When i begon with scripting using PowerShell ISE for Coding.
PowerShell ISE and Visual Studio Code are free coding tools from Microsoft.
But when Visual Studio Code was released back in 2015 i was switching to that. Powershell ISE i still use on a daily base for some basic tasks.
But with de Extenions list for Visual Studio Code getting better and better scripting is much faster and without errors and easyer to read.
The list with favo extensions is getting bigger en bigger. Which makes my live a little easyer and helpfull.
So the list of my Favorites: Prettier – Code Formatter TODO Highlight Code Spell Checker Dutch – Code Spell Checker Code Snap Error Lens Hashicorp HCL HashiCorp Terraform
Because AI is hot I ám currently testing the following plugins ChatGPT GitHub CoPilot GitHub CoPilot Chat
Using the ChatGPT/CoPilot plugins makes scripting even faster
As Windows Server 2025 Preview is officially released, I wanted to test a automated build of the Windows Server 2025 Preview release. So that I can deploy this in my home lab and going to test the new features if I can find the time….
About Hashicorp Packer
Hashicorp Packer is a self-contained executable producing quick and easy operating system builds across multiple platforms. Using Packer and a couple of HCL2 files, you can quickly create fully automated template(s) with latest Windows Updates en VMware Tools. When you schedule a fresh builds after patch Tuesday you have always an up-to-date and fully secured template.
When using VMware customization tools. You can spin up vm’s in minutes.
Automated Windows Server 2025 “Preview” Build
Files you need? The files and versions I am using at the time of this writing are as follows:
Other considerations and tasks you will need to complete:
Copy the Windows Server 2025 ISO file to a vSphere datastore
Windows Server 2025 unattend Answer file for the automated Packer Build
Like other automated approaches to installing Windows Server, the automated Windows Server 2025 Packer build requires an answer file to provide answers to the GUI automatically and other installation prompts that you normally see in a manual installation of Windows Server.
Sometimes you want to make a design of something.
A whiteboard is then very handy. In most cases you would to like to use Microsoft Visio.
But on my home pc I don’t have Visio. A free alternative is Excalidraw.
You can draw some thing cool like this: (This for Demo only has no function)
Installing Features on Demand through Powerschell contains a bug. You may see “failure to download files”, “cannot download”, or errors like “0x800F0954” or file not found.
To Solve that I created I powerschell script to run the install twice: featuresondemand.ps1
The VMware Cloud Foundation (VCF) Holodeck Toolkit is designed to provide a scalable, repeatable way to deploy nested Cloud Foundation hands-on environments directly on VMware ESXi hosts. These environments are ideal for multi-team hands on exercises exploring the capabilities of utilitizing VCF to deliver a Customer Managed VMware Cloud.
Delivering labs in a nested environment solves several challenges with delivering hands-on for a product like VCF, including:
Reduced hardware requirements: When operating in a physical environment, VCF requires four vSAN Ready Nodes for the management domain, and additional hosts for adding clusters or workload domains. In a nested environment, the same four to eight hosts are easily virtualized to run on a single ESXi host.
Self-contained services: The Holodeck Toolkit configuration provides common infrastructure services, such as NTP, DNS, AD, Certificate Services and DHCP within the environment, removing the need to rely on datacenter provided services during testing. Each environment needs a single external IP.
Isolated networking. The Holodeck Toolkit configuration removes the need for VLAN and BGP connections in the customer network early in the testing phase.
Isolation between environments. Each Holodeck deployment is completely self-contained. This avoids conflicts with existing network configurations and allows for the deployment of multiple nested environments on same hardware or datacenter with no concerns for overlap.
Multiple VCF deployments on a single VMware ESXi host with sufficient capacity. A typical VCF Standard Architecture deployment of four node management domain and four node VI workload domain, plus add on such as VMware vRealize Automation requires approximately 20 CPU cores, 512GB memory and 2.5TB disk.
Automation and repeatability. The deployment of nested VCF environments is almost completely hands-off, and easily repeatable using configuration files. A typical deployment takes less than 3 hours, with less than 15 min keyboard time.
Nested Environment Overview
The “VLC Holodeck Standard Main 1.3” configuration is a nested VMware Cloud Foundation configuration used as the baseline for several Private Cloud operation and consumption lab exercises created by the Cloud Foundation Technical Marketing team. The Holodeck standard “VLC-Holo-Site-1” is the primary configuration deployed. The optional VLC-Holo-Site-2 can be deployed at any time later within a Pod. VLC-Holo-Site-1 configuration matches the lab configuration in the VCF Hands-On Lab HOL-2246 and the nested configuration in the VCF Experience program run on the VMware Lab Platform.
Each Pod on a Holodeck deployment runs an identical nested configuration. A pod can be deployed with a standalone VLC-Holo-Site-1 configuration, or with both VLC-Holo-Site-1 and VLC-Holo-Site-2 configurations active. Separation of the pods and between sites within a pod is handled at the VMware vSphere Standard Switch (VSS) level. Each Holodeck pod connects to a unique VSS and Port Group per site. A VMware vSphere Port Group is configured on each VSS and configured as a VLAN trunk.
Components on the port group to use VLAN tagging to isolate communications between nested VLANs. This removes the need to have physical VLANs plumbed to the ESXi host to support nested labs.
