4.10. Configuring the virtual IP management resource agent

Procedure

1. Create the aliasip resource by including an unused internal IP address and the CIDR block:

   # pcs resource create aliasip gcp-vpc-move-vip alias_ip=UnusedIPaddress/CIDRblock

   Example:

   [root@rhel81-node-01 ~]# pcs resource create aliasip gcp-vpc-move-vip alias_ip=10.10.10.200/32

2. Create an IPaddr2 resource for managing the IP on the node:

   # pcs resource create vip IPaddr2 nic=interface ip=AliasIPaddress cidr_netmask=32

   Example:

   [root@rhel81-node-01 ~]# pcs resource create vip IPaddr2 nic=eth0 ip=10.10.10.200 cidr_netmask=32

3. Group the network resources under vipgrp:

   # pcs resource group add vipgrp aliasip vip

Verification

1. Verify the active resources and under the vipgrp group:

   # pcs status

2. Verify the movable resources across the nodes:

   # pcs resource move vip Node

   Example:

   [root@rhel81-node-01 ~]# pcs resource move vip rhel81-node-03

3. Verify if the vip successfully started on a different node:

   # pcs status

Procedure

1. Create a secondary subnet address range:

   # gcloud compute networks subnets update SubnetName --region RegionName --add-secondary-ranges SecondarySubnetName=SecondarySubnetRange

   Example:

   # gcloud compute networks subnets update range0 --region us-west1 --add-secondary-ranges range1=10.10.20.0/24

2. Create the aliasip resource with an unused internal IP address in the secondary subnet address range and the CIDR block:

   # pcs resource create aliasip gcp-vpc-move-vip alias_ip=UnusedIPaddress/CIDRblock

   Example:

   [root@rhel81-node-01 ~]# pcs resource create aliasip gcp-vpc-move-vip alias_ip=10.10.20.200/32

3. Create an IPaddr2 resource for managing the IP on the node:

   # pcs resource create vip IPaddr2 nic=interface ip=AliasIPaddress cidr_netmask=32

   Example:

   [root@rhel81-node-01 ~]# pcs resource create vip IPaddr2 nic=eth0 ip=10.10.20.200 cidr_netmask=32

4. Group the network resources under vipgrp:

   # pcs resource group add vipgrp aliasip vip

Verification

1. Verify that the active resources are under the vipgrp group:

   # pcs status

2. Verify that the movable resources across different nodes:

   # pcs resource move vip Node

   Example:

   [root@rhel81-node-01 ~]# pcs resource move vip rhel81-node-03

3. Verify that the vip successfully started on a different node:

   # pcs status