带有角色的Ansible playbook语法错误

Question

下面是我的playbook目录结构。

/home/ansible/playbooks/
├── first.yml --> simple playbook with no roles works fine.
├── playbook.yml  --> main playbook with roles
└── roles
    └── webservers
        ├── default
        │   └── main.yml
        ├── handler
        │   └── main.yml
        ├── tasks
        │   └── main.yml
        └── vars
            └── main.yml

--- #playbook with roles

- hosts: webserver
  user: ansible
  become: yes
  become_method: sudo
  connection: ssh
  gather_facts: yes
  roles:
    - webservers

- name: Install httpd on redhat
  yum:
    - pkg: httpd
      state: latest
  notify: installed_httpd
  when: ansible_os_family == 'RedHat'

- name: Install apache2 on debian
  apt:
    - pkg: apache2
      state: latest
  notify: installed_apache
  when: ansible_os_family == 'Debian'

- name: installed_httpd
  service:
  - name: httpd
    state: restarted

- name: installed_apache
  service:
  - name: apache2
    state: restarted

ERROR! unexpected parameter type in action: <class 'ansible.parsing.yaml.objects.AnsibleSequence'>

The error appears to have been in '/home/ansible/playbooks/roles/webservers/tasks/main.yml': line 1, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:


- name: Install httpd on redhat
  ^ here

Ansible版本:2.7.2 python2版本:2.7.5 python3版本:3.7.1

Answer 1

模块属性的声明中存在语法错误。而不是

- name: Install httpd on redhat
  yum:
    - pkg: httpd

正确的语法是

- name: Install httpd on redhat
  yum:
    pkg: httpd