11. Expansion Guide

11.1. Edit NETWORK File

The below file is the inventory template of deployment nodes:

“./deploy/conf/hardware_environment/huawei-pod1/network.yml”

You need to edit the network.yml which you had edited the first deployment.

NOTE: External subnet’s ip_range should exclude the IPs those have already been used.

11.2. Edit DHA File

The below file is the inventory template of deployment nodes:

“./deploy/conf/hardware_environment/expansion-sample/hardware_cluster_expansion.yml”

You can write your own IPMI IP/User/Password/Mac address/roles reference to it.

  • name – Host name for deployment node after installation.
  • ipmiIP – IPMI IP address for deployment node. Make sure it can access from Jumphost.
  • ipmiUser – IPMI Username for deployment node.
  • ipmiPass – IPMI Password for deployment node.
  • mac – MAC Address of deployment node PXE NIC .

Set TYPE/FLAVOR and POWER TOOL

E.g.

TYPE: baremetal
FLAVOR: cluster
POWER_TOOL: ipmitool

Set ipmiUser/ipmiPass and ipmiVer

E.g.

ipmiUser: USER
ipmiPass: PASSWORD
ipmiVer: '2.0'

Assignment of roles to servers

E.g. Only increase one compute node

hosts:
   - name: host6
     mac: 'E8:4D:D0:BA:60:45'
     interfaces:
        - eth1: '08:4D:D0:BA:60:44'
     ipmiIp: 172.16.131.23
     roles:
       - compute

E.g. Increase two compute nodes

hosts:
   - name: host6
     mac: 'E8:4D:D0:BA:60:45'
     interfaces:
        - eth1: '08:4D:D0:BA:60:44'
     ipmiIp: 172.16.131.23
     roles:
       - compute

   - name: host6
     mac: 'E8:4D:D0:BA:60:78'
     interfaces:
        - eth1: '08:4D:56:BA:60:83'
     ipmiIp: 172.16.131.23
     roles:
       - compute

11.2.1. Start Expansion

  1. Edit network.yml and dha.yml file

    You need to Edit network.yml and virtual_cluster_expansion.yml or hardware_cluster_expansion.yml. Edit the DHA and NETWORK envionment variables. External subnet’s ip_range and management ip should be changed as the first 6 IPs are already taken by the first deployment.

E.g.

--- network.yml     2017-02-16 20:07:10.097878150 +0800
+++ network-expansion.yml   2017-05-03 10:01:34.537379013 +0800
@@ -38,7 +38,7 @@
 ip_settings:
   - name: mgmt
     ip_ranges:
-      - - "172.16.1.1"
+      - - "172.16.1.6"
         - "172.16.1.254"
     cidr: "172.16.1.0/24"
     role:
@@ -47,7 +47,7 @@

   - name: storage
     ip_ranges:
-      - - "172.16.2.1"
+      - - "172.16.2.6"
         - "172.16.2.254"
     cidr: "172.16.2.0/24"
     role:
@@ -56,7 +56,7 @@

   - name: external
     ip_ranges:
-      - - "192.168.116.201"
+      - - "192.168.116.206"
         - "192.168.116.221"
     cidr: "192.168.116.0/24"
     gw: "192.168.116.1"
  1. Edit deploy.sh
2.1. Set EXPANSION and VIRT_NUMBER.
VIRT_NUMBER decide how many virtual machines needs to expand when virtual expansion

E.g.

export EXPANSION="true"
export MANAGEMENT_IP_START="10.1.0.55"
export VIRT_NUMBER=1
export DEPLOY_FIRST_TIME="false"

2.2. Set scenario that you need to expansion

E.g.

# DHA is your dha.yml's path
export DHA=./deploy/conf/hardware_environment/expansion-sample/hardware_cluster_expansion.yml

# NETWORK is your network.yml's path
export NETWORK=./deploy/conf/hardware_environment/huawei-pod1/network.yml
Note: Other environment variable shoud be same as your first deployment.
Please check the environment variable before you run deploy.sh.
  1. Run deploy.sh
./deploy.sh