Python/Django 服务器升级脚本

from fabric.api import *
from fabric.contrib.files import exists
from fabric.contrib.console import confirm

# 你的服务器IP地址
server_ip = '192.168.1.100'

# 你的服务器用户名
server_user = 'root'

# 你的服务器密码
server_password = 'password'

# 连接到服务器
env.user = server_user
env.password = server_password
env.hosts = [server_ip]

# 远程提取新代码
def fetch_code():
    run('git fetch')

# 验证代码下载
def verify_code():
    local_hash = run('git rev-parse HEAD')
    remote_hash = run('git rev-parse origin/master')
    if local_hash != remote_hash:
        abort('Code download failed!')

# 关闭服务器
def shutdown_server():
    run('service nginx stop')
    run('service gunicorn stop')

# 备份数据库
def backup_database():
    run('pg_dump -U postgres -d my_database > /tmp/database.dump')

# 备份代码目录
def backup_code():
    run('tar -czvf /tmp/code.tar.gz /var/www/my_project')

# 应用新的代码更新
def apply_code_updates():
    run('git pull origin master')

# 验证代码更新
def verify_code_update():
    local_hash = run('git rev-parse HEAD')
    remote_hash = run('git rev-parse origin/master')
    if local_hash != remote_hash:
        abort('Code update failed!')

# 应用数据库更新
def apply_database_updates():
    run('psql -U postgres -d my_database < /tmp/database.dump')

# 运行测试
def run_tests():
    run('python manage.py test')

# 启动服务器
def startup_server():
    run('service nginx start')
    run('service gunicorn start')

# 验证服务器更新
def verify_server_update():
    if not exists('/var/www/my_project/README.md'):
        abort('Server update failed!')

# 执行升级脚本
def upgrade_server():
    if confirm('Are you sure you want to upgrade the server?'):
        fetch_code()
        verify_code()
        shutdown_server()
        backup_database()
        backup_code()
        apply_code_updates()
        verify_code_update()
        apply_database_updates()
        run_tests()
        startup_server()
        verify_server_update()
    else:
        print('Upgrade aborted.')

# 主函数
if __name__ == '__main__':
    upgrade_server()