When the Holo-Site-2 configuration is deployed it uses a second VSS and Port Group for isolation from Holo-Site-1
The VLC Holodeck configuration customizes the VCF Cloud Builder Virtual Machine to provide several support services within the pod to remove the requirement for specific customer side services. A Cloud Builder VM is deployed per Site to provide the following within the pod:
DNS (local to Site1 and Site2 within the pod, acts as forwarder)
NTP (local to Site1 and Site2 within the pod)
DHCP (local to Site1 and Site2 within the pod)
L3 TOR for vMotion, vSAN, Management, Host TEP and Edge TEP networks within each site
BGP peer from VLC Tier 0 NSX Application Virtual Network (AVN) Edge (Provides connectivity into NSX overlay networks from the lab console)
The figure below shows a logical view of the VLC-Holo-Site-1 configuration within a Holodeck Pod. The Site-1 configuration uses DNS domain vcf.sddc.lab.
Figure 1: Holodeck Nested Diagram
The Holodeck package also provides a preconfigured Photon OS VM, called “Holo-Router”, that functions as a virtualized router for the base environment. This VM allows for connecting the nested environment to the external world. The Holo-Router is configured to forward any Microsoft Remote Desktop (RDP) traffic to the nested jump host, known as the Holo-Console, which is deployed within the pod.
The user interface to the nested VCF environment is via a Windows Server 2019 “Holo-Console” virtual machine. Holo-Console provides a place to manage the internal nested environment like a system administrators desktop in a datacenter. Holo-Console is used to run the VLC package to deploy the nested VCF instance inside the pod. Holo-Console VM’s are deployed from a custom-built ISO that configures the following
Microsoft Windows Server 2019 Desktop Experience with:
Active directory domain “vcf.holo.lab”
DNS Forwarder to Cloud Builder
Certificate Server, Web Enrollment and VMware certificate template
RDP enabled
IP, Subnet, Gateway, DNS and VLAN configured for deployment as Holo-Console
Firewall and IE Enhanced security disabled
SDDC Commander custom desktop deployed
Additional software packages deployed and configured
Google Chrome with Holodeck bookmarks
VMware Tools
VMware PowerCLI
VMware PowerVCF
VMware Power Validated Solutions
PuTTY SSH client
VMware OVFtool
Additional software packages copied to Holo-Console for later use
VMware Cloud Foundation 4.5 Cloud Builder OVA to C:\CloudBuilder
VCF Lab Constructor 4.5.1 with dual site Holodeck configuration
VLC-Holo-Site-1
VLC-Holo-Site-2
VMware vRealize Automation 8.10 Easy Installer
The figure below shows the virtual machines running on the physical ESXi host to deliver a Holodeck Pod called “Holo-A”. Notice an instance of Holo-Console, Holo-Router, Cloud Builder and four nested ESXi hosts. They all communicate over the VLC-A-PG Port Group
Figure 2: Holodeck Nested Hosts
Adding a second site adds an additional instance of Cloud Builder and additional nested ESXi hosts. VLC-Holo-Site-2 connects to the second internal leg of the Holo-Router on VLAN 20. Network access from the Holo-Console to VLC-Holo-Site-2 is via Holo-Router.
The figure below shows a logical view of the VLC-Holo-Site-2 configuration within a Holodeck Pod. The Site-2 configuration uses DNS domain vcf2.sddc.lab
Figure 3: Holodeck Site-2 Diagram
Accessing the Holodeck Environment
User access to the Holodeck pod is via the Holo-Console. Access to Holo-Console is available via two paths:
Microsoft Remote Desktop Protocol (RDP) connection to the external IP of the Holo-Router. Holo-Router is configured to forward all RDP traffic to the instance of Holo-Console inside the pod.
Good (One pod): Single ESXi host with 16 cores, 384gb memory and 2TB SSD/NVME
Better (Two pod): Single ESXi host with 32 cores, 768gb memory and 4TB SSD/NVME
Best (Four or more pods): Single ESXi host with 64+ cores, 2.0TB memory and 10TB SSD/NVME
ESXi Host Configuration:
vSphere 7.0U3
Virtual switch and port group configured with uplinks to customer network/internet
Supports stand alone, non vCenter Server managed host and single host cluster managed by a vCenter server instance
Multi host clusters are NOT supported
Holo-Build host
Windows 2019 host or VM with local access to ESXI hosts used for Holodeck + internet access to download software. (This package has been tested on Microsoft Windows Server 2019 only)
I had a frustrating issue with Packer, specifically with VMware Tools installation.
During the Packer install, I load up a script and have VMware Tools 12.1.5 installed. It seems to install successfully, But I noticed that the VMTools service is not running. I have to re-run setup64.exe via the GUI and do a repair, then I see the service exist and runs, and Packer can discover the IP address of the VM to finish it.
The Solution
I used a older autounattend.xml which i never checked the time zone.
Setting the correcting time zone the trick:
Microsoft announced the addition of the Windows Server Hybrid Administrator Associate certification to our portfolio, to be released in early December 2021. This new certification validates the skills of administrators working in hybrid environments.
Administrators in this role support their teams and organizations using Windows Server—both in the cloud and on-premises/
The Windows Server Hybrid Administrator Associate certification
Issue The host goes into an un-responsive state due to: “Bootbank cannot be found at path ‘/bootbank” and boot device is in an APD state.
This issue is seen due to the boot device failing to respond & enter APD state (All paths down). Some cases, Host goes to non-responsive state & shows disconnected from vCenter.
As of 7.0 Update 1, the format of the ESX-OSData boot data partition has been changed. Instead of using FAT it is using a new format called VMFS-L. This new format allows much more and faster I/O to the partition. The level of read and write traffic is overwhelming and corrupting many less capable SD cards.
The action plan for future resolution would be to replace the SD card/s with a capable device/disk. Per the best practices mentioned on Installation guide.
The version 7.0 Update 2 VMware ESXi Installation and Setup Guide, page 19, specifically says “As even read-only workloads can cause problems on low-end flash devices, you should install ESXi only on high-endurance flash media“.
Figure 1: Holodeck Nested Diagram
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