无法使用Ansible Authorized_key模块将公钥添加到目标主机

问题描述

1. 我具有对ServerA（单个服务器）[IP：142.5.5.55]的完全访问权限，我在其中拥有我的公共密钥/app/serverA/mw.pub。该服务器可以从我运行自动化的地方访问。

2. 我通过ansible ServerA与ssh到3台服务器[IP：11.1.1.220、11.1.1.221、11.1.1.222]进行ssh无密码连接，我们将这3台服务器称为jump_nodes

3. 最后，我有一个称为目标主机的主机[IP：192.0.0.200、192.0.0.201、192.0.0.202]，我们将其命名为dest_nodes，我们希望将其插入公共密钥mw.pub。只有jump_nodes可以连接到dest_nodes。

因此：

ServerA(ansible) ---------------------> jump_nodes --------------------> dest_nodes 
                  copy to ~/mw.pub               inject ~/mw.pub

我可以使用以下剧本将公钥mw.pub复制到〜/ mw.pub下的所有jump_nodes。

除了以下几点以外，所有的好处就是失败了：

我现在希望将~/mw.pub从跳转服务器注入到目标主机，即曾经连接的dest_nodes。

我的剧本：

---

- name: "Play 1"
  hosts: localhost
  gather_facts: false
  tags: always
  tasks:
    - name: Add host
      debug:
        msg: " hello "
    - set_fact:
        jump_server_list: "{{ JUMP_SERVER | trim }}"
    - set_fact:
        target_server_list: "{{ TARGET_SERVER | trim }}"

    - add_host:
        hostname: "{{ item }}"
        groups: jump_nodes
      with_items: "{{ jump_server_list.split('\n') }}"

    - add_host:
        hostname: "{{ item }}"
        groups: dest_nodes
      with_items: "{{ target_server_list.split('\n') }}"

- name: "Play 2"
  hosts: dest_nodes
  user: root
  ignore_unreachable: yes
  vars:
    ansible_ssh_extra_args: -o StrictHostKeyChecking=no
    ansible_ssh_private_key_file: /app/id_rsa

  gather_facts: true

  tasks:
    - name: Copy ssh public key to a file on jump servers
      raw: "echo {{ TARGET_KEY }}>~/mw.pub"
      run_once: True
      delegate_to: "{{ item }}"
      with_items: "{{ groups['jump_nodes'] }}"

    - name: Set authorized key taken from file
      ignore_errors: yes
      authorized_key:
        user: "{{ TARGET_USER }}"
        state: present
        key: "{{ lookup('file','~/mw.pub') }}"
      register: keystatus
      delegate_to: "{{ item }}"
      with_items: "{{ groups['jump_nodes'] }}"

    - debug:
        msg: "CHECK STATUS {{ keystatus }}"
      ignore_errors: yes

输出：

TASK [Copy ssh public key to a file on jump servers] *******************************************************************************************************************
task path: /app/injectkeys/injectsshkeys.yml:40
<11.1.1.220> ESTABLISH SSH CONNECTION FOR USER: root
<11.1.1.220> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o 'IdentityFile="/app/id_rsa"' -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="root"' -o ConnectTimeout=10 -o StrictHostKeyChecking=no -o ControlPath=/home/axmwapp/.ansible/cp/42c5d2e05f -tt 11.1.1.220 'echo ssh-rsa PPPPB3NzaC1yc2EPPPPDAQABAAABAQDQGeUOA0vJK1AXSp3UKK1KF4VnFzmcrCoM4Ha7jx49DGPkGuNgS4ZKYYGiAl7FDhwtysvUF6JSl1l3Gxrki3nLDmGYUHbzNCU0qghOw85gbr++W+b+VfEZEnzTE8VPjAgR/JvQItLd2F8PGGlZBwDUXOIvuw8Acqft0nErDkPkKApJcn302qHtOc9R1mFff/GuD6WL6gjPF0gZsEkxHq+FObdsuUzndon0SR3SPeoF/oKA2CVy15+ea6wZnAYqCCppbdgZYR9uSZlMnvwMGT2g3Au+kL2dls3aRYQm6ZH0IrOpfn8M+BaPCcpWppE64XSPZlkU+3mIe2riG4IyIE75 [e-mail]>~/mw.pub'
<11.1.1.220> (0,'','Shared connection to 11.1.1.220 closed.\r\n')
changed: [192.0.0.200 -> 11.1.1.220] => (item=11.1.1.220) => {
    "ansible_loop_var": "item","changed": true,"item": "11.1.1.220","rc": 0,"stderr": "Shared connection to 11.1.1.220 closed.\r\n","stderr_lines": [
        "Shared connection to 11.1.1.220 closed."
    ],"stdout": "","stdout_lines": []
}

TASK [Set authorized key taken from file] ******************************************************************************************************************************
task path: /app/injectkeys/injectsshkeys.yml:46
[WARNING]: Unable to find '~/mw.pub' in expected paths (use -vvvvv to see paths)

fatal: [192.0.0.200]: FAILED! => {
    "msg": "An unhandled exception occurred while running the lookup plugin 'file'. Error was a <class 'ansible.errors.AnsibleError'>,original message: could not locate file in lookup: ~/mw.pub"
}
...ignoring

TASK [debug] ***********************************************************************************************************************************************************
task path: /app/injectkeys/injectsshkeys.yml:57
ok: [192.0.0.200] => {
    "msg": "CHECK STATUS {'msg': u\"An unhandled exception occurred while running the lookup plugin 'file'. Error was a <class 'ansible.errors.AnsibleError'>,original message: could not locate file in lookup: ~/mw.pub\",'failed': True}"
}
META: ran handlers
META: ran handlers

下面是我运行剧本的方式

ansible-playbook /app/injectkeys/injectsshkeys.yml -f 5 -e JUMP_SERVER='11.1.1.220' -e TARGET_SERVER='192.0.0.200' -e TARGET_USER='root' -e TARGET_KEY="'ssh-rsa PPPPB3NzaC1yc2EPPPPDAQABAAABAQDQGeUOA0vJK1AXSp3UKK1KF4VnFzmcrCoM4Ha7jx49DGPkGuNgS4ZKYYGiAl7FDhwtysvUF6JSl1l3Gxrki3nLDmGYUHbzNCU0qghOw85gbr++W+b+VfEZEnzTE8VPjAgR/JvQItLd2F8PGGlZBwDUXOIvuw8Acqft0nErDkPkKApJcn302qHtOc9R1mFff/GuD6WL6gjPF0gZsEkxHq+FObdsuUzndon0SR3SPeoF/oKA2CVy15+ea6wZnAYqCCppbdgZYR9uSZlMnvwMGT2g3Au+kL2dls3aRYQm6ZH0IrOpfn8M+BaPCcpWppE64XSPZlkU+3mIe2riG4IyIE75 [e-mail]'" -vvv

从输出中可以看到，尽管有~/mw.pub，它仍在dest_nodes上寻找delegate_to: jump_nodes，即当应在11.1上查找时，它在dest_nodes 192.0.0.200上寻找~/mw.pub。 .1.220，然后将其注入192.0.0.200。

请问我该如何解决？

解决方法

摘自lookup plugins上的文档

就像所有模板一样，这些插件是在Ansible控制机器上而不是在目标/远程上评估的。

因此它实际上不在目标主机上，而是在控制器上。

如果需要从目标中获取文件，则必须在lookup本地副本之前使用fetch或将内容slurp放入变量中。