Scale out +1 worker node

- For MySQL InnoDBCluster instances distributed per node.

Signed-off-by: flavono123 <flavono123@gmail.com>

Vagrantfile

@@ -38,8 +38,20 @@ Vagrant.configure('2') do |config|
     worker.vm.hostname = 'cluster1-worker2'
     worker.vm.network :private_network, ip: '192.168.1.4'
     worker.vm.network :forwarded_port, guest: 22, host: 2224, id: 'ssh'
+  end
+
+  config.vm.define 'cluster1-worker3' do |worker|
+    worker.vm.provider 'virtualbox' do |vbox|
+      vbox.name = 'cluster1-worker3'
+      vbox.cpus = 2
+      vbox.memory = 2048
+    end
+
+    worker.vm.hostname = 'cluster1-worker3'
+    worker.vm.network :private_network, ip: '192.168.1.5'
+    worker.vm.network :forwarded_port, guest: 22, host: 2225, id: 'ssh'
 
-    # All VMs are up, after cluster1-worker2 is up, provisioning the entire VMs at once
+    # All VMs are up, after cluster1-worker3 is up, provisioning the entire VMs at once
     worker.vm.provision 'ansible' do |ansible|
       ansible.playbook = 'provisioning/cluster-nodes.yaml'
       ansible.inventory_path = 'provisioning/cluster1_nodes'

provisioning/cluster1_nodes

@@ -2,10 +2,12 @@
 cluster1-master1
 cluster1-worker1
 cluster1-worker2
+cluster1-worker3
 
 [controlplane]
 cluster1-master1
 
 [nodes]
 cluster1-worker1
 cluster1-worker2
+cluster1-worker3

provisioning/host_vars/cluster1-worker3.yaml

@@ -0,0 +1,3 @@
+---
+ansible_port: 2225
+ansible_ssh_private_key_file: .vagrant/machines/cluster1-worker3/virtualbox/private_key

provisioning/roles/dns/tasks/configure.yaml

@@ -7,4 +7,5 @@
       192.168.1.2 cluster1-master1
       192.168.1.3 cluster1-worker1
       192.168.1.4 cluster1-worker2
+      192.168.1.5 cluster1-worker3