::: Virtual Aleph ::: Virtualization Techniques

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17 August, 2016

Installing #OpenStack? Yep! On a #VMWare Virtual Machine #VMWorld

Hi all,
as I'm trying to learn in depth OpenStack, I decide to use my home lab to deploy OpenStack Mitaka, in an "All-in-One" virtual machine, using VMWare Workstation Pro 12. I think that in a production environment, this should be done on a VMWare ESXi cluster, using different virtual machines, one for each component of OpenStack (multi-node installation).

I've got OpenStack Mitaka Infrastructure all in one up and running in about 1 hour and a half.

First of all, the description of the environment on which the CentOS 7 VM has been installed; it is one single VM with;

  1. 2 x 2 cores processors
  2. 24 GB RAM
  3. 1 disk sized 250 GB (better if SSD)
  4. no printer
  5. no floppy
  6. 1 bridged network nic (beware that if you use Windows 10, Bridging service is not installed by default and you have to install it manually from the network panel)
Let's do a minimal installation of CentOS 7, no matter the partitioning, just configure static IP as per your needs; I will use IPV4 addressing for the machine with:
  1. IP = 192.168.1.11
  2. NM = /24
  3. DGW = 192.168.1.1
  4. DNSs = 192.168.1.1, 8.8.8.8, 8.8.4.4
set the hostname 
hostnamectl set-hostname "somename.homelab.net"
Go ahead setting SELinux in PERMISSIVE mode and disable NetworkManager with:

setenforce 0
edit /etc/sysconfig/selinux so to have SELINUX=permissive
systemctl stop firewalld
systemctl disable firewalld
systemctl stop NetworkMananager
systemctl disable NetworkManager

Note you will get some onscreen output telling you that you are removing symlinks

As I'm working on CentOS I prefer to install Open Vm Tools, so

yum -y open-vm-tools

update the whole system and enable the RDO repository:

yum update -y
yum install -y https://www.rdoproject.org/repos/rdo-release.rpm

install packstack package

yum install -y openstack-packstack

Now we are ready to start Mitaka OpenStack installation and configuration.
let's generate the answer file that will define the All-in-One configuration
Execute

packstack --gen-answer-file=/root/answer.txt

then edit /root/answer.txt

so to change the following parameters: (you can choose your preferred NTP servers here)

# NTP Server 
CONFIG_NTP_SERVERS=<NTP_Server_IP> 
# Disable Demo Version 
CONFIG_PROVISION_DEMO=n 
# Set KeyStone Admin Password or Admin user Password 
CONFIG_KEYSTONE_ADMIN_PW=<password> 
# Config Horizon over 
SSL CONFIG_HORIZON_SSL=y 
# Disable Nagios 
CONFIG_NAGIOS_INSTALL=n

Now it's time to execute packstack and install Mitaka

packstack --answer-file /root/answer.txt

The installation of the All-in-one solution is a little longer (about 23 minutes), so I will embed a 4x time lapse vide o(best viewed full screen) to let you see what happens quicker, but the full length video can be found at this link



Then we configure the network

[root@somename ~]# cd /etc/sysconfig/network-scripts/ 
[root@somename network-scripts]# cp ifcfg-<name-of-your-nic> ifcfg-br-ex 
[root@somename network-scripts]# vi ifcfg-<name-of-your-nic>
DEVICE=<name-of-your-nic>
HWADDR="<MAC-of-your-nic>" 
TYPE=OVSPort 
DEVICETYPE=ovs 
OVS_BRIDGE=br-ex 
ONBOOT=yes

[root@openstack network-scripts]# vi ifcfg-br-ex 
DEVICE=br-ex 
DEVICETYPE=ovs 
TYPE=OVSBridge 
BOOTPROTO=static 
IPADDR=192.168.1.3 
NETMASK=255.255.255.0 
GATEWAY=192.168.1.1 
DNS1=192.168.1.254
DNS2=<other-DNS-IPAddress> #if you want
DNS2=<other-DNS-IPAddress> #if you want
ONBOOT=yes

Just to see if all is good, do a network restart

systemctl restart network

Here's a quick video (best viewed full screen) with the procedure:



If our changes are persistent, let's do a restart and try to connect to Mitaka Openstack Dashboard, just to have a look around: shutdown -r now

Lets the All-in-One Mitaka OpenStack reboot and wait until all the services are started before trying to connect to the console (about 10 minutes with my home lab) then enjoy the embedded (short) video (best viewed full screen)


If you are so lucky to have a spare Hyperconverged Nutanix, take the opportunity to read this article.

cheers
\aleph



http://creativecommons.org/licenses/by-nc/4.0/This post is published under CC attribution NonCommercial 4.0 International License
The article from I take the information is LinuxTechi that, back in January wrote an article with the
installation of Openstack Liberty. I have changed the format and added the videos

16 August, 2016

I have some #free spare spaces for #sponsors while blogging at #VMWorld #EMEA



Hello all,
if you look at the right of the blog page you can see that there are square spaces for "sponsors".
If you would like to have your logo (125x125 picture pointing to a link of your own) just click on one of the square so to contact me: it's free of charge - just , if you want - I accept hardware perks to empower my home lab.

