Monthly Archives: May 2013

Installing OpenStack on CentOS in Private Network

With increasing popularity of OpenStack, I finally got chance to try it out by myself. As the first step, I chose to install everything into one machine (update: for multi-node deployment, check here). Thanks to the packstack project and RedHat documentation (http://openstack.redhat.com/Quickstart), it’s supposed to be straight forward and painless on CentOS. It turned out to be true if and only if you install it with direct HTTP(s) access to the Internet.

Posted in Cloud Computing | Tagged , | 4 Responses

Better Way for Workflow Design in Orchestration and Automation?

In my last article on orchestration, I talked about the issues with the current workflow design. Although intuitive and easy to get started, it’s really inefficient and hard to handle for complicated workflows. A natural follow up question is, “is there any better way to design workflows?”

Like everything else, there is hardly an approach that is better than others in every aspect. The alternative approach, coding, may not be as intuitive as the visualized flow chart approach, but it’s highly productive. So the quick answer for the above question is yes if you can combine them together.

Posted in Software Development, Virtualization | 6 Responses

Tips For Developers Using VMware vCenter Orchestrator

I recently spent some time on vCenter Orchestrator and really liked it with nice integration with vSphere Web Client, even though the Web Client has to improve quite some before it can overtake the standalone vSphere Client.Coming from the programming background, I find the workflow design is pretty easy to understand. Although targeted mostly for people with no programming background, workflow has in fact stronger typing than typical scripting. That may explain why having programming background helps a lot to quickly ramp up on workflow development.

Posted in Virtualization | Tagged , , | 5 Responses

Virtualization for PaaS: Asset or Liability?

During the Microsoft Management Summit last month, I had an interesting chat with Rakesh Malhotra who is the VP product of Apprenda. It made me to think more about two important technologies: virtualization and PaaS. As we know, virtualization is almost a must for IaaS. Will it be the same case for PaaS?

Pure PaaS or PaaS over IaaS

Posted in Cloud Computing | Tagged , , | 12 Responses

Can The Success of Server Virtualization Be Repeated in Networking?

The software-defined networking is the new buzzword for network centralization, which is also known as OpenFlow or network virtualization. The idea is to centralize the control to a server (or a cluster of servers) called controller.

With the acquisition of Nicira by VMware, the software-defined networking has caught many eyeballs from the community. From there, VMware extended it to a new vision called software-defined datacenter which includes three elements of computing: compute, network, and storage.

Posted in Cloud Computing, Virtualization | Tagged , , , , , | 7 Responses
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