Virtual Machine deploy operation

CentOS infra KVM hosts

If the KVM virtual machine we want to deploy is hosted on a CentOS KVM host and hosted within the Community Cage (Red Hat) DC, same thing as for bare-metal host : add it in the Internal Inventory, and start also "reserving" IP address[es] for Operating System.

Then add the new node to <inventory>/host_vars/<new_node> and also in the <inventory>/kvm file/group (for inheritance).

Ensure that all the variables explained in adhoc-deploy-kvm-guest playbook are set correctly.

Then you can call it like that :

 ansible-playbook playbooks/adhoc-deploy-kvm-guest.yml 
[WARNING] KVM guests to be deployed with CentOS => : <kvm_guest[s]>

The process will go like this :

• ansible will generate a kickstart locally on the kvm host
• will deploy a wrapper template/script (calling virt-install) with correct settings
• call that script to kick that virt-install script that will inject the kickstart into initrd on demand
• wait for sshd to be available on the node
• clean-up the virt-install wrapper script for the kvm guest

Cloud providers

AWS/EC2