为openstack 制作CentOS镜像

  1. 首先下载CentOS安装文件:http://mirrors.tuna.tsinghua.edu.cn/centos/6.4/isos/x86_64/
  2. 创建空的硬盘:kvm-image create -f raw centos6.4.img 5G

  3. 用安装文件进行引导:

    kvm -m 1024 -cdrom CentOS-6.4-x86_64-minimal.iso -drive file=centos6.4.img -boot d -net nic -net tap -nographic -vnc :11

  4. vnc连接,最好用UltraVNC,不用vncviewer,否则也许会出现一闪而过的情况。

    连接后进行安装,安装时有config network的按钮,我将ipv4ipv6都设置成了auto connection

  5. 安装后再次启动镜像,这时不用安装镜像来驱动了:

    kvm -m 1024 -drive file=centos6.4.img -boot c -net nic -net tap -nographic -vnc :11

  6. 启动ssh:chkconfig sshd on

  7. 在网络接口配置里注释掉#HWADDR这一行,启用dhcp

  8. 注射sshKey。在rc.local文件(自动加载)中加入注射的脚本,放到touch一行前:
    # vi /etc/rc.local
    ...
    mkdir -p /root/.ssh
    echo >> /root/.ssh/authorized_keys
    curl -m 10 -s http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key
    | grep 'ssh-rsa' >> /root/.ssh/authorized_keys
    chmod 700 ~/.ssh
    chmod 600 ~/.ssh/authorized_keys
    echo "AUTHORIZED_KEYS:"
    echo "--------------------"
    cat /root/.ssh/authorized_keys
    echo "--------------------"
    ...
    touch ...

     

  9. 配置ssh无密码登录:
    # vi /etc/ssh/sshd_config
    ...
    RSAAuthentication yes
    PubkeyAuthentication yes
    PermitRootLogin without-password
    ChallengeResponseAuthentication no
    PasswordAuthentication no
    UsePAM no

     

  10. 关闭防火墙和selinux:

    service iptables stop && chkconfig iptables off
    service ip6tables stop && chkconfig ip6tables off

     

  11. 删除已经生成的网络规则,并关机:

    rm -rf /etc/udev/rules.d/70-persistent-net.rules
    shutdown -h now

    注意:不能重启因为重启后那个规则文件又会生成了

  12. 上传镜像:
    glance add name=”centos6.4” is_public=true container_format=ovf disk_format=raw < centos6.4.img

     

  13. 上传成功之后,使用nova list查看镜像,记住id号,然后创建虚拟机

    # nova boot --flavor 1 --key_name key1 --image e180b9a7-32a6-47b0-8f33-d557b5e54937 centos6.4A

     

  14. 设置floating ip:
    nova floating-ip-create
    nova add-floating-ip centos6.4A 10.109.254.41

     

    参考资料:

    http://www.vpsee.com/2012/02/create-centos-kvm-image-for-openstack-nova/

    http://docs.openstack.org/trunk/openstack-compute/admin/content/manually-creating-qcow2-images.html

    http://bbs.chinaunix.net/thread-3729514-1-1.html

posted @ 2013-03-28 10:33  cubika  阅读(913)  评论(0编辑  收藏  举报