From 32fb25d1bd938160c8628d582e82064e26e2aefc Mon Sep 17 00:00:00 2001
From: newrain001 <newrain_wang@163.com>
Date: Tue, 31 Jan 2023 14:08:18 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'os/lvs'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 os/lvs/lvs-dr-real.sh    | 20 ++++++++++++++++++++
 os/lvs/lvs-dr-server.sh  | 30 ++++++++++++++++++++++++++++++
 os/lvs/lvs-nat-real.sh   | 17 +++++++++++++++++
 os/lvs/lvs-nat-server.sh | 25 +++++++++++++++++++++++++
 4 files changed, 92 insertions(+)
 create mode 100644 os/lvs/lvs-dr-real.sh
 create mode 100644 os/lvs/lvs-dr-server.sh
 create mode 100644 os/lvs/lvs-nat-real.sh
 create mode 100644 os/lvs/lvs-nat-server.sh

diff --git a/os/lvs/lvs-dr-real.sh b/os/lvs/lvs-dr-real.sh
new file mode 100644
index 0000000..2e20a1d
--- /dev/null
+++ b/os/lvs/lvs-dr-real.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/bash
+
+VIP=192.168.96.200
+NETMASK=32
+
+case $1 in
+start)
+    ip addr add dev lo $VIP/$NETMASK
+    echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore  #忽略arp广播
+    echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce #匹配精确ip地址回包
+    ;;
+stop)
+    ip addr del dev lo $VIP/$NETMASK
+    echo 0 > /proc/sys/net/ipv4/conf/all/arp_ignore
+    echo 0 > /proc/sys/net/ipv4/conf/all/arp_announce
+    ;;
+*)
+    echo "Usage: $0 {start|stop}"
+    ;;
+esac
diff --git a/os/lvs/lvs-dr-server.sh b/os/lvs/lvs-dr-server.sh
new file mode 100644
index 0000000..42b5aab
--- /dev/null
+++ b/os/lvs/lvs-dr-server.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/bash
+
+# VIP
+VIP=192.168.96.200
+# 真实服务器
+REAL_SERVER=(192.168.96.167 192.168.96.168 192.168.96.170)
+# 真实服务器权重
+WEIGHT=(3 5 15)
+# 调度算法
+SCHEDULER=wrr
+INTERFACE=ens33
+NETMASK=32
+
+case $1 in
+start)
+    ip addr add $VIP/$NETMASK dev $INTERFACE
+    # 设置虚拟服务
+    ipvsadm -A -t $VIP:80 -s $SCHEDULER
+    for i in ${!REAL_SERVER[@]}
+    do
+        ipvsadm -a -t $VIP:80 -r ${REAL_SERVER[$i]}:80 -g -w ${WEIGHT[$i]}
+    done
+    ;;
+stop)
+    ipvsadm -C
+    ;;
+*)
+    echo "Usage: $0 {start|stop}"
+    ;;
+esac
diff --git a/os/lvs/lvs-nat-real.sh b/os/lvs/lvs-nat-real.sh
new file mode 100644
index 0000000..b4c9eac
--- /dev/null
+++ b/os/lvs/lvs-nat-real.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/bash
+
+# 默认网关
+GATEWAY=192.168.96.166
+# 网卡
+INTERFACE=ens33
+
+case $1 in
+start)
+    ip route add default via $GATEWAY dev $INTERFACE
+    ;;
+stop)
+    ip route del default via $GATEWAY dev $INTERFACE
+    ;;
+*)
+    echo "Usage: $0 {start|stop}"
+esac
diff --git a/os/lvs/lvs-nat-server.sh b/os/lvs/lvs-nat-server.sh
new file mode 100644
index 0000000..d979df7
--- /dev/null
+++ b/os/lvs/lvs-nat-server.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/bash
+
+VIP=10.9.29.110
+REAL_SERVER=(192.168.96.167 192.168.96.168)
+WEIGHT=(1 1)
+SCHEDULER=wrr
+
+case $1 in
+start)
+    ipvsadm -A -t $VIP:80 -s $SCHEDULER
+    echo "1" > /proc/sys/net/ipv4/ip_forward
+    # 设置虚拟服务
+    for i in ${!REAL_SERVER[@]}
+    do
+        ipvsadm -a -t $VIP:80 -r ${REAL_SERVER[$i]}:80 -m -w ${WEIGHT[$i]}
+    done
+    ;;
+stop)
+    ipvsadm -C
+    echo "0" > /proc/sys/net/ipv4/ip_forward
+    ;;
+*)
+    echo "Usage: $0 {start|stop}"
+    ;;
+esac
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