自动化kolla-ansible部署ubuntu20.04+openstack-victoria之镜像制作centos7.8-15
自动化kolla-ansible部署ubuntu20.04+openstack-victoria之镜像制作centos7.8-15
欢迎加QQ群：1026880196 进行交流学习
制作OpenStack Centos 7.8 64位镜像
#下载centos 7.8
http://mirror.nsc.liu.se/centos-store/7.8.2003/isos/x86_64/CentOS-7-x86_64-Minimal-2003.iso
#硬件准备
物理机一台：要求支持硬件虚拟化，系统推荐centos7.8桌面版
1. 安装kvm环境
yum install -y kvm virt-* libvirt bridge-utils qemu-img qemu-kvm-tools libvirt libguestfs-tools dejavu-lgc-sans-fonts
2. 创建kvm虚拟机这里省略....见自动化kolla-ansible部署ubuntu20.04+openstack-victoria之镜像制作centos6.5-14
虚拟机分配5G 网卡选择桥接模式 只分一个/目录
#虚拟机系统下操作
3. 使用国内阿里源
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
sed -i '/aliyuncs.com/d' /etc/yum.repos.d/*.repo
yum makecache fast
4. 虚拟机安装常用工具
yum install vim wget net-tools ntpdate gcc -y
5. 删除70-persistent-cd.rules和70-persistent-net.rules文件
rm -rf /etc/udev/rules.d/70*
6.禁用zeroconf路由功能
echo 'NOZEROCONF=yes'>/etc/sysconfig/network
7. 安装cloud-init
yum install acpid cloud-init cloud-utils jq parted qemu-guest-agent zip unzip -y
8. cloud-int,开启root密码登录#
sed -i 's/disable_root: 1/disable_root: 0/g' /etc/cloud/cloud.cfg
sed -i 's/ssh_pwauth: 0/ssh_pwauth: 1/g' /etc/cloud/cloud.cfg
9. ssh配置
sed -i 's/^PasswordAu.*$/PasswordAuthentication yes/' /etc/ssh/sshd_config
sed -i 's/^GSSAPIAuthentication yes/GSSAPIAuthentication no/' /etc/ssh/sshd_config
sed -i 's/^#UseDNS.*$/UseDNS no/' /etc/ssh/sshd_config
systemctl restart sshd
systemctl status sshd
10. 开机启动设置
systemctl enable acpid cloud-init qemu-guest-agent
11. 修改配置文件vim /etc/cloud/cloud.cfg ，在cloud_init_modules 下面增加:
- resolv-conf
12. 配置内核 让实例启动输出日志 (#欢迎加QQ群：1026880196 进行交流学习)
vim /etc/default/grub
GRUB_CMDLINE_LINUX="crashkernel=auto console=ttyS0,115200n8"
GRUB_CMDLINE_LINUX="crashkernel=auto rhgb quiet console=ttyS0,115200n8"
13. 更新保存 (#欢迎加QQ群：1026880196 进行交流学习)
grub2-mkconfig -o /boot/grub2/grub.cfg
14. 编辑网卡信息
sed -i '/HWADDR/d' /etc/sysconfig/network-scripts/ifcfg-eth*
sed -i '/UUID/d' /etc/sysconfig/network-scripts/ifcfg-eth*
rm -rf /etc/udev/rules.d/70-persistent-net.rules
rm -rf /etc/udev/rules.d/70-persistent-cd.rules
>/etc/udev/rules.d/7*.rules
15. 禁用selinux
sed -i '/^SELINUX=.*/c SELINUX=disabled' /etc/selinux/config
sed -i 's/^SELINUXTYPE=.*/SELINUXTYPE=disabled/g' /etc/selinux/config
grep --color=auto '^SELINUX' /etc/selinux/config
setenforce 0
16. 关闭防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service
firewall-cmd --state
17. 清理 (#欢迎加QQ群：1026880196 进行交流学习)
yum clean all
rm -rf /tmp/*
rm -rf /root/*
rm -f /var/log/wtmp /var/log/btmp
>/var/log/cloud-init.log
18. 清空历史记录并关机
history -c
poweroff
19. 查看kvm所有虚拟机
virsh list --all
20. 执行清理任务
virt-sysprep -d CentOS7.8_x86_64bit
21. 压缩镜像
cd kvm/img/
virt-sparsify --compress /var/lib/libvirt/images/CentOS7.8_x86_64bit.qcow2 CentOS7.8_x86_64bit.qcow2
22. 拷贝镜像到controller1上
cd
scp -p kvm/img/CentOS7.8_x86_64bit.qcow2 controller:/root
