ACR部署Windows容器到AKS失败：容器与主机操作系统不匹配

Let's break down why you're hitting this error and walk through the fixes step by step:

Root Cause #

Windows containers have a strict compatibility rule: the container's Windows kernel version must match the host node's kernel version (or belong to the same release channel). Looking at your node details:

akssample000000 Ready agent 2d2h v1.14.0 10.240.0.35 Windows Server Datacenter 10.0.17763.379 docker://18.9.2

Your Windows node runs Windows Server 2019 (LTSC 2019, build 17763.379). The microsoft/iis:latest image you used defaults to the newest Windows Server release (likely Windows Server 2022, build 20348+), which has a mismatched kernel version—this is exactly what's triggering the error.

Step-by-Step Solution #

1. Use a Windows Server 2019-compatible IIS base image #

Replace the generic microsoft/iis:latest in your Dockerfile with an image built specifically for Windows Server 2019 LTSC. Microsoft maintains official tagged images for this:

# IIS image optimized for Windows Server 2019 LTSC
FROM mcr.microsoft.com/windows/servercore/iis:windowsservercore-ltsc2019
SHELL ["powershell"]
RUN Install-WindowsFeature NET-Framework-45-ASPNET ; \
    Install-WindowsFeature Web-Asp-Net45
# Fixed path mismatch: original COPY used "ewims" but website targeted "c:\sample"
COPY . c:\sample
RUN Remove-WebSite -Name 'Default Web Site'
RUN New-Website -Name 'sample' -Port 80 \
    -PhysicalPath 'c:\sample' -ApplicationPool '.NET v4.5'
EXPOSE 80

Note: I corrected a path inconsistency in your original Dockerfile—you copied files to ewims but configured the website to use c:\sample, which would have caused another error even after fixing the OS mismatch.

2. Rebuild and push the updated image to ACR #

# Build the new image with an updated version tag
docker build -t samplecloud.azurecr.io/sample:v2 .

# Authenticate to your Azure Container Registry
az acr login --name samplecloud

# Push the image to ACR
docker push samplecloud.azurecr.io/sample:v2

3. Update your deployment YAML #

Modify the image field in your Deployment spec to use the new v2 image:

containers:
- name: samplecloudpoc-v1
  image: samplecloud.azurecr.io/sample:v2  # Updated to the compatible image version
  ports:
  - containerPort: 80
  # ... rest of your container configuration remains unchanged

4. Redeploy to AKS #

kubectl apply -f your-deployment-file.yaml

Quick Validation Checks #

• Your nodeSelector: beta.kubernetes.io/os: windows is correct for Kubernetes 1.14 (newer versions use kubernetes.io/os: windows, but this works for your cluster).
• The Docker runtime version (18.9.2) on your Windows node is fully compatible with Windows Server 2019 containers, so no changes are needed there.

内容的提问来源于stack exchange，提问作者Hub