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VMworld Hackathon vSphere Client Login UI Theme

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For those of you who attended this years VMworld Hackathon (US/Europe), you may have noticed something different when logging into the vSphere Web/H5 Client? In case you missed it or could not attend, here is a GIF demonstrating what you would have saw:

via GIPHY

No, the VMworld Hackathon environment was not hacked 😉 but instead I had built a very special VMworld Hackathon vSphere Client Login UI Theme for the event. I was also getting tired of looking at our boring blue login screen. Customizing the vSphere Client Login UI has been possible (though not officially supported by VMware) since vSphere 6.0 which I have written about here, here and most recently here (due to vSphere 6.5 Update 1 changes). Having received a large number of requests from folks who attended the Hackathon as well as folks who had heard or saw the customization who wish to replicate this in their own environment, I have posted the instructions below.

This slick customization would not have been possible without the help from Timo Sugliani (thanks dude!) who was the one that made me aware of the two of the creatives that then gave me the idea to combine them into a vSphere Client Login UI Theme. The first is V for Vendetta image which can be found here and the second is super slick interactive Bootstrap animation which can be found here. Lastly, I added my own touch by using a Mr. Robot font from this site here which goes really well with the overall theme.

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vSphere Client Login UI customizations do not persist in VCSA 6.5 Update 1

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The much anticipated release of vSphere 6.5 Update 1 just GA'ed late last week and like many in the community, I also went ahead and upgraded my home lab to this latest release. vSphere 6.5 Update 1 contains a ton of fixes as well as several new capabilities which you can read all about in the release notes here and here.

One neat little trick I take advantage of in my lab environments when deploying the vCenter Server Appliance (VCSA) is actually pre-filling out the credentials for the vSphere Client UI (not recommended for production environments of course) which I had blogged about here a few years back. Sine I have many different environments for different scenarios, I find myself being lazy and having to type in the credentials to each one of these environments. Instead, I can pre-fill either the username and/or password (which I will stress again, not recommended for production) within the vSphere Client Login UI page which is simply just using HTML.


After making the necessary changes to my VCSA 6.5u1 system, I needed to reboot my ESXi host and when everything came back up, I was surprised to find my changes to the vSphere Client Login UI had disappeared. It took me awhile to figure out why the changes were not persisting across reboots. There seems to be a change in behavior compared to prior releases of the VCSA (6.0 & 6.5) on when this capability was actually possible.

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Visualizing live network traffic on the vCenter Server Appliance using net-glimpse

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Last week I came across a really interesting OSS project called net-glimpse which allows you to easily visualize your network traffic in real-time and making that available using any standard web browser. I thought it would be neat to see what this might look like running on the vCenter Server Appliance (VCSA). I got it up in running in just a couple of minutes and even shared the results on Twitter as you can see from the tweet below:


I had couple of folks ask about the setup and I figure I would post a quick write up. While looking at the project, I found that net-glimpse includes quite a bit of customizations in the colors, data collection and how data is displayed. Specifically, rather than relying on the well-known ports that have already been pre-defined, you can also add additional custom ports and specify the label that it should automatically used. This gave me an idea, instead of a generic visualization of the VCSA, we could get specific service information and have those label automatically get displayed.

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