dotnet-sdk-extended

Extended .NET SDK Docker image with sqlcmd, Node.js, and additional utilities

Overview

dotnet-sdk-extended is a Docker image based on Microsoft’s mcr.microsoft.com/dotnet/sdk. It adds commonly needed build-time tools so your .NET builds run faster and more reliably in CI.

Included tools:

• Node.js (with npm)
• sqlcmd (cross-platform)

Image registry:

• ghcr.io/posinformatique/dotnet-sdk-extended

Why this image?

• Faster CI builds: downloading Node.js and sqlcmd during each pipeline run can take minutes. This image bakes them in to reduce setup time and flakiness.

Tags

• Exact SDK versions:
  • 9.0.306
• Moving major tag: 9.0 (points to the latest 9.0.x, currently 9.0.306)

Tool versions

• Node.js: v22.20.0 (LTS)
• npm: 10.9.3
• sqlcmd: 1.5.0

Environment variables

The image exposes the installed versions via:

• NPM_VERSION
• NODE_VERSION
• SQLCMD_VERSION

These can be inspected in your CI steps if needed.

Usage in CI

GitHub Actions

Replace the default job container with this image to build .NET apps and run Node/npm/sqlcmd without extra installs.

• Example 1: Use the floating major tag

name: build

on:
  push:
    branches: [ main ]
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: ghcr.io/posinformatique/dotnet-sdk-extended:9.0
    steps:
      - uses: actions/checkout@v4
      - name: Check tool versions
        run: |
          echo "Node: $NODE_VERSION"
          echo "npm: $NPM_VERSION"
          echo "sqlcmd: $SQLCMD_VERSION"
      - name: Restore
        run: dotnet restore
      - name: Build
        run: dotnet build --configuration Release --no-restore
      - name: Test
        run: dotnet test --configuration Release --no-build --verbosity normal

• Example 2: Pin to an exact SDK version

jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: ghcr.io/posinformatique/dotnet-sdk-extended:9.0.306
    steps:
      - uses: actions/checkout@v4
      - run: dotnet build --configuration Release

Azure Pipelines

Use the container at the job level to run your .NET build within this image.

• Example 1: Use the floating major tag

trigger:
- main

pool:
  vmImage: 'ubuntu-latest'

jobs:
- job: Build
  displayName: Build
  container: ghcr.io/posinformatique/dotnet-sdk-extended:9.0
  steps:
  - checkout: self
  - script: |
      echo "Node: $NODE_VERSION"
      echo "npm: $NPM_VERSION"
      echo "sqlcmd: $SQLCMD_VERSION"
    displayName: Check tool versions
  - script: dotnet restore
    displayName: Restore
  - script: dotnet build --configuration Release --no-restore
    displayName: Build
  - script: dotnet test --configuration Release --no-build --verbosity normal
    displayName: Test

• Example 2: Pin to an exact SDK version

jobs:
- job: Build
  container: ghcr.io/posinformatique/dotnet-sdk-extended:9.0.306
  steps:
  - checkout: self
  - script: dotnet build --configuration Release
    displayName: Build

Notes

• The base is the official .NET SDK image; only build-time tools are added.
• Prefer the exact tag (e.g., 9.0.306) for reproducible builds; use 9.0 for convenience and automatic updates within the major line.