Added docker-build & docker-push targets to Makefile (#16)

Makefile

@@ -115,3 +115,23 @@ report-celery-beat:
 
 admin-user:
 	superset fab create-admin
+
+############ Docker image targets ############
+
+AIRGAP_REGISTRY ?= lr1-bd-harbor-registry.mip.storage.hpecorp.net/develop
+IMG_NAME := gcr.io/mapr-252711/superset/superset
+GIT_HASH := $(shell git log -n1 --pretty=%h)
+IS_DIRTY := $(shell git diff-index --quiet HEAD -- || echo "-is-dirty")
+IMG_TAG ?= 3.1.0-hpe-ezaf-$(GIT_HASH)$(IS_DIRTY)
+
+docker-build:	
+    docker build . -t $(IMG_NAME):$(IMG_TAG)
+    $(ifneq(,$(AIRGAP_REGISTRY)))
+        docker tag $(IMG_NAME):$(IMG_TAG) $(AIRGAP_REGISTRY)/$(IMG_NAME):$(IMG_TAG)
+    $(endif)
+
+docker-push:
+    docker push $(IMG_NAME):$(IMG_TAG)
+    $(ifneq(,$(AIRGAP_REGISTRY)))
+        docker push $(AIRGAP_REGISTRY)/$(IMG_NAME):$(IMG_TAG)
+    $(endif)