removed apt simulation doing now real apt updates/install

post_installation_script_test/Dockerfile

@@ -1,41 +1,12 @@
 FROM ubuntu:22.04
 
-# Minimal image for safe simulation of apt installs.
+# Install required utilities including sudo
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    bash wget tar curl gnupg ca-certificates apt-utils apt coreutils file procps && \
+    bash wget tar curl gnupg ca-certificates apt-utils apt coreutils file procps sudo && \
     apt-get clean && rm -rf /var/lib/apt/lists/*
 
-# sudo wrapper: simulate apt installs and avoid making changes to the image
-RUN cat > /usr/local/bin/sudo <<'EOF'
-#!/bin/sh
-# sudo wrapper for simulation:
-# - simulate installs with `apt-get -s install ...`
-# - run `apt-get update` quietly (needed so apt -s has metadata)
-# - otherwise echo the command (no-op)
-cmd="$1"
-arg2="${2:-}"
-if [ "$cmd" = "apt" ] || [ "$cmd" = "apt-get" ]; then
-  if [ "$arg2" = "install" ]; then
-    shift 2
-    echo "[sudo-wrapper] simulating: apt-get -s install $@"
-    apt-get -s install "$@"
-    exit $?
-  elif [ "$arg2" = "update" ]; then
-    # do not run update at runtime (may require extra privileges); simulate instead
-    echo "[sudo-wrapper] simulating: apt-get update (no-op in container)"
-    exit 0
-  else
-    echo "[sudo-wrapper] would run: $@"
-    exit 0
-  fi
-else
-  echo "[sudo-wrapper] would run: $@"
-  exit 0
-fi
-EOF
-RUN chmod +x /usr/local/bin/sudo
-
-ENV PATH=/usr/local/bin:$PATH
+# Configure passwordless sudo for all users (needed for script)
+RUN echo 'ALL ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers
 
 WORKDIR /workspace
 ENTRYPOINT ["/bin/bash"]