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The deployment architecture is shown below. All Addressing and naming shown are for example purposes only.

Deployment environment components:

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• Internal Lab Network (RFC 1918 space)
• Internet access (NAT'd)
• IP routing in the Lab Network to reach VM interfaces

Software Prerequisites

Installation High-Level Overview

The installation/deployment process consists of the following steps:

1. Install CentOS on Host Server.
2. Prepare Host Server for EMCO Deployment.
3. Deploy EMCO.

Deployment Guide

Install CentOS on Host Server

1. Connect to Host Server iLO interface.
2. Start Virtual Console.
3. Mount Virtual Media with CentOS 7 ISO.
4. Install CentOS
   1. Assign correct IP address, Subnet, Gateway and DNS to the NIC.
   2. Include OpenSSH Server.

Prepare Host Server for EMCO Deployment

Step 1. Enable sudo without entering sudo password:

sudo -i
visudo 
# Uncomment the line below
%wheel  ALL=(ALL)       NOPASSWD: ALL

Step 2. Add sudo user to wheel group:

usermod –aG wheel onaplab

Step 3. Enable nested virtualization:

# Login as super user
sudo -i

# Check for the following parameter
cat /sys/module/kvm_intel/parameters/nested
N
# If it is Y, there is nothing else to be done. It is already enabled!

# If it is N, do the following:
# Edit /etc/default/grub file, and include kvm-intel.nested=1
GRUB_CMDLINE_LINUX parameter
GRUB_CMDLINE_LINUX="crashkernel=auto
console=ttyS0,38400n8,kvm-intel.nested=1"

# Rebuild your GRUB configuration
sudo grub2-mkconfig -o /boot/grub2/grub.cfg

# Enable nested KVM capabilities in /etc/modprobe.d/kvm.conf
# By uncommenting the below line

options kvm_intel nested=1

### Reboot the server
reboot

# Now, we should have the nested KVM capabilities enabled
cat /sys/module/kvm_intel/parameters/nested
Y

Deploy EMCO

Deployment Verification

Uninstall Guide

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