pass version string to docker build (#1313)

Signed-off-by: Zbynek Roubalik <zroubali@redhat.com>

Dockerfile

@@ -1,6 +1,8 @@
 # Build the manager binary
 FROM golang:1.15.3 as builder
 
+ARG BUILD_VERSION
+
 WORKDIR /workspace
 
 # Copy the Go Modules manifests
@@ -24,7 +26,7 @@ COPY pkg/ pkg/
 COPY .git/ .git/
 
 # Build
-RUN make manager
+RUN VERSION=${BUILD_VERSION} make manager
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

Dockerfile.adapter

@@ -1,6 +1,8 @@
 # Build the manager binary
 FROM golang:1.15.3 as builder
 
+ARG BUILD_VERSION
+
 WORKDIR /workspace
 
 # Copy the Go Modules manifests
@@ -26,7 +28,7 @@ COPY .git/ .git/
 RUN mkdir -p /apiserver.local.config/certificates && chmod -R 777 /apiserver.local.config
 
 # Build
-RUN make adapter
+RUN VERSION=${BUILD_VERSION} make adapter
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

Makefile

@@ -130,9 +130,9 @@ undeploy:
 build: manifests set-version manager adapter
 
 # Build the docker image
-docker-build: build
-	docker build . -t ${IMAGE_CONTROLLER}
-	docker build -f Dockerfile.adapter -t ${IMAGE_ADAPTER} .
+docker-build:
+	docker build . -t ${IMAGE_CONTROLLER} --build-arg BUILD_VERSION=${VERSION}
+	docker build -f Dockerfile.adapter -t ${IMAGE_ADAPTER} . --build-arg BUILD_VERSION=${VERSION}
 
 # Build KEDA Operator binary
 .PHONY: manager