Is there any way to install OpenStack without using virtual box in a single machine?
You can install all openstack services(controller, compute, network) in a single node. But it's not recommended.
If you don't want to install virtualbox you can try VMware
You may also try LXC or XEN if you are using linux. Then create 3 virtual machines and install openstack 3 node configuration.
Yes, of course. Just make sure you have enough resources on the system (single machine) to bare OpenStack. You may use packstack do the All-in-One
deployment. Check out RDO.
There is a possibility of installing openstack(both 2 and 3 node architectures) in a single system. But, things are to be considered. Like the performance of the system used, the primary memory associated with it, the secondary memory that is available, e.t.c
If you're talking about development environment, sure! You don't need a VM at all, and can just install it on your laptop directly! Note that this is not a desirable configuration :)
Other ways are to use a different virtualization tool than VirtualBox, like KVM, or VMware stuff.
Virtual machine is nothing but a system with shared resources. Whatever we do on a VM can be replicated to an individual system.
Make sure you have VT enabled on the hardware , else you may have issues in creating instance on the Compute node.
Regards,
Amit Manel
Whatever you can install in single virtual machine , can also be installed on your machine directly.
After all your machine is much more powerful and stable than your virtual machine.
We use virtual machine just to leave our system intact in case something goes wrong. Just compare the time it would take you to delete and create another virtual machine with time and effort for formatting your entire laptop.
Also, we sometimes use virtual machine if we need to make a network of 2-3 computers for some functionality and we have got only one hardware.
I created with kvm virtual machünes on Ubuntu 14.04
If you create the virtual machines and the virtual networks you can use it.
For the easiest way if you use an orchestration/deployment tool e.g. Mirantis Fuel
Surprising no body talked about Dockers. You can run openstack in a docker container.
According to my experience, always try to install openstack on a fresh system( either on a freshly created VM or on a newly installed OS). I have installed openstack many times, and trust me no error will come just follow this link on a newly setup machine. For old system, I was stuck for 3 days, and only GOD knows where from the hell those errors were showing up.
PS: I have always tried ubuntu system.
Related
So you've bought a shinny new mac M1/M2 and you realise that you can't get virtualisation to work.
I tried every hypervisor and tried a lot of combinations
So it took me days to get the following working with visualisation since VirtualBox 7.0.2 which stated it would work for M1/M2 chipset.
What I wanted to achieve was the following:
Shared Folders
Bridged Network Interface
RHEL based OS
Sounds simple right!! Well this was a lot of trial and error. I read a lot of articles with people patching software just to get the basics going and I couldn't find the patched files so wanted an out-of-the-box solution.
So after hours of trying Centos Stream 8 which all our servers are on and what our development environments are on, I tried installing Ubuntu 20.04 in parallels with shared folders but without bridged networking and this was the light bulb moment when I realised it was the pagesize of the OS, so RHEL 8 will not work.
So I tried RHEL 9 in parallels and it booted up and installed. I then tried to install the Guest Tools so I can get Shared Folders to work but this then highlighted a bug in the Guest Tool which really disappointed me considering they state they have a working hypervisor which can work with aarch64 but this wasn't the case, however it does work on Ubuntu just not RHEL 9.
I then tried VMWare Fusion which failed miserably, you can launch the VM but no Shared Folders or no Bridged Network. Quickly move on to something I tried earlier which was UTM.
Now UTM has 3 modes and it is important to know the 3 (correct me if i'm wrong).
Virtualisation with QEMU
Virtualisation with Apple Hypervisor
Emulation (everything is run via Rosetta)
I tried QEMU but there was issues with Shared Folders so wasted no time in not spending anymore time using QEMU.
I then decided to try the Apple Hypervisor and I noticed everything was running faster than it did in QEMU. Mounting the Shared Folder was easy and simple, and you can mount it in you /etc/fstab for permanently mount, you also can set the Bridged Network in the settings.
So after a lot of trial and error I was able to get a RHEL based OS VM running with UTM using Apple Hypervisor with the same functionality as I used to have with vagrant.