Just to remember you, today is the last day for Early bird pricing, So be quick and click the image or the link in this post

cheers
\aleph

07 August, 2016

#VMWorld 2016 #EMEA in #Barcelona: are you attending?

Hello all,
as in the past events, this year I'm going to Barcelona for blogging!
Hope to see you there: a lot of new competitors are on the field and I'm very curious to see what's going on this year and what are the new features and the new strategies VMWare will propose this time!
If you are in doubt to attend, do not miss this opportunity! The event (I partecipate to all VMWorld, since 2006 when it was called TSX), is always really interesting both for technical sessions and Hands on Labs (HOL): plus you can network with most of the Cloud Guru on the World!

Check out the opportunity to use Early Bird registration pricing that's been extended 'till August 16th, as written on the VMWorld site

http://www.vmworld.com/en/index.html?src=vmw_so_vex_mfriz_207

I'll hope to see you there!
stay tuned for next posts!



cheers
\aleph0

13 October, 2015

#VMworld #keynote with Carl Eschenbach

Hi all,
this morning, on stage for the first keynote session, we had Mr. Carl Eschenbach.

After a brief introduction on the number of attendees for this edition of VMworld, 10k attendees from 96 countries,
Carl Eschenbach have spoken about the three challenges for today IT professional:

First of all Cloud silos



Then, application silos


And finally, device proliferation


Every days IT guys have to cope with traditional applications and cloud native applications, trying to make users happy and all the core business run.

The strategic solution proposed by VMware is to have one managed unified hybrid cloud


This will leverage the possibility of executing traditional and cloud-native applications in an unique managed environment (ANY APPLICATION).


And on any devices, starting from workstations/laptops and going throught all the flavours of tablets and smartphones (ANY DEVICE).


In this below last picture you can see VMware idea of "Architecture for IT"


Another great news is that, also VMware, is moving forward with CONTAINERS: there will be the possibility of extending the existing vSphere infrastructure, or to deploy an ad-hoc infrastucture, VMware Photon Infrastructure, that will leverage the power of container technology, as we are seeing with Docker and we will see with RedHat containers and RedHat RHEL Atomic host flavour.

Cheers
\aleph0









12 October, 2015

#vExpert #meetup 2015 in #Barcelona

Hi all,
As all the year during VMworld days, the comunity guy, Corey Romero, organizes the networking events for the vExperts.

This year it was scheduled for Monday 12 at 7PM at the Elephant Restaurant and Lounge.

Great event, with a lot of VMware enthusiasts, and a good moment for networking.

Lot of great names attend the meetup.

Here one pictures of the event


Cheer 
\aleph0



#VMworld #HandsOnLabs: as always a success!

Hello all,
This morning, very early, I manage to take an hands on lab.

When I've finished the queue for the Self paced Labs were very long.
As always the HOL attract a lot of people, because you can experiment in a controlled environments, all you cannot do during your normal working days.

My advice is to try at least one of this labs as they are useful to understand new features, optimize your current environments improving your knowledge and get advices from the expert staff that are there to help you.

If you are CloudCred member, don't forget to scan th QR code when you finish your labs: this will give you points.

Here's the pictures of the HOL place.



Cheers
\aleph0








#vRockStar 2015 Pre-#VMworld Meetup/Party


Hello all,
Great party with a lot of virtualizarion enthusiasts at HardRock CafĂ© in Barcelona, Plaza de Catalunia. 


Thank you to all the sponsors that make it possible: networking with so much people is a great way of expanding social and technical horizons.

Thanks also for the frre T--Shirts. I'm posting pictires of it to show the sponsors that make it possible.

But remember: tomorrow at 8.00PM all the activities at VMWorld begin, so try to keep a good sleep



Cheers
\aleph0

11 October, 2015

Just registered to #VMWorld #EMEA 2015



Hello all,
not very sunny but quite a warm day here in Barcelona.
I've just gone to register myself to the conference and, as always, there was quite a few people.

Best way to go to Europa Gran Fira Conference center is to reach Plaza de Espana and then take the first train on the pink line.

When you register do not forget to go at the info point and ask for your 10 free travel tickets.

Have you filled your agenda?

Are you ready for a five day marathon?

Do you prefer to do some Hands on Labs ?

Or you are waiting to network with experts?













cheers
\aleph0


09 October, 2015

First time at #Barcelona #VMworld: #Underground map

Hi all,
Here's the underground map for Metro Barcelona for the attendees that come in Barcelona dor the first time


Hope to help you!
For other useful links read my previous posts
Cheers
\aleph0

#VMworld: weather forecast in #Barcelona

Hi all,
Are you filling your luggage?
Here's the weater forecast for next week.
Be prepared


And don't forget to fill in your agenda: read my previous posts for the links!
Cheers
\aleph0