Fabric + DigitalOcean：不可见环境变量？ [英] Fabric + DigitalOcean: unvisible ENVIRONMENT VARIABLE?

问题描述

我在DigitalOcean上有服务器，我使用fabric来部署我的代码。而我的代码依赖于环境变量（烧瓶配置）。我今天遇到一个奇怪的问题：在服务器上的 /root/.bashrc 中我添加了下一行

  export CONFIG = / path / to / conf 
  

当我在远程控制台上执行

 >>> echo $ CONFIG 
>>> / path / to / conf＃result，因为它应该是
  

但是在 fabfile 我有一个函数

  def show（）：
 run（echo $ CONFIG）
  

它打印一个空字符串。为什么？
提前感谢

解决方案

不应该是这样，默认情况下Fabric使用 -l <​​/ code>标志应该是使bash的行为好像已被调用为登录shell（请参阅下面的INVOCATION）。 / p>



我也无法再现您的问题：

  $ fab -H home test_bash 
 [home]执行任务'test_bash'
 [home] run：grep FOO $ HOME / .bashrc 
 [home] out：export FOO =BAR
 [home] out：
 
 [home] run：echo $ FOO 
 [home] out：BAR 
 [home] out：
  

所以我的猜测是你更改了 env.shell ，或者你'不是连接作为根用户，你正在设置这个bash导出。 （请注意，在Fabric使用中 run（）与 sudo（）不同）

I have server on DigitalOcean and I use fabric for deploying my code. And my code is dependent on environment variables (flask config). I've faced one strange trouble today: on server in /root/.bashrc I've added next line

export CONFIG=/path/to/conf

And when I executing on remote console

>>> echo $CONFIG
>>> /path/to/conf  # result, as it should be

But in fabfile I have a function

def show():
    run("echo $CONFIG")

And it prints an empty string. WHY? Thanks in advance!

解决方案

This shouldn't be the case, as by default Fabric uses the -l flag which is supposed to Make bash act as if it had been invoked as a login shell (see INVOCATION below).

I am also not able to reproduce your issue:

$ fab -H home test_bash
[home] Executing task 'test_bash'
[home] run: grep FOO $HOME/.bashrc
[home] out: export FOO="BAR"
[home] out:

[home] run: echo $FOO
[home] out: BAR
[home] out:

So my guess is that you've changed the env.shell, or that you're not connecting as the root user which is where you're setting this bash export. (Note that run() isn't the same a sudo() in Fabric usage)

这篇关于Fabric + DigitalOcean：不可见环境变量？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！