1. fabric简介
fabric 是python 的一个第三方库,同时它也是一个命令行工具。它提供了丰富的同 SSH 交互的接口,可以用来在本地或远程机器上自动化、流水化地执行 shell 命令。使用 fabric 提供的命令行工具,可以很方便地执行应用部署和系统管理等操作。因此它非常适合用来做应用的远程部署及系统维护。
2. 安装及使用
安装命令:pip install fabric
使用参考官网: fabric英文官网 ; fabric中文官网
3. 构建脚本
import datetime
from fabric import task@task
def startBuild(c, env="dev", force="0"):"""构建项目自动部署:param c: 上下文content:param env: 环境变量,开发环境or生产环境:param force: 强制构建,"1" 强制构建"""current_day = datetime.datetime.now().strftime("%Y%m%d")if env == "dev":code_branch = "develop"to_virtual_env_cmd = "workon user_predict"else:code_branch = "master"to_virtual_env_cmd = "source /export/venvs/user_predict/bin/activate"logger.info(">>>>>>>>>> 开始备份代码 <<<<<<<<<<")with c.cd("/export/services/"):c.run(f"zip -q -r /tmp/predict_bak/predict_code/user_predict_{current_day}.zip user_predict")c.run(f"cp -ra user_predict user_predict_old_{current_day}")logger.info(">>>>>>>>>> 开始准备从远程拉取代码 <<<<<<<<<<")with c.cd("/export/services/user_predict/"):c.run("git remote -v update")c.run(f"git checkout {code_branch}")local_commit_id = c.run("git rev-parse @{0}").stdout.strip()remote_commit_id = c.run("git rev-parse @{u}").stdout.strip()if local_commit_id == remote_commit_id and force == "0":logger.warning(f">>>>>>>>>> 远程{code_branch}分支最近未提交代码,本次不用构建 <<<<<<<<<<")returnc.run("git pull")with c.prefix("source ~/.bashrc"), c.prefix(to_virtual_env_cmd):try:logging.info(">>>>>>>>>> 前端开始打包并收集静态文件 <<<<<<<<<<")c.run(f"cd /export/service/user_predict/frontend/; npm run build")c.run(f"cd /export/service/user_predict/; python manage.py collectstatic --noinput")except Exception as e:logger.error(f">>>>>>>>>> 收集静态文件失败,详细报错为{e} <<<<<<<<<<")returntry:logging.info(">>>>>>>>>> 重启uwsgi拉起的pid进程文件 <<<<<<<<<<")c.run("cd /export/services/user_predict/; export DJANGO_SETTINGS_MODULE=predict.settings; uwsgi --reload /export/services/user_predict/predict.pid")logging.info(">>>>>>>>>> 重启被supervisor监护的进程 <<<<<<<<<<")c.run("supervisorctl status | grep 'user_predict_' | awk '{print $1}' | xargs supervisorctl restart")except Exception as e:logger.error(f">>>>>>>>>> uwsgi或supervisor重启失败,详细报错为{e} <<<<<<<<<<")returnlogger.info(">>>>>>>>>> 项目自动部署成功 <<<<<<<<<<")