build_docker_compose.sh

#!/bin/bash
shopt -s expand_aliases
if ! which docker-compose > /dev/null 2>&1; then
    # Set an alias for docker-compose if it's missing
    alias docker-compose='docker compose'
fi

docker --help | grep buildx
missing_buildx=$?

if [ "$missing_buildx" -eq "1" ];
then
  export DOCKER_BUILDKIT=1
  export COMPOSE_DOCKER_CLI_BUILD=1
  docker-compose build ${BUILDARGS} $@
else
  # We use docker buildx so we can build multi-platform images. Unfortunately,
  # a limitation is that multi-platform images cannot be loaded from the builder
  # into Docker.
  docker buildx create --name super-builder --driver docker-container \
    2>/dev/null || true

  # Look for any images that would be built multi-platform
  IS_MULTIPLATFORM=$(
    docker buildx bake \
      --builder super-builder \
      --file docker-compose.yml \
      ${BUILDARGS} "$@" \
      --print --progress none \
    | jq 'any(.target[].platforms//[]|map(split(",";"")[])|unique; length >= 2)'
  )

  # If this is a single-platform build, then by default load it into Docker
  echo Is this a multi-platform build? ${IS_MULTIPLATFORM}
  if [ "$IS_MULTIPLATFORM" = "false" ]; then
    BUILDARGS="$BUILDARGS --load"
  fi

  docker buildx bake \
    --builder super-builder \
    --file docker-compose.yml \
    ${BUILDARGS} "$@"
fi

ret=$?

if [ "$ret" -ne "0" ]; then
  echo "Tip: if the build failed to resolve domain names,"
  echo "consider running ./base/docker_nftables_setup.sh"
  echo "since iptables has been disabled for docker in the"
  echo "SPR installer"
  exit $ret
fi