packstack安装以及centos源配置注意事项

On CentOS:
安装分为四步：

1，$ sudo yum install -y centos-release-openstack-mitaka           
2，$ sudo yum update -y
3，$ sudo yum install -y openstack-packstack
4，$ packstack --allinone

但是我们执行到第二步之后
查看：/etc/yum.repos.d

[root@openstack-test-zhang ~]# cd /etc/yum.repos.d/
[root@openstack-test-zhang yum.repos.d]# ls
centos7.repo  CentOS-Base.repo  CentOS-Ceph-Hammer.repo  CentOS-OpenStack-mitaka.repo  CentOS-QEMU-EV.repo

然后去查看openstack源：CentOS-OpenStack-mitaka.repo

[root@openstack-test-zhang yum.repos.d]# vim CentOS-OpenStack-mitaka.repo 
# CentOS-OpenStack-mitaka.repo
#
# Please see http://wiki.centos.org/SpecialInterestGroup/Cloud for more
# information

[centos-openstack-mitaka]
name=CentOS-7 - OpenStack mitaka
baseurl=http://mirror.centos.org/centos/7/cloud/$basearch/openstack-mitaka/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud

[centos-openstack-mitaka-test]
name=CentOS-7 - OpenStack mitaka Testing
baseurl=http://buildlogs.centos.org/centos/7/cloud/$basearch/openstack-mitaka/
gpgcheck=0
enabled=0

[centos-openstack-mitaka-debuginfo]
name=CentOS-7 - OpenStack mitaka - Debug
baseurl=http://debuginfo.centos.org/centos/7/cloud/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud

[centos-openstack-mitaka-source]
name=CentOS-7 - OpenStack mitaka - Source
baseurl=http://vault.centos.org/centos/7/cloud/Source/openstack-mitaka/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud
~                                                             

红色区域的enbled默认值为0，修改为1那么执行第三步sudo yum install -y openstack-packstack才能安装成功

也就是说这个http://mirror.centos.org/centos/7/cloud/$basearch/openstack-mitaka/网址提供的镜像才能够使用