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Cisco IOS Service-Containers: Run an x86-VM inside a Router (Part 3: Create the Service-VM)

Create the „Ubuntu Server“-VM using KVM on top of the „Ubuntu Desktop“-VM
Run the „Virtual Machine Manager“

Virtual Machine Manager

Create a new virtual Machine:
Virtual Machine Manager – create a new VM

(1) Create a new virtual Machine

vmm – 1 – Create a new virtual machine

(2) Select the Installation ISO
* and deselect „auto OS Detection“

vmm – 2 – Use ISO Image

(3) Choose Memory and CPU Settings

vmm – 3 – Choose Memory and CPU settings

(4) Create a virtual Hard-Disk for the VM

vmm – 4 – Enable storage for this VM

(5) Give a name to the VM

vmm – 5 – Ready to begin the installation

Boot the KVM-VM („Ubuntu Server“)

0 – install Ubuntu Server

Basic Setup:

  • Language: Englisch
  • my territory: other/Europe/Germany
  • locale: en_US.UTF_8
  • Keyboard: German
  • hostname: ubuntu-server
  • user / password
  • no home-directory encryption
  • timezone Europe/Berlin
  • use entire virtual disk (no need for „LVM…“ i think)
  • no HTTP-Proxy
  • no automatic updates
  • [x] SSH-Server
  • install GRUB

After the first login, as always:
sudo apt-get update && sudo apt-get upgrade –y
sudo reboot

Enable the Virtual-„Console“-Port of the Ubuntu-Server-VM

  • enable a virtual „CON“ serial-port at the linux vm

sudo joe /lib/systemd/system/ttyS0.service

Example-Script for the 16.04 System-CTL Service:

[Unit]
Description=Serial Console Service

[Service]
ExecStart=/sbin/getty -L 9600 ttyS0 vt102
Restart=always

[Install]
WantedBy=multi-user.target

Reload systemctl, enable the TTY-service and then start it:

sudo systemctl daemon-reload
sudo systemctl enable ttyS0
sudo systemctl start ttyS0

Verify the service state:
user@ubuntu-server:~$ sudo systemctl status ttyS0
● ttyS0.service - Serial Console Service
Loaded: loaded (/lib/systemd/system/ttyS0.service; enabled; vendor preset: en
Active: active (running) since Sat 2018-02-03 20:21:20 CET; 1h 19min ago
Main PID: 831 (login)
Tasks: 0
Memory: 672.0K
CPU: 196ms
CGroup: /system.slice/ttyS0.service
‣ 831 /bin/login --

Add your „Network Application“ to the VM:
I want to use my Service-Container for network-management (Centralized access to device-configuration and other state-information using NAPALM and Linux: SNMP with Python ):
sudo apt-get install -y joe
sudo apt-get install –y libsnmp-dev snmp-mibs-downloader
sudo apt-get install –y gcc python-dev python-pip libssl-dev libffi-dev python-cffi
pip install easysnmp
pip install napalm

That’s all
Shutdown the VM

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