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    你的位置：在路上 > 工作和技术 > OS_Platform > CentOS > 【已解决】把Python3的Flask部署到远程CentOS7服务器

    【已解决】把Python3的Flask部署到远程CentOS7服务器

    CentOS crifan 3768浏览 0评论

    折腾：

    【已解决】把Python3的pipenv的Flask部署到CentOS服务器上

    期间，接着去把本地用supervisor+gunicorn去部署没问题的Flask代码，想办法部署到服务器上。

    其中此处是Python3的Flask，本地折腾时用的是supervisor和gunicorn。

    先去服务器上确定，当前所用的Python3的环境在哪里

    <code>[root@naturling-general-01 ~]# which python
/usr/bin/python
[root@naturling-general-01 ~]# where python
-bash: where: command not found
[root@naturling-general-01 ~]# which python3
/usr/bin/python3
[root@naturling-general-01 ~]# python --version
Python 2.7.5
[root@naturling-general-01 ~]# python3 --version
Python 3.4.5
[root@naturling-general-01 ~]#
</code>

    再去Python3中安装pipenv

    吸取之前教训，不要强制重新安装pip3了。

    先看看pip：

    <code>[root@naturling-general-01 ~]# pip
pip     pip2    pip2.7  pip3    pip3.4  
</code>

    centos 部署Python3 Flask

    先去安装Python3的pipenv

    centos python3 pipenv

    centos install pipenv python3

    使用pipenv管理你的项目-Linux运维日志

    <code>[root@naturling-general-01 ~]# pip3 install pipenv --user
Collecting pipenv
  Downloading http://mirrors.aliyun.com/pypi/packages/e5/fd/740a41c68c38262265d73191fb686f38d26c4ea1ea6080a65b2b626bedc7/pipenv-11.10.0-py3-none-any.whl (5.6MB)
    100% || 5.6MB 81.0MB/s
Requirement already satisfied: pip&gt;=9.0.1 in /usr/lib/python3.4/site-packages (from pipenv)
Collecting virtualenv-clone&gt;=0.2.5 (from pipenv)
  Downloading http://mirrors.aliyun.com/pypi/packages/6d/c2/dccb5ccf599e0c5d1eea6acbd058af7a71384f9740179db67a9182a24798/virtualenv_clone-0.3.0-py2.py3-none-any.whl
Requirement already satisfied: certifi in /usr/lib/python3.4/site-packages (from pipenv)
Requirement already satisfied: setuptools&gt;=36.2.1 in /usr/lib/python3.4/site-packages (from pipenv)
Requirement already satisfied: virtualenv in /usr/lib/python3.4/site-packages (from pipenv)
Installing collected packages: virtualenv-clone, pipenv
Successfully installed pipenv-11.10.0 virtualenv-clone-0.3.0
</code>

    但是安装后，没找到pipenv在哪

    <code>[root@naturling-general-01 ~]# ll /usr/lib/python3.4/site-packages/
total 280
drwxr-xr-x  3 root root  4096 Mar 23 14:20 certifi
drwxr-xr-x  2 root root  4096 Mar 23 14:20 certifi-2018.1.18.dist-info
drwxr-xr-x  4 root root  4096 Mar 23 14:20 chardet
drwxr-xr-x  2 root root  4096 Mar 23 14:20 chardet-3.0.4.dist-info
drwxr-xr-x  3 root root  4096 Mar 23 14:20 cssselect
drwxr-xr-x  2 root root  4096 Mar 23 14:20 cssselect-1.0.3.dist-info
-rw-r--r--  1 root root   195 Mar 23 14:21 easy-install.pth
-rw-r--r--  1 root root   126 Mar 23 14:20 easy_install.py
drwxr-xr-x  4 root root  4096 Feb  4 23:09 et_xmlfile
drwxr-xr-x  2 root root  4096 Feb  4 23:09 et_xmlfile-1.0.1-py3.4.egg-info
drwxr-xr-x  3 root root  4096 Mar 23 14:20 fire
drwxr-xr-x  2 root root  4096 Mar 23 14:20 fire-0.1.3-py3.4.egg-info
drwxr-xr-x  3 root root  4096 Mar 23 14:20 idna
drwxr-xr-x  2 root root  4096 Mar 23 14:20 idna-2.6.dist-info
drwxr-xr-x  2 root root  4096 Feb  4 23:09 jdcal-1.3-py3.4.egg-info
-rw-r--r--  1 root root 12556 Sep 19  2016 jdcal.py
drwxr-xr-x 21 root root  4096 Feb  4 23:09 openpyxl
drwxr-xr-x  2 root root  4096 Feb  4 23:09 openpyxl-2.5.0-py3.4.egg-info
drwxr-xr-x 11 root root  4096 Mar 23 14:21 pip
drwxr-xr-x  2 root root  4096 Mar 23 14:21 pip-9.0.3.dist-info
drwxr-xr-x  5 root root  4096 Mar 23 14:21 pkg_resources
drwxr-xr-x  2 root root  4096 Mar 23 14:21 __pycache__
drwxr-xr-x  3 root root  4096 Mar 23 14:20 pyquery
drwxr-xr-x  2 root root  4096 Mar 23 14:20 pyquery-1.4.0.dist-info
drwxr-xr-x  3 root root  4096 Mar 23 14:20 requests
drwxr-xr-x  2 root root  4096 Mar 23 14:20 requests-2.18.4.dist-info
drwxr-xr-x  6 root root  4096 Mar 23 14:21 setuptools
drwxr-xr-x  2 root root  4096 Mar 23 14:21 setuptools-39.0.1.dist-info
-rw-r--r--  1 root root    28 Dec  7 21:12 setuptools.pth
drwxr-xr-x  2 root root  4096 Mar 23 14:20 six-1.11.0.dist-info
-rw-r--r--  1 root root 30888 Mar 23 14:20 six.py
drwxr-xr-x  6 root root  4096 Mar 23 14:20 urllib3
drwxr-xr-x  2 root root  4096 Mar 23 14:20 urllib3-1.22.dist-info
drwxr-xr-x  2 root root  4096 Dec  7 21:14 virtualenv-15.1.0.dist-info
-rw-r--r--  1 root root 99021 Dec  7 21:14 virtualenv.py
drwxr-xr-x  3 root root  4096 Dec  7 21:14 virtualenv_support
</code>

