build script comment manylinux check

Author: sandeepgupta12

.github/scripts/s390x-ci/self-hosted-builder/actions-runner.Dockerfile

@@ -1,5 +1,5 @@
 # Stage 1: Temporary image for amd64 dependencies
-FROM docker.io/amd64/ubuntu:22.04 as ld-prefix
+FROM docker.io/amd64/ubuntu:22.04 AS ld-prefix
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Install amd64-specific dependencies
@@ -9,11 +9,19 @@ RUN apt-get update && apt-get -y install \
     libssl3
 
 # Stage 2: Main image for ppc64le Ubuntu
-FROM --platform=linux/ppc64le ubuntu:22.04
+FROM ubuntu:22.04
 
 # Set non-interactive mode for apt
 ENV DEBIAN_FRONTEND=noninteractive
 
+# Fix sources to point to ports.ubuntu.com for ppc64le
+RUN sed -i 's|archive.ubuntu.com|ports.ubuntu.com|g' /etc/apt/sources.list && \
+    sed -i 's|security.ubuntu.com|ports.ubuntu.com|g' /etc/apt/sources.list
+
+# Update and clean apt
+RUN apt-get update -o Acquire::Retries=3 && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
 # Install dependencies for building and testing PyTorch
 RUN apt-get update && apt-get -y install --no-install-recommends \
     build-essential \
@@ -42,31 +50,31 @@ RUN apt-get update && apt-get -y install --no-install-recommends \
     ca-certificates \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
-# Copy amd64 dependencies from the ld-prefix stage
-COPY --from=ld-prefix / /usr/x86_64-linux-gnu/
-RUN ln -fs ../lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 /usr/x86_64-linux-gnu/lib64/
-RUN ln -fs /etc/resolv.conf /usr/x86_64-linux-gnu/etc/
-ENV QEMU_LD_PREFIX=/usr/x86_64-linux-gnu
-
-# Copy custom scripts
-COPY fs/ /
-RUN chmod +x /usr/bin/actions-runner /usr/bin/entrypoint
-
-# Install Docker Engine for ppc64le
-RUN apt-get update && apt-get install -y \
+# Fix: Add Docker Engine repository correctly for ppc64le
+RUN apt-get update && apt-get install -y --no-install-recommends \
     apt-transport-https \
     ca-certificates \
     curl \
     gnupg-agent \
     software-properties-common \
     && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - \
     && echo "deb [arch=ppc64el] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" > /etc/apt/sources.list.d/docker.list \
-    && apt-get update && apt-get install -y \
+    && apt-get update -o Acquire::Retries=3 && apt-get install -y \
     docker-ce \
     docker-ce-cli \
     containerd.io \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
+# Copy amd64 dependencies from the ld-prefix stage
+COPY --from=ld-prefix / /usr/x86_64-linux-gnu/
+RUN ln -fs ../lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 /usr/x86_64-linux-gnu/lib64/
+RUN ln -fs /etc/resolv.conf /usr/x86_64-linux-gnu/etc/
+ENV QEMU_LD_PREFIX=/usr/x86_64-linux-gnu
+
+# Copy custom scripts
+COPY fs/ /
+RUN chmod +x /usr/bin/actions-runner /usr/bin/entrypoint
+
 # Configure GitHub Actions Runner for amd64
 RUN useradd -m actions-runner
 USER actions-runner