Add make targets to build devel image of syncer (#135)

* Add make targets to build devel image of syncer

This image can be used with the metal-toolbox/sandbox

* review comments: update target to push-image-devel

Align better with metal-toolbox/flasher

Makefile

@@ -1,5 +1,16 @@
+export DOCKER_BUILDKIT=1
+GIT_COMMIT  := $(shell git rev-parse --short HEAD)
+GIT_BRANCH  := $(shell git symbolic-ref -q --short HEAD)
+GIT_SUMMARY := $(shell git describe --tags --dirty --always)
+VERSION     := $(shell git describe --tags 2> /dev/null)
+BUILD_DATE  := $(shell date +%s)
+GIT_COMMIT_FULL  := $(shell git rev-parse HEAD)
+DOCKER_IMAGE  := "ghcr.io/metal-toolbox/firmware-syncer"
+REPO := "https://github.com/metal-toolbox/firmware-syncer.git"
+
 .DEFAULT_GOAL := help
 
+
 ## Go test
 test:
 	CGO_ENABLED=0 go test  -covermode=atomic ./...
@@ -22,6 +33,18 @@ build-linux: go-mod
 	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o firmware-syncer -mod vendor
 	sha256sum firmware-syncer > firmware-syncer_checksum.txt
 
+## build docker image and tag as ghcr.io/metal-toolbox/firmware-syncer:latest
+build-image: build-linux
+	docker build --rm=true -f Dockerfile -t ${DOCKER_IMAGE}:latest  . \
+							 --label org.label-schema.schema-version=1.0 \
+							 --label org.label-schema.vcs-ref=$(GIT_COMMIT_FULL) \
+							 --label org.label-schema.vcs-url=$(REPO)
+
+## tag and push devel docker image to local registry
+push-image-devel: build-image
+	docker tag ${DOCKER_IMAGE}:latest localhost:5001/firmware-syncer:latest
+	docker push localhost:5001/firmware-syncer:latest
+	kind load docker-image localhost:5001/firmware-syncer:latest
 
 # https://gist.github.com/prwhite/8168133
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