Fixes

Author: simonkurtz-MSFT

.devcontainer/Dockerfile

@@ -2,8 +2,8 @@
 
 # syntax=docker/dockerfile:1.4
 
-# Use single-stage build with Python 3.12
-FROM mcr.microsoft.com/devcontainers/python:1-3.12-bookworm
+# Use single-stage build with Python 3.12 (fallback to stable base)
+FROM mcr.microsoft.com/devcontainers/python:0-3.12-bookworm
 
 # Set build arguments
 ARG PYTHON_VERSION=3.12
@@ -22,10 +22,16 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
     --mount=type=cache,target=/var/lib/apt/lists,sharing=locked \
     apt-get update && \
     # Remove Python 3.11 and other versions if they exist
-    apt-get remove -y python3.11* python3-minimal python3.11-minimal || true && \
-    apt-get autoremove -y && \
-    # Install essential packages (optimized for size and speed)
-    apt-get install -y --no-install-recommends curl wget jq tree git-lfs && \
+    apt-get remove -y python3.11* python3-minimal python3.11-minimal || true && \    apt-get autoremove -y && \
+    # Install essential packages including core utilities
+    apt-get install -y --no-install-recommends \
+        coreutils \
+        util-linux \
+        curl \
+        wget \
+        jq \
+        tree \
+        git-lfs && \
     apt-get clean && \
     # Create symbolic links to ensure python3 points to Python 3.12
     ln -sf /usr/local/bin/python3.12 /usr/bin/python3 && \

.devcontainer/devcontainer.json

@@ -21,7 +21,7 @@
       "version": "latest",
       "ppa": true
     },
-    "ghcr.io/devcontainers/features/docker-in-docker:2": {
+    "_ghcr.io/devcontainers/features/docker-in-docker:2": {
       "version": "latest",
       "enableNonRootDocker": "true"
     }