云计算技能大赛 -- openstack私有云环境 第一部分
原文博客地址
1、配置信息
注： 文章中所用()中的内容皆为提示，如(controller AND compute)表示 此命令在两台节点都需要执行。
使用 VM 虚拟机进行实验。
| 主机名 | IP地址 |
|---|---|
| controller | 内网(仅主机模式)：192.168.20.10/24、外网(Nat模式)：192.168.10.10/24 |
| compute | 内网(仅主机模式)：192.168.20.20/24、外网(Nat模式)：192.168.10.20/24 |
虚拟机配置截图
######提示######
内网请使用 仅主机模式 不要学我用LAN 不然后面就会后悔的
- controller节点配置（处理器处开启 虚拟化支持）
- compute节点配置（处理器处开启 虚拟化支持）
2、安装基础操作系统
CentOS7系统选择1804版本：CentOS-7-x86_64-DVD-1804.iso
| 百度云盘 | 提取码 |
|---|---|
| https://pan.baidu.com/s/1SLha9Cih1VAv77qmup2LJA | vyto |
controller 和 compute 节点安装过程是一致的，要将磁盘空间大部分放置在 “/” 根目录下，compute节点后续需要做swift、cinder分区，要预留 100G 左右的硬盘空间。
安装过程图文描述
将CentOS-7-x86_64-DVD-1804.iso镜像，加载到虚拟机镜像挂载的位置，最后点击确定，然后就可以点击开机。(两台虚拟机都要先安装好系统)
Install CentOS7 安装CentOS7系统、Test this media & install CentOS 7 检测后再安装系统。这里直接选择 安装系统就可以。
节点分区配置: /boot 1024M 、/ 50G（compute节点根目录分50G即可，剩余 最少100G可以供之后使用）。
z系统安装完成后点击 reboot 重启一下。(等待系统安装完成中 …15m…)
3、系统基础环境配置
3.1、网络服务配置
设置IP地址，两台虚拟机使用网卡1互通，使用网卡2与外界通信。
#修改主机名
(controller节点)
[root@localhost ~]# hostnamectl set-hostname controller
[root@localhost ~]# bash
[root@controller ~]# hostnamectl
Static hostname: controller
Icon name: computer-vm
Chassis: vm
Machine ID: a0389ebcbc904f9d9b13f58e5cd79d71
Boot ID: 90b6977ddd124ebeac294728b7dd35d6
Virtualization: vmware
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-862.el7.x86_64
Architecture: x86-64
(compute节点)
[root@localhost ~]# hostnamectl set-hostname compute
[root@localhost ~]# bash
[root@compute ~]#
[root@compute ~]# hostnamectl
Static hostname: compute
Icon name: computer-vm
Chassis: vm
Machine ID: 5b19796e31564946b6d308c2cf1619a2
Boot ID: d65a5777e5b64fe58c648313cdc1554d
Virtualization: vmware
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-862.el7.x86_64
Architecture: x86-64
# 关闭防火墙（controller AND compute）
[root@controller ~]# systemctl stop firewalld
[root@controller ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
#关闭selinux(controller AND compute)
[root@compute ~]# setenforce
usage: setenforce [ Enforcing | Permissive | 1 | 0 ]
[root@compute ~]# setenforce 0
[root@compute ~]# getenforce
Permissive
（此配置为临时生效命令，永久生效，配置为下）
[root@controller ~]# cat /etc/selinux/config
# 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=enforcing
# 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 Level Security protection.
SELINUXTYPE=targeted
[root@controller ~]# sed -i 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config
[root@controller ~]# cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX=disabled
# 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 Level Security protection.
SELINUXTYPE=targeted
（重启后永久生效，关闭selinux）
#关闭NetworkManager 网络管理服务 (controller AND compute)
[root@controller ~]# systemctl stop NetworkManager
[root@controller ~]# 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.