    Pipenv – The Officially Recommended Python Packaging Tool – OSTechNix

    然后找到了：

    <code>[root@naturling-general-01 ~]# python3 -m site --user-base
/root/.local
[root@naturling-general-01 ~]# ll /root/.local/
bin/ lib/
[root@naturling-general-01 ~]# ll /root/.local/bin/pipenv
pipenv           pipenv-resolver  
[root@naturling-general-01 ~]# ll /root/.local/bin/
total 16
-rwxr-xr-x 1 root root 223 Apr 23 11:16 pewtwo
-rwxr-xr-x 1 root root 207 Apr 23 11:16 pipenv
-rwxr-xr-x 1 root root 218 Apr 23 11:16 pipenv-resolver
-rwxr-xr-x 1 root root 218 Apr 23 11:16 virtualenv-clone
[root@naturling-general-01 ~]# /root/.local/bin/pipenv --version
pipenv, version 11.10.0
</code>

    然后看到是有bash_profile的：

    <code>[root@naturling-general-01 ~]# ll ~/.
./                .bash_logout      .cache/           .dbshell          .mysql_history    .pydistutils.cfg  .tcshrc           .tmux.conf.local  
../               .bash_profile     .config/          .local/           .pip/             .python_history   .tmux/            .viminfo          
.bash_history     .bashrc           .cshrc            .mongorc.js       .pki/             .ssh/             .tmux.conf        .vimrc            
[root@naturling-general-01 ~]# ll ~/.bash*
-rw-------  1 root root 19727 Apr 23 10:37 /root/.bash_history
-rw-r--r--. 1 root root    18 Dec 29  2013 /root/.bash_logout
-rw-r--r--. 1 root root   176 Dec 29  2013 /root/.bash_profile
-rw-r--r--. 1 root root   176 Dec 29  2013 /root/.bashrc
[root@naturling-general-01 ~]# cat ~/.bashrc
# .bashrc

# User specific aliases and functions

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

# Source global definitions
if [ -f /etc/bashrc ]; then
        . /etc/bashrc
fi
[root@naturling-general-01 ~]# cat ~/.bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
</code>

    然后去加到.bash_profile中并source一下

    <code>vi ~/.bash_profile
[root@naturling-general-01 ~]# cat ~/.bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

#export PATH
export PATH="$HOME/.local/bin:$PATH"
</code>

    再去source一下，就可以找到了：

    <code>[root@naturling-general-01 ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
[root@naturling-general-01 ~]# source ~/.bash_profile
[root@naturling-general-01 ~]# echo $PATH             
/root/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/root/bin
[root@naturling-general-01 ~]# pipenv --version
whipipenv, version 11.10.0
[root@naturling-general-01 ~]# which pipenv
/root/.local/bin/pipenv
</code>

