Add Dockerfile and github docker workflow pushing to ghcr.io (#1)

.github/workflows/docker.yml

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+name: Docker
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  docker:
+    runs-on: ubuntu-22.04
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Build and Push Docker Image
+      uses: mr-smithers-excellent/docker-build-push@v6
+      with:
+        image: rosbe-unix-release-engineering
+        dockerfile: Docker/Dockerfile
+        registry: ghcr.io
+        addLatest: true
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}

Docker/Dockerfile

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+FROM ubuntu:24.04
+LABEL org.opencontainers.image.authors="Mark Jansen <mark.jansen@reactos.org>"
+LABEL Description="RosBE-Unix on Ubuntu with Release Engineering scripts"
+
+WORKDIR /work
+
+# The settings `DEBIAN_FRONTEND="noninteractive" TZ="Europe/Amsterdam"` are for `texinfo`
+RUN apt-get update -y \
+    && apt-get upgrade -y \
+    && DEBIAN_FRONTEND="noninteractive" TZ="Europe/Amsterdam" apt-get install -y \
+        bison \
+        build-essential \
+        flex \
+        git \
+        nano \
+        p7zip-full \
+        pkg-config \
+        python-is-python3 \
+        python3 \
+        texinfo \
+        wget \
+        zip \
+        zlib1g-dev \
+        && rm -rf /var/lib/apt/lists/*
+
+RUN wget https://downloads.sourceforge.net/reactos/RosBE-Unix-2.2.1.tar.bz2 \
+    && tar -xjf RosBE-Unix-2.2.1.tar.bz2 \
+    && rm RosBE-Unix-2.2.1.tar.bz2 \
+    && cd RosBE-Unix-2.2.1 \
+    && echo yes | bash RosBE-Builder.sh /usr/local/RosBE \
+    && cd .. \
+    && rm -rf RosBE-Unix-2.2.1
+
+RUN git clone https://github.com/reactos/Release_Engineering \
+
+    && mv Release_Engineering/Release_* /usr/local/bin \
+    && rm -rf Release_Engineering
+
+CMD ["/usr/local/RosBE/RosBE.sh", "/work"]

Docker/README.md

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+# RosBE-Unix on Ubuntu with Release Engineering scripts
+
+Normally this docker container can be used from ghcr.io
+
+Below steps outline the process of running it locally.
+
+## Building the container
+
+ - Create an image named `reactos-base`:
+    - `docker build --pull --rm -f "Dockerfile" -t reactos-base "."`
+ - Create a container named `reactos-builder` from the `reactos-base` image
+    - `docker run --name reactos-builder -it reactos-base`
+    - `exit` to close the container
+
+## Running the container
+
+ - Run the `reactos-builder`:
+    - `docker start reactos-builder`
+ - Show all docker containers:
+    - `docker ps`
+ - Attach to the running `reactos-builder`:
+    - `docker attach 03e11af06800` (where `03e11af06800` is the `CONTAINER ID` from the running container)
+
+## Building a release
+
+```bash
+Release_Configure
+# Answer the prompts
+Release_ISOs
+Release_Source
+```

README.md

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+# Release Engineering
+
+This repository contains the scripts used to create ReactOS release images
+
+The docker image is created from the [Docker](Docker) folder.