#清除iptables全部的策略（controller AND compute）
[root@controller ~]#
[root@controller ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[root@controller ~]# iptables -F
[root@controller ~]# iptables -Z
[root@controller ~]# iptables -X
[root@controller ~]# iptables-save
# Generated by iptables-save v1.4.21 on Sat Jan 29 17:41:16 2022
*filter
:INPUT ACCEPT [28:1880]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [16:1664]
COMMIT
# Completed on Sat Jan 29 17:41:16 2022
#配置网络(controller AND compute)
[root@controller ~]# vi /etc/sysconfig/network-scripts/ifcfg-ens33
[root@controller ~]# cat /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static #设置静态IP
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=046c4a52-35d6-4b67-8035-7381dc9534e3
DEVICE=ens33
ONBOOT=yes #开机自启网络服务
IPADDR=192.168.20.10 #IP地址
PREFIX=24 #子网掩码位数
[root@controller ~]# cat /etc/sysconfig/network-scripts/ifcfg-ens34
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens34
UUID=c54f26a6-6aca-4487-8d22-a69bf472adb5
DEVICE=ens34
ONBOOT=yes
IPADDR=192.168.10.10
PREFIX=24
GATEWAY=192.168.10.2 #网关地址
DNS1=114.114.114.114 #DNS1 地址(223.5.5.5、223.4.4.4、8.8.8.8)
#重启网络服务
[root@controller ~]# systemctl restart network
#查看IP地址
[root@controller ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:58:9d:f3 brd ff:ff:ff:ff:ff:ff
inet 192.168.20.10/24 brd 192.168.20.255 scope global noprefixroute ens33
valid_lft forever preferred_lft forever
inet6 fe80::69a5:d1e2:4fab:9dfb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:58:9d:fd brd ff:ff:ff:ff:ff:ff
inet 192.168.10.10/24 brd 192.168.10.255 scope global noprefixroute ens34
valid_lft forever preferred_lft forever
inet6 fe80::221:c336:4fad:cb2/64 scope link noprefixroute
valid_lft forever preferred_lft forever
[root@compute ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:a8:cb:60 brd ff:ff:ff:ff:ff:ff
inet 192.168.20.20/24 brd 192.168.20.255 scope global noprefixroute ens33
valid_lft forever preferred_lft forever
inet6 fe80::c251:7dde:8399:82c4/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:a8:cb:6a brd ff:ff:ff:ff:ff:ff
inet 192.168.10.20/24 brd 192.168.10.255 scope global noprefixroute ens34
valid_lft forever preferred_lft forever
inet6 fe80::7c65:4b27:7f69:e201/64 scope link noprefixroute
valid_lft forever preferred_lft forever
#测试虚拟机之间的连通性
(controller ----> compute)
[root@controller ~]# ping 192.168.20.20
PING 192.168.20.20 (192.168.20.20) 56(84) bytes of data.
64 bytes from 192.168.20.20: icmp_seq=1 ttl=64 time=1.62 ms
64 bytes from 192.168.20.20: icmp_seq=2 ttl=64 time=4.13 ms
64 bytes from 192.168.20.20: icmp_seq=3 ttl=64 time=1.42 ms
^C
--- 192.168.20.20 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2030ms
rtt min/avg/max/mdev = 1.426/2.393/4.133/1.232 ms
(compute ----> controller)
[root@compute ~]# ping 192.168.20.10
PING 192.168.20.10 (192.168.20.10) 56(84) bytes of data.
64 bytes from 192.168.20.10: icmp_seq=1 ttl=64 time=0.907 ms
64 bytes from 192.168.20.10: icmp_seq=2 ttl=64 time=1.89 ms
64 bytes from 192.168.20.10: icmp_seq=3 ttl=64 time=1.92 ms
^C
--- 192.168.20.10 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2016ms
rtt min/avg/max/mdev = 0.907/1.572/1.920/0.471 ms
#测试虚拟机和物理机的连通性
(使用物理机ping虚拟机外网卡的IP地址)
C:\Users\willi>ping 192.168.10.10
正在 Ping 192.168.10.10 具有 32 字节的数据:
来自 192.168.10.10 的回复: 字节=32 时间<1ms TTL=64
来自 192.168.10.10 的回复: 字节=32 时间<1ms TTL=64
192.168.10.10 的 Ping 统计信息:
数据包: 已发送 = 2，已接收 = 2，丢失 = 0 (0% 丢失)，
往返行程的估计时间(以毫秒为单位):
最短 = 0ms，最长 = 0ms，平均 = 0ms
Control-C
C:\Users\willi>ping 192.168.10.20
正在 Ping 192.168.10.20 具有 32 字节的数据:
来自 192.168.10.20 的回复: 字节=32 时间<1ms TTL=64
来自 192.168.10.20 的回复: 字节=32 时间=4ms TTL=64
来自 192.168.10.20 的回复: 字节=32 时间=1ms TTL=64
来自 192.168.10.20 的回复: 字节=32 时间=6ms TTL=64
192.168.10.20 的 Ping 统计信息:
数据包: 已发送 = 4，已接收 = 4，丢失 = 0 (0% 丢失)，
往返行程的估计时间(以毫秒为单位):
最短 = 0ms，最长 = 6ms，平均 = 2ms
（测试无问题后，可以使用远程连接工具进行连接，方便执行命令或上传文件等）
#配置主机名映射(controller AND compute)
（配置主机名映射，是因为在后面配置openstack中使用到的api接口是以主机名进行连接的，将IP映射到主机名上，使用主机名即可访问）
[root@controller ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.20.10 controller #此处填写自己主机的内网IP地址
192.168.20.20 compute #此处填写compute主机的内网IP
#测试使用主机名映射的连通性
(controller ----> compute)
[root@controller ~]# ping compute
PING compute (192.168.20.20) 56(84) bytes of data.
