Initial Version for .NET 9.0.100

.github/CODEOWNERS

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+# These owners will be the default owners for everything in the repo and
+# will be requested for review when someone opens a pull request.
+*       @swissgrc/dev-infra

.github/renovate.json

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+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "github>swissgrc/renovate-presets:docker"
+  ],
+  "packageRules": [
+    {
+      "matchDepNames": [ "dotnet/sdk" ],
+      "description": "No .NET SDK Major Updates",      
+      "extends": [ ":disableMajorUpdates" ]
+    }
+  ]
+}

.github/workflows/linter.yml

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+name: Lint Code Base
+
+on:
+  pull_request:
+    branches: [develop]
+
+jobs:
+  lint-image:
+    name: Lint Code Base
+    uses: swissgrc/.github/.github/workflows/lint-image.yml@main
+    secrets:
+      gh-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/publish.yml

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+name: Build
+
+on:
+  push:
+    branches: [develop]
+  release:
+    types: [published]
+  pull_request:
+    branches: [develop]
+
+jobs:
+  publish-image:
+    name: Build and push Docker image
+    uses: swissgrc/.github/.github/workflows/publish-image.yml@main
+    with:
+      image-name: swissgrc/azure-pipelines-dotnet
+      default-latest-tag: true
+      additional-latest-tag-name: 9
+      default-unstable-tag: true
+      additional-unstable-tag-name: 9-unstable
+    secrets:
+      gh-token: ${{ secrets.GITHUB_TOKEN }}
+      docker-username: ${{ secrets.DOCKER_USERNAME }}
+      docker-password: ${{ secrets.DOCKER_PASSWORD }}

.github/workflows/sonarcloud.yml

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+name: SonarCloud
+on:
+  push:
+    branches:
+      - develop
+  pull_request:
+    types: [opened, synchronize, reopened]
+jobs:
+  sonarcloud:
+    name: SonarCloud
+    uses: swissgrc/.github/.github/workflows/sonarcloud.yml@main
+    secrets:
+      gh-token: ${{ secrets.GITHUB_TOKEN }}
+      sonar-token: ${{ secrets.SONAR_TOKEN }}

Dockerfile

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+# Base image containing dependencies used in builder and final image
+FROM ghcr.io/swissgrc/azure-pipelines-git:2.47.0 AS base
+
+# Make sure to fail due to an error at any stage in shell pipes
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+# Builder image
+FROM base AS build
+
+# Make sure to fail due to an error at any stage in shell pipes
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+# Add .NET PPA
+ADD https://packages.microsoft.com/config/debian/12/packages-microsoft-prod.deb /tmp/packages-microsoft-prod.deb
+RUN  dpkg -i /tmp/packages-microsoft-prod.deb && \
+  rm -rf /tmp/*
+
+# Final image
+FROM base AS final
+
+LABEL org.opencontainers.image.vendor="Swiss GRC AG"
+LABEL org.opencontainers.image.authors="Swiss GRC AG <opensource@swissgrc.com>"
+LABEL org.opencontainers.image.title="azure-pipelines-dotnet"
+LABEL org.opencontainers.image.documentation="https://github.com/swissgrc/docker-azure-pipelines-dotnet-9"
+
+# Make sure to fail due to an error at any stage in shell pipes
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+WORKDIR /
+# Copy .NET keyring
+COPY --from=build /usr/share/keyrings/microsoft-prod.gpg /usr/share/keyrings/microsoft-prod.gpg
+COPY --from=build /etc/apt/sources.list.d/ /etc/apt/sources.list.d
+
+# Install .NET 9
+
+# renovate: datasource=github-tags depName=dotnet/sdk extractVersion=^v(?<version>.*)$
+ENV DOTNET_VERSION=9.0.100
+
+ENV \
+    # Do not show first run text
+    DOTNET_NOLOGO=true \
+    DOTNET_SKIP_FIRST_TIME_EXPERIENCE=true \
+    # Disable telemetry
+    DOTNET_CLI_TELEMETRY_OPTOUT=true \
+    # Enable correct mode for dotnet watch (only mode supported in a container)
+    DOTNET_USE_POLLING_FILE_WATCHER=true \
+    # Skip extraction of XML docs - generally not useful within an image/container - helps performance
+    NUGET_XMLDOC_MODE=skip
+
+RUN apt-get update -y && \
+  # Install .NET 9
+  apt-get install -y --no-install-recommends dotnet-sdk-9.0=${DOTNET_VERSION}-1 && \
+  # Clean up
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/* && \
+  # Smoke test
+  dotnet --version

README.md

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 # Docker image for running .NET 9 in an Azure Pipelines container job
 
+<!-- markdownlint-disable MD013 -->
+[![License](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)](https://github.com/swissgrc/docker-azure-pipelines-dotnet-9/blob/main/LICENSE) [![Build](https://img.shields.io/github/actions/workflow/status/swissgrc/docker-azure-pipelines-dotnet-9/publish.yml?branch=develop&style=flat-square)](https://github.com/swissgrc/docker-azure-pipelines-dotnet-9/actions/workflows/publish.yml) [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=swissgrc_docker-azure-pipelines-dotnet-9&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=swissgrc_docker-azure-pipelines-dotnet-9) [![Pulls](https://img.shields.io/docker/pulls/swissgrc/azure-pipelines-dotnet.svg?style=flat-square)](https://hub.docker.com/r/swissgrc/azure-pipelines-dotnet) [![Stars](https://img.shields.io/docker/stars/swissgrc/azure-pipelines-dotnet.svg?style=flat-square)](https://hub.docker.com/r/swissgrc/azure-pipelines-dotnet)
+<!-- markdownlint-restore -->
+
 🐳 Docker image to run .NET 9 in [Azure Pipelines container jobs].
+The image contains also Docker CLI to access Docker engine on the agent.
+
+## Usage
+
+This image can be used to run .NET 9 in [Azure Pipelines container jobs].
+
+### Azure Pipelines Container Job
+
+To use the image in an Azure Pipelines Container Job, add one of the following example tasks and use it with the `container` property.
+
+The following example shows the container used for a deployment step which shows .NET version:
+
+```yaml
+  - stage: deploy
+    jobs:
+      - deployment: runDotNet
+        container: swissgrc/azure-pipelines-dotnet:9
+        environment: smarthotel-dev
+        strategy:
+          runOnce:
+            deploy:
+              steps:
+                - bash: |
+                    dotnet --version
+```
+
+### Tags
+
+| Tag        | Description                                                                                     | Base Image                         | .NET SDK | Size                                                                                                                              |
+|------------|-------------------------------------------------------------------------------------------------|------------------------------------|----------|-----------------------------------------------------------------------------------------------------------------------------------|
+| unstable   | Latest unstable release (from `develop` branch)                                                 | swissgrc/azure-piplines-git:2.47.0 | 9.0.100  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-dotnet/unstable?style=flat-square)   |
+| 9-unstable | Identical to `unstable` tag                                                                     |                                    |          | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-dotnet/9-unstable?style=flat-square) |
 
 [Azure Pipelines container jobs]: https://docs.microsoft.com/en-us/azure/devops/pipelines/process/container-phases

sonar-project.properties

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+sonar.projectKey=swissgrc_docker-azure-pipelines-dotnet-9
+sonar.organization=swissgrc-opensource
+
+# This is the name and version displayed in the SonarCloud UI.
+sonar.projectName=docker-azure-pipelines-dotnet-9
+#sonar.projectVersion=1.0
+
+# Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.
+#sonar.sources=.
+
+# Encoding of the source code. Default is default system encoding
+#sonar.sourceEncoding=UTF-8