Testing

Author: Sune Bøegh

.github/workflows/build-action.yml

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+name: ci
+
+on:
+  push:
+    branches:
+      - "**"
+    tags:
+      - "v*.*.*"
+  pull_request:
+    branches:
+      - "main"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: "Test"
+        run: echo "hello world"
+      # - name: Docker meta
+      #   id: meta
+      #   uses: docker/metadata-action@v4
+      #   with:
+      #     images: |
+      #       ${{ vars.DOCKER_REGISTRY }}/${{ vars.DOCKER_IMAGE_NAME }}
+      #     tags: |
+      #       type=ref,event=branch
+      #       type=ref,event=pr
+      #       type=semver,pattern={{version}}
+      # - name: Set up QEMU
+      #   uses: docker/setup-qemu-action@v2
+      # - name: Set up Docker Buildx
+      #   uses: docker/setup-buildx-action@v2
+      # - name: Login to Docker Hub
+      #   if: github.event_name != 'pull_request'
+      #   uses: docker/login-action@v2
+      #   with:
+      #     username: ${{ secrets.DOCKERHUB_USERNAME }}
+      #     password: ${{ secrets.DOCKERHUB_TOKEN }}
+      # - name: Build and push
+      #   uses: docker/build-push-action@v4
+      #   with:
+      #     context: .
+      #     push: ${{ github.event_name != 'pull_request' }}
+      #     tags: ${{ steps.meta.outputs.tags }}
+      #     labels: ${{ steps.meta.outputs.labels }}

.gitignore

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+push-downstream.sh

Dockerfile

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+FROM mcr.microsoft.com/dotnet/aspnet:N.0-alpine AS base
+
+RUN addgroup --gid 1737 -S dotnet && adduser --uid 1737 -S dotnet -G dotnet \
+  && apk add --no-cache dumb-init
+
+COPY start.sh /bin/start.sh
+RUN chmod +x /bin/start.sh
+
+WORKDIR /app
+RUN chown dotnet /app
+
+USER dotnet
+CMD ["dumb-init", "/bin/start.sh"]

LICENSE

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+MIT License
+
+Copyright (c) 2023 boeegh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1 +1,22 @@
-# dotnet-runx
+# dotnet-run-N
+Lightweight (Alpine) based .NET Framework N runtime container with a few tweaks:
+
+* Uses [dumb-init](https://github.com/Yelp/dumb-init) to ensure proper signalling
+* Automatically attempts to find and start proper dll
+* Run as `dotnet` (uid/gid: 1737) user/group
+
+Note: It's assumed that the application is [framework-dependent](https://learn.microsoft.com/en-us/dotnet/core/deploying/), and so is _not_ built as a self-contained deployment.
+
+## Usage
+```powershell
+# run the .net vN web app in the current directory (browse using http://localhost:8123)
+docker run -p 8123:80 --rm -v ${PWD}:/app boeegh/dotnet-run-N
+
+# run the .net app in the current directory
+docker run --rm -v ${PWD}:/app boeegh/dotnet-run-N
+
+# manually specify the dll to run (the default .NET image behaviour)
+docker run -v ${PWD}:/app boeegh/dotnet-run-N dotnet ./MyApp.dll
+```
+
+_Please note this is an experimental image that may... explode at any time. Use with caution. Or not at all._

start.sh

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+#!/bin/sh
+
+# web: will run as website, if web.config is present use info from that
+appDll=$(grep -so -E '([^\"]*)\.dll' web.config)
+if [ ! $appDll ]
+then
+  # app: find any executable, assume main dll has same name
+  app=$(find . -type f -perm -u+x)  
+  if [ $app ]
+  then
+    appDll="$app.dll"
+  fi
+fi
+
+# todo: support for enforcing ownership of non-root user?
+
+# no dll found?
+if [ ! $appDll ] || [ ! -f $appDll ]
+then
+  notFound=$([ $appDll ] && echo "Identified main dll as $appDll, however it was not found.")
+  echo -e "Unable to autostart application dll (alpine will not execute binary). $notFound\n"
+  echo "Listing files present in $PWD:"
+  ls .
+  echo -e "\nYou can start the application manully using: dotnet [ dll-name ]"
+  return
+fi
+
+# start dll
+dotnet $appDll