    然后去：

    【基本解决】如何利用已有Pipfile和Pipfile.lock创建pipenv的虚拟环境

    但是接着又出现：

    【基本解决】pipenv用已有pipfile去创建环境失败：Warning Python 3.6 was not found on your system

    然后还要继续安装只支持Python2的supervisor

    不过在此之前，先去用gunicorn去运行app，看看是否正常能访问服务器端的Rest API接口

    记得要去阿里云ECS的安全组中增加端口运行访问

    另外在运行app之前，先要上传代码。

    此处考虑用之前用过的PyCharm同步代码的功能：

    【已解决】用PyCharm同步代码到服务器以实现代码部署

    然后服务器端运行gunicorn试试，结果可以运行，但是失败：

    【已解决】gunicorn运行Flask的app但访问出错：org.apache.http.conn.HttpHostConnectException Connect to failed Operation timed out

    然后再去用supervisor去管理：

    【已解决】CentOS中用supervisor去管理gunicorn的Flask的app

    然后再去优化Flask：

    【已解决】Flask中增加不同环境的app的config配置

    但是折腾配置期间，本地再去用supervisorctl却出错：

    【已解决】supervisorctl status all出错：http://localhost:9001 refused connection

    然后服务器端的Flask的app终于可以正常工作了：

    先去访问qa接口，可以正常返回内容了：

    然后去浏览器打开地址：

    http://x.x.x.x:port/files/5ad438d2a4bc71fa65bac96c/Green%20Eggs%20and%20Ham.mp3

    最后可以下载到对应文件：

    相关的一些log是：

    <code>[root@naturling-general-01 logs]# cat gunicorn_access.log
[24/Apr/2018:17:16:05 +0800] &lt;1395&gt; 112.4.64.141 "GET /qa?q=play+a+green+song HTTP/1.1" 500 0.008734 - -" "-"
[24/Apr/2018:17:20:17 +0800] &lt;1462&gt; 112.4.64.141 "GET /qa?q=play+a+green+song HTTP/1.1" 200 0.026611 372 -" "Apache-HttpClient/4.5.2 (Java/1.8.0_152-release)"
[24/Apr/2018:17:20:43 +0800] &lt;1462&gt; 112.4.64.141 "GET /files/5ad438d2a4bc71fa65bac96c/Green%20Eggs%20and%20Ham.mp3 HTTP/1.1" 200 15.673270 2401743 -" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1 Safari/605.1.15"
[root@naturling-general-01 logs]# pwd
/root/naturling_20180101/web/server/robotDemo/logs
[root@naturling-general-01 logs]# cat gunicorn_error.log
[2018-04-24 17:12:32 +0800] [1365] [INFO] Starting gunicorn 19.7.1
[2018-04-24 17:12:32 +0800] [1365] [INFO] Listening at: http://0.0.0.0:32851 (1365)
[2018-04-24 17:12:32 +0800] [1365] [INFO] Using worker: threads
[2018-04-24 17:12:32 +0800] [1368] [INFO] Booting worker with pid: 1368
。。。
[2018-04-24 17:12:33 +0800] [1395] [INFO] Booting worker with pid: 1395
[2018-04-24 17:16:05 +0800] [1395] [ERROR] Error handling request /qa?q=play+a+green+song
...
[2018-04-24 17:16:23 +0800] [1391] [INFO] Worker reloading: /root/naturling_20180101/web/server/robotDemo/app.py modified
[2018-04-24 17:16:23 +0800] [1395] [INFO] Worker reloading: /root/naturling_20180101/web/server/robotDemo/app.py modified
[2018-04-24 17:16:23 +0800] [1395] [INFO] Worker exiting (pid: 1395)
[2018-04-24 17:16:23 +0800] [1385] [INFO] Worker exiting (pid: 1385)
[2018-04-24 17:16:23 +0800] [1391] [INFO] Worker exiting (pid: 1391)
[2018-04-24 17:16:23 +0800] [1383] [INFO] Worker exiting (pid: 1383)
[2018-04-24 17:16:23 +0800] [1370] [INFO] Worker exiting (pid: 1370)
[2018-04-24 17:16:23 +0800] [1373] [INFO] Worker exiting (pid: 1373)
[2018-04-24 17:16:23 +0800] [1380] [INFO] Worker exiting (pid: 1380)
[2018-04-24 17:16:23 +0800] [1375] [INFO] Worker exiting (pid: 1375)
[2018-04-24 17:16:23 +0800] [1437] [INFO] Booting worker with pid: 1437
[2018-04-24 17:16:23 +0800] [1438] [INFO] Booting worker with pid: 1438
[2018-04-24 17:16:23 +0800] [1441] [INFO] Booting worker with pid: 1441
[2018-04-24 17:16:23 +0800] [1368] [INFO] Worker reloading: /root/naturling_20180101/web/server/robotDemo/app.py modified
[2018-04-24 17:16:23 +0800] [1450] [INFO] Booting worker with pid: 1450
。。。
