#openstack centos6 centos7 kvm镜像制作
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#openstack centos6 centos7 kvm 镜像制作
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#openstack centos6 centos7 镜像制作 #################################### #KVM环境 yum install -y kvm virt-* libvirt bridge-utils qemu-img qemu-kvm-tools #创建KVm虚拟机 ########centos7 mini, ks kvname=centos6.9 ksname=c6op.ks ISO=CentOS-6.9-x86_64-bin-DVD1.iso # kvname=centos7.4 # ksname=c7op.ks # ISO=CentOS-7-x86_64-DVD-1708.iso qemu-img create -f qcow2 /kvm/img/$kvname.qcow2 2G virt-install \\ --name $kvname \\ --ram 1024 --vcpus 1 \\ --os-type linux --os-variant rhel6 --arch=x86_64 \\ --network network=default,model=virtio \\ --disk path=/kvm/img/$kvname.qcow2,format=qcow2 \\ --location /kvm/iso/$ISO \\ --console pty,target_type=serial \\ --initrd-inject=/kvm/iso/$ksname \\ --extra-args="console=ttyS0,115200n8 serial ks=file:/$ksname" \\ --graphics none #安装完成后,按键Ctrl + ] 退出kvm虚拟机 virsh destroy $kvname #强制关闭电源 cp /kvm/img/$kvname.qcow2{,.bak} #备份 ls -hl /kvm/img/$kvname* virsh start $kvname #开启 virsh console $kvname #登录 # #KS文件实例 # http://elven.vip/ks/openstack/c6op.ks # http://elven.vip/ks/openstack/c7op.ks #################################### #kvm 虚拟机配置 #更改root密码 echo 123321|passwd root --stdin # #时区配置# # #centos7 # rm -f /etc/localtime # ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime # ll /etc/localtime # #centos6 # echo \'ZONE="Asia/Shanghai"\'>/etc/sysconfig/clock #使用阿里源# [[ `uname -r` == *el6* ]] && { Ve=6; } || { Ve=7; } curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-$Ve.repo curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-$Ve.repo sed -i \'/aliyuncs.com/d\' /etc/yum.repos.d/*.repo #删除阿里内网地址# yum clean all #安装 yum install -y acpid cloud-init cloud-utils jq parted qemu-guest-agent [[ `uname -r` == *el6* ]] && { yum install -y dracut-modules-growroot; } #cloud-int,开启root密码登录# sed -i \'s/disable_root: 1/disable_root: 0/g\' /etc/cloud/cloud.cfg sed -i \'s/ssh_pwauth: 0/ssh_pwauth: 1/g\' /etc/cloud/cloud.cfg #sed -i \'s/name: centos/name: root/g\' /etc/cloud/cloud.cfg #grub启动项添加console=ttyS0,115200n8,安装kvm时已配置# echo \'NETWORKING=yes NOZEROCONF=yes\'>/etc/sysconfig/network #ssh配置# sed -i \'s/^PasswordAu.*$/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 [[ $Ve = 6 ]] && { service sshd restart; } || { systemctl restart sshd; } #开机启动# [[ $Ve = 6 ]] && { chkconfig acpid on chkconfig cloud-init on chkconfig qemu-ga on sed -i \'s/timeout=5/timeout=2/g\' /boot/grub/grub.conf } || { systemctl enable acpid cloud-init qemu-guest-agent sed -i \'s/timeout=5/timeout=2/g\' /boot/grub2/grub.cfg } #根据需求,安装配置其它服务# #清理# yum clean all rm -rf /tmp/* rm -rf /root/* rm -f /var/log/wtmp /var/log/btmp >/var/log/cloud-init.log #删除网卡信息# sed -i \'/HWADDR/d\' /etc/sysconfig/network-scripts/ifcfg-eth* sed -i \'/UUID/d\' /etc/sysconfig/network-scripts/ifcfg-eth* #>/etc/sysconfig/network-scripts/ifcfg-eth* >/etc/udev/rules.d/7*.rules #清空历史记录 history -c poweroff #关机 #################################### #yum install libvirt libguestfs-tools #virsh destroy kvm #显示kvm所有虚拟机 virsh list --all #执行清理任务 virt-sysprep -d $kvname #压缩 #cd /kvm/img/ virt-sparsify --compress $kvname.qcow2 $kvname-.qcow2 ls -hl /kvm/img/$kvname* #################################### # #拷贝镜像 #上传glance镜像 #centos7 openstack image create "centos7.4" \\ --file centos7.4-.qcow2 \\ --disk-format qcow2 --container-format bare \\ --property hw_qemu_guest_agent=yes \\ --public # #centos6 openstack image create "centos6.9" \\ --file centos6.9-.qcow2 \\ --disk-format qcow2 --container-format bare \\ --property hw_qemu_guest_agent=yes \\ --public #################################### #kvm还原 virsh destroy $kvname rm -f $kvname.qcow2 $kvname-.qcow2 cp $kvname.qcow2.bak $kvname.qcow2 ls -hl $kvname* virsh start $kvname virsh console $kvname ####################################
#补充说明
#参数 --property hw_qemu_guest_agent=yes 是启动qemu-ga功能,重置密码使用
#重置密码方法:
#1、在计算节点
virsh list
virsh set-user-password instance-00000028 --user root --password 123123
#2、在控制节点,按提示输入2次密码
nova set-password vm-ID
####################################
#提示
#openstack创建虚拟机后,重启VM根目录才自动扩容
lsblk #查看分区
#制作的镜像分享
#链接: https://pan.baidu.com/s/1boUXeFH 密码: wcq7
####################################
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