openstack compute（nova）“错误”

Question

我正在尝试安装OpenStack compute（nova）..当我运行命令**nova list**然后输出结果错误：你必须通过--os_username或env [OS_USERNAME]提供一个用户名如何编写解决方案的代码我？

Answer 1

If you used devstack ( http://devstack.org/ ) to deploy OpenStack you can use openrc trick:

$cd devstack/
$source openrc admin admin # for admin rights

or

$source openrc demo demo # for demo user

Otherwise you need to export OS variables manually:

$export OS_USERNAME = admin
$export OS_TENANT_NAME = <yourtenant>
$export OS_PASSWORD = <yourpasswd> # password which you used during deployment etc

Related question How to manage users/passwords in devstack?

If you want manually install all the services here's handy manual https://github.com/mseknibilel/OpenStack-Grizzly-Install-Guide/blob/OVS_MultiNode/OpenStack_Grizzly_Install_Guide.rst

I'd recommend to install it once by this manual to learn how it works, and then use latest stable devstack each time when you need to set up a new environment just to save your time.

Regards

Answer 2

to remove this error you just need to execute command "source openrc"

where openrc is the file where in all the credentilas are stored .. make sure you have that file in the folder. You might also have name of the file something other than open but it ll end with rc .. just change the name according to your file

Answer 3

在我的情况下，我需要调用“source stackrc”，它解决了问题。

Answer 4

I did the following to get rid of the error.

cd devstack
. openrc #this will setup the environment

Answer 5

以下命令用于获取“admin”的访问权限并使用项目“admin”

 . openrc admin admin