根据 Openstack Official Heat/Plugins wiki https://wiki.openstack.org/wiki/Heat/Plugins的指示,我们只需要“安装插件,将 Python 模块复制到配置的插件目录之一。注意此后必须重新启动 heat-engine 才能加载新插件。”。但是我在重新启动热机后遇到以下错误消息..
[root@cs14 heat]# heat-engine
2015-05-04 06:02:09.774 20839 WARNING heat.common.config [-] HT-A65A0DF The "instance_user" option in heat.conf is deprecated and will be removed in the Juno release.
[05/04/2015 06:02:10 EDT]heatCRITICAL : ImportError: No module named my_heat_plugin.client
Traceback (most recent call last):
File "/usr/bin/heat-engine", line 67, in <module>
srv = engine.EngineService(cfg.CONF.host, rpc_api.ENGINE_TOPIC)
File "/usr/lib/python2.6/site-packages/heat/engine/service.py", line 288, in __init__
resources.initialise()
File "/usr/lib/python2.6/site-packages/heat/engine/resources/__init__.py", line 44, in initialise
_load_global_environment(global_env)
File "/usr/lib/python2.6/site-packages/heat/engine/resources/__init__.py", line 49, in _load_global_environment
_load_global_resources(env)
File "/usr/lib/python2.6/site-packages/heat/engine/resources/__init__.py", line 54, in _load_global_resources
manager = plugin_manager.PluginManager(__name__)
File "/usr/lib/python2.6/site-packages/heat/engine/plugin_manager.py", line 58, in __init__
self.modules = list(modules())
File "/usr/lib/python2.6/site-packages/heat/common/plugin_loader.py", line 91, in load_modules
module = _import_module(importer, module_name, package)
File "/usr/lib/python2.6/site-packages/heat/common/plugin_loader.py", line 72, in _import_module
module = loader.load_module(module_name)
File "/usr/lib64/python2.6/pkgutil.py", line 238, in load_module
mod = imp.load_module(fullname, self.file, self.filename, self.etc)
File "/usr/lib/heat/abc_heat_plugin/resources/abc/abc_server.py", line 24, in <module>
from abc_heat_plugin.client import constants as const
ImportError: No module named abc_heat_plugin.client
为了解决这个问题,我想出了两种可行的方法。方法 1. 将 abc_heat_plugin 复制到 /usr/lib/python2.6/site-packages 并重启 heat-engine 方法 2. 使用 .pth 文件。1)创建一个文件/usr/lib/python2.6/site-packages/.pth,下面三行(如果存在则不需要)
/usr/lib/heat
/usr/lib/heat/abc_heat_plugin
/usr/lib/heat/abc_heat_plugin/client
2) 将插件“my_heat_plugin”复制到/usr/lib/heat
3) 重启热服务
但是两种方式都必须比官方指南做的更多,所以我想知道我是否错过了任何重要的事情。有什么建议么?谢谢。(顺便说一句,my_heat_plugin 运行良好。)