Added Docker build action

.github/workflows/build_docker.yml

@@ -0,0 +1,21 @@
+name: docker-build
+
+on: workflow_dispatch
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build and export
+        uses: docker/build-push-action@v6
+        with:
+          tags: tribler:latest
+          outputs: type=docker,dest=/tmp/myimage.tar
+          file: build/docker/build.Dockerfile
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: myimage
+          path: /tmp/myimage.tar

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/*
+
+# Then, install pip dependencies so that it can be cached and does not
+# need to be built every time the source code changes.
+# This reduces the docker build time.
+COPY ./requirements.txt /app/tribler/requirements.txt
+RUN pip3 install -r /app/tribler/requirements.txt
+
+RUN useradd -ms /bin/bash user
+
+# Create default state and download directories and set the permissions
+RUN chown -R user:user /app
+RUN mkdir /state /downloads && chown -R user:user /state /downloads
+
+# Copy the source code and set the working directory
+COPY ./src /app/tribler/src/
+WORKDIR /app/tribler/
+
+ENV CORE_API_PORT=20100
+ENV TSTATEDIR=/state
+
+VOLUME /state
+VOLUME /downloads
+COPY ./build/docker/configuration.json /state/git/configuration.json
+
+USER user
+
+CMD exec python3 /app/tribler/src/run_tribler.py

build/docker/build.Dockerfile.dockerignore

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+.*
+build
+doc
+scripts
+
+src/run_unit_tests.py
+src/tribler/test_integration
+src/tribler/test_unit
+
+pyipv8/.*
+pyipv8/*.md
+pyipv8/*.ini
+pyipv8/create_setup_taskmanager.py
+pyipv8/create_test_coverage_report.py
+pyipv8/github_increment_version.py
+pyipv8/run_all_tests.py
+pyipv8/setup.py
+pyipv8/doc
+pyipv8/scripts
+pyipv8/stresstest
+pyipv8/systemd
+pyipv8/ipv8/test

build/docker/configuration.json

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+{
+    "api": {
+        "http_host": "127.0.0.1",
+        "https_host": "127.0.0.1"
+    },
+    "ipv8": {
+        "interfaces": [
+            {
+                "interface": "UDPIPv4",
+                "ip": "0.0.0.0",
+                "port": 7759,
+                "worker_threads": 8
+            },
+            {
+                "interface": "UDPIPv6",
+                "ip": "::",
+                "port": 7760
+            }
+        ]
+    },
+    "libtorrent": {
+        "port": 0,
+        "download_defaults": {
+            "saveas": "/downloads"
+        }
+    },
+    "state_dir": "/state"
+}