Docker/Windows

Windows Containers GitHub

Github microsoft/Windows-Containers
https://github.com/microsoft/Windows-Containers

Install Docker Community Edition

Docker Community Edition (CE) provides a standard runtime environment for containers with a common API and command-line interface (CLI). It is managed by the open source community as part of the Moby Project.

Invoke-WebRequest -UseBasicParsing "https://raw.githubusercontent.com/microsoft/Windows-Containers/Main/helpful_tools/Install-DockerCE/install-docker-ce.ps1" -o install-docker-ce.ps1
.\install-docker-ce.ps1

src:

https://raw.githubusercontent.com/microsoft/Windows-Containers/Main/helpful_tools/Install-DockerCE/install-docker-ce.ps1

---

Get started: Prep Windows for containers
https://learn.microsoft.com/en-us/virtualization/windowscontainers/quick-start/set-up-environment?tabs=dockerce

Docker Engine on Windows
https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-docker/configure-docker-daemon

Install Docker Community Edition (CE) reference:

Prepare Windows operating system containers | Microsoft Learn
https://learn.microsoft.com/en-us/virtualization/windowscontainers/quick-start/set-up-environment?tabs=dockerce#windows-server-1

Install Docker Server Edition

Just like Community Edition, but allows for Linux containers

Enable containers:

Enable-WindowsOptionalFeature -Online -FeatureName Containers

Reboot:

Restart-Computer -Force

Install Docker:

Install-Module -Name DockerMsftProvider -Repository PSGallery -Force

Install-Package -Name docker -ProviderName DockerMsftProvider 

Restart:

Restart-Computer -Force

Start service:

Start-Service Docker

Stop-Service Docker

Get-Service docker

Server core:

# 2022
docker pull mcr.microsoft.com/windows/servercore:ltsc2022

# 2019
docker pull mcr.microsoft.com/windows/servercore:ltsc2019

Run Linux Containers (Nested):

Get-VM WinContainerHost | Set-VMProcessor -ExposeVirtualizationExtensions $true

[Environment]::SetEnvironmentVariable("LCOW_SUPPORTED", "1", "Machine")

Restart-Service docker

daemon.conf:

$configfile = @”
{
    “experimental”: true
}
“@

$configfile|Out-File -FilePath C:\ProgramData\docker\config\daemon.json -Encoding ascii -Force

LCOW:

Invoke-WebRequest -Uri "https://github.com/linuxkit/lcow/releases/download/v4.14.35-v0.3.9/release.zip" -UseBasicParsing -OutFile release.zip
Expand-Archive release.zip -DestinationPath "$Env:ProgramFiles\Linux Containers\."

Run ubuntu:

docker run -it --rm ubuntu /bin/bash

Switch back to Windows Containers:

[Environment]::SetEnvironmentVariable("LCOW_SUPPORTED", "$null", "Machine")

refs:

Docker: Ejecutar containers Linux en Windows Server 2022 - Blog Virtualizacion
https://www.maquinasvirtuales.eu/docker-ejecutar-containers-linux-en-windows-server-2022/

Run Docker on Windows Server 2019 / 2022 | ComputingForGeeks
https://computingforgeeks.com/how-to-run-docker-containers-on-windows-server/

Windows Test Image

Hello World:

docker run hello-world:nanoserver

Something more ambition - try run powershell:

docker run -it mcr.microsoft.com/windows/servercore:ltsc2022 powershell

Config

C:\programdata\docker\config\daemon.json

dockerd | Docker Docs
https://docs.docker.com/reference/cli/dockerd/#/windows-configuration-file

ref:

• Configure Docker in Windows | Microsoft Learn - https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-docker/configure-docker-daemon

Isolation

Configure container isolation technology (Windows)
https://docs.docker.com/reference/cli/dockerd/#configure-container-isolation-technology-windows

For Windows containers, you can specify the default container isolation technology to use, using the --exec-opt isolation flag.

The following example makes hyperv the default isolation technology:

dockerd --exec-opt isolation=hyperv
dockerd --exec-opt isolation=process

If no isolation value is specified on daemon start, on Windows client, the default is hyperv, and on Windows server, the default is process.

Isolation

Windows Server Containers use Hyper-V isolation by default on Windows 10 and 11 to provide developers with the same kernel version and configuration that will be used in production.

Switch to Windows Containers

& $Env:ProgramFiles\Docker\Docker\DockerCli.exe -SwitchDaemon .

Service

See service:

sc qc docker

Service is running as: docker

C:\WINDOWS\system32\dockerd.exe --run-service --service-name docker

Add a Docker Group to allow normal users to manage docker: (run as administrator)

net localgroup docker-users /add

Add user to group:

net localgroup docker-users [USER] /add

Update service to use docker-users group:

# -G, --group string  Group for the unix socket (default "docker")
sc config docker binPath="C:\WINDOWS\system32\dockerd.exe --run-service --service-name docker -G docker-users"

sc config docker binPath="C:\Windows\System32\dockerd.exe --run-service --config-file=C:\ProgramData\docker\config\daemon.json"

Restart service:

net stop docker
net start docker

See updated service:

C:\> sc qc docker
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: docker
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\WINDOWS\system32\dockerd.exe --run-service --service-name docker -G docker-users
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Docker Engine
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

daemon.json option:

C:\ProgramData\docker\config\daemon.json

{
  "registry-mirrors": ["https://internal-docker-mirror:6609"],
  "group": "docker-users",
  "debug": true,
  "hosts": ["npipe://", "tcp://0.0.0.0:2375"],
  "experimental": false,
  "exec-opts": ["isolation=process"],
  "max-concurrent-downloads": 100,
  "max-concurrent-uploads": 100,
  "data-root": "C:\\docker_data",
  "storage-opts" : [ "size=200G" ]
}

Moby Project

Moby Project
https://mobyproject.org/

What is Moby?
Moby is an open framework created by Docker to assemble specialized container systems without reinventing the wheel. It provides a “lego set” of dozens of standard components and a framework for assembling them into custom platforms.

Uninstall Docker

See https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-docker/configure-docker-daemon

Docker in WSL

See Docker/Docker in WSL