Virtualization Pro

Nov 27 2007   4:02PM GMT

Why You Should Listen To Me



Posted by: Akutz
Tags:
VI3
Virtualization
VMware ESX

No, the title is not a typo. No, I am not that arrogant (I’m telling my wife to hush right about now.) :). I simply think that you should listen to me. Why? Because unlike a lot of other developers I know, I will gladly admit that there may be easier ways of accomplishing a task than writing new code. Developers who disagree have simply lost their way. We become developers because we are ultimately lazy — we want to create shortcuts, hack the OS to find hidden pathways we can exploit. But sometimes we lose our way and reinvent the wheel. Why? Why create what has been created if the prior creation has already been created and was created in a way that resulted in a good creation (I’m on a creation kick apparently)? Which brings me to my point (I bet you thought I didn’t have one) — the VMware VI Perl Toolkit is a wonderful thing and should be used at every opportunity in lieu of writing your own code.

I know writing code is fun — I do it all the time (just like using the em dash). However, writing code for writing code’s sake is a waste of time. Remember, code has a point. We are supposed to use it to carve out new pathways that have not been discovered. However, if someone has already hiked the trail and left their boots and walking stick behind we only need to pick up their tools and walk in their foot steps. And the beautiful part is that we don’t have to follow their trail completely — we can use the tools they left us to forge new trails, new pathways.

The VI Perl Toolkit comes with a lot of handy functions — creating VMs, cloning VMs, migrating them, requesting statistics on them. Yes, all these things are possible by leveraging the SDK directly (how do you think the Perl Toolkit accomplishes what it does — it uses the SDK too), but VMware has taken the time to forge the path and leave us walking sticks and hiking boots. Let’s not look a gift horse in the mouth people (unless we’re Trojans, in which case maybe we should inspect gift horses a little more closely).

Now, all that said, I am not asserting we completely forget about the SDK. I would be stupid to suggest such a thing as I write far too many articles on the subject to recommend that people should stop reading them! :) Remember, the VI Perl Toolkit uses the SDK too, so anything you learn about the SDK can be applied to increasing your knowledge of how the Perl Toolkit works, and more importantly, how to extend it. For example, did you know that you can set up asynchronous callback notifications based on events like a VMotion? I didn’t either until I told me, but boy was I surprised to find out what I knew! I will be writing an upcoming article/blog/SSV ATE on how to set up such a notification (for, oh, I don’t know, ensuring that you are maintaining Windows license compatibility) using the SDK and .NET. Be the first kid on your block to port my example to Perl using the VI Perl Toolkit.

Java. C#. Perl. I give them all just the right amount of love. I’m not a language bigot — I don’t see syntax, only 1s and 0s. And that is why you should listen to me.

Oh, and because I really, really like writing these things and it helps to imagine that someone is reading them. Otherwise I cry.

A lot.

Hope this helps!

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  • Akutz
    [...] of the tasks in the environment. Be sure to check out some resources by Schley Andrew Kutz on the VI Perl Toolkit. I tend to prefer the VA model for something like the Remote CLI for the following [...]
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