<h1> </h1>
<p> </p>
<h1>准备centos7.6，OpenStack-ocata</h1>
<h1>1、换源</h1>
<p>安装OpenStack时，各个版本不同 api和插件也不同，a-z命名的版本中已经t版本了应该x版本（xena），学习的速度赶不上更新的速度了都，就离谱。。不多说，干。</p>
<p>此次安装采用的是packstack一键安装，（如果从头开始安装，源的问题会很慢还有各种组件安装和配置文件的配置）。</p>
<p>packstack安装时如果不指定yum源，则只能下载最新的几个版本，我当时t，u，v三个版本</p>
<h2>1.1，查看源地址</h2>
<p><img alt="" height="364" src="https://beijingoptbbs.oss-cn-beijing.aliyuncs.com/cs/5606289-be381c416809fee43000961f2bbc979c.png" width="663"></p>
<p>由图可知centos7.6版本还支持安装OpenStack-ocata版本，图中地址：</p>
<p><a href="http://mirrors.oit.uci.edu/centos/7.6.1810/cloud/x86_64/">http://mirrors.oit.uci.edu/centos/7.6.1810/cloud/x86_64/</a></p>
<h2>1.2，修改yum源</h2>
<pre class="blockcode"><code class="language-bash">[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# ls
CentOS-Base.repo CentOS-CR.repo CentOS-Debuginfo.repo CentOS-fasttrack.repo CentOS-Media.repo CentOS-Sources.repo CentOS-Vault.repo
[root@localhost yum.repos.d]# mkdir bk
[root@localhost yum.repos.d]# mv ./C* bk/
[root@localhost yum.repos.d]# ls
bk
[root@localhost yum.repos.d]#
</code></pre>
<p>先把官方源备份走，然后创建自己的源文件并修改</p>
<p><img alt="" height="505" src="https://beijingoptbbs.oss-cn-beijing.aliyuncs.com/cs/5606289-b1f4b222c55ece7baa77d8351d47323d.png" width="722"></p>
<p>代码段</p>
<pre class="blockcode"><code>[root@localhost yum.repos.d]# vim /etc/yum.repos.d/openstack-ocata.repo
[root@localhost yum.repos.d]# cat /etc/yum.repos.d/openstack-ocata.repo
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[centos_76_1810]
name=CentOS-$releasever - Base
baseurl=http://10.5.1.100/pxe/os/centos_76_1810/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
[openstack-ocata]
name=openstack-ocata
baseurl=http://mirrors.oit.uci.edu/centos/7.6.1810/cloud/x86_64/openstack-ocata
gpgcheck=0
[extras67]
name=extras67
gpgcheck=0
baseurl=http://mirrors.oit.uci.edu/centos/7.6.1810/extras/x86_64/
[virt67]
name=virt67
gpgcheck=0
baseurl=http://mirrors.oit.uci.edu/centos/7.6.1810/virt/x86_64/kvm-common/
[root@localhost yum.repos.d]#</code></pre>
<p>清理源缓存</p>
<pre class="blockcode"><code>[root@localhost yum.repos.d]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: centos_76_1810 extras67 openstack-ocata virt67
[root@localhost yum.repos.d]#yum update -y</code></pre>
<h1>2、安装</h1>
<p><u>控制节点+网络节点：一台机器</u></p>
<p><u>计算节点：一台机器</u></p>
<h3><span style="color:#f33b45;">在所有物理机上都执行(单机只在一台机器运行即控制节点）</span></h3>
<p>关闭NetworkManager服务</p>
<pre class="blockcode"><code>[root@localhost ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@localhost ~]# systemctl stop firewalld
[root@localhost ~]# systemctl disable NetworkManager
Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service.
Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.
Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.
Removed symlink /etc/systemd/system/network-online.target.wants/NetworkManager-wait-online.service.
[root@localhost ~]# systemctl stop NetworkManager
[root@localhost ~]# systemctl enable network
network.service is not a native service, redirecting to /sbin/chkconfig.
Executing /sbin/chkconfig network on
[root@localhost ~]# systemctl start network</code></pre>
<p>安装deltarpm</p>
<pre class="blockcode"><code>[root@localhost ~]# yum install deltarpm -y</code></pre>
<p>关闭selinux</p>
<pre class="blockcode"><code>[root@localhost ~]# cat /etc/selinux/config | grep SELINUX=
# SELINUX= can take one of these three values:
SELINUX=disabled</code></pre>
<p>设置主机名分别设置控制节点，计算节点等的主机名</p>
<p>hostnamectl set-hostname control.myopenstack.com</p>
<p>hostnamectl set-hostname compute.myopenstack.com</p>
<p>hostnamectl status</p>
<p>hostnamectl status --static</p>
<p>hostnamectl status --transient</p>
<p>hostnamectl status --pretty</p>
<h3><span style="color:#f33b45;">在控制节点执行</span></h3>
<p>安装packstack</p>
<p>yum install -y openstack-packstack</p>
<p>确保/etc/yum.repos.d/下只有自己创建的yum源文件。</p>
<p>生成应答文件：（如果不要自定义配置及 |
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