Centos 7 部署 flask
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阿里云服务器配置
系统版本号
centos 7.4IP
xx.xx.xx.xx账号
root密码
XXXXXX安全组配置端口
8888
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环境部署
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远程链接
SSH远程登录链接服务器
-ssh root@xx.xx.xx.xx
> 出现异常 Host key verification failed. 则输入以下命令
-ssh-keygen -R xx.xx.xx.xx -
环境部署
先更新下
yum update # 更新后cat /etc/redhat-release ### CentOS Linux release 7.6.1810 (Core)
安装Python3 ( 系统默认自带Python2 )
- 更新安装依赖
yum update yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel - 安装(可根据链接https://www.python.org/ftp/python/选择相应版本)
wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz tar -zxvf Python-3.6.6.tgz cd Python-3.6.6 ./configure -prefix=/usr/local/python3 make && make install - 建立链接
ln -s /usr/local/python3/bin/python3 /usr/bin/python3 #为python3创建软连接 ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3 #为pip3创建软连接
Python 虚拟环境安装部署
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pip3 install virtualenv pip3 install virtualenvwrapper
Python 虚拟环境配置
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vim ~/.bashrc进入文件，填入以下三行代码：export WORKON_HOME=$HOME/.virtualenvs export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3 source /usr/local/python3/bin/virtualenvwrapper.sh # 可用find命令找出virtualenvwrapper.sh路径 生效
source ~/.bashrc
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找出virtualenv 的路径
sudo find / -name "virtualenv" # /usr/local/python3/bin/virtualenv -
用以下命令建立软连接
ln -s /usr/local/python3/bin/virtualenv /usr/bin/virtualenv
Python 创建虚拟环境
- 创建虚拟环境：
mkvirtualenv --python=/usr/bin/python3 wpwl-env- 若提示virtualenvwrapper could not find virtualenv in your path
则检查虚拟环境配置中的软连接是否完成 - 若提示 No module named virtualenvwrapper
则检查虚拟环境配置 ~/.bashrc 中的 VIRTUALENVWRAPPER_PYTHON 配置是否完成，并执行source ~/.bashrc 使其生效 >
- 若提示virtualenvwrapper could not find virtualenv in your path
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项目部署
确定项目没有BUG，在本地电脑项目目录执行命令生成requirements.txt
pip3 freeze > requirements.txt-
在本地电脑上使用 SCP 命令将项目文件夹推送到云服务器IP的相应路径，比如我的路径为/opt/PYTHON
scp -r progectfloder root@xx.xx.xx.xx:/opt/PYTHON当然更推荐你用Git clone 来操作
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在云服务器上进入项目根目录 进入之前创建的虚拟环境
workon wpwl-envcommand: /root/.virtualenvs/wpwl-env/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-6aqu022g/mysqlclient/setup.py'"'"'; __file__='"'"'/tmp/pip-install-6aqu022g/mysqlclient/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info cwd: /tmp/pip-install-6aqu022g/mysqlclient/ Complete output (12 lines): /bin/sh: mysql_config: 未找到命令 /bin/sh: mariadb_config: 未找到命令 /bin/sh: mysql_config: 未找到命令 Traceback (most recent call last): File "<string>", line 1, in <module> File "/tmp/pip-install-6aqu022g/mysqlclient/setup.py", line 16, in <module> metadata, options = get_config() File "/tmp/pip-install-6aqu022g/mysqlclient/setup_posix.py", line 61, in get_config libs = mysql_config("libs") File "/tmp/pip-install-6aqu022g/mysqlclient/setup_posix.py", line 29, in mysql_config raise EnvironmentError("%s not found" % (_mysql_config_path,)) OSError: mysql_config not found ---------------------------------------- ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.如果报以上错误则因为依赖中有mysqlclient等数据库链接出现问题，则退出虚拟环境执行以下命令
yum install gcc mariadb-devel> -
启动flask项目
flask run若无法访问请检查服务器安全组策略及防火墙临时关闭防火墙(不建议)
systemctl stop firewalld.service设置外网访问ip为
0.0.0.0
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uwsgi 部署
- 退出虚拟环境
deactivate退出虚拟环境， - 安装uwsgi
pip3 install uwsgi
- 执行find / -name 'uwsgi'查找uwsgi安装路径
- 建立软链接
>ln -s /usr/local/python3/bin/uwsgi /usr/bin/uwsgi
- 运行项目
>uwsgi --http :8888 --wsgi-file /opt/PYTHON/WPWebManager/application.py --callable app -H /root/.virtualenvs/wpwl-env
- 退出虚拟环境
