Dockerfile.opensuse

ARG PACKAGES="gcc neofetch"

# PKG_CACHE defaults to the "pkg-cache-local" stage in this image.
# Can be overridden to a custom image for reproducible builds.
ARG PKG_CACHE=pkg-cache-local

ARG BASE=opensuse/leap:15.5@sha256:987224e4850af16eef9c89dee43c7bfbbe3b197f8abaf926aec8ad2043b5b577

FROM ${BASE} AS base

FROM base AS pkg-cache-local-base
ARG PACKAGES
RUN zypper install -y --download-only ${PACKAGES}

FROM scratch AS pkg-cache-local
COPY --from=pkg-cache-local-base /var/cache/zypp /var/cache/zypp

# pkg-cache is the stage to collect package cache files.
# This stage can be pushed for the sake of reproducible builds.
FROM ${PKG_CACHE} AS pkg-cache

FROM base
ARG PACKAGES
RUN \
  --mount=from=pkg-cache,source=/var/cache/zypp,target=/var/cache/zypp,rw \
  --network=none \
  zypper --no-refresh install -y ${PACKAGES}
# The package signatures are verified by zypper