一子网中)，所以我使用了私有 IP
[我的]
172.31.29.197 .保存并关闭
7.在从属服务器中ssh并重复1,2,3步骤并注销
8.进入主服务器
local@host $ shh ansible@<Master Ip>
9.将公钥从主服务器复制到从属服务器
ansible@ip-172-31-17-94:~$ ssh-copy-id 172.31.29.197
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/ansible/.ssh/id_rsa.pub"
The authenticity of host '172.31.29.197 (172.31.29.197)' can't be established.
ECDSA key fingerprint is SHA256:qOW0ZktetcpTNmxRsubxn1kcr8egyNmcA5Uk9+oWc7A.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
ansible@172.31.29.197's password:
Number of key(s) added: 1
Now try logging into the machine, with: "ssh '172.31.29.197'"
and check to make sure that only the key(s) you wanted were added
ansible@ip-172-31-17-94:~$ ssh 172.31.29.197
Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-1013-aws x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
Get cloud support with Ubuntu Advantage Cloud Guest:
http://www.ubuntu.com/business/services/cloud
14 packages can be updated.
12 updates are security updates.
Last login: Sat Apr 22 06:27:15 2017 from 42.109.141.238
ansible@ip-172-31-29-197:~$ logout
Connection to 172.31.29.197 closed.
并成功配置了Mater到Slave的无密码ssh连接
在那之前，我没有遇到任何问题。 当我发出命令时Ansible -m ping all我收到错误
172.31.29.197 | FAILED! => {
"changed": false,
"failed": true,
"module_stderr": "Shared connection to 172.31.29.197 closed.rn",
"module_stdout": "/bin/sh: 1: /usr/bin/python: not foundrn",
"msg": "MODULE FAILURE",
"rc": 0
}
后来当我谷歌搜索时，我得到了一些块，我按照解决方案的步骤列出。 解决方案是我在从属服务器中重复上述列表中的步骤5。从主服务器发出ansible -m ping时，我得到了成功消息
我的问题是如何在从站中安装无代理的，无代理的主要功能！
如果我错过了任何一步，请帮助我
您需要在 172.31.29.197 上安装 Python 2。
或者(在不太可能的情况下)如果它安装在与/usr/bin/python不同的路径中，则需要将指向正确可执行文件的参数添加到库存文件中ansible_python_interpreter。