[root@naturling-general-01 logs]# cat RobotQA.log
...
[2018-04-24 17:20:17,077 INFO app.py:101 get] parser=&lt;flask_restful.reqparse.RequestParser object at 0x7f1d628cd320&gt;
[2018-04-24 17:20:17,078 INFO app.py:104 get] parsedArgs={'q': 'play a green song'}
[2018-04-24 17:20:17,078 INFO app.py:110 get] q=play a green song
[2018-04-24 17:20:17,079 INFO app.py:119 get] foundSongName=&lt;_sre.SRE_Match object; span=(0, 17), match='play a green song'&gt;
[2018-04-24 17:20:17,079 INFO app.py:125 get] songName=green
[2018-04-24 17:20:17,079 INFO app.py:147 get] filenameRegex=re.compile('green', re.IGNORECASE)
[2018-04-24 17:20:17,080 INFO app.py:153 get] findFileCursor=&lt;gridfs.grid_file.GridOutCursor object at 0x7f1d628cd588&gt;
[2018-04-24 17:20:17,096 INFO app.py:155 get] findFileCount=8
[2018-04-24 17:20:17,101 INFO app.py:163 get] [ 1] _id=5ad44050a4bc71fa65bb28a5, contentType=audio/mpeg, filename=119 Chester Greenwood's Big Idea.mp3
[2018-04-24 17:20:17,101 INFO app.py:163 get] [ 2] _id=5ad4404fa4bc71fa65bb289b, contentType=application/pdf, filename=119 Chester Greenwood's Big Idea.pdf
[2018-04-24 17:20:17,101 INFO app.py:163 get] [ 3] _id=5ad4406da4bc71fa65bb29db, contentType=audio/mpeg, filename=27 Green.mp3
[2018-04-24 17:20:17,101 INFO app.py:163 get] [ 4] _id=5ad43a6da4bc71fa65badfa5, contentType=audio/mpeg, filename=A green green garden.mp3
[2018-04-24 17:20:17,102 INFO app.py:163 get] [ 5] _id=5ad43a64a4bc71fa65badf54, contentType=application/pdf, filename=A green green garden.pdf
[2018-04-24 17:20:17,102 INFO app.py:163 get] [ 6] _id=5ad4382ca4bc71fa65babfdd, contentType=application/pdf, filename=Go Away Big Green Monster.pdf
[2018-04-24 17:20:17,102 INFO app.py:163 get] [ 7] _id=5ad4382da4bc71fa65babfed, contentType=audio/mpeg, filename=Go away big green monster.mp3
[2018-04-24 17:20:17,102 INFO app.py:163 get] [ 8] _id=5ad438d2a4bc71fa65bac96c, contentType=audio/mpeg, filename=Green Eggs and Ham.mp3
[2018-04-24 17:20:27,464 INFO app.py:186 get] fileId=5ad438d2a4bc71fa65bac96c, file_name=Green Eggs and Ham.mp3
[2018-04-24 17:20:27,465 INFO app.py:189 get] fileIdObj=5ad438d2a4bc71fa65bac96c
[2018-04-24 17:20:27,468 INFO app.py:200 get] fileObj=&lt;gridfs.grid_file.GridOut object at 0x7f1d75db1ba8&gt;, filename=Green Eggs and Ham.mp3, chunkSize=261120, length=2401743, contentType=audio/mpeg
[2018-04-24 17:20:27,468 INFO app.py:201 get] lengthInMB=2.29 MB
[2018-04-24 17:20:27,469 INFO app.py:209 get] outputFilename=Green Eggs and Ham.mp3
[root@naturling-general-01 logs]# cat supervisord-robotDemo-stdout.log
currentRootPath=/root/naturling_20180101/web/server/robotDemo
flaskHost=0.0.0.0, flaskPort=32851
。。。
currentRootPath=/root/naturling_20180101/web/server/robotDemo
flaskHost=0.0.0.0, flaskPort=32851
[root@naturling-general-01 logs]# cat supervisord-robotDemo-stderr.log
--------------------------------------------------------------------------------
DEBUG in app [/root/naturling_20180101/web/server/robotDemo/app.py:42]:
app=&lt;Flask 'app'&gt;
...
</code>

    【总结】

    此处部署supervisor+gunicorn+flask到CentOS服务器上的步骤是：

    1.先把本地的pipenv虚拟环境复制到服务器上

    2.再去利用PyCharm去把本地Flask代码同步拷贝到服务器上

    3.安装并使用gunicorn去启动Flask的app，试试是否正常

    4.安装并使用supervisor去管理gunicorn

    具体步骤，详见前面具体过程。

    转载请注明：在路上 » 【已解决】把Python3的Flask部署到远程CentOS7服务器

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