We run Openstack with KVM as hypervisor and now need to run ESXi 6 or 7 inside a VM (nested virtualization). This is mainly for converting disks to proper vmdk disks, not really running any VMs under ESXi (that is why we are not using a barebone and run esxi as hv)
We run this very same setup under Proxmox without bigger issues, the main point was using the vmxnet driver for the NIX. That is exactly where we fail with Openstack. It seems there is no such driver, using e1000 does not working. Booting the installation iso leads to 'no nic found' in the very end.
We are using Openstack Xena with Debian-Buster as compute (running libvirt) on kernel 5.10/5.14.
Any hints how to get this up and running?
Using https://github.com/virt-lightning/esxi-cloud-images i managed to get it working for 6.5/6.7 but not 7.0.
One seems to not be able to install ESXi via ISO on the an OpenStack instance itself (directly), since no matter if you use e1000 (6.x) or e1000e (7.x) for the installation, the installer will not be able to find the NIC during the installation. Also for the 6.x installer under Openstack, it could not find any disks (with or without the SATA flag).
Instead, I used the repo above to build an pre-installed esxi images shipped via qcow - it is build on my local machine and thus my local libvirt. Not sure yet why this makes a huge difference, maybe the nova based abstraction or something else hinders Openstack (no verification yet).
Building the 6.5/6.7 based qcow2 image locally, importing it via glance (ensure you use e1000 for 6.x and e1000e for 7.x) and then creating a new instance.
This will get you up and running on 6.5/6.7 with proper DHCP and network configuration.
For 7.x the interface is detected, but somehow DHCP is not working. I tried with q35 and different other options, but could not get 7.x to work until know.
I created a fork at https://github.com/EugenMayer/esxi-cloud-images to
proper expose credentials one can login
remove ansible zuul usere with a predefined public key by the author
cleanup the readme
I want to install Openstack on CentOS 8(single node). I am having single machine (physical machine) where I want to install all nodes of Openstack. This setup I required for simulation only not production use.
I have tried to install Openstack using packstac 3 times but couldn't success.
I got different issues during installation:
1.In first attempt After installation, I tried to create instance, but not getting console of instances even after it got created successfully.
2. In second attempt, during deployment of instance, network not getting allocated.
3. In third attempt, it got stuck at packstack, puppet testing only.
I have followed below 2 links:
https://computingforgeeks.com/install-openstack-victoria-on-centos/
https://www.google.com/amp/s/www.linuxtechi.com/install-openstack-centos-8-with-packstack/amp/
I followed each and every steps mention in the likns.
I want to create two Ubuntu VMs on Openstack.
Can someone provide me some links/video, where I can get everything which is required to install Openstack on single node and create two Ubuntu VMs and assign network to them and test the connectivity between these two VMS.
Thanks in advance.
I would use official Packstack documentation. Note that you should start with a totally fresh Centos installation; i.e. don't try to install Packstack on a server where a previous installation failed (or succeeded).
You can also try Devstack. Its default configuration requires a smaller machine than Packstack (in my experience, 8GB RAM should be sufficient). Same remark: Start with a fresh installation of Centos or Ubuntu.
Microstack is another alternative. Its advantage is a very simple and quick installation; its disadvantage is a very strange (in my opinion) configuration and not a lot of documentation. However, it is suitable for your purpose. It claims to work on any Linux, Windows and MacOS; it does require snap.
I suggest directly installation onto Ubuntu Server.
some time ago I wrote a serie of posts in which I explained in detail how to install OpenStack Rocky. The 2 first blog posts ([1] and [2]) contain commands, examples, content of configuration files that cover common scenarios and tips for the successful installation of most OpenStack services (keystone, nova, glance, etc.) in a single node, and the third post [3] describes the installation of a computing node. This 3rd post is installed in a different node for the sake of making it easier to understand how nova works, but the installation can be safely carried out in the same node than the other components.
I find that the posts are short enough and are very easy to follow (I use that blog as my installation tips, and so I have used them for several deployments). The only caveat is that it is based on Ubuntu, but if you know about your installation, it should be easy to translate the installation to CentOS (some colleagues have used these tips for CentOS installations).
