final

Signed-off-by: Jean-Michel Batto <jmbatto@eldarsoft.com>

Dockerfile

@@ -1,42 +1,39 @@
 FROM debian:trixie-slim
 
-# Métadonnées
+# Metadata
 LABEL maintainer="jmbatto"
-LABEL description="Julia 1.10 (Compilé Source) sur Debian Trixie avec PDI/GTK"
+LABEL description="Julia 1.12 (Source Build) on Debian Trixie with PDI/GTK - Optimized for stability"
 
-# Arguments utilisateur (Conservés comme demandé)
+# Build Arguments
 ARG USER_ID=1001
 ARG GROUP_ID=1001
 ARG USER_NAME=coder
+ARG JULIA_VERSION=v1.12.4
+ARG PDI_VERSION=1.10.0
+
 # -----------------------------------------------------------------------------
-# 1. Installation des dépendances système (Runtime)
-# On installe tout ce qu'il faut pour GTK4, PDI et le dev C
+# 1. System Dependencies Installation
 # -----------------------------------------------------------------------------
+# Rationale:
+# - 'neowofetch': Replaces 'neofetch' which has been removed from Debian Trixie repos.
+# - 'python3-setuptools': REQUIRED for PDI compilation. Python 3.12+ (shipped with Trixie)
+#   removed 'distutils', causing CMake/PDI detection scripts to fail without setuptools.
+# - 'dbus-x11' & 'xvfb': Essential for running GTK applications in a headless Docker environment.
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    # Outils de base et compilation C/PDI
+    # Build tools and base utilities
     build-essential cmake git pkg-config \
-	gfortran \
-	which \
-	perl \
-	gawk \
-	m4 \
-	vim \
-	libatomic1 \
-    nano sudo lsof gawk emacs jq neowofetch curl wget \
+    gfortran which perl gawk m4 vim libatomic1 \
+    nano sudo lsof jq neowofetch curl wget \
     gdb valgrind clang-format \
-    ca-certificates iputils-ping \
-	colordiff \
-	mpi-default-dev \
-	python3 python3-dev python3-numpy python3-setuptools \
-    # Libs scientifiques PDI
-    libhdf5-dev libz-dev \
-    # X11 & Xvfb (Pour ProfileView headless)
+    ca-certificates iputils-ping colordiff \
+    # Python Environment (with setuptools fix for Py3.12)
+    python3 python3-dev python3-numpy python3-setuptools \
+    # Scientific Libraries (MPI/PDI/HDF5)
+    mpi-default-dev libhdf5-dev libz-dev \
+    # Graphics Stack (X11, GTK4, OpenGL, DBus)
     libx11-6 libxext6 libxrender1 libxtst6 xauth xvfb dbus-x11 \
-    # OpenGL Logiciel (Indispensable pour GTK4 dans Docker)
     libgl1-mesa-dri libgl1 \
-    # Dépendances GTK4 / Cairo / GDK complètes
-    libgtk-4-1 libgtk-3-0 \
-    libglib2.0-0 libcairo2 \
+    libgtk-4-1 libgtk-3-0 libglib2.0-0 libcairo2 \
     libpango-1.0-0 libharfbuzz0b \
     libgdk-pixbuf-2.0-0 libgdk-pixbuf2.0-bin \
     libgraphene-1.0-0 librsvg2-common \
@@ -44,59 +41,55 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     adwaita-icon-theme-full hicolor-icon-theme fonts-liberation \
     graphviz \
     && rm -rf /var/lib/apt/lists/*
-	
+
+# Fix: Generate machine-id to prevent GLib/GTK runtime errors regarding missing D-Bus UUID.
 RUN dbus-uuidgen > /etc/machine-id
 
-# Fix GDK Pixbuf (Cache des loaders pour éviter les erreurs au runtime)
+# Fix: Update GDK pixbuf loaders cache.
+# Prevents runtime warnings/errors about missing image format loaders.
 RUN LOADER_PATH=$(find /usr/lib -name gdk-pixbuf-query-loaders | head -n 1) && \
     ln -s $LOADER_PATH /usr/bin/gdk-pixbuf-query-loaders && \
     gdk-pixbuf-query-loaders --update-cache
 
-# Version cible
-# ARG JULIA_VERSION=v1.10.10
-ARG JULIA_VERSION=v1.12.4
+# -----------------------------------------------------------------------------
+# 2. JULIA COMPILATION
+# -----------------------------------------------------------------------------
 WORKDIR /tmp/julia-build
-# On utilise --depth 1 pour accélérer le téléchargement (évite le timeout)
 RUN git clone --depth 1 --branch ${JULIA_VERSION} https://github.com/JuliaLang/julia.git .
 
