增加keepalived配置文件

etc/keepalived/keepalived.conf

@@ -0,0 +1,54 @@
+! Configuration File for keepalived
+
+global_defs {
+   notification_email {
+     root@localhost
+   }
+   notification_email_from kaadmin@localhost
+   smtp_server 127.0.0.1
+   smtp_connect_timeout 30
+   router_id LVS_DEVEL
+}
+
+vrrp_instance VI_1 {
+    state MASTER
+    interface eth0
+    virtual_router_id 51
+    priority 100
+    advert_int 1
+    authentication {
+        auth_type PASS
+        auth_pass 1111
+    }
+    virtual_ipaddress {
+        172.20.0.119
+    }
+}
+
+virtual_server 172.20.0.119 80{
+    delay_loop 6
+    lb_algo loadbalance
+    lb_kind DR
+    nat_mask 255.255.255.0
+    persistence_timeout 0
+    protocol TCP
+
+    real_server 172.20.0.113 80{
+        weight 1
+        TCP_CHECK {
+            connect_timeout 3
+        }
+    }
+    real_server 172.20.0.114 80{
+        weight 1
+        TCP_CHECK {
+            connect_timeout 3
+        }
+    }
+    real_server 172.20.0.115 80{
+        weight 1
+        TCP_CHECK {
+            connect_timeout 3
+        }
+    }
+}