I tried to install Openstack several times last week (october 2021): a) with CentOS 8 Stream to metal hardware (real server) with devstack - no one version was installed (neither Master nor Xena & Wallaby, version Viktoria & below are not for Stream OS); b) Virtual machine with CentOS 8 Stream installed with packstack - installation was clearly successful (!), quite easy for install (according to official RDO project and its homepage), however there is the real problem with virtual and actual networking: no external network is accessible, router created was OK with external connection (router IP was detected successfully from outside) but no connection was possible from and to instance. So I conclude the Openstack package is not completely documented to resolve problems, however its installation can be quite easy (when successfully finish ;) )
Addition: Of coarse, there are resources with an information how network can be configured, official Openstack docs describes different network configurations as well (however it is difficult to find it for one click and being newbie), but anyway this system requires a lot of time to study before usage.
Recently I installed openstack using devstack on my laptop. The problem I'm facing is to launch an instance, since my pc have poor ressources (32 bits, 4 Go Ram, 20Go free space), I need to deploy a very small image.
I tried an iso image for an ubuntu, I downloaded also a image from Ubuntu Cloud images but both of them can't be started. All I want to do is to launch an instance, install java, Tomcat server.
Any advice about an image that I can use?
Try Ubuntu Server Cloud Image
It will run perfectly with 512 MB of RAM.
Also stop unwanted services to save memory. Like stop ssh, sendmail, crond If you are not using them.
Use ubuntu cloud images. Make sure your cloud image is also 32bit.
While spawning instance, see that you look into Nova Security groups to allow ports which you might use.
devstack has cirros built-in. It is probably as small as you can get. It is a limited distro, but you should be able to download the jdk installer and run it.
You may need to download a 32 bit cirros image. The cirros distro downloads are available here:
https://launchpad.net/cirros/+milestone/0.3.0
This image should work for you:
https://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-i386-disk.img
You can try any image which are at **https://docs.openstack.org/image-guide/obtain-images.html.
In these Ubuntu image is one which you can use and install applications on it.
It comes with default username ubuntu and you can set new password using cloud-init of heat template or manually while launching the instance.
I have some questions:
Is it possible to install openstack on a Notebook with a 4GB DD3 Ram? Because the website says it needs atleast 8GB of RAM.
They say it requirs a double-QuadCore , I assue that means Octacore. Can we install that on a Quadcore?
They say that there is no possibility to install it on a NAS . Did you find any where if there is a possibility to do?. I dint find any even after asking our friend(google).
All in all, is it at-all possible to install on it a notebook/Desktop?
That advice is for production environments,
so 1)If you just want to play around your notebook will do fine. I had a succesful test-run on a 1.2 Ghz 1GB Netbook. It became incredibly slow when it launched it's first instance...
With a Double Quadcore they actually mean two seperate Quad-cores, as in two quad-core xeon processors on a single motherboard
So 2) yes you can install it on a quad-core.
3) a NAS device running openstack an openstack storage service seems to be unlikely indeed. You will most likely need more computing power.However If your NAS supports NFS or SSH or sth you can probably mount this drive and use it for storage.
4) You can perfectly build a all-in-one openstack test setup on your notebook. Performance will be low, but acceptable for testing.
It depends on what you mean by "install OpenStack". OpenStack itself is an extremely modular framework consisting on many services (Compute, Networking, Image service, Block Storage, Object Storage, Orchestration, Telemetry, ...). On top of that, a typical production deployment of OpenStack also requires several components, like load balancers, caching systems, firewalls, web servers and others. It is definitely possible to install a minimal openstack system, even on an average laptop.
The simplest way to run OpenStack on a laptop/desktop is to use Devstack, a shell script that installs all services from source and run them (by default) on a single machine. It is customizable enough to provide very good testing ground; it's used by OpenStack developers as well as the OpenStack QA team to test latest developments against "real" systems.
To avoid messing up your system, it's generally recommended to install OpenStack in a VM. From devstack doc:
DevStack should run in any virtual machine running a supported Linux release. It will perform best with 2Gb or more of RAM.
As of the time of this writing (Jan 2015), supported distros are:
Ubuntu (latest LTS)
Fedora
CentOS
Regarding NAS: you can of course use it, but "outside" Openstack apis, by providing mount points to your vms. It's even mandatory if you want to support live migration.