Create Dockerfile

Dockerfile

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+FROM ubuntu:22.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install dependencies + GitHub runner
+RUN apt-get update && apt-get install -y \
+    curl jq git sudo ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /runner
+
+# Download GitHub Actions runner
+RUN curl -L https://github.com/actions/runner/releases/download/v2.314.1/actions-runner-linux-x64-2.314.1.tar.gz | tar zx
+RUN ./bin/installdependencies.sh
+
+# Copy entrypoint
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]