message: fix regression with makefile
  unset default target
  make explicit target for building image
diff: @@ -6,10 +6,7 @@ DOCKER_TAG=$(VERSION)-$(GIT_COMMIT)
  DOCKER_REGISTRY=infinyon
  DOCKER_IMAGE=$(DOCKER_REGISTRY)/fluvio
  TARGET_MUSL=x86_64-unknown-linux-musl
  -TARGET_GNU=x86_64-unknown-linux-gnu
  -TARGET_DARWIN=x86_64-apple-darwin
  -TARGET?=$(TARGET_GNU)
  -CLI_BUILD=fluvio_cli
  +TARGET=
  BUILD_PROFILE=$(if $(RELEASE),release,debug)
  FLUVIO_BIN=$(if $(TARGET),./target/$(TARGET)/$(BUILD_PROFILE)/fluvio,./target/$(BUILD_PROFILE)/fluvio)
  RELEASE_FLAG=$(if $(RELEASE),--release,)
  @@ -69,7 +66,7 @@ build-test: build-cluster build-cli
  install_rustup_target:
  ifeq ($(TARGET), armv7-unknown-linux-gnueabihf)
  cargo install cross
  -else
  +else ifdef $(TARGET)
  rustup target add $(TARGET)
  endif
  @@ -265,13 +262,13 @@ endif
  # Build docker image for Fluvio.
  # In development, we tag the image with just the git commit.
  # In further releases, we re-tag the image as needed.
  -fluvio_image: fluvio_bin_linux
  +fluvio_image: fluvio_bin_musl
  echo "Building Fluvio musl image with tag: $(GIT_COMMIT)"
  k8-util/docker/build.sh $(GIT_COMMIT) "./target/x86_64-unknown-linux-musl/$(BUILD_PROFILE)/fluvio-run" $(MINIKUBE_FLAG)
  -fluvio_bin_linux:
  - rustup target add $(TARGET_LINUX)
  - cargo build --bin fluvio-run $(RELEASE_FLAG) --target $(TARGET_LINUX)
  +fluvio_bin_musl:
  + rustup target add $(TARGET_MUSL)
  + cargo build --bin fluvio-run $(RELEASE_FLAG) --target $(TARGET_MUSL)
  make publish_fluvio_image:
  curl \
  