devstack nova服务不可用，DiscoveryFailure: Could not find versioned identity endpoints when attempting to

devstack nova服务不可用，DiscoveryFailure: Could not find versioned identity endpoints when attempting to authenticate

查找思路：

Created with Raphaël 2.2.0 Start telnet host 80 can_be_telnet httpd_is_ok iptables -L -n 80_is_ok iptables -I INPUT -p tcp -m tcp -dport 80 -j ACCEPT systemctl restart httpd no yes no no

问题：

80端口没开，httpd服务没起

解决方法：

iptables -I INPUT -p tcp -m tcp -dport 80 -j ACCEPT
systemctl restart httpd