added

Dockerfile

@@ -5,10 +5,16 @@ FROM ubuntu:${UBUNTU_VERSION}
 LABEL maintainer="thommyho"
 LABEL description="An Ubuntu image with essential tools for git development and CI/CD pipelines."
 
+# Re-declare ARG to make it available inside the build stages (optional, but good practice)
+ARG UBUNTU_VERSION
+
 ENV NVM_DIR=/usr/local/nvm \
     NODE_VERSION=24.11.1 \
     NODE_PATH=/usr/local/nvm/v24.11.1/lib/node_modules \
-    PATH=/usr/local/nvm/versions/node/v24.11.1/bin:$PATH
+    PATH=/usr/local/nvm/versions/node/v24.11.1/bin:$PATH \
+    # This variable fixes the issue: it allows system-wide pip installs on Ubuntu 24.04+
+    # and is safely ignored by older Ubuntu versions (22.04, 20.04).
+    PIP_BREAK_SYSTEM_PACKAGES=1
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
     git \
@@ -20,15 +26,13 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     python3-pip \
     && rm -rf /var/lib/apt/lists/*
 
-# Install conan only for Ubuntu 24.04 or newer
-RUN UBUNTU_MAJOR_VERSION=$(cut -d'.' -f1 <<<"$UBUNTU_VERSION") && \
-    if [ "$UBUNTU_MAJOR_VERSION" -ge 24 ]; then \
-        pip install conan --break-system-packages; \
-    fi
+# Consolidated conan installation into one step.
+# The PIP_BREAK_SYSTEM_PACKAGES environment variable handles the version logic automatically.
+RUN pip install conan
 
 RUN mkdir -p $NVM_DIR && \
     curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash && \
     . $NVM_DIR/nvm.sh && \
     nvm install $NODE_VERSION && \
     nvm use $NODE_VERSION && \
-    nvm alias default $NODE_VERSION
+    nvm alias default $NODE_VERSION