OS

• Server 2022, Server 2019, Server 2016
• Windows 10 Pro, 11 Pro

Memory requirements

# Launch a container and run basic commands (ipconfig, dir, and so on)

Windows Server 2016 Server Core

• Windows Server container: 50 MB     
• Hyper-V isolation: 325 MB + 1 GB Pagefile

Container Base Images

• Windows
• Windows Server
• Windows Server Core
• Nano Server

Isolation

• Process(--isolation=process)  # Default
• Hyper-V(--isolation=hyperv)

Containers License

* Windows Server and SQL Server are licensed differently

* isolation=hyperv 相當於跟 Hyper-V License

Hyper-V isolation(vmwp process)

"virtual" computers Microsoft calls them "OSEs"

Containers with "Hyper-V isolation" create virtual machines,

    therefore, they require Windows Server licenses the same way regular virtual machines would.

Server & CPU License

• A minimum of 8 core licenses is required for each physical processor and
• A minimum of 16 core licenses is required for each server.
• Core licenses are sold in packs of two. (each pack contains two licenses)
  => 一架機最小買 8 pack Core License, 即使它只有 1 CPU (4Core)
• Standard Edition provides rights for up to 2 Operating System Environments
  (2 virtual machines, plus one Hyper-V host per license)
  For each additional 1 or 2 VMs, all the physical cores in the server must be licensed again.
   * Standard edition is licensed under the Per Core/CAL* license model
  => requires a Windows Server CAL for access to the server.

Summary

Host OS: Windows Server Standard

Windows Server 2022 Standard - 16 Core License Pack + 10 CALS    USD$1,680
Windows Server 2022 Standard - 16 Core License Pack + 5 CALS      USD$1,463

• Process-isolated container limit: Unlimited
• Hyper-V-isolated container limit: 2