红帽全球峰会57.45. overcloud 角色列表
列出可用的角色。
使用方法：
openstack overcloud role list [-h] [--roles-path <roles directory>]| value | Summary |
|---|---|
| -h, --help | 显示帮助信息并退出 |
| --roles-path <roles directory> | 包含角色 yaml 文件的文件系统路径。默认情况下，这是 /usr/share/openstack-tripleo-heat- templates/roles |
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