利用Django和Ansible实现自动化部署

以下是一个简化的例子，展示了如何使用Ansible playbook来自动化部署一个使用Django框架的Web应用：

---
- hosts: servers
  become: yes
  gather_facts: no
  tasks:
    - name: Install dependencies
      apt:
        update_cache: yes
        pkg:
          - name: python3
            state: present
          - name: python3-pip
            state: present
          - name: git
            state: present
 
    - name: Install Django and other required packages
      pip:
        name: django
        extra_args: --upgrade
 
    - name: Clone the Django project repository
      git:
        repo: https://github.com/username/project.git
        dest: /opt/project
        version: master
 
    - name: Collect static files
      shell: "source /opt/venv/bin/activate && cd /opt/project && python3 manage.py collectstatic --no-input"
      args:
        executable: /bin/bash
 
    - name: Apply database migrations
      shell: "source /opt/venv/bin/activate && cd /opt/project && python3 manage.py migrate"
      args:
        executable: /bin/bash
 
    - name: Create a superuser
      shell: "source /opt/venv/bin/activate && cd /opt/project && python3 manage.py createsuperuser"
      args:
        executable: /bin/bash
 
    - name: Start the Gunicorn server
      shell: "source /opt/venv/bin/activate && cd /opt/project && gunicorn project.wsgi:application -b 0.0.0.0:8000"
      args:
        executable: /bin/bash

这个Ansible playbook包含了安装依赖、克隆代码仓库、收集静态文件、迁移数据库、创建管理员用户、启动Gunicorn服务器的步骤。这样的自动化流程可以显著减少部署时间和人为错误，并提高系统的一致性。