How to install Openstack Newton

For this tutorial, we will be installing Openstack Newton on Ubuntu 16.04 (Xenial). You can use the same tutorial also on Debian 8 (Jessie) but this will install Openstack Mitaka. This tutorial is to help people that wants to start to learn Openstack.

Prerequisites

To complete this tutorial, you'll need the following:

• 1 controller node

• 1 compute node

Hardware requirements

According to the Openstack Documentation, to run several CicrOS instances you will need:

• Controller Node: 1 processor, 4 GB memory, and 5 GB storage
• Compute Node: 1 processor, 2 GB memory, and 10 GB storage

This this tutorial I am using:

• Controller Node: 2 processors, 16 GB memory, 2x250GB disks in a Raid1 configuration and 2 NIC's (eno1 and eno2)
• Compute Node: 2 processors, 16 GB memory, 2x350GB disks in a Raid1 configuration and 2 NIC's (eno1 and eno2)

Your environment doesn't have to have 2 disks in Raid1 configuration, 1 disk will be okay.

Networking

I am using a Cisco switch to setup 2 VLAN's

• manegment VLAN
• Provider VLAN ( Internet)

If you don't have a Cisco switch, you can use two 4 port switches

Controller node

Update hosts file

Make sure the node has Ubuntu 16.04 installed with all updates. If you do not have a DNS server in your environment manually update the hosts file

/etc/hosts

controller mgmt_IP_address    controller.your_domain_name      controller
compute mgmt_IP_address       computer.your_domain_name        compute

example

10.192.16.38                  controller.dfw.ppnet             controller
10.192.16.67                  compute.dfw.ppnet                computer

In my case I have a DNS server in my environement so my /etc/hosts file looks like this:

127.0.0.1       localhost
10.192.16.38     controller.dfw.ppnet   controller
# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

update Interface

In my environment I have a DHCP server and a DNS server on the lab network and all the install on the lab network are done by pxe boot and a preseed file that auto configure my first network interface. My interface file looks like the one below. If you do not have a DHCP or DNS server you can do this manually.

# The primary network interface
auto eno1
iface eno1 inet static
       address 10.192.16.38
       netmask 255.255.252.0
       network 10.192.16.0
       broadcast 10.192.19.255
       gateway 10.192.16.1
       # dns-* options are implemented by the resolvconf package, if installed
       dns-nameservers 10.192.16.2 10.192.16.4
       dns-search dfw.ppnet
# The secondery network interface
auto eno2
iface eno2 inet static
       address 10.192.0.75
       network 10.192.0.0
       netmask 255.255.255.0

Compute node

Update hosts file

Make sure the node has Ubuntu 16.04 installed with all updates. If you do not have a DNS server in your environment manually update the hosts file

/etc/hosts

controller mgmt_IP_address    controller.your_domain_name      controller
compute mgmt_IP_address       computer.your_domain_name        compute

example

10.192.16.38                  controller.dfw.ppnet             controller
10.192.16.67                  compute.dfw.ppnet                computer

In my case I have a DNS server in my environement so my /etc/hosts file looks like this:

127.0.0.1       localhost
10.192.16.67     compute.dfw.ppnet   compute
# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Update interface

# The primary network interface
 auto eno1
 iface eno1 inet static
       address 10.192.16.67
       netmask 255.255.252.0
       network 10.192.16.0
       broadcast 10.192.19.255
       gateway 10.192.16.1
       # dns-* options are implemented by the resolvconf package, if installed
       dns-nameservers 10.192.16.2 10.192.16.4
       dns-search dfw.ppnet
# The secondery network interface
auto eno2
iface eno2 inet static
       address 10.192.0.73
       network 10.192.0.0
       netmask 255.255.255.0

Testing Network

From you controller node ping the compute node

ping compute.dfw.ppnet
PING compute.dfw.ppnet (10.192.16.67) 56(84) bytes of data.
64 bytes from compute.dfw.ppnet (10.192.16.67): icmp_seq=1 ttl=64 time=0.286 ms
64 bytes from compute.dfw.ppnet (10.192.16.67): icmp_seq=2 ttl=64 time=0.213 ms
64 bytes from compute.dfw.ppnet (10.192.16.67): icmp_seq=3 ttl=64 time=0.209 ms
64 bytes from compute.dfw.ppnet (10.192.16.67): icmp_seq=4 ttl=64 time=0.216 ms

From your compute node ping the controller node

ping controller.dfw.ppnet
PING controller.dfw.ppnet (10.192.16.38) 56(84) bytes of data.
64 bytes from controller.dfw.ppnet (10.192.16.38): icmp_seq=1 ttl=64 time=0.206 ms
64 bytes from controller.dfw.ppnet (10.192.16.38): icmp_seq=2 ttl=64 time=0.186 ms
64 bytes from controller.dfw.ppnet (10.192.16.38): icmp_seq=3 ttl=64 time=0.166 ms

References

https://docs.openstack.org/newton/install-guide-ubuntu/