Proxmox VE is a complete open source virtualization management solution for servers. Proxmox is based on KVM virtualization and containe..
In this post I show how to install Open vSwitch on CentOS 6.5. This is the second post that gets into the Apache CloudStack 4.4 with Advan..
If you have every created a linux virtual machine template you’ve probably experienced the issue where a new ethernet device would be created on each VM instance created from that template. For those that have not found the resolution to this problem are in for a treat if your working with CentOS or RHEL. All thats needed is to delete the “/etc/udev/rules.d/70-persistent-net.rules” file right before you shutdown the vm and make it a template.
The tip I have for you this time is to use CloudStacks interface for accessing meta-data about you instance from within the instance. It’s very simple to use and can be very useful. In this tip I’ll show how you can use the meta-data to rename a CentOS 6.4 linux instance automatically after it is created. But first lets introduce the meta-data interface for CloudStack.
CloudStack 4.2 is ready for release but the site has not updated so that you can just update your repo and install or upgrade so in this post I’ll go thru the process I use to compile from source. You can use this process for other versions but some things may change. You could also follow the process on the Apache Cloudstack documentation website but this is a slim down version to get you quickly moving with 4.2.
oVirt 3.3 is now release. If you have no idea what oVirt is or what it’s used for put simply it’s pretty similar to VMware vCenter except open source and doesn’t manage ESX. oVirt is a centralized management solution used to manage KVM hosts and GlusterFS as well as other aspects of your virtualization environment. If your just looking to create and manage virtual machines, oVirt has you convered and includes many of those got to have features like HA and live migration.
Now I don’t think I have to say that this came from someone employed at a certain company that starts with an “S” and ends with an “E”. I have nothing against the company or this person that sent the email because I understand where that persons motives are. But don’t try to sell me on something because two big influential companies are potentially playing a game for children.
So for this post I decided to do a video showing what to do after the you’ve completed the initial steps. It only shows the process for creating a Zone with all it’s required resources like storage and hosts. The video was done using version 4.0 but it works for 4.1. The only difference is that the UI has had some nice updates and visual touches to it.
I thought I’d continue on this topic for those who may be having different issues for the cloudstack-agent not starting. First thing you should do is check your logs and in one case I was able to reproduce this issue.
Before adding your hosts in the cloudstack manager you need to pressed the system vm template. This does not go over the process for setting up the storage backend (NFS).