From 4123ec4ef309eafc70dcdf5c4a1a1f62ac402dac Mon Sep 17 00:00:00 2001
From: Klas Broberg <klas.broberg@gmail.com>
Date: Mon, 15 Sep 2025 13:30:18 +0200
Subject: [PATCH] Initial commit

---
 .gitea/workflows/docker-build.yml | 28 ++++++++++++
 Dockerfile                        | 33 ++++++++++++++
 README.md                         | 76 +++++++++++++++++++++++++++++++
 3 files changed, 137 insertions(+)
 create mode 100644 .gitea/workflows/docker-build.yml
 create mode 100644 Dockerfile
 create mode 100644 README.md

diff --git a/.gitea/workflows/docker-build.yml b/.gitea/workflows/docker-build.yml
new file mode 100644
index 0000000..0faa924
--- /dev/null
+++ b/.gitea/workflows/docker-build.yml
@@ -0,0 +1,28 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+    - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    - name: Log in to Docker registry
+      uses: docker/login-action@v2
+      with:
+        registry: git.pitan.net
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v4
+      with:
+        context: .
+        file: ./Dockerfile
+        push: true
+        tags: git.pitan.net/${{ github.repository }}:latest
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..a95e64a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,33 @@
+FROM docker.io/gitea/act_runner:latest
+
+# Switch to root to install packages
+USER root
+
+# Update package lists and install prerequisites
+RUN apt-get update && apt-get install -y \
+    wget \
+    apt-transport-https \
+    software-properties-common \
+    && rm -rf /var/lib/apt/lists/*
+
+# Add Microsoft package repository and install .NET SDK
+RUN wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
+    && dpkg -i packages-microsoft-prod.deb \
+    && rm packages-microsoft-prod.deb \
+    && apt-get update \
+    && apt-get install -y dotnet-sdk-9.0 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Verify .NET installation
+RUN dotnet --version
+
+# Switch back to the original user (if act_runner has a specific user)
+# Check what user the base image uses
+RUN id
+
+# Set environment variables for .NET
+ENV DOTNET_ROOT=/usr/share/dotnet
+ENV PATH=$PATH:/usr/share/dotnet
+
+# Keep the original entrypoint from act_runner
+# The base image will handle the act_runner functionality
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0c245ed
--- /dev/null
+++ b/README.md
@@ -0,0 +1,76 @@
+# Gitea .NET Runner Docker Image
+
+This project creates a Docker image that extends the `gitea/act_runner:latest` base image with the latest .NET SDK installed.
+
+## Overview
+
+The Docker image includes:
+- Base: `gitea/act_runner:latest` - Gitea Actions runner
+- .NET SDK 9.0 (latest) - For building and running .NET applications
+- All dependencies required for .NET development
+
+## Files
+
+- `Dockerfile` - Docker image definition
+- `build.sh` - Script to build the Docker image
+- `push.sh` - Script to push the image to your local Gitea registry
+- `README.md` - This documentation
+
+## Usage
+
+### Building the Image
+
+```bash
+./build.sh
+```
+
+This will:
+1. Build the Docker image locally as `gitea-dotnet-runner:latest`
+2. Tag it for your Gitea registry as `git.pitan.net/klas/gitea-dotnet-runner:latest`
+
+### Pushing to Gitea Registry
+
+```bash
+./push.sh
+```
+
+This will:
+1. Login to your Gitea registry (you'll be prompted for credentials)
+2. Push the image to `git.pitan.net/klas/gitea-dotnet-runner:latest`
+
+### Using the Image
+
+Once pushed to your Gitea registry, you can use this image in your Gitea Actions workflows:
+
+```yaml
+name: .NET Build
+on: [push]
+
+jobs:
+  build:
+    runs-on: self-hosted
+    container: git.pitan.net/klas/gitea-dotnet-runner:latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --no-restore
+      - name: Test
+        run: dotnet test --no-build --verbosity normal
+```
+
+## Configuration
+
+The scripts use these default values:
+- Image name: `gitea-dotnet-runner`
+- Registry: `git.pitan.net`
+- Username: `klas`
+
+You can modify these values in the `build.sh` and `push.sh` scripts if needed.
+
+## Requirements
+
+- Docker installed and running
+- Access to your Gitea registry at `git.pitan.net`
+- Internet connection for downloading base images and .NET SDK