4、虚拟机单机、集群的克隆、删除脚本（以初始化好的虚拟机为模板）

摘自：https://blog.51cto.com/mfc001/6408229

虚拟机克隆、删除脚本

[root@ubunt ~]# cat clone.sh 
#!/bin/bash
#
#. /etc/init.d/functions   （如果是ubuntu，注释此行）

Red="\e[1;31m"
Purple="\e[1;35m"
Green="\e[1;32m"
Blue="\e[1;36m"
Yellow="\e[1;33m"
End="\e[0m"

#克隆集群
clone() {
    lists=`virsh list --all |awk '/.*template.*/{print $2}'`
    echo "模板清单:"
    echo "<-------------------->"
    for x in  $lists;do
        echo -e "$Purple$x$End"
    done
    echo "<-------------------->"
    read -p "请输入克隆模板: " template
    #read -p "请输入克隆模板ip: " ip
    read -p "请输入集群名称: "  name
    read -p "请输入节点数: "    node
    read -p "请输入ip起点x(y.y.y.x): " num
    for  ((i=0;i<$node;i++)) ;do
         let n=$i+1
         arg[$i]="$name-0$n"
         virt-clone -o $template -n ${arg[$i]}  -f /var/lib/libvirt/images/${arg[$i]}.qcow2 || continue
         virsh start ${arg[$i]} ||  continue
         sleep 30
         echo $num ${arg[$i]}
     if [[ $template =~ "ubuntu" ]];then
             ssh [email protected] "sed -i -r 's@(^[[:space:]]+- 10.0.0.)[0-9]+@\1$num@' /etc/netplan/00-installer-config.yaml;hostnamectl set-hostname ${arg[$i]} ;reboot"
         else 
             ssh [email protected] "sed -i -r 's@(^IPADDR=).*@\1192.168.122.$num@' /etc/sysconfig/network-scripts/ifcfg-eth0;hostnamectl set-hostname ${arg[$i]} ;reboot"         
         fi 
         let num=$num+1
    done
}

#删除集群
delete(){
    lists1=`virsh  list --all | awk 'NR!=1{print $2}'|sed -nr "s/^(.*)-[0-9]+$/\1/p" |uniq`
    echo "<-------------------->"
    for n in $lists1 ;do
    echo -e "$Purple$n$End"
    done
    echo "<-------------------->"
    dname=1
    echo $dname
    read -p "请输入集群名称:"  dname
    echo $danme
    for i in `virsh list --all| awk -v dname=$dname '$0 ~ dname{print $2}'`;do
    echo -e  "$Red$i$End"
    if [[ $i =~ "template" ]]; then
    continue;    
    elif [[ $dname ==  "" ]];then
    action "删除失败" false
        exit
    else
        virsh destroy $i &> /dev/null
        virsh  undefine --remove-all-storage $i &> /dev/null && action "删除成功" true  || action "删除失败" false 
    fi
    done
}

#单节点启动
nodestart(){
    echo "<-------------------->"
    for m in `virsh  list --all | egrep ".*off$"|awk '{print $2}'` ;do
        echo -e "$Purple$m$End"
    done
    echo "<-------------------->"
    read -p "请输入节点名称:"  startnode
    virsh start $startnode &> /dev/null &&  action "$startnode 节点启动成功" true || action "$startnode 节点启动失败" false
}

#单节点重启
noderestart(){
    echo "<-------------------->"
    for o in `virsh  list --all | egrep ".*running$"|awk '{print $2}'` ;do
        echo -e "$Purple$o$End"
    done
    echo "<-------------------->"
    read -p "请输入节点名称:"  restartnode
    virsh reboot $restartnode &> /dev/null &&  action "$restartnode 节点重启成功" true || action "$restartnode 节点重启失败" false
}

#单节点关机
nodestop(){
    echo "<-------------------->"
    for p in `virsh  list --all | egrep ".*running$"|awk '{print $2}'` ;do
        echo -e "$Purple$p$End"
    done
    echo "<-------------------->"
    read -p "请输入节点名称:"  stopnode
    virsh shutdown $stopnode &> /dev/null &&  action "$stopnode 节点关机成功" true || action "$stopnode 节点关机失败" false
}

#启动集群
clusterstart(){
    lists2=`virsh  list --all | awk 'NR!=1{print $2}'|sed -nr "s/^(.*)-[0-9]+$/\1/p"|sort -nr|uniq`
    echo "<-------------------->"
    for q in $lists2 ;do
        echo -e "$Purple$q$End"
    done
    echo "<-------------------->"
    read -p "请输入集群名称:"  dname
    for i1 in `virsh list --all| awk -v dname=$dname '$0 ~ dname{print $2}'`;do
    echo -e  "$Red$i1$End"
    virsh start $i1 &> /dev/null &&  action "$i1 节点启动成功" true || action "$i1 节点启动失败" false
    done

}

#关闭集群
clusterstop(){
    lists3=`virsh  list --all | awk 'NR!=1{print $2}'|sed -nr "s/^(.*)-[0-9]+$/\1/p" |sort -nr|uniq`
    echo "<-------------------->"
    for r in $lists3 ;do
        echo -e "$Purple$r$End"
    done
    echo "<-------------------->"
    read -p "请输入集群名称:"  dname
    for i2 in `virsh list --all| awk -v dname=$dname '$0 ~ dname{print $2}'`;do
    echo -e  "$Red$i2$End"
    virsh shutdown $i2 &> /dev/null &&  action "$i2 节点关闭成功" true || action "$i2 节点关闭失败" false
    done
}

#集群重启
clusterrestart(){
    lists4=`virsh  list --all | awk 'NR!=1{print $2}'|sed -nr "s/^(.*)-[0-9]+$/\1/p" | sort -nr|uniq`
    echo "<-------------------->"
    for s in $lists4 ;do
        echo -e "$Purple$s$End"
    done
    echo "<-------------------->"
    read -p "请输入集群名称:"  dname
    for i3 in `virsh list --all| awk -v dname=$dname '$0 ~ dname{print $2}'`;do
    echo -e  "$Red$i3$End"
    virsh reboot $i3 &> /dev/null &&  action "$i3 节点重启成功" true || action "$i3 节点重启失败" false
    done

}


#单机克隆
clone_Single(){
    echo "<-------------------->"
    for p in `virsh  list --all |awk '{print $2}'` ;do
        echo -e "$Purple$p$End"
    done
    echo "<-------------------->"
    read -p "请输入克隆模板: " templatecs
    #read -p "请输入克隆模板ip: " ip
    read -p "请输入名称: " csname
    read -p "请输入ipx(y.y.y.x): " num1
         virt-clone -o $templatecs -n $csname  -f /var/lib/libvirt/images/$csname.qcow2 || continue
         virsh start $csname ||  continue
         sleep 60
         echo $csname
         if [[ $templatecs =~ "ubuntu" ]];then
             ssh [email protected] "sed -i -r 's@(^[[:space:]]+- 10.0.0.)[0-9]+@\1$num1@' /etc/netplan/00-installer-config.yaml;hostnamectl set-hostname $csname ;reboot"
         else
             ssh [email protected] "sed -i -r 's@(^IPADDR=).*@\1192.168.10.$num1@' /etc/sysconfig/network-scripts/ifcfg-eth0;hostnamectl set-hostname $csname ;reboot"
         fi
}

#单机删除
delete_Single(){
    echo "<-------------------->"
    for p in `virsh  list --all |awk '{print $2}'` ;do
        echo -e "$Purple$p$End"
    done
    echo "<-------------------->"
    read -p "请输入机器名称:"  dsname
    echo $dsname
    if [[ $i =~ "template" ]]; then
        exit;
    elif [[ $dsname ==  "" ]];then
        action "删除失败" false
        exit
    else
        virsh  destroy $dsname &> /dev/null
        virsh  undefine --remove-all-storage $dsname &> /dev/null && action "删除成功" true  || action "删除失败" false
    fi

}

#创建快照
create_snapshot(){
    echo "<-------------------->"
    for p in `virsh  list --all |awk '{print $2}'` ;do
        echo -e "$Purple$p$End"
    done
    echo "<-------------------->"
    read -p "请选择你要创建快照的机器:" shname
    virsh snapshot-list $shname
    read -p "请输入创建的快照名称:" createsnap
    virsh snapshot-create-as $shname $createsnap  && echo -e "$Blue 创建成功  $End"  || echo -e "$Red 创建失败 $End"
    virsh snapshot-list $shname
}


#删除快照
delete_snapshot(){
    echo "<-------------------->"
    for p in `virsh  list --all |awk '{print $2}'` ;do
        echo -e "$Purple$p$End"
    done
    echo "<-------------------->"
    read -p "请输入你要删除快照的机器:" dshname
    virsh snapshot-list $dshname
    read -p "请输入删除的快照名称:" deletesnap
    virsh snapshot-delete $dshname $deletesnap && echo -e "$Blue 删除成功  $End"  || echo -e "$Red 删除失败 $End"
    virsh snapshot-list $dshname
}


#恢复快照
recover_snapshot(){
    echo "<-------------------->"
    for p in `virsh  list --all |awk '{print $2}'` ;do
        echo -e "$Purple$p$End"
    done
    echo "<-------------------->"
    read -p "请输入你要恢复快照的机器:" rshname
    virsh snapshot-list $rshname
    read -p "请输入恢复的快照名称:" recoversnap
    virsh snapshot-revert $rshname  $recoversnap  && echo -e "$Blue 恢复成功  $End"  || echo -e "$Red 恢复失败 $End"
    virsh snapshot-list $rshname
}


virsh list --all
PS3="请按要求输入操作选项:"
select lists in  克隆集群 删除集群 启动集群 关闭集群 集群重启  单节点启动 单节点关机  单节点重启   克隆单机  单机删除 创建快照  删除快照  恢复快照   退出;do
case $REPLY in     #  1       2       3        4        5          6          7           8           9         10       11        12        13
1)
    echo -e "$Blue$lists$End"
    clone
    ;;
2)  
    echo -e "$Red$lists$End"
    delete
    ;;
3)  
    echo -e "$Green$lists$End"
    clusterstart
    ;;
4)
    echo -e "$Red$lists$End"
    clusterstop
    ;;
5)
    echo -e "$Yellow$lists$End"
    clusterrestart
    ;;
6)
    echo -e "$Green$lists$End"
    nodestart
    ;;
7)
    echo -e "$Red$lists$End"
    nodestop
    ;;
8)
    echo -e "$Yellow$lists$End"
    noderestart
    ;;

9)
    echo -e "$Blue$lists$End"
    clone_Single
    ;;
10)
    echo -e "$Blue$lists$End"
    delete_Single
    ;;
11)
    echo -e "$Blue$lists$End"
    create_snapshot
    ;;
12)
    echo -e "$Blue$lists$End"
    delete_snapshot
    ;;
13)
    echo -e "$Blue$lists$End"
    recover_snapshot
    ;;
14)
    echo -e "$Blue$lists$End"
    exit
    ;;
*)
    echo -e "$Red输入错误$End"
    ;;
esac
done