一、概述
常言道“授人以鱼不如授人以渔”，但搭建好Openstack后没有直接可用的镜像，往往会遇到“巧妇难为无米之炊”的尴尬，有些技术朋友以江湖救急令的方式在群里讨要镜像，估计是不愿浪费时间在这上面。借工作机会，本人花了几天的时间，一口气做了好几个版本的Windows镜像，这里一并分享，制作方法[……]
2017年5月26日 Openstack, 云计算 3 comments Openstack
Openstack测试验证主要包括服务状态验证、功能测试、性能测试和高可用测试等部分。
当计算能力和存储容量无法满足业务发展需求时，需要增加计算节点和存储节点，这里的计算节点和存储节点是融合的，提供一个简单的脚本进行云平台的扩容，主要进行Ceph和Openstack服务的安装部署。在安装部署前需要完成防火墙、SELinux禁用、安装源、时间同步、主机名设置、网络设置、Hos[……]
计算节点上服务配置相对于控制节点和网络节点来说比较简单，很多都是配置Openstack服务客户端，这里主要进行集成Ceph的配置，并配置Openstack的nova、neutron、ceilometer的客户端，具体不再赘述，配置内容参考脚本及文档。
脚本部署比较简单，[……]
Openstack的后端存储对接Ceph分布式统一存储，将Glance镜像、Nova虚拟机及快照、Cinder-Volume的存储在Ceph统一存储上。Ceph在Openstack社区的带动下发展迅速，已经成为最受欢迎的开源Openstack后端存储，Ceph的相关内容将在后面的博客中进[……]
Openstack告警服务Aodh负责当收集的数据度量或事件超过所设定的阈值时，会出发报警。从Liberty 版本后从Ceilometer 中拆分出来，独立为单独的项目，Aodh告警可以出发多种形式的动作，目前已经实现的动作有HTTP回调，日志记录和 通过 Zaqar的API发送通知消息[……]
Openstack数据收集服务Telemetry主要由Ceilomter组件负责Openstack相关服务的统计、计量和计费，Ceilomter通过收集各个服务的事件及数据进行检测，目标是为上层的计费、结算或者监控应用提供统一的资源使用数据收集功能。
Telemetry服务主要包括[……]
Openstack块存储服务Cinder主要为实例提供块设备存储服务，类似可热插拔的移动硬盘的功能。存储的分配和消耗是由块存储驱动器，或者多后端配置的驱动器决定的。目前有很多驱动程序可用，如NAS/SAN，NFS，ISCSI，Ceph等。一般情况下，块服务API和调度器服务运行在控制节点[……]
2017年5月6日 Openstack, 云计算 No comments Openstack, Shell
今天在现场调整虚拟机大小时出现错误，查看了日志和网上的解决方案，问题是计算节点之间nova用户之间需要配置SSH，所以配置完成即可。
日志出错内容如下：
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2017-05-06 13:13:23.383 156583 INFO nova.compute.manager [req-102fbe46-d741-4f74-a966-e81662a71c80 0733a705b68d426095938fd615b0db61 2dab6332fbfe4d9d8d19080d596eba95 - - -] [instance: d214367d-a7ca-46a0-95a9-1e42420a1eb5] Setting instance back to ACTIVE after: Instance rollback performed due to: Resize error: not able to execute ssh command: Unexpected error while running command. Command: ssh 172.20.103.7 mkdir -p /var/lib/nova/instances/d214367d-a7ca-46a0-95a9-1e42420a1eb5 Exit code: 255 Stdout: u'' Stderr: u"Warning: Permanently added '172.20.103.7' (ECDSA) to the list of known hosts.\r\nPermission denied, please try again.\r\nPermission denied, please try again.\r\nPermission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\r\n" 2017-05-06 13:13:23.711 156583 INFO nova.compute.manager [req-102fbe46-d741-4f74-a966-e81662a71c80 0733a705b68d426095938fd615b0db61 2dab6332fbfe4d9d8d19080d596eba95 - - -] [instance: d214367d-a7ca-46a0-95a9-1e42420a1eb5] Successfully reverted task state from None on failure for instance. 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher [req-102fbe46-d741-4f74-a966-e81662a71c80 0733a705b68d426095938fd615b0db61 2dab6332fbfe4d9d8d19080d596eba95 - - -] Exception during message handling: Resize error: not able to execute ssh command: Unexpected error while running command. Command: ssh 172.20.103.7 mkdir -p /var/lib/nova/instances/d214367d-a7ca-46a0-95a9-1e42420a1eb5 Exit code: 255 Stdout: u'' Stderr: u"Warning: Permanently added '172.20.103.7' (ECDSA) to the list of known hosts.\r\nPermission denied, please try again.\r\nPermission denied, please try again.\r\nPermission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\r\n" 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher Traceback (most recent call last): 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 138, in _dispatch_and_reply 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher incoming.message)) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 183, in _dispatch 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher return self._do_dispatch(endpoint, method, ctxt, args) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 127, in _do_dispatch 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher result = func(ctxt, **new_args) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/exception.py", line 110, in wrapped 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher payload) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher self.force_reraise() …… 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher migration.instance_uuid, exc_info=True) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher self.force_reraise() 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 293, in decorated_function 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher return function(self, context, *args, **kwargs) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 387, in decorated_function 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher kwargs['instance'], e, sys.exc_info()) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher self.force_reraise() 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 375, in decorated_function 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher return function(self, context, *args, **kwargs) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3932, in resize_instance 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher self.instance_events.clear_events_for_instance(instance) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib64/python2.7/contextlib.py", line 35, in __exit__ 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher self.gen.throw(type, value, traceback) 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 6616, in _error_out_instance_on_exception 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher raise error.inner_exception 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher ResizeError: Resize error: not able to execute ssh command: Unexpected error while running command. 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher Command: ssh 172.20.103.7 mkdir -p /var/lib/nova/instances/d214367d-a7ca-46a0-95a9-1e42420a1eb5 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher Exit code: 255 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher Stdout: u'' 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher Stderr: u"Warning: Permanently added '172.20.103.7' (ECDSA) to the list of known hosts.\r\nPermission denied, please try again.\r\nPermission denied, please try again.\r\nPermission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\r\n" 2017-05-06 13:13:23.722 156583 ERROR oslo_messaging.rpc.dispatcher |
对nova用户进行配置。
1、取消禁[……]