Virtual machine creation

This playbook uses Ansible to create virtual machines on host server. Create your own XML file for the VM and then run this playbook to create as many VMs as you like.

Requirements

• The following packages should be installed on the host server

apt install ansible libguestfs-tool python3-libvirt

• Install the latest version of Ansible community general

ansible-galaxy collection install community.general

• You should create your own XML file for the VM to use as template.

Steps to create virtual machine

1. Enter the VM hostnames in the vm_name.txt file. For example:

srv16-mme-1
srv16-mme-2
.
.
.

2. Edit the kvm_provision.yaml file and specify the resources for the server.
3. Place the .qcow2 base image in the /var/lib/libvirt/images and rename it to sample-mme-image.qcow2
4. Place the sample coredump .qcow2 image in the /data directory and rename it to sample-coredump.qcow2
5. Edit the VM template file under roles/kvm_provision/templates/vm-template.xml.j2 to match your desired state.
6. Execute the create_vm script to start creating VMs.

Network configuration

1. Edit the configure_network.sh file and specify the gateways for all intefaces. (OM,s1mme,s11,db)
2. Edit the mme_name.txt file in this directory and specify the information in this format:

MME_NAME OM_IP S1MME_IP S11_IP DB_IP

An example would be like this:

srv16-mme-1 172.17.93.80/22 172.17.80.194/27 172.17.56.34/27 172.17.88.194/27

3. Make sure that all hostnames (e,g srv16-mme-1) resolve to the IP of the host machine libvirt interface. You can edit the /etc/hosts as so:

srv16-mme-1     192.168.10.1

4. Execute the configure_network.sh script to start the configuration proccess.