add robust retry logic to regular Node Dockerfile

Same retry pattern as FIPS Dockerfile - consolidates all apt-get
commands into single retry loop to handle transient mirror failures.

Co-Authored-By: Claude (global.anthropic.claude-opus-4-5-20251101-v1:0) <noreply@anthropic.com>

Author: JackStrohm-asana

Dockerfile.Node22

@@ -4,11 +4,37 @@ FROM ubuntu:20.04 AS base
 # Set non-interactive mode to avoid prompts during installation
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Install necessary dependencies
-RUN apt-get update
-RUN apt-get install -y software-properties-common
-RUN add-apt-repository -y ppa:ubuntu-toolchain-r/test
-RUN apt-get update && apt-get install -y build-essential python3 python3-distutils g++-10 make curl git pkg-config libssl-dev libffi-dev libgmp-dev libtool autoconf automake cmake wget xz-utils unzip vim
+# Combine update, PPA setup, and install into one robust retry loop
+RUN set -e; \
+    for i in 1 2 3 4 5; do \
+        echo "Attempt $i: Setting up build environment..." && \
+        apt-get update --allow-releaseinfo-change && \
+        apt-get install -y --no-install-recommends software-properties-common && \
+        add-apt-repository -y ppa:ubuntu-toolchain-r/test && \
+        apt-get update --allow-releaseinfo-change && \
+        apt-get install -y --no-install-recommends --fix-missing \
+            build-essential \
+            python3 \
+            python3-distutils \
+            g++-10 \
+            make \
+            curl \
+            git \
+            pkg-config \
+            libssl-dev \
+            libffi-dev \
+            libgmp-dev \
+            libtool \
+            autoconf \
+            automake \
+            cmake \
+            wget \
+            xz-utils \
+            unzip \
+            vim \
+        && break || \
+        (echo "Attempt $i failed! Sleeping 15s..." && sleep 15); \
+    done
 RUN rm -rf /var/lib/apt/lists/*
 
 # Set g++ 10 as the default