系统d:“环境”指令设置路径

What is the right way to set PATH variable in a systemd unit file? After seeing a few examples, I tried to use the format below, but the variable doesn't seem to expand.

在systemd单元文件中设置PATH变量的正确方法是什么?在看到一些示例之后，我尝试使用下面的格式，但是这个变量似乎没有展开。

Environment="PATH=/local/bin:$PATH"

I am trying this on CoreOS with the below version of systemd.

我正在CoreOS上试用systemd的以下版本。

systemd 225
-PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT -GNUTLS -ACL +XZ -LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD -IDN

2 个解决方案

#1

You can't use EnvVars in Environment directives. The whole Environment= will be ignored. If you use EnvironmentFile=, then the specified file will be loaded without substitution. So PATH=/local/bin:$PATH would be exactly that, and this is probably not what you want.

在环境指令中不能使用envars。整个环境=将被忽略。如果您使用环境文件=，那么指定的文件将在没有替换的情况下被加载。PATH=/local/bin:$PATH就是这个，这可能不是你想要的。

Under CentOS7 the following works.

在CentOS7下面的作品。

# /etc/systemd/system/nagios.service.d/env.conf
[Service]
Environment="PATH=/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"

> sudo systemctl daemon-reload
> sudo systemctl restart nagios
> sudo cat /proc/28647/environ
...
PATH=/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
...

#2

You can use the EnvironmentFile= directive in the units section to set environment variables.

您可以在units部分中使用environmental file = directive来设置环境变量。

Just put the variables as key=value pairs and it will work.

只需将变量作为键=值对，就可以了。

The runtime just 'source's whatever file you specify.

运行时就是你指定的任何文件的源文件。

You can create the file using the write_files directive.

您可以使用write_files指令创建文件。

#1