Add minimal image

Signed-off-by: Carlos Eduardo Arango Gutierrez <carangog@redhat.com>

Dockerfile

@@ -15,14 +15,21 @@ COPY . .
 RUN make build
 
 # Create production image for running the operator
-FROM ${BASE_IMAGE_FULL}
+FROM ${BASE_IMAGE_FULL} as full
 COPY --from=builder /workspace/node-feature-discovery-operator /
-
-RUN mkdir -p /opt/nfd
-COPY build/assets /opt/nfd
+COPY --from=builder /workspace/build/assets /opt/nfd
 
 RUN useradd nfd-operator
 USER nfd-operator
 
 ENTRYPOINT ["/node-feature-discovery-operator"]
 LABEL io.k8s.display-name="node-feature-discovery-operator"
+
+# Create a minimal image for running the operator
+FROM ${BASE_IMAGE_MINIMAL} as minimal
+COPY --from=builder /workspace/node-feature-discovery-operator /
+COPY --from=builder /workspace/build/assets /opt/nfd
+
+ENTRYPOINT ["/node-feature-discovery-operator"]
+LABEL io.k8s.display-name="node-feature-discovery-operator"
+

Makefile

@@ -65,6 +65,7 @@ IMAGE_REPO ?= $(IMAGE_REGISTRY)/$(IMAGE_NAME)
 IMAGE_TAG ?= $(IMAGE_REPO):$(IMAGE_TAG_NAME)
 IMAGE_EXTRA_TAGS := $(foreach tag,$(IMAGE_EXTRA_TAG_NAMES),$(IMAGE_REPO):$(tag))
 BASE_IMAGE_FULL ?= debian:buster-slim
+BASE_IMAGE_MINIMAL ?= gcr.io/distroless/base
 
 IMAGE_TAG_RBAC_PROXY ?= gcr.io/kubebuilder/kube-rbac-proxy:v0.5.0
 
@@ -161,18 +162,32 @@ clean-labels:
 generate: controller-gen
 	$(CONTROLLER_GEN) object:headerFile="utils/boilerplate.go.txt" paths="./..."
 
-# Build the docker image
+# Build the container image
 image:
 	$(IMAGE_BUILD_CMD) -t $(IMAGE_TAG) \
+		--target full \
 		--build-arg BASE_IMAGE_FULL=$(BASE_IMAGE_FULL) \
+		--build-arg BASE_IMAGE_MINIMAL=$(BASE_IMAGE_MINIMAL) \
 		$(foreach tag,$(IMAGE_EXTRA_TAGS),-t $(tag)) \
 		$(IMAGE_BUILD_EXTRA_OPTS) ./
 
-# Push the docker image
-push:
+image-minimal:
+	$(IMAGE_BUILD_CMD) -t $(IMAGE_TAG)-minimal \
+		--target minimal \
+		--build-arg BASE_IMAGE_FULL=$(BASE_IMAGE_FULL) \
+		--build-arg BASE_IMAGE_MINIMAL=$(BASE_IMAGE_MINIMAL) \
+		$(foreach tag,$(IMAGE_EXTRA_TAGS),-t $(tag)-minimal) \
+		$(IMAGE_BUILD_EXTRA_OPTS) ./
+
+# Push the container image
+push: 
 	$(IMAGE_PUSH_CMD) $(IMAGE_TAG)
 	for tag in $(IMAGE_EXTRA_TAGS); do $(IMAGE_PUSH_CMD) $$tag; done
 
+push-minimal:
+	$(IMAGE_PUSH_CMD) $(IMAGE_TAG)-minimal
+	for tag in $(IMAGE_EXTRA_TAGS); do $(IMAGE_PUSH_CMD) $$tag; done
+
 site-build:
 	@mkdir -p docs/vendor/bundle
 	$(SITE_BUILD_CMD) sh -c '/usr/local/bin/bundle install && "$$BUNDLE_BIN/jekyll" build $(JEKYLL_OPTS)'

scripts/test-infra/build-image.sh

@@ -1,3 +1,3 @@
 #!/bin/bash -e
 
-make image
+make image image-minimal

scripts/test-infra/push-image.sh

@@ -5,5 +5,5 @@
 # container image tag
 VERSION_OVERRIDE=${_GIT_TAG+VERSION=${_GIT_TAG:10}}
 
-make image $VERSION_OVERRIDE
-make push $VERSION_OVERRIDE
+make image image-minimal $VERSION_OVERRIDE
+make push push-minimal $VERSION_OVERRIDE