How to upgrade an Apache CloudStack Citrix XenServer Cluster

So you have a Cluster of Citrix XenServers and you want to upgrade them to a new version, for example to go from XenServer 6.0.2 to XenServer 6.2, or simply apply the latest Hotfixes.  As this is a cluster that is being managed by CloudStack it is not as simple as using the Rolling Pool Upgrade […]

Shellshock and CloudStack

Shellshock is the family of bugs in the Unix Bash shell which allows an attacker to execute arbitrary commands on a vulnerable system potentially allowing an attacker to gain full access to that system. The bug (CVE-2014-6271) was first disclosed on 24 September 2014, upon closer inspection of the code, related vulnerabilities (CVE-2014-6277, CVE-2014-6278, CVE-2014-7169, CVE-2014-7186, and CVE-2014-7187) were […]

Simple CloudStack Deployment with KVM hosts

In this post Rohit Yadav, Software Architect, at ShapeBlue talks about setting up a Apache CloudStack (ACS)  cloud on a single host with KVM and basic networking. This can be done on a VM or a physical host. Such a deployment can be useful in evaluating CloudStack locally and can be done in less than […]

Using CloudStack 4.3 with Microsoft Active Directory

CloudStack 4.3 provided further enhancements to the LDAP integration, and in this article we will look at how you configure CloudStack to authenticate against a Microsoft Active Directory Server. Enable AD Integration First step is to tell CloudStack about your Active Directory Servers (yes we can now have more than one) Go to Global Settings […]

CloudStack global settings with VMware

In this article, Paul Angus Cloud Architect at ShapeBlue looks into a few interesting settings when using CloudStack to orchestrate VMware environments Working with CloudStack 4.3 and VMware 5.5 in our lab recently, I came to using some very interesting global settings which renewed a project I had on the back burner… vm.instancename.flag This global […]

Apache CloudStack 4.1 – New Features

CloudStack 4.1 is soon to be released, bringing with it a raft of new features and improvements; here I look at some of those new features that the latest release brings. Add / Remove Network on VM Pre CloudStack 4.1, NICs could only be added to a VM during VM Creation. This new feature means they […]

Understanding CloudStack’s Physical Networking Architecture

  Understanding and configuring the physical connections of a host in a CloudStack deployment can at first be very confusing. While Software Defined Networking (SDN) is set to greatly simplify some aspects, its integration within CloudStack is not fully mature yet and it won’t be the right solution for everyone. In this article, Paul Angus, […]

The importance of hypervisor independence

One of the key features of CloudStack over many of it’s competitors is that it is hypervisor agnostic. I love this feature and am excited about what it offers service providers in particular. However, I recently read a post which asked the question: “you can use multiple hypervisors, so what ? what is the likely […]