Replace pipx with native apt package installation per QLever quickstart documentation

Dockerfile

@@ -17,17 +17,15 @@ RUN apt-get update && apt-get install -y \
     docker.io \
     openjdk-17-jdk \
     jq \
-    python3 \
-    python3-pip \
-    python3-venv \
-    pipx \
     && rm -rf /var/lib/apt/lists/*
 
-# Ensure pipx path is set
-ENV PATH="/root/.local/bin:${PATH}"
-
-# Install qlever using pipx
-RUN pipx install qlever && pipx ensurepath
+# Install qlever from official package repository
+# See https://docs.qlever.dev/quickstart/#debian-and-ubuntu
+RUN wget -qO - https://packages.qlever.dev/pub.asc | gpg --dearmor | tee /usr/share/keyrings/qlever.gpg > /dev/null && \
+    echo "deb [arch=amd64 signed-by=/usr/share/keyrings/qlever.gpg] https://packages.qlever.dev/ $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") main" | tee /etc/apt/sources.list.d/qlever.list && \
+    apt-get update && \
+    apt-get install -y qlever && \
+    rm -rf /var/lib/apt/lists/*
 
 # Set working directory
 WORKDIR /workspace

README.md

@@ -7,8 +7,7 @@ Run qlever-control from within a Docker container with all required tools pre-in
 This Docker container includes:
 - **Java (OpenJDK 17)** - Required for qlever operations
 - **jq** - JSON processor for data manipulation
-- **pipx** - Python package manager
-- **qlever** - Installed via pipx
+- **qlever** - Installed via native package repository (https://docs.qlever.dev/quickstart/#debian-and-ubuntu)
 - **Docker CLI** - To run Docker commands on the host VM
 
 Base image: **Debian Bookworm (Slim)**
@@ -88,7 +87,6 @@ This will run `docker run hello-world` on startup to verify connectivity.
 Once inside the container, you can use:
 - `java -version` - Check Java installation
 - `jq --version` - Check jq installation
-- `pipx --version` - Check pipx installation
 - `qlever --version` - Check qlever installation
 - `docker ps` - Run Docker commands on the host
 

entrypoint.sh

@@ -12,7 +12,6 @@ echo "Verifying installed tools..."
 echo "- Java version:"
 java -version 2>&1 | head -n 1
 echo "- jq version: $(jq --version)"
-echo "- pipx version: $(pipx --version)"
 echo "- qlever version: $(qlever --version 2>&1 | tail -1)"
 
 # Optional: Test Docker connectivity to host

test.sh

@@ -17,9 +17,8 @@ echo ""
 # Test 2: Verify all tools are installed
 echo "Test 2: Verifying all tools are installed..."
 docker run --rm qlever-control:test bash -c "
-    java -version 2>&1 | grep -q 'openjdk version' && echo '  ✓ Java (OpenJDK 11) installed' || exit 1
+    java -version 2>&1 | grep -q 'openjdk version' && echo '  ✓ Java (OpenJDK 17) installed' || exit 1
     jq --version | grep -q 'jq-' && echo '  ✓ jq installed' || exit 1
-    pipx --version | grep -q '1.' && echo '  ✓ pipx installed' || exit 1
     qlever --version | grep -q 'qlever' && echo '  ✓ qlever installed' || exit 1
     docker --version | grep -q 'Docker version' && echo '  ✓ Docker CLI installed' || exit 1
 " 2>&1 | grep "✓"