示例1：创建用户

---
- name: create user
  hosts: all
  gather_facts: false
  tasks:
    - name: create {{ item }}
      user:
        name: "{{ item }}"
        groups: root
        password: "$6$Okahzlzi8PqXN30d$Zd.jyW0A9jO3k09OMpEujhSn5EMpjHECfOIQGC2cS6HQBfAhncrVL/iaUmkuCi4LFWqr7KARyoVMJzKtBrBoZ/"  #密码由openssl passwd -6 生成
      loop:
      - alex
      - jack

示例2：复制文件

---
- name: copy file
  hosts: all
  tasks:
    - name: copy ansible.cfg file
      copy:
        src: /etc/ansible/ansible.cfg
        dest: /mnt/
        mode: '755'

示例3：编辑playbook，使得浏览器中输入相应域名得到对应结果

create web vhost
www.westos.com 80 ------ > /var/www/html ------> www.westos.com

linux.westos.com 80 ------> /var/www/virtual/westos.com/linux ----->linux.westos.com

vim webs.yml

---
webs:
  - webname: www.westos.com
    doc: /var/www/html
  - webname: linux.westos.com
    doc: /var/www/virtual/westos.com/linux

vim http.yml

---
- name: httpd
  hosts: 172.25.73.10
  vars_files: ./webs.yml
  tasks:
    - name: dnf install httpd
      dnf:
        name: httpd
        state: present
    - name: mkdir
      file:
        path: "{{item.doc}}"
        state: directory
      loop:
        "{{webs}}"

    - name: touch index.html
      copy:
        dest: "{{item.doc}}/index.html"
        content: "{{item.webname}}"
      loop:
        "{{webs}}"
    - name: clear config
      file:
        name: /etc/httpd/conf.d/vhosts.conf
        state: absent
    - name: configure vhost
      lineinfile:
        path: /etc/httpd/conf.d/vhosts.conf
        create: yes
        line: |+
          <VirtualHost *:80>
            DocumentRoot "{{item.doc}}"
            ServerName "{{item.webname}}"
          </VirtualHost>
      loop:
        "{{webs}}"
    - lineinfile:
        path: /etc/httpd/conf.d/vhosts.conf
        line: |+
          <VirtualHost _default_:80>
            DocumentRoot /var/www/html
          </VirtualHost>
        insertbefore: BOF
    - name: start httpd
      service:
        name: httpd
        state: restarted
        enabled: yes
    - name: firewalld
      firewalld:
        service: http
        permanent: yes
        state: enabled
        immediate: yes