Added Docker build action (#8108)

.github/workflows/build_docker.yml

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+name: Publish Docker Image
+
+on: workflow_dispatch
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+
+    # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.ref_name }}
+          fetch-depth: 0
+          submodules: 'true'
+          fetch-tags: 'true'
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Git Tag Version
+        id: git_tag_version
+        run: |
+          echo "VERSION=$(git describe --tags)" >> $GITHUB_ENV
+
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: build/docker/build.Dockerfile
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.VERSION }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          build-args: |
+            GIT_BRANCH=${{ github.ref_name }}
+            GIT_REPO=https://github.com/${{ github.repository }}
+
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v1
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true

build/docker/build.Dockerfile

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+# libtorrent-1.2.19 does not support python 3.11 yet
+FROM python:3.10-slim
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends libsodium23=1.0.18-1 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Xvfb for headless GUI
+RUN apt-get update -y \
+  && apt-get -y install \
+    xvfb nodejs npm git \
+  && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
+# Set up a user in the container
+RUN useradd -ms /bin/bash --home-dir /home/user user
+USER user
+
+# Clone the repository with arguments
+ARG GIT_REPO=${GIT_REPO:-"https://github.com/tribler/tribler.git"}
+ARG GIT_BRANCH=${GIT_BRANCH:-"main"}
+RUN echo "Cloning $GIT_REPO on branch $GIT_BRANCH"
+RUN git clone --recursive --branch "$GIT_BRANCH" "$GIT_REPO" /home/user/tribler
+
+# Install NPM dependencies
+WORKDIR /home/user/tribler/src/tribler/ui
+RUN npm install \
+    && npm run build
+
+# Install Python dependencies
+WORKDIR /home/user/tribler
+RUN pip3 install -r requirements.txt
+
+# Set IPv8 on pythonpath
+ENV PYTHONPATH=pyipv8
+
+# Run the application using Xvfb
+CMD xvfb-run python3 src/run_tribler.py

build/docker/compose.yml

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+
+services:
+  tribler:
+    image: ghcr.io/tribler/tribler:latest
+    network_mode: host
+    environment:
+      CORE_API_PORT: 8085
+      CORE_API_KEY: "changeme"
+    volumes:
+      - ~/.Tribler/git:/home/user/.Tribler
+      - ~/Downloads/TriblerDownloads:/home/user/Downloads/TriblerDownloads