64 bytes from compute (192.168.20.20): icmp_seq=1 ttl=64 time=1.50 ms
64 bytes from compute (192.168.20.20): icmp_seq=2 ttl=64 time=3.29 ms
64 bytes from compute (192.168.20.20): icmp_seq=3 ttl=64 time=0.972 ms
(compute ----> controller)
[root@compute ~]# ping controller
PING controller (192.168.20.10) 56(84) bytes of data.
64 bytes from controller (192.168.20.10): icmp_seq=1 ttl=64 time=0.758 ms
64 bytes from controller (192.168.20.10): icmp_seq=2 ttl=64 time=2.31 ms
3.2、yum源配置
# 备份 yum 源文件(controller AND compute)
[root@controller ~]# mkdir /backup
[root@controller ~]# mv /etc/yum.repos.d/* /backup/
[root@controller ~]# ll /backup/
total 32
-rw-r--r--. 1 root root 1664 Apr 29 2018 CentOS-Base.repo
-rw-r--r--. 1 root root 1309 Apr 29 2018 CentOS-CR.repo
-rw-r--r--. 1 root root 649 Apr 29 2018 CentOS-Debuginfo.repo
-rw-r--r--. 1 root root 314 Apr 29 2018 CentOS-fasttrack.repo
-rw-r--r--. 1 root root 630 Apr 29 2018 CentOS-Media.repo
-rw-r--r--. 1 root root 1331 Apr 29 2018 CentOS-Sources.repo
-rw-r--r--. 1 root root 4768 Apr 29 2018 CentOS-Vault.repo
#将 Iaas 的镜像包上传到controller节点上(controller)
#挂载 系统基础 镜像包和 Iaas 镜像包(controller)
[root@controller ~]# mkdir /iso_dir
[root@controller ~]# mkdir /iso_dir/centos
[root@controller ~]# mkdir /iso_dir/iaas
[root@controller ~]# mount /dev/sr0 /iso_dir/centos/
mount: no medium found on /dev/sr0 #这里的错误是找不到sr0的设备，原因是 光盘没连接上(图-3.2.1)
[root@controller ~]# mount /dev/sr0 /iso_dir/centos/
mount: /dev/sr0 is write-protected, mounting read-only
[root@controller ~]# mount /root/chinaskills_cloud_iaas.iso /iso_dir/iaas/
mount: /dev/loop0 is write-protected, mounting read-only #仅读文件挂载
（这里的挂载是临时挂载，后面会告诉大家，永久挂载的方法）
#repo文件编写(controller)
[root@controller ~]# vi /etc/yum.repos.d/local.repo
[root@controller ~]# cat /etc/yum.repos.d/local.repo
[centos] #源的标识(ID)
name = CentOS-$releasever #源的名字(rpeo name)
baseurl = file:///iso_dir/centos/ #源地址(本地地址 使用 file:// + 本地源绝对路径)
gpgcheck = 0 #0 代表 否定检测源
enabled = 1 #1 代表开启使用本源
[Iaas]
name = chainskill-Iaas
baseurl = file:///iso_dir/iaas/iaas-repo
gpgcheck = 0
enabled = 1
（测试repo文件和挂载文件是否成功）
[root@controller ~]# yum clean all && yum makecache && yum repolist
......
