Dockerfile.min

# This dockerfile builds a minimized runtime image.
#########################
#      GLOBAL ARGS      #
#########################
ARG RENODE_DEST_BUILDER=/opt/renode/
ARG RENODE_VERSION=1.15.2
ARG RENODE_URL=https://github.com/renode/renode/releases/download/v$RENODE_VERSION/renode-$RENODE_VERSION.linux-portable.tar.gz


#########################
#     BUILDER IMAGE     #
#########################
# Ubuntu used as builder image for quick tool access, could be minimized if desired
FROM ubuntu:21.04 AS BUILDER

# Configuration options
# Bring global values into scope
ARG RENODE_DEST_BUILDER
ARG RENODE_URL
# !!CONFIG NOTE!!: the trailing `/` here is important. Removing it will cause ADD below to rename external file
# while having it in place has the external file placed into the compressed folder as intended.
ARG RENODE_COMPRESSED_DIR=/opt/renode/compressed/

# Get compressed binary from $RENODE_URL set above and deposit in $RENODE_DEST_BUILDER set above
ADD $RENODE_URL $RENODE_COMPRESSED_DIR

# Uncompress the portable linux binary
RUN tar -vxf $RENODE_COMPRESSED_DIR/* -C $RENODE_DEST_BUILDER


#########################
#     RUNTIME IMAGE     #
#########################
# Using mono:slim. Was able to get scratch to load by copying some dynamic libraries returned
# by ldd. But mono calls other shared libs at runtime. Finding each is a britle task.
FROM mono:slim as RUNTIME

# Bring global values into scope
ARG RENODE_DEST_BUILDER
ARG RENODE_VERSION

COPY --from=BUILDER ${RENODE_DEST_BUILDER}/renode_${RENODE_VERSION}_portable/ ${RENODE_DEST_BUILDER}
CMD ["/opt/renode/renode"]