openstack使用中遇到的报错和新建

一、创建网络

openstack network create --share --external --provider-network-type flat public --provider-physical-network provider

openstack subnet create --network public \
--allocation-pool start=172.20.11.33,end=172.20.11.240 \
--dns-nameserver 223.5.5.5 \
--gateway 172.20.2.250 \
--subnet-range 172.20.0.0/16 subnet_172.20

openstack port create --network public --fixed-ip subnet=subnet_172.20 ip-address=172.20.11.110

2、创建实例一直卡在build，没有日志，没有报错，只是一直卡着

问题点：经过多次删除网络等发现在 管理员-计算-虚拟机管理器-计算主机 中的nova服务的状态为“DOWN”，在控制节点重启nova解决

systemctl restart openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

systemctl status openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

systemctl enable openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

 

问题： 创建实例后ssh连接失败

解决：在创建实例时配置中使用脚本开启即可

#!/bin/bash
sed -i 's/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config
systemctl restart sshd