-
-
-
+# Build Configuration (Make.user) - CRITICAL FIXES FOR DEBIAN TRIXIE
+# 1. USE_SYSTEM_LIBUNWIND=0: Forces internal libunwind. System libunwind on Trixie causes Segfaults.
+# 2. noexecstack: Security flag required by modern Linux kernels.
+# 3. -gdwarf-4: CRITICAL FIX. GCC 13+ defaults to DWARF-5 debug format, which is incompatible
+#    with Julia's current unwinder, leading to immediate Segfaults on startup.
 RUN echo "prefix=/usr/local/julia" > Make.user && \
     echo "MARCH=x86-64" >> Make.user && \
     echo "USE_SYSTEM_LIBUNWIND=0" >> Make.user && \
-#	echo "USE_BINARYBUILDER=0" >> Make.user && \
     echo "LDFLAGS=-Wl,-z,noexecstack" >> Make.user && \
     echo "CFLAGS=-Wa,--noexecstack -gdwarf-4" >> Make.user && \
     echo "CXXFLAGS=-Wa,--noexecstack -gdwarf-4" >> Make.user
 
-
-# -----------------------------------------------------------------------------
-# 2. COMPILATION DE JULIA
-# -----------------------------------------------------------------------------
-
-
-# Mise à jour du PATH
+# Compile, Install, and Cleanup
+# Cleanup is performed immediately to reduce final image size (~1GB saved).
 ENV JULIA_PATH=/usr/local/julia
 ENV PATH=$JULIA_PATH/bin:$PATH
-# Compilation
 RUN make -j$(nproc) && \
-    make install
-
-
+    make install && \
+    rm -rf /tmp/julia-build
 
 # -----------------------------------------------------------------------------
-# 3. Installation de PDI (Build from source)
-# Configuration PDI
+# 3. PDI INSTALLATION
 # -----------------------------------------------------------------------------
-
 ENV PDI_DIR=/usr/local
 ENV LD_LIBRARY_PATH=/usr/local/lib:/usr/lib/x86_64-linux-gnu
 ENV CPATH=/usr/local/include
 ENV PREFIX=/usr/local
-ARG PDI_VERSION=1.10.0
 
 WORKDIR /tmp/pdi-build
+# Build Configuration:
+# - BUILD_PYTHON=ON & BUILD_PYCALL_PLUGIN=ON: Explicitly enabled to generate
+#   'libpdi_pycall_plugin.so'. Required to prevent 'plugin not found' errors
+#   when interacting with Python from Julia/PDI.
 RUN git clone --depth 1 --branch ${PDI_VERSION} https://github.com/pdidev/pdi.git . && \
     mkdir build && cd build && \
     cmake \
@@ -105,7 +98,7 @@ RUN git clone --depth 1 --branch ${PDI_VERSION} https://github.com/pdidev/pdi.gi
         -DBUILD_SHARED_LIBS=ON \
         -DBUILD_FORTRAN=OFF \
         -DBUILD_HDF5_PARALLEL=OFF \
-		-DBUILD_PYTHON=ON \
+        -DBUILD_PYTHON=ON \
         -DBUILD_PYCALL_PLUGIN=ON \
         -DBUILD_NETCDF_PARALLEL=OFF \
         -DCMAKE_INSTALL_PREFIX=/usr/local \
@@ -114,35 +107,52 @@ RUN git clone --depth 1 --branch ${PDI_VERSION} https://github.com/pdidev/pdi.gi
     make install && \
     ldconfig && \
     cd / && rm -rf /tmp/pdi-build
-	
-
 
