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  • Ubuntu 16 running in VirtualBox

VirtualBox

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Preferences

In VirtualBox Preferences define Host-only adaptor (should already exist and default to the following)

  • Ip: 192.168.56.1
  • Netmask: 255.255.255.0
  • DHCP: Enabled

Create K8Master Node

Create VM

Create a VM with the following:

  • 2 GB MEM
  • 10 GB disk
  • user: test

Install SSH


For Networking assign the following:

Adaptor 1: NAT

Adaptor 2: Host-only adapter (vboxnet0)


For Audio: Disable


Start VM and install Ubuntu Server 16


Networking Setup

Log into the VM and issue the following commands.> sudo apt-get install openssh-server


Determine your network interfaceinterfaces

> ifconfig -a

Code Block
enp0s3    Link encap:Ethernet  HWaddr 08:00:27:ff:1a:7b  
          inet addr:19210.1680.562.315  Bcast:19210.1680.562.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:feff:1a7b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1682885 errors:0 dropped:0 overruns:0 frame:0
          TX packets:244644 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:144633903493 (3.9 MB)  TX bytes:39345 (1439.43 KB)

enp0s8    Link encap:Ethernet  HWaddr 08:00:27:eb:d0:60  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX bytes:21919 (21.9 KB)packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:19723 (19.7 KB)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:160161 errors:0 dropped:0 overruns:0 frame:0
          TX packets:160161 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:1184011889 (11.8 KB)  TX bytes:1184011889 (11.8 KB)


From the above we can see that our vm is running with IP: 192.168.56.3has 2 network interfaces but only one is configured. The first interface is using NAT and has been assigned an IP address. We will need to add the second interface which is using the host-only network.

We are going to set this second interface (host-only) to a specific IP address: (Let's make it a static and assign it 192.168.56.100.)


> sudo vi /etc/network/interfaces

Code Block
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).


source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto enp0s3
iface enp0s3 inet dhcp

auto enp0s8
iface enp0s3enp0s8 inet static
        address 192.168.56.100
        netmask 255.255.255.0
        network 192.168.56.0
        broadcast 192.168.56.255
        gateway 192.168.56.1
        dns-nameservers 192.168.56.1 8.8.8.8


> reboot


After reboot, we should be able to confirm that the ip address is static by issuing the ifconfig command once more.

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> ssh test@192.168.56.100


From the VM, confirm that you can resolve DNS by issueing the following command:

> nslookup google.com





Reference

ReferenceURL
Kubernetes on Ubuntuhttps://kubernetes.io/docs/getting-started-guides/ubuntu/
Install Kubernetes On Ubuntuhttps://www.youtube.com/watch?v=UWg3ORRRF60


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