为服务文件调用的 uwsgi 应用程序设置 oracle 路径

Question

我已经用 uwsgi 和 nginx 部署了一个 flask 应用程序

以下是uwsgi的.ini文件

[uwsgi]
;module = name of file which contains the application object in this case wsgi.py
LD_LIBRARY_PATH=/usr/lib/oracle/18.3/client64/lib
chdir=/home/ansible/apps/payment_handler
module = wsgi:application

;tell uWSGI (the service) to start in master mode and spawn 5 worker *processes* to serve requests
master = true
processes = 5

;a socket is much faster than a port, and since we will be using nginx to exppose the application this is better
socket = 0.0.0.0:8001

vaccum = true    
die-on-term = true

当我从命令行运行像这样

uwsgi --ini payment_app.ini

有效！

不过我想运行应用使用一个服务，下面是服务文件

[Unit]
Description=uWSGI instance to serve service app
After=network.target

[Service]
User=root

WorkingDirectory=/home/ansible/apps/payment_handler
Environment="PATH=/home/ansible/apps/payment_handler/env/bin"
ExecStart=/home/ansible/apps/payment_handler/env/bin/uwsgi --ini payment_app.ini

[Install]
WantedBy=multi-user.target

但是它不起作用，因为它找不到 cx_oracle 的库我在我的 bashrc 文件中设置了它

export LD_LIBRARY_PATH=/usr/lib/oracle/18.3/client64/lib

然而，由于服务文件不使用它来加载它的环境变量，所以它似乎找不到它

错误日志

Jun 17 09:58:06 mau-app-036 uwsgi: cx_Oracle.DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client library: "libclntsh.so: cannot open shared object file: No such file or directory". See https://oracle.github.io/odpi/doc/installation.html#linux for help

我试过在 .ini 文件中设置它（如上所示）

LD_LIBRARY_PATH=/usr/lib/oracle/18.3/client64/lib

我也尝试使用 os 模块

在我的 init.py 文件中设置它

os.environ['LD_LIBRARY_PATH'] = '/usr/lib/oracle/18.3/client64/lib'

都无济于事，任何帮助都会非常感谢 Centos 7 btw

Answer 1

像这样的问题是 Instant Client installation instructions 推荐运行的原因：

  sudo sh -c "echo /usr/lib/oracle/18.3/client64/lib > \
      /etc/ld.so.conf.d/oracle-instantclient.conf"
  sudo ldconfig

这样您就不必弄清楚如何以及在何处设置 LD_LIBRARY_PATH。

请注意，19.3 Instant Client RPM 软件包会自动为您运行此程序。一些背景在 Instant Client 19c Linux x64 release announcement blog.

为服务文件调用的 uwsgi 应用程序设置 oracle 路径

Set oracle path for uwsgi app called by service file

python

oracle

flask

uwsgi

systemd