Remove Dockerfile.in rewrite hack and use updated arg in Dockerfile

.gitignore

@@ -1,5 +1,4 @@
 /bin/
-/Dockerfile
 /test/bin/
 /*.tar.gz
 ci.env

Dockerfile

@@ -12,7 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM @BASEIMAGE@
+ARG BASEIMAGE
+FROM ${BASEIMAGE}
+
 MAINTAINER Random Liu <lantaol@google.com>
 
 RUN clean-install util-linux libsystemd0 bash
@@ -20,11 +22,10 @@ RUN clean-install util-linux libsystemd0 bash
 # Avoid symlink of /etc/localtime.
 RUN test -h /etc/localtime && rm -f /etc/localtime && cp /usr/share/zoneinfo/UTC /etc/localtime || true
 
-ADD ./bin/node-problem-detector /node-problem-detector
-ADD ./bin/health-checker /home/kubernetes/bin/health-checker
+COPY ./bin/node-problem-detector /node-problem-detector
 
-# Below command depends on ENABLE_JOURNAL=1.
-ADD ./bin/log-counter /home/kubernetes/bin/log-counter
+ARG LOGCOUNTER
+COPY ./bin/health-checker ${LOGCOUNTER} /home/kubernetes/bin/
 
-ADD config /config
-ENTRYPOINT ["/node-problem-detector", "--system-log-monitors=/config/kernel-monitor.json"]
+COPY config /config
+ENTRYPOINT ["/node-problem-detector", "--config.system-log-monitor=/config/kernel-monitor.json"]

Makefile

@@ -64,6 +64,7 @@ CGO_ENABLED:=0
 
 # Construct the "-tags" parameter used by "go build".
 BUILD_TAGS?=
+
 ifeq ($(ENABLE_JOURNALD), 1)
 	# Enable journald build tag.
 	BUILD_TAGS:=$(BUILD_TAGS) journald
@@ -73,6 +74,11 @@ ifeq ($(ENABLE_JOURNALD), 1)
 	# here, because go-systemd uses dlopen, and dlopen will not work properly in a
 	# statically linked application.
 	CGO_ENABLED:=1
+	LOGCOUNTER=./bin/log-counter
+else
+	# Hack: Don't copy over log-counter, use a wildcard path that shouldnt match
+	# anything in COPY command.
+	LOGCOUNTER=*dont-include-log-counter
 endif
 
 vet:
@@ -175,14 +181,6 @@ endif
 		-tags "$(BUILD_TAGS)" \
 		cmd/healthchecker/health_checker.go
 
-Dockerfile: Dockerfile.in
-	sed -e 's|@BASEIMAGE@|$(BASEIMAGE)|g' $< >$@
-ifneq ($(ENABLE_JOURNALD), 1)
-	sed -i '/Below command depends on ENABLE_JOURNAL=1/,+2d' $@
-	echo "Warning: log-counter requires journald, skipping."
-endif
-
-
 test: vet fmt
 	GO111MODULE=on go test -mod vendor -timeout=1m -v -race -short -tags "$(BUILD_TAGS)" ./...
 
@@ -199,7 +197,7 @@ e2e-test: vet fmt build-tar
 build-binaries: ./bin/node-problem-detector ./bin/log-counter ./bin/health-checker
 
 build-container: build-binaries Dockerfile
-	docker build -t $(IMAGE) .
+	docker build -t $(IMAGE) --build-arg BASEIMAGE=$(BASEIMAGE) --build-arg LOGCOUNTER=$(LOGCOUNTER) .
 
 build-tar: ./bin/node-problem-detector ./bin/log-counter ./bin/health-checker ./test/bin/problem-maker
 	tar -zcvf $(TARBALL) bin/ config/ test/e2e-install.sh test/bin/problem-maker