Add make targets for build and install

Makefile

@@ -10,13 +10,29 @@ else
 endif
 
 export VERSION?=$(shell (git describe --abbrev=0 --tags | sed -e 's/v//') || echo $(cat VERSION)-$(git log -1 --pretty='%h'))
-PRERELEASE=`grep -q dev <<< "${VERSION}" && echo "pre" || echo ""`
+PRERELEASE=`echo "${VERSION}" | grep -q dev && echo "pre" || echo ""`
 REVISION?=`git log -1 --pretty='%h'`
 export CRI_DOCKERD_LDFLAGS=-ldflags "-s -w -buildid=${REVISION} \
 	-X github.com/Mirantis/cri-dockerd/cmd/version.Version=${VERSION} \
 	-X github.com/Mirantis/cri-dockerd/cmd/version.PreRelease=${PRERELEASE} \
 	-X github.com/Mirantis/cri-dockerd/cmd/version.GitCommit=${REVISION}"
 
+all: cri-dockerd
+
+# always run go build
+cri-dockerd: FORCE
+	GOARCH=$(ARCH) go build -trimpath $(CRI_DOCKERD_LDFLAGS) -o $@
+FORCE:
+
+prefix ?= /usr/local
+
+install:
+	@mkdir -p $(DESTDIR)$(prefix)/bin
+	install -o root -g root -m 0755 cri-dockerd $(DESTDIR)$(prefix)/bin/cri-dockerd
+	@mkdir -p $(DESTDIR)$(prefix)/lib/systemd/system
+	install packaging/systemd/cri-docker.service packaging/systemd/cri-docker.socket $(DESTDIR)$(prefix)/lib/systemd/system
+	sed -i -e 's,/usr/bin/cri-dockerd,$(prefix)/bin/cri-dockerd,' $(DESTDIR)$(prefix)/lib/systemd/system/cri-docker.service
+
 .PHONY: help
 help: ## show make targets
 	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {sub("\\\\n",sprintf("\n%22c"," "), $$2);printf " \033[36m%-20s\033[0m  %s\n", $$1, $$2}' $(MAKEFILE_LIST)
@@ -52,4 +68,5 @@ cross-arm: ## build static packages
 
 .PHONY: clean
 clean: ## clean the build artifacts
+	$(RM) cri-dockerd
 	-$(MAKE) -C $(PACKAGING_DIR) clean

README.md

@@ -51,9 +51,7 @@ source ~/.bash_profile
 
 ```shell
 cd cri-dockerd
-mkdir bin
-VERSION=$((git describe --abbrev=0 --tags | sed -e 's/v//') || echo $(cat VERSION)-$(git log -1 --pretty='%h')) PRERELEASE=$(grep -q dev <<< "${VERSION}" && echo "pre" || echo "") REVISION=$(git log -1 --pretty='%h')
-go build -ldflