From 429ae52e270b0c492875d6de28ae957d0d856f2a Mon Sep 17 00:00:00 2001
From: root <root@localhost.localdomain>
Date: Tue, 16 Aug 2022 00:04:29 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BA=A4=E5=AE=89=E8=A3=85=E6=9C=8D?=
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---
 control/KVMInstall.sh | 69 +++++++++++++++++++++++++++++++++++++++++++
 control/VMHost.sh     |  2 +-
 control/VMTemplate.sh |  8 +++--
 template/template.xml |  4 +--
 4 files changed, 77 insertions(+), 6 deletions(-)
 create mode 100644 control/KVMInstall.sh

diff --git a/control/KVMInstall.sh b/control/KVMInstall.sh
new file mode 100644
index 0000000..c1d170c
--- /dev/null
+++ b/control/KVMInstall.sh
@@ -0,0 +1,69 @@
+#!/usr/bin/bash
+
+<<!
+editor : NewRain
+date   : 2022-08-15
+for kvm service install
+!
+
+INTERFACE_NAME="ens33"
+
+color(){
+    unset c
+    declare -A c=([Error]=31 [Success]=32 [Warning]=33 [Info]=34)
+    #echo -e "\033[${c[$1]}m[`date +%T`]($1)  $2\033[0m"
+    printf "\033[${c[$1]}m%-10s%-10s %-30s\033[0m\n" "[`date +%T`]" "($1)" "$2"
+    sleep 0.5
+}
+
+clean(){
+    color Info "开始进行环境清理"
+    yum remove `rpm -qa | egrep 'qemu|virt|kvm'` -y
+    rm -rf /var/lib/libvirt  /etc/libvirt/
+}
+
+upgrade(){
+    if [ -f /etc/centos-release ];then
+        color Success "检测到系统为centos"
+        level=$(awk '{print $4}' /etc/centos-release | awk -F'.' '{print $2}')
+        if [ $level -le 7 ];then
+            color Warning "准备进行内核升级，ctrl^c退出"
+            yum upgrade
+            reboot
+        else
+            color Success "系统版本符合要求，开始进行kvm安装"
+        fi
+    else
+        color Error "请使用centos系统运行次脚本"
+        exit 1
+    fi
+}
+
+main(){
+    color Info "开始安装KVM服务"
+    yum install -y librbd1-devel qemu-kvm libvirt virt-manager virt-install libguestfs-tools
+    cat > /etc/sysconfig/network-scripts/ifcfg-br0 <<EOF
+TYPE=Bridge
+NAME=br0
+DEVICE=br0
+ONBOOT="yes"
+BOOTPROTO=static
+IPADDR=$(ip a show dev ${INTERFACE_NAME} | awk '/\<inet\>/{print $2}' | awk -F'/' '{print $1}')
+GATEWAY=$(ip r show dev ${INTERFACE_NAME} | awk '/default/{print $3}')
+PREFIX=$(ip a show dev ${INTERFACE_NAME} | awk '/\<inet\>/{print $2}' | awk -F'/' '{print $2}')
+DNS1=114.114.114.114
+DNS2=8.8.8.8
+EOF
+    cat > /etc/sysconfig/network-scripts/ifcfg-${INTERFACE_NAME} <<EOF
+NAME=${INTERFACE_NAME}
+DEVICE=${INTERFACE_NAME}
+ONBOOT=yes
+BRIDGE=br0
+EOF
+    echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf && sysctl -p
+    systemctl enable libvirtd --now
+    color Success "安装并启动完成"
+    systemctl restart network
+}
+
+main
\ No newline at end of file
diff --git a/control/VMHost.sh b/control/VMHost.sh
index 637cb3d..047ce23 100644
--- a/control/VMHost.sh
+++ b/control/VMHost.sh
@@ -111,7 +111,7 @@ qemu-img create -f qcow2 -b ${TEMPLATE_PATH}/${TEMPLATE_IMAGE_NAME} ${VDISKS_PAT
 guestmount -a ${VDISKS_PATH}/${VM_HOSTNAME}.qcow2 -m /dev/centos/root ${MOUNT_PATH}
 /usr/bin/cp -f ${TEMPLATE_PATH}/${TEMPLATE_NETWORK_NAME} ${MOUNT_PATH}/etc/sysconfig/network-scripts/ifcfg-eth0
 sed -ri "s/^IPADDR.*/IPADDR=${KVM_ADDRESS}/" ${MOUNT_PATH}/etc/sysconfig/network-scripts/ifcfg-eth0
-sed -ri "s/^GATEWAY.*/GATEWAY=${KVM_ADDRESS%.*}.1/" ${MOUNT_PATH}/etc/sysconfig/network-scripts/ifcfg-eth0
+sed -ri "s/^GATEWAY.*/GATEWAY=${KVM_ADDRESS%.*}.2/" ${MOUNT_PATH}/etc/sysconfig/network-scripts/ifcfg-eth0
 sed -ri "s/.*/${VM_HOSTNAME}/" ${MOUNT_PATH}/etc/hostname
 guestunmount ${MOUNT_PATH}
 
diff --git a/control/VMTemplate.sh b/control/VMTemplate.sh
index 27a1050..db9010f 100644
--- a/control/VMTemplate.sh
+++ b/control/VMTemplate.sh
@@ -1,8 +1,10 @@
 #!/usr/bin/bash
 
-# editor : NewRain
-# date   : 2020-08-14
-# for kvm virtual machine template
+<<!
+editor : NewRain
+date   : 2022-08-14
+for kvm virtual machine
+!
 
 MAIN_PATH=$(cd $(dirname $0); cd ..; pwd)
 IMAGE_PATH=/tmp/CentOS-7-x86_64-Minimal-2009.iso
diff --git a/template/template.xml b/template/template.xml
index cad4750..d5b65ae 100644
--- a/template/template.xml
+++ b/template/template.xml
@@ -73,8 +73,8 @@ or other application using the libvirt API.
     <controller type='virtio-serial' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
     </controller>
-    <interface type='network'>
-      <source network='default'/>
+    <interface type='bridge'>
+      <source bridge='br0'/>
       <model type='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
     </interface>