openstack云平台搭建---1基本环境配置
1.操作系统：centos 7
2.节点：controller(控制节点--keystone，镜像glance...)，compute(计算节点--Nova)，block(储存节点)， neutron(网络节点)，网络配置如下：
网络配置：
Controller：M--192.168.9.128
Compute：M--192.168.9.129
I--172.16.0.10
Network：M--192.168.9.130
I--172.16.0.6
E:100.100.100.10
Block：M—192.168.9.131
3.准配资源：
链接：https://pan.baidu.com/s/1HF8WH85MHFZq5lJ-My4Y9A
提取码：q5mp
以上资源为yum源，下到本地后通过server-u创建局域网，在linux中共享yum源
下图是我的操作系统：
[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.5.1804 (Core) 好，下面开始操作
1.设置主机名
[root@localhost ~]# hostnamectl set-hostname controller
##########设置完毕，查看设置成果
[root@localhost ~]# hostname
controller ####设置完成2.关闭防火墙，关闭selinux
[root@controller ~]# iptables -F ######关闭防火墙
[root@controller ~]# systemctl stop firewalld ######关闭防火墙
[root@controller ~]# systemctl disable firewalld ###设置开机自动关闭防火墙
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@controller ~]# vi /etc/selinux/config ###编辑selinux配置文件，使selinux关闭
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three two values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Lev
[root@controller ~]# setenforce 0 ###手动设置selinux，
[root@controller ~]# getenforce ###查看的设置，已经完成
Permissive
3.添加host文件，主机名与ip的对应关系
[root@controller ~]# vi /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.9.128 controller4.(1)配置局域网yum源
[root@controller ~]# cd /etc/yum.repos.d/
[root@controller yum.repos.d]# ls ###首先把系统自带的yum源全部移到bak目录中去，如下：
CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo
CentOS-CR.repo CentOS-fasttrack.repo CentOS-Sources.repo
[root@controller yum.repos.d]# mkdir bak
[root@controller yum.repos.d]# mv C* bak/
[root@controller yum.repos.d]# ls
bak
[root@controller yum.repos.d]# vi ftp.repo ###创建yum仓库，添加如下命令：
[base]
name=base
baseurl=ftp://q:[email protected]/7/os/x86_64/
enabled=1
gpgcheck=0
[updates]
name=updates
baseurl=ftp://q:[email protected]/7/updates/x86_64/
enabled=1
gpgcheck=0
[extras]
name=extras
baseurl=ftp://q:[email protected]/7/extras/x86_64/
enabled=1
gpgcheck=0
[epel]
name=epel
baseurl=ftp://q:[email protected]/7/epel
enabled=1
gpgcheck=0
[rdo]
name=rdo
baseurl=ftp://q:[email protected]/7/rdo
enabled=1
gpgcheck=0
[root@localhost ~]# yum clean all ###清除原来的缓存
Loaded plugins: fastestmirror
Cleaning repos: base epel extras rdo updates
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors
[root@controller ~]# yum makecache ###生成新的yum缓存 如果这一步报错，那么在网卡中添加网关和DNS
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base | 3.6 kB 00:00:00
epel | 4.4 kB 00:00:00
extras | 3.4 kB 00:00:00
rdo | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/18): base/group_gz | 157 kB 00:00:00
(2/18): base/primary_db | 4.9 MB 00:00:00
(3/18): base/filelists_db | 5.8 MB 00:00:00
(4/18): base/other_db | 2.1 MB 00:00:00
(5/18): epel/group_gz | 250 kB 00:00:00
(6/18): epel/primary_db | 3.5 MB 00:00:00
(7/18): epel/filelists_db | 5.0 MB 00:00:00
(8/18): epel/other_db | 1.7 MB 00:00:00
(9/18): extras/filelists_db | 92 kB 00:00:00
(10/18): extras/prestodelta | 1.7 kB 00:00:00
(11/18): extras/primary_db | 35 kB 00:00:00
(12/18): extras/other_db | 67 kB 00:00:00
(13/18): rdo/primary_db | 148 kB 00:00:00
(14/18): rdo/filelists_db | 454 kB 00:00:00
(15/18): rdo/other_db | 94 kB 00:00:00
(16/18): updates/filelists_db | 2.6 MB 00:00:00
(17/18): updates/other_db | 377 kB 00:00:00
(18/18): updates/primary_db | 4.4 MB 00:00:00
(1/2): epel/updateinfo | 130 kB 00:00:00
(2/2): epel/pkgtags | 1.3 MB 00:00:00
Metadata Cache Created5.安装openstack预备包，此作用是防止高优先级软件被低优先级软件覆盖
[root@controller ~]# yum install -y yum-plugin-priorities
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base | 3.6 kB 00:00:00
epel | 4.4 kB 00:00:00
extras | 3.4 kB 00:00:00
rdo | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package yum-plugin-priorities.noarch 0:1.1.31-25.el7_0 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===================================================================================================
Package Arch Version Repository Size
===================================================================================================
Installing:
yum-plugin-priorities noarch 1.1.31-25.el7_0 updates 23 k
Transaction Summary
===================================================================================================
Install 1 Package
Total download size: 23 k
Installed size: 28 k
Downloading packages:
yum-plugin-priorities-1.1.31-25.el7_0.noarch.rpm | 23 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : yum-plugin-priorities-1.1.31-25.el7_0.noarch 1/1
Verifying : yum-plugin-priorities-1.1.31-25.el7_0.noarch 1/1
Installed:
yum-plugin-priorities.noarch 0:1.1.31-25.el7_0
Complete!6.因为我们采用的是局域网yum源，因此需要进行升级软件包
[root@controller ~]# yum upgrade ###升级软件包7.安装openstack-selinux包---自动管理selinux，如果前面你的selinux已经设置关闭，那这个包可以不用安装
[root@controller ~]# yum install -y openstack-selinux ###自动管理selinux8.配置NTP时钟同步服务，在controller中安装作ntp服务端，其他节点同步controller的时间
编辑ntp配置文件把以下四行代码注释掉，
server 0.centos.pool.ntp.org iburst
server 1.centos.pool.ntp.org iburst
server 2.centos.pool.ntp.org iburst
server 3.centos.pool.ntp.org iburst
注释完之后在四行代码下面添加如下代码：
server 127.127.1.0
fudge 127.127.1.0 stratum 10
下图就是改过之后的代码，然后退出并保存
[root@controller ~]# yum install -y ntp ###安装ntp服务
[root@controller ~]# vi /etc/ntp.conf
# For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).
driftfile /var/lib/ntp/drift
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default nomodify notrap nopeer noquery
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict ::1
# Hosts on local network are less restricted.
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
#server 0.centos.pool.ntp.org iburst
#server 1.centos.pool.ntp.org iburst
#server 2.centos.pool.ntp.org iburst
#server 3.centos.pool.ntp.org iburst
server 127.127.1.0
fudge 127.127.1.0 stratum 10开启ntp，并设置为开机自启
[root@controller ~]# systemctl start ntpd ###开启ntp
[root@controller ~]# systemctl enable ntpd ###设置开机自启ntp
Created symlink from /etc/systemd/system/multi-user.target.wants/ntpd.service to /usr/lib/systemd/system/ntpd.service.至此openstack基础环境配置完毕！