[FAB-3136] Include install script with release package

Since we distribute our runtime(s) as Docker images
and there are several of them to download, it's
convenient to provide a script which will download
the correct version as well as iamges for the correct
architecture.

The script basically has a list of the various fabric
images and the make target uses substituion to set
the right variables for each platform.

NOTE:  I hard-coded VERSION to 1.0.0-alpha for now
because we do need to publish these packages and
update the docs to ensure things will still work with
the alpha

Change-Id: I76d6db3ab638e13e65c4b4c0ce23d4af4e6ef068
Signed-off-by: Gari Singh <gari.r.singh@gmail.com>

Makefile

@@ -276,41 +276,49 @@ release: $(patsubst %,release/%, $(shell go env GOOS)-$(shell go env GOARCH))
 release-all: $(patsubst %,release/%, $(RELEASE_PLATFORMS))
 
 release/windows-amd64: GOOS=windows
-release/windows-amd64: GOARCH=amd64
 release/windows-amd64: GO_TAGS+= nopkcs11
-release/windows-amd64: $(patsubst %,release/windows-amd64/%, $(RELEASE_PKGS))
+release/windows-amd64: $(patsubst %,release/windows-amd64/bin/%, $(RELEASE_PKGS)) release/windows-amd64/install
 
 release/darwin-amd64: GOOS=darwin
-release/darwin-amd64: GOARCH=amd64
 release/darwin-amd64: GO_TAGS+= nopkcs11
-release/darwin-amd64: $(patsubst %,release/darwin-amd64/%, $(RELEASE_PKGS))
+release/darwin-amd64: $(patsubst %,release/darwin-amd64/bin/%, $(RELEASE_PKGS)) release/darwin-amd64/install
 
 release/linux-amd64: GOOS=linux
-release/linux-amd64: GOARCH=amd64
 release/linux-amd64: GO_TAGS+= nopkcs11
-release/linux-amd64: $(patsubst %,release/linux-amd64/%, $(RELEASE_PKGS))
+release/linux-amd64: $(patsubst %,release/linux-amd64/bin/%, $(RELEASE_PKGS)) release/linux-amd64/install
+
+release/%-amd64: DOCKER_ARCH=x86_64
+release/%-amd64: GOARCH=amd64
+release/linux-%: GOOS=linux
 
-release/linux-ppc64le: GOOS=linux
 release/linux-ppc64le: GOARCH=ppc64le
+release/linux-ppc64le: DOCKER_ARCH=ppc64le
 release/linux-ppc64le: GO_TAGS+= nopkcs11
-release/linux-ppc64le: $(patsubst %,release/linux-ppc64le/%, $(RELEASE_PKGS))
+release/linux-ppc64le: $(patsubst %,release/linux-ppc64le/bin/%, $(RELEASE_PKGS)) release/linux-ppc64le/install
 
-release/linux-s390x: GOOS=linux
 release/linux-s390x: GOARCH=s390x
+release/linux-s390x: DOCKER_ARCH=s390x
 release/linux-s390x: GO_TAGS+= nopkcs11
-release/linux-s390x: $(patsubst %,release/linux-s390x/%, $(RELEASE_PKGS))
+release/linux-s390x: $(patsubst %,release/linux-s390x/bin/%, $(RELEASE_PKGS)) release/linux-s390x/install
 
-release/%/configtxgen: $(PROJECT_FILES)
+release/%/bin/configtxgen: $(PROJECT_FILES)
 	@echo "Building $@ for $(GOOS)-$(GOARCH)"
 	mkdir -p $(@D)
 	$(CGO_FLAGS) GOOS=$(GOOS) GOARCH=$(GOARCH) go build -o $(abspath $@) -tags "$(GO_TAGS)" -ldflags "$(GO_LDFLAGS)" $(pkgmap.$(@F))
-	@touch $@
 
-release/%/cryptogen: $(PROJECT_FILES)
+release/%/bin/cryptogen: $(PROJECT_FILES)
 	@echo "Building $@ for $(GOOS)-$(GOARCH)"
 	mkdir -p $(@D)
 	$(CGO_FLAGS) GOOS=$(GOOS) GOARCH=$(GOARCH) go build -o $(abspath $@) -tags "$(GO_TAGS)" -ldflags "$(GO_LDFLAGS)" $(pkgmap.$(@F))
-	@touch $@
+
+release/%/install: $(PROJECT_FILES)
+	mkdir -p $@
+	@cat $@/../../templates/get-docker-images.in \
+		| sed -e 's/_NS_/$(DOCKER_NS)/g' \
+		| sed -e 's/_ARCH_/$(DOCKER_ARCH)/g' \
+		| sed -e 's/_VERSION_/$(PROJECT_VERSION)/g' \
+		> $@/get-docker-images.sh
+		@chmod +x $@/get-docker-images.sh
 
 .PHONY: protos
 protos: buildenv
@@ -331,9 +339,11 @@ clean: docker-clean unit-test-clean
 dist-clean: clean gotools-clean
 	-@rm -rf /var/hyperledger/* ||:
 
-.PHONY: release-clean
-release-clean:
-	-@rm -rf release
+%-release-clean:
+	$(eval TARGET = ${patsubst %-release-clean,%,${@}})
+	-@rm -rf release/$(TARGET)
+
+release-clean: $(patsubst %,%-release-clean, $(RELEASE_PLATFORMS))
 
 .PHONY: unit-test-clean
 unit-test-clean:

release/templates/get-docker-images.in

@@ -0,0 +1,17 @@
+#!/bin/bash -eu
+
+# This script pulls docker images from the Dockerhub hyperledger repositories
+
+# set the default Docker namespace and tag
+DOCKER_NS=_NS_
+ARCH=_ARCH_
+VERSION=1.0.0-alpha
+
+# set of Hyperledger Fabric images
+FABRIC_IMAGES=(fabric-peer fabric-orderer fabric-ccenv fabric-javaenv fabric-kafka fabric-zookeeper fabric-couchdb)
+
+for image in ${FABRIC_IMAGES[@]}; do
+	echo "Pulling ${DOCKER_NS}/$image:${ARCH}-${VERSION}"
+	docker pull ${DOCKER_NS}/$image:${ARCH}-${VERSION}
+done
+