Ansible 錯誤：“此模塊需要 rpm 的 Python 2 綁定”

Question

我正在嘗試 pip 使用以下任務在我的 python3 環境中安裝需求文件

pip:
  python3: yes
  requirements: ./requirements/my_requirements.txt
  extra_args: -i http://mypypi/windows/simple

我檢查了 ansible 在 controller 節點（RH7）上運行的版本，它是 3.6.8

ansible-playbook 2.9.9
  config file = None
  configured module search path = ['/home/{hidden}/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.6/site-packages/ansible
  executable location = /usr/local/bin/ansible-playbook
  python version = 3.6.8 (default, Jun 11 2019, 15:15:01) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
No config file found; using defaults

但是，我收到以下錯誤：

fatal: [default]: FAILED! => {"changed": false, "msg": "The Python 2 bindings for rpm are needed for this module. If you require Python 3 support use the `dnf` Ansible module
instead.. The Python 2 yum module is needed for this module. If you require Python 3 support use the `dnf` Ansible module instead."}

我的 controller 節點正在運行 RH7。 目標是 centos7（由 vagrantfiles 提供）

現在有人知道如何解決這個問題嗎？

Answer 1

我在使用 yum 的“Amazon Linux 2”發行版中遇到了類似的問題，但在撰寫本文時不支持 dnf。

正如上面評論中提到的，我的問題出在 ansible 托管節點（運行 Amazon Linux 2 的 AWS EC2 實例）而不是 controller。

通過強制使用 python2 解決它，在 ansible 清單文件中為這組主機添加ansible_python_interpreter=/usr/bin/python2 ，如以下代碼段所示：

[amz_linux]
server2 ansible_host=ec2-xx-yy-zz-pp.eu-west-1.compute.amazonaws.com


[amz_linux:vars]
ansible_user=ec2-user
ansible_python_interpreter=/usr/bin/python2

使用改編自Redhat quick guide的這本劇本進行了嘗試。

---
- hosts: amz_linux
  become: yes
  tasks:
   - name: install Apache server
     yum:
       name: httpd
       state: latest

   - name: enable and start Apache server
     service:
       name: httpd
       enabled: yes
       state: started

   - name: create web admin group
     group:
       name: web
       state: present

   - name: create web admin user
     user:
       name: webadm
       comment: "Web Admin"
       groups: web
       append: yes

   - name: set content directory group/permissions 
     file:
       path: /var/www/html
       owner: root
       group: web
       state: directory
       mode: u=rwx,g=rwx,o=rx,g+s

   - name: create default page content
     copy:
       content: "Welcome to {{ ansible_fqdn}} on {{ ansible_default_ipv4.address }}"
       dest: /var/www/html/index.html
       owner: webadm
       group: web
       mode: u=rw,g=rw,o=r

實際 ansible-playbook 運行（使用 ssh-add 將實例私鑰添加到 ssh 代理后。）

$ ansible-playbook -i ansible/hosts ansible/apache_amz_linux.yaml 

PLAY [amz_linux] **********************************************************************************************************

TASK [Gathering Facts] ****************************************************************************************************
The authenticity of host 'ec2-xxxxxxxxxxx.eu-west-1.compute.amazonaws.com (xxxxxxxxxxx)' can't be established.
ECDSA key fingerprint is SHA256:klksjdflskdjflskdfjsldkfjslkdjflskdjf/sdkfj.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
ok: [server2]

TASK [install Apache server] **********************************************************************************************
changed: [server2]

TASK [enable and start Apache server] *************************************************************************************
changed: [server2]

TASK [create web admin group] *********************************************************************************************
changed: [server2]

TASK [create web admin user] **********************************************************************************************
changed: [server2]

TASK [set content directory group/permissions] ****************************************************************************
changed: [server2]

TASK [create default page content] ****************************************************************************************
changed: [server2]

PLAY RECAP ****************************************************************************************************************
server2                    : ok=7    changed=6    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0 

Answer 2

如果您的ansible.cfg文件的inventory條目設置為不存在的文件，則此錯誤消息可能會顯示。

Answer 3

調整

ansible-playbook

至

ansible-playbook -e ansible_python_interpreter=/usr/bin/python2