philippgille/dotnet-libglib repository overview

⁠.NET Core SDK Docker image with libglib2.0-0

Docker image for building .NET Core applications including libglib2.0-0 for building executable AppImage⁠ packages.

⁠Supported tags and respective Dockerfile links

• 1.1.5-sdk-jessie, 1.1.5-sdk, 1.1-sdk, 1-sdk (1.1/jessie/Dockerfile)⁠
• 2.0.3-sdk-stretch, 2.0-sdk-stretch, 2.0.3-sdk, 2.0-sdk, 2-sdk, sdk, latest (2.0/stretch/amd64/Dockerfile)⁠
• 2.0.3-sdk-jessie, 2.0-sdk-jessie, 2-sdk-jessie (2.0/jessie/amd64/Dockerfile)⁠
• 2.1.0-preview1-sdk-stretch, 2.1-sdk-stretch, 2.1.0-preview1-sdk, 2.1-sdk (2.1/stretch/amd64/Dockerfile)⁠
• 2.1.0-preview1-sdk-jessie, 2.1-sdk-jessie, (2.1/jessie/amd64/Dockerfile)⁠

⁠Usage

Assuming you have a build script that builds the .NET Core app as well as the AppImage:

docker run --rm \
    -v /path/to/source/:/app \
    -w /app \
    philippgille/dotnet-libglib:2.0-sdk \
    bash -c "./build.sh"

⁠Details

When you build your .NET Core applications in a Docker container and also want to create executable AppImage packages for Linux, you need to install libglib2.0-0 in your container. The reason for this is that AppImages require FUSE to be installed (see AppImage/AppImageKit/wiki/FUSE⁠), but FUSE doesn't work in Docker containers, so you can't just run the appimagetool-x86_64.AppImage. Instead, you need to extract the AppImage with appimagetool-x86_64.AppImage --appimage-extract and then you can run ./squashfs-root/AppRun /path/to/your/AppDir/ /path/to/your/app.AppImage. This extraction is what requires libglib2.0-0. Now, if your build container is ephemeral (--rm), you have to install libglib2.0-0 each time you create a new container.

For example, in one of my other repositories I had a build script called build-with-docker.sh. Its content was:

#!/bin/bash

set -euxo pipefail

SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

docker run --rm \
    -v $SCRIPTDIR/../:/app \
    -w /app \
    microsoft/dotnet:2.0-sdk \
    bash -c "apt update && apt install -y --no-install-recommends libglib2.0-0 && ./scripts/build.sh"

Each time I ran build-with-docker.sh, the apt update and apt install commands took a lot of time and lead to unnecessary data traffic.

That's why I built this Docker image, where libglib2.0-0 is already installed. Nothing else gets installed, so it's the original microsoft/dotnet⁠ .NET Core SDK images, just with an added libglib2.0-0.