repo id repo name status
Iaas chainskill-Iaas 3,232
centos CentOS-7 3,971
repolist: 7,203
（完成）
#安装vsftp服务，让compute节点使用controller的yum源
[root@controller ~]# yum install -y vim net-tools vsftpd tree
#修改vsftp的配置文件
（添加配置）
[root@controller ~]# vim /etc/vsftpd/vsftpd.conf
[root@controller ~]# head -4 /etc/vsftpd/vsftpd.conf
# Example config file /etc/vsftpd/vsftpd.conf
anon_root=/iso_dir #设置可以访问到的ftp根目录
#
#将repo文件的file://修改为ftp和主机名 并启动ftp
[root@controller ~]# vim /etc/yum.repos.d/local.repo
[root@controller ~]# cat /etc/yum.repos.d/local.repo
[centos]
name = CentOS-$releasever
baseurl = ftp://controller/centos/
gpgcheck = 0
enabled = 1
[Iaas]
name = chainskill-Iaas
baseurl = ftp://controller/iaas/iaas-repo
gpgcheck = 0
enabled = 1
[root@controller ~]# systemctl start vsftpd #启动vsftp服务守护进程
[root@controller ~]# systemctl enable vsftpd #设置开机自启
Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.
（测试ftp源有无问题）
[root@controller ~]# yum clean all && yum makecache && yum repolist
......
repo id repo name status
Iaas chainskill-Iaas 3,232
centos CentOS-7 3,971
repolist: 7,203
（无问题）
#将 repo 文件 传输到 compute节点上(controller)
（controller ----> compute）
[root@controller ~]# scp /etc/yum.repos.d/local.repo compute:/etc/yum.repos.d/
The authenticity of host 'compute (192.168.20.20)' can't be established.
ECDSA key fingerprint is SHA256:9RuIaFkz/ujnn9mcGxwPu5uMTxsYfte1hw3EUmVrodg.
ECDSA key fingerprint is MD5:1e:f1:0c:0b:e5:6f:04:dc:e4:9c:cf:7c:9d:cf:21:2d.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'compute,192.168.20.20' (ECDSA) to the list of known hosts.
root@compute's password:
local.repo
#查看源是否有问题(compute)
[root@compute ~]# yum clean all && yum makecache && yum repolist
......
repo id repo name status
Iaas chainskill-Iaas 3,232
centos CentOS-7 3,971
repolist: 7,203
（无问题）
>>>>>>> yum 源文件至此就算是配置完成 <<<<<<<<<
#永久挂载
[root@controller ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Jan 29 15:37:36 2022
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=c1702ad4-b7ad-4d60-a8f6-889e609850c0 /boot xfs defaults 0 0
/root/chinaskills_cloud_iaas.iso /iso_dir/iaas iso9660 defaults 0 0
#被挂载文件的绝对路径 挂载路径 文件类型
/dev/sr0 /iso_dir/centos iso9660 defaults 0 0
(图-3.2.1)
4、脚本搭建openstack平台
4.1、分区(swift AND cinder on compute)
（如果安装系统的时候没有预留空间，可以重新添加一块或两块硬盘，格式化成xfs格式就行了）
# 分区(compute)
[root@compute ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 200G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 199G 0 part
└─centos-root 253:0 0 199G 0 lvm /
sdb 8:16 0 100G 0 disk
sr0 11:0 1 1024M 0 rom
[root@compute ~]# fdisk /dev/sdb #选择分区的硬盘
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xdb4e4cbf.
