OpenStack部署及创建云主机实例

这里使用 Packstack 工具安装，Packstack是一个实用程序，它使用Puppet 模块在多个预安装的服务器上自动部署 OpenStack 的各个部分SSH。

备注：Packstack 仅适用于 CentOS

--------------------------------------------------------OpenStack部署-----------------------------------------------------------

我使用的虚拟机部署的，最好是一个全新的虚拟机，这样能尽最大可能排除一些部署报错问题，虚拟机配置：

配置：4C8G
系统：CentOS 7.4

1、虚拟机环境处理：

# 关闭服务
systemctl stop firewalld
systemctl stop NetworkManager

# 禁止开机启动
systemctl disable firewalld
systemctl disable NetworkManager

# 修改selinux配置
vim /etc/selinux/config
SELINUX=disabled

2、安装RDO和 Packstack

yum -y install http://rdo.fedorapeople.org/rdo-release.rpm
yum -y install openstack-packstack

3、在本机上部署所有服务。

packstack --allinone

执行该命令，会生成一个应答文件。

4、部署完成

当显示 **** Installation completed successfully ******时，就成功了。
同时，根目录下有个 keystonerc_admin 文件，里面是 admin 的相关信息。

5、cat keystonerc_admin即可查看登录用户名和密码

unset OS_SERVICE_TOKEN
    export OS_USERNAME=admin
    export OS_PASSWORD='670f8e70bc674a02'
    export OS_REGION_NAME=RegionOne
    export OS_AUTH_URL=http://192.168.2.186:5000/v3
    export PS1='[\u@\h \W(keystone_admin)]\$ '

export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_IDENTITY_API_VERSION=3

6、部署过程中会遇到很多报错，当报错问题解决后，执行以下命令，依据应答文件进行安装：

packstack --answer-file=packstack-answers-20211115-165502.txt

-----------------------------------------------------------报错问题---------------------------------------------------------------------
最常见的就是以下这个问题：

Welcome to the Packstack setup utility

The installation log file is available at: /var/tmp/packstack/20210623-051807-ua_ze5/openstack-setup.log

Installing:
Clean Up                                             [ DONE ]
Discovering ip protocol version                      [ DONE ]
Setting up ssh keys                                  [ DONE ]
Preparing servers                                    [ DONE ]
Pre installing Puppet and discovering hosts' details[ ERROR ]

ERROR : Failed to run remote script, stdout:
stderr: Warning: Permanently added '10.0.242.230' (ECDSA) to the list of known hosts.
+ trap t ERR
+ facter -p
facter: error while loading shared libraries: leatherman_curl.so.1.3.0: cannot open shared object file: No such file or directory
++ t
++ exit 127

Please check log file /var/tmp/packstack/20210623-051807-ua_ze5/openstack-setup.log for more information
Additional information:
 * Parameter CONFIG_NEUTRON_L2_AGENT: You have chosen OVN Neutron backend. Note that this backend does not support the VPNaaS or FWaaS services. Geneve will be used as the encapsulation method for tenant networks
 * A new answerfile was created in: /root/packstack-answers-20210623-051808.txt
 * Time synchronization installation was skipped. Please note that unsynchronized time on server instances might be problem for some OpenStack components.

该报错是由leatherman 版本问题引起的，部署需要leatherman_curl.so.1.3.0，而我们的本地版本是1.10.0：

# yum list | grep leatherman
leatherman.x86_64                       1.10.0-1.el7             @epel
leatherman-devel.x86_64                 1.10.0-1.el7             epel

执行以下命令即可将leatherman版本回退至1.3.0：

yum downgrade leatherman

除此之外，还会遇到很多其他的报错，其他报错请自行查找解决吧。

https://www.cnblogs.com/resn/p/6068138.html
https://blog.csdn.net/weixin_34366546/article/details/92783335

很意外的是，我部署Openstack最后总是会报错，但试着登录了以下页面，竟然可以登录：

-----------------------------------------------------------创建实例---------------------------------------------------------------------
未完待续…