 # -----------------------------------------------------------------------------
-# 4. Création de l'utilisateur (Structure décomposée conservée)
+# 4. USER CONFIGURATION & RUNTIME ENVIRONMENT
 # -----------------------------------------------------------------------------
 RUN groupadd -g ${GROUP_ID} ${USER_NAME} && \
     useradd -m -u ${USER_ID} -g ${USER_NAME} -s /bin/bash ${USER_NAME} && \
     echo "${USER_NAME} ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 
+# RUNTIME ENVIRONMENT VARIABLES - CRITICAL SETTINGS
+# 1. LD_LIBRARY_PATH: STRICTLY excludes '/usr/lib/x86_64-linux-gnu'.
+#    Reason: Preventing "DLL Hell". Including system paths forces Julia to load system
+#    libraries (e.g., system libglib) instead of its own Artifacts, causing undefined
+#    symbol errors (e.g., 'g_string_copy'). We prioritize Julia and PDI libs.
+ENV LD_LIBRARY_PATH=/usr/local/julia/lib:/usr/local/julia/lib/julia:/usr/local/lib
+
+# 2. GTK_A11Y=none: Disables GTK Accessibility Bus to suppress "org.a11y.Bus" warnings in logs.
+ENV GTK_A11Y=none
+
+# 3. Graphics & Julia settings
+ENV GKSwstype=100
+ENV JULIA_PKG_PRECOMPILE_AUTO=0
+ENV JULIA_PKG_USE_CLI_GIT=true
+ENV DISPLAY=host.docker.internal:0.0
+
+# Switch to non-root user for Package Installation
+# Ensures ~/.julia permissions are correctly set for the user 'coder'.
 USER ${USER_NAME}
 WORKDIR /home/${USER_NAME}/project
 
 # -----------------------------------------------------------------------------
-# 5. Pré-installation des paquets Julia
-# On utilise xvfb-run pour que ProfileView/Gtk puissent se précompiler sans écran physique.
+# 5. JULIA PACKAGES INSTALLATION
 # -----------------------------------------------------------------------------
+# Optimization:
+# - Operations are consolidated into a single RUN instruction to reduce Docker layer count.
+# - xvfb-run: Executes in a virtual framebuffer. Essential for 'Pkg.precompile()'
+#   of Gtk4 and ProfileView, which require a display server even during installation.
+
+
 
 
-#ENV LD_LIBRARY_PATH=/usr/local/julia/lib:/usr/local/julia/lib/julia:/usr/local/lib:/usr/lib/x86_64-linux-gnu
 ENV LD_LIBRARY_PATH=/usr/local/julia/lib:/usr/local/julia/lib/julia:/usr/local/lib
-ENV GKSwstype=100
-ENV GTK_A11Y=none
-ENV JULIA_PKG_PRECOMPILE_AUTO=0
-ENV JULIA_PKG_USE_CLI_GIT=true
- RUN julia -e 'import Pkg; \
+
+RUN julia -e 'import Pkg; \
     Pkg.add([ \
         "HDF5"])'
- RUN xvfb-run --auto-servernum --server-args="-screen 0 1920x1080x24 -nolisten tcp" \
+RUN xvfb-run --auto-servernum --server-args="-screen 0 1920x1080x24 -nolisten tcp" \
 	julia -e 'import Pkg; \
        Pkg.add([ \		
         "DataFrames", \
@@ -155,11 +165,11 @@ ENV JULIA_PKG_USE_CLI_GIT=true
 
 
 ENV LD_LIBRARY_PATH=""
-
+# hack to install julia package
 RUN xvfb-run --auto-servernum --server-args="-screen 0 1920x1080x24 -nolisten tcp" \
     julia -e 'import Pkg; Pkg.precompile()'
-ENV LD_LIBRARY_PATH=/usr/local/julia/lib:/usr/local/julia/lib/julia:/usr/local/lib:/usr/lib/x86_64-linux-gnu
+ENV LD_LIBRARY_PATH=/usr/local/julia/lib:/usr/local/julia/lib/julia:/usr/local/lib
+
 
-ENV DISPLAY=host.docker.internal:0.0
 
 CMD ["/bin/bash"]