Command (m for help): p #查看分区情况
Disk /dev/sdb: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0xdb4e4cbf
Device Boot Start End Blocks Id System
Command (m for help): n #新建一个分区
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p #选择新建主分区
Partition number (1-4, default 1): #默认为1
First sector (2048-209715199, default 2048): #起始位置
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199): +50G #输入新建分区的大小
Partition 1 of type Linux and of size 50 GiB is set
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Partition number (2-4, default 2):
First sector (104859648-209715199, default 104859648):
Using default value 104859648
Last sector, +sectors or +size{K,M,G} (104859648-209715199, default 209715199):
Using default value 209715199
Partition 2 of type Linux and of size 50 GiB is set
Command (m for help):
Command (m for help): p
Disk /dev/sdb: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0xdb4e4cbf
Device Boot Start End Blocks Id System
/dev/sdb1 2048 104859647 52428800 83 Linux
/dev/sdb2 104859648 209715199 52427776 83 Linux
Command (m for help): w #写入分区
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
#格式化分区为 xfs
[root@compute ~]# mkfs.xfs /dev/sdb1
meta-data=/dev/sdb1 isize=512 agcount=4, agsize=3276800 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=13107200, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=6400, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@compute ~]# mkfs.xfs /dev/sdb2
meta-data=/dev/sdb2 isize=512 agcount=4, agsize=3276736 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=13106944, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=6399, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
4.2、iaas-xiandian 配置文件
# 安装配置文件(controller AND compute)
[root@controller ~]# yum install -y iaas-xiandian
# 修改openrc.sh文件
[root@controller ~]# vim /etc/xiandian/openrc.sh
（使用命令模式输入:%s/^#//g将#开头替换为空，也就是 去掉注释、再使用:%s/PASS=/PASS=000000/g 将PASS=替换为PASS=000000 全部的密码都设置为000000）
[root@controller ~]# cat /etc/xiandian/openrc.sh
#--------------------system Config--------------------##
#Controller Server Manager IP. example:x.x.x.x
HOST_IP=192.168.20.10 #控制节点管理IP
#Controller HOST Password. example:000000
HOST_PASS=000000 #控制节点主机的密码这个需要修改为安装系统的时候设置的密码
#Controller Server hostname. example:controller
HOST_NAME=controller #控制节点主机名
#Compute Node Manager IP. example:x.x.x.x
HOST_IP_NODE=192.168.20.20 #计算节点管理IP
#Compute HOST Password. example:000000
HOST_PASS_NODE=000000 #计算节点的密码和上面一样需要修改
#Compute Node hostname. example:compute
HOST_NAME_NODE=compute #计算节点主机名
#--------------------Chrony Config-------------------##
#Controller network segment IP. example:x.x.0.0/16(x.x.x.0/24)
network_segment_IP=192.168.20.0/24 #控制网络的子网
#--------------------Rabbit Config ------------------##
#user for rabbit. example:openstack
RABBIT_USER=openstack #rabbit 服务的用户(默认即可)
#Password for rabbit user .example:000000
RABBIT_PASS=000000
#--------------------MySQL Config---------------------##
#Password for MySQL root user . exmaple:000000
DB_PASS=000000
#--------------------Keystone Config------------------##
#Password for Keystore admin user. exmaple:000000
DOMAIN_NAME=admin #平台登录的域的名字
ADMIN_PASS=000000 #管理员登录密码
DEMO_PASS=000000
#Password for Mysql keystore user. exmaple:000000
KEYSTONE_DBPASS=000000
#--------------------Glance Config--------------------##
#Password for Mysql glance user. exmaple:000000
GLANCE_DBPASS=000000
#Password for Keystore glance user. exmaple:000000
GLANCE_PASS=000000
#--------------------Nova Config----------------------##
#Password for Mysql nova user. exmaple:000000
NOVA_DBPASS=000000
#Password for Keystore nova user. exmaple:000000
NOVA_PASS=000000
#--------------------Neturon Config-------------------##
#Password for Mysql neutron user. exmaple:000000
NEUTRON_DBPASS=000000
#Password for Keystore neutron user. exmaple:000000
NEUTRON_PASS=000000
#metadata secret for neutron. exmaple:000000
METADATA_SECRET=000000
#Tunnel Network Interface. example:x.x.x.x
INTERFACE_IP=192.168.20.10 #网络接口(云主机和内网通信，在compute节点配置这里需要填写computeIP)
#External Network Interface. example:eth1
INTERFACE_NAME=ens34 #外网网卡(云主机和外网通信)
#External Network The Physical Adapter. example:provider
Physical_NAME=provider #物理网络适配器
#First Vlan ID in VLAN RANGE for VLAN Network. exmaple:101
minvlan=101
#Last Vlan ID in VLAN RANGE for VLAN Network. example:200
maxvlan=200
#--------------------Cinder Config--------------------##
#Password for Mysql cinder user. exmaple:000000
CINDER_DBPASS=000000
#Password for Keystore cinder user. exmaple:000000
CINDER_PASS=000000
#Cinder Block Disk. example:md126p3
BLOCK_DISK=sdb1 #块存储使用之前分区好的 sdb1
#--------------------Swift Config---------------------##
#Password for Keystore swift user. exmaple:000000
SWIFT_PASS=000000
#The NODE Object Disk for Swift. example:md126p4.
OBJECT_DISK=sdb2 #对象存储 使用sdb2
#The NODE IP for Swift Storage Network. example:x.x.x.x.
STORAGE_LOCAL_NET_IP=192.168.20.20 #Swift存储网络的node节点IP(使用计算节点)
#--------------------Heat Config----------------------##
#Password for Mysql heat user. exmaple:000000
HEAT_DBPASS=000000
#Password for Keystore heat user. exmaple:000000
HEAT_PASS=000000
#--------------------Zun Config-----------------------##
#Password for Mysql Zun user. exmaple:000000
ZUN_DBPASS=000000
#Password for Keystore Zun user. exmaple:000000
ZUN_PASS=000000
#Password for Mysql Kuryr user. exmaple:000000
KURYR_DBPASS=000000
#Password for Keystore Kuryr user. exmaple:000000
KURYR_PASS=000000
#--------------------Ceilometer Config----------------##
#Password for Gnocchi ceilometer user. exmaple:000000
CEILOMETER_DBPASS=000000
#Password for Keystore ceilometer user. exmaple:000000
CEILOMETER_PASS=000000
#--------------------AODH Config----------------##
#Password for Mysql AODH user. exmaple:000000
AODH_DBPASS=000000
#Password for Keystore AODH user. exmaple:000000
AODH_PASS=000000
#--------------------Barbican Config----------------##
#Password for Mysql Barbican user. exmaple:000000
BARBICAN_DBPASS=000000
#Password for Keystore Barbican user. exmaple:000000
BARBICAN_PASS=000000
（在 openrc.sh 中的配置 compute和controller 基本都一致，只有 INTERFACE_IP 需要填写当前所在主机的IP地址，如图4.2.1）
#将openrc文件传输到compute节点上进行修改
[root@controller ~]# scp /etc/xiandian/openrc.sh compute:/etc/xiandian/openrc.sh
root@compute's password:
openrc.sh
(图4.2.1)
4.3、脚本安装平台
# 脚本中会再次设置selinux 防火墙 等基础环境配置(controller AND compute)
[root@controller ~]# iaas-pre-host.sh
[root@compute ~]# iaas-pre-host.sh
（执行完成后使用 Ctrl + D 重新退出登录即可不需要重启，或者bash一下也行）
# 安装 mysql 服务(controller)
[root@controller ~]# iaas-install-mysql.sh
# 安装 keystone 服务(controller)
[root@controller ~]# iaas-install-keystone.sh
# 安装 glance 服务(controller)
[root@controller ~]# iaas-install-glance.sh
# 安装 nova 服务(controller AND compute)
[root@controller ~]# iaas-install-nova-controller.sh
[root@compute ~]# iaas-install-nova-compute.sh
（验证nova数据库是否安装成功）
[root@controller ~]# nova-manage cell_v2 list_cells
>>>此处出现报错-----请查看目录 5 中，踩坑怎么爬出来的<<<
（验证系统处理器是否支持硬件加速）
egrep -c '(vmx|svm)' /proc/cpuinfo
（1）如果该命令返回一个1或更大的值,说明你的系统支持硬件加速，通常不需要额外的配置。
（2）如果这个指令返回一个0值，说明你的系统不支持硬件加速，你必须配置libvirt取代KVM来使用QEMU。
crudini --set /etc/nova/nova.conf libvirt virt_type qemu
（我这边是0，所有需要执行一下这个命令 开启libvirt）
[root@compute ~]# crudini --set /etc/nova/nova.conf libvirt virt_type qemu
[root@compute ~]# cat /etc/nova/nova.conf | grep virt_type
virt_type = qemu
# 安装 neutron 服务(controller AND compute)
[root@controller ~]# iaas-install-neutron-controller.sh
[root@compute ~]# iaas-install-neutron-compute.sh
#安装 Dashboard 平台(controller)
[root@controller ~]# iaas-install-dashboard.sh
dashboard 安装成功后，就可以打开网址进行登录平台，再设置平台云主机网络即可。
5、踩坑过程
1、在controller 安装nova服务后，进行了 测试 查看nova服务是否安装成功，结果就是出现报错
Pseudo-terminal will not be allocated because stdin is not a terminal.
An unexpected error prevented the server from fulfilling your request. (HTTP 500) (Request-ID: req-6e828d40-3564-42a1-98d6-93de639b0afe)
An error has occurred:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 1654, in main
ret = fn(*fn_args, **fn_kwargs)
File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 1323, in discover_hosts
by_service)
File "/usr/lib/python2.7/site-packages/nova/objects/host_mapping.py", line 248, in discover_hosts
cell_mappings = objects.CellMappingList.get_all(ctxt)
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line 184, in wrapper
result = fn(cls, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/cell_mapping.py", line 137, in get_all
db_mappings = cls._get_all_from_db(context)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 987, in wrapper
with self._transaction_scope(context):
File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 1037, in _transaction_scope
context=context) as resource:
File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 640, in _session
bind=self.connection, mode=self.mode)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 404, in _create_session
self._start()
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 491, in _start
engine_args, maker_args)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 515, in _setup_for_connection
sql_connection=sql_connection, **engine_kwargs)
File "/usr/lib/python2.7/site-packages/debtcollector/renames.py", line 43, in decorator
return wrapped(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/engines.py", line 184, in create_engine
test_conn = _test_connection(engine, max_retries, retry_interval)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/engines.py", line 370, in _test_connection
six.reraise(type(de_ref), de_ref)
File "" , line 2, in reraise
DBConnectionError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on 'controller' ([Errno 111] ECONNREFUSED)") (Background on this error at: http://sqlalche.me/e/e3q8)
看到这报错就懵了，发生了啥？？？看到最后提示说 无法连接controller节点的MySQL服务,查看一下MySQL的状态
[root@controller ~]# systemctl status mariadb
● mariadb.service - MariaDB 10.1 database server
Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Sun 2022-01-30 02:07:27 CST; 3min 41s ago
Process: 15649 ExecStopPost=/usr/libexec/mysql-wait-stop (code=exited, status=0/SUCCESS)
Process: 15644 ExecStart=/usr/libexec/mysqld --basedir=/usr $MYSQLD_OPTS $_WSREP_NEW_CLUSTER (code=exited, status=1/FAILURE)
Process: 15608 ExecStartPre=/usr/libexec/mysql-prepare-db-dir %n (code=exited, status=0/SUCCESS)
Process: 15585 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS)
Main PID: 15644 (code=exited, status=1/FAILURE)
Status: "MariaDB server is down"
Jan 30 02:07:26 controller systemd[1]: Starting MariaDB 10.1 database server...
Jan 30 02:07:26 controller mysql-check-socket[15585]: Socket file /var/lib/mysql/mysql.sock exists.
Jan 30 02:07:26 controller mysql-check-socket[15585]: No process is using /var/lib/mysql/mysql.sock, which means it is a garbage, so it will be removed automatically.
Jan 30 02:07:27 controller mysql-prepare-db-dir[15608]: Database MariaDB is probably initialized in /var/lib/mysql already, nothing is done.
Jan 30 02:07:27 controller mysql-prepare-db-dir[15608]: If this is not the case, make sure the /var/lib/mysql is empty before running mysql-prepare-db-dir.
Jan 30 02:07:27 controller mysqld[15644]: 2022-01-30 2:07:27 139963356006592 [Note] /usr/libexec/mysqld (mysqld 10.1.20-MariaDB) starting as process 15644 ...
Jan 30 02:07:27 controller systemd[1]: mariadb.service: main process exited, code=exited, status=1/FAILURE
Jan 30 02:07:27 controller systemd[1]: Failed to start MariaDB 10.1 database server.
Jan 30 02:07:27 controller systemd[1]: Unit mariadb.service entered failed state.
Jan 30 02:07:27 controller systemd[1]: mariadb.service failed.
完全不知道为啥 MySQL 宕了，通过排查mariadb的日志发现了问题所在
[root@controller ~]# grep 'ERROR' /var/log/mariadb/mariadb.log
2022-01-30 2:04:39 139639024613568 [ERROR] mysqld: Out of memory (Needed 128663552 bytes)
2022-01-30 2:04:39 139639024613568 [ERROR] mysqld: Out of memory (Needed 96485376 bytes)
2022-01-30 2:04:39 139639024613568 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2022-01-30 2:04:39 139639024613568 [ERROR] Plugin 'InnoDB' init function returned error.
2022-01-30 2:04:39 139639024613568 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2022-01-30 2:04:39 139639024613568 [ERROR] Unknown/unsupported storage engine: innodb
2022-01-30 2:04:39 139639024613568 [ERROR] Aborting
2022-01-30 2:05:19 140391508367552 [ERROR] mysqld: Out of memory (Needed 128663552 bytes)
2022-01-30 2:05:20 140391508367552 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2022-01-30 2:05:20 140391508367552 [ERROR] Plugin 'InnoDB' init function returned error.
2022-01-30 2:05:20 140391508367552 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2022-01-30 2:05:20 140391508367552 [ERROR] Unknown/unsupported storage engine: innodb
2022-01-30 2:05:20 140391508367552 [ERROR] Aborting
2022-01-30 2:07:27 139963356006592 [ERROR] mysqld: Out of memory (Needed 128663552 bytes)
2022-01-30 2:07:27 139963356006592 [ERROR] mysqld: Out of memory (Needed 96485376 bytes)
2022-01-30 2:07:27 139963356006592 [ERROR] mysqld: Out of memory (Needed 72351744 bytes)
2022-01-30 2:07:27 139963356006592 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2022-01-30 2:07:27 139963356006592 [ERROR] Plugin 'InnoDB' init function returned error.
2022-01-30 2:07:27 139963356006592 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2022-01-30 2:07:27 139963356006592 [ERROR] Unknown/unsupported storage engine: innodb
2022-01-30 2:07:27 139963356006592 [ERROR] Aborting
居然是因为我的 内存 不够了，查看一下内存，wtf 这是我给的内存？？？？没什么办法 加内存 然后重启mariadb,再 在compute节点中执行一下 nova 服务安装
[root@controller ~]# systemctl restart mariadb
[root@controller ~]# systemctl status mariadb
● mariadb.service - MariaDB 10.1 database server
Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
Active: active (running) since Sun 2022-01-30 02:25:02 CST; 7s ago
Process: 15649 ExecStopPost=/usr/libexec/mysql-wait-stop (code=exited, status=0/SUCCESS)
Process: 16642 ExecStartPost=/usr/libexec/mysql-check-upgrade (code=exited, status=0/SUCCESS)
Process: 16551 ExecStartPre=/usr/libexec/mysql-prepare-db-dir %n (code=exited, status=0/SUCCESS)
Process: 16528 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS)
Main PID: 16611 (mysqld)
Status: "Taking your SQL requests now..."
CGroup: /system.slice/mariadb.service
└─16611 /usr/libexec/mysqld --basedir=/usr
Jan 30 02:25:01 controller systemd[1]: Starting MariaDB 10.1 database server...
Jan 30 02:25:01 controller mysql-check-socket[16528]: Socket file /var/lib/mysql/mysql.sock exists.
Jan 30 02:25:01 controller mysql-check-socket[16528]: No process is using /var/lib/mysql/mysql.sock, which means it is a garbage, so it will be removed automatically.
Jan 30 02:25:01 controller mysql-prepare-db-dir[16551]: Database MariaDB is probably initialized in /var/lib/mysql already, nothing is done.
Jan 30 02:25:01 controller mysql-prepare-db-dir[16551]: If this is not the case, make sure the /var/lib/mysql is empty before running mysql-prepare-db-dir.
Jan 30 02:25:01 controller mysqld[16611]: 2022-01-30 2:25:01 139753844246720 [Note] /usr/libexec/mysqld (mysqld 10.1.20-MariaDB) starting as process 16611 ...
Jan 30 02:25:02 controller systemd[1]: Started MariaDB 10.1 database server.
6、总结
国基的openstack平台给了脚本，基本上没什么需要真正要动的东西，但是想要真正理解这里面的各个服务的功能和关系，排错还是需要多花点时间去 一遍一遍的测试。平台的搭建大概就这些内容，后面有空再写一下后面的内容，这个平台是最基础的，只有平台起来了，容器什么的才能做。想要拿个差不多成绩的话 ，就多练练吧。
如果 有什么问题或者有错误的地方麻烦小伙伴们私信或留言哦~~