Dockerfile.extend

# Extend an already-built base image with updated ROOT overlay files.
# Used for rapid hotfixes and incremental updates without full rebuilds.
#
# Sources from a dated production image (PROD_NAMESPACE/base-image:...-YYYY-MM-DD),
# overlays updated files, and pushes to staging with a new date tag.
# The resulting staging image can be promoted using the existing promote workflow.
#
# Usage:
#   docker buildx build -f Dockerfile.extend \
#     --build-arg BASE_IMAGE=PROD_NAMESPACE/base-image:cuda-12.9.1-...-py312-2026-03-18 \
#     --tag staging/base-image:cuda-12.9.1-...-py312-2026-03-19 \
#     --push .

ARG BASE_IMAGE
FROM ${BASE_IMAGE}

# Overlay updated files (supervisor scripts, instance tools, portal, etc.)
COPY ./ROOT /

# Update the portal if present
COPY portal-aio /opt/portal-aio

# Add sox for torchaudio/torchcodec support
RUN apt-get update && apt-get install -y --no-install-recommends sox && rm -rf /var/lib/apt/lists/*

# Refresh environment hash to reflect any changes
RUN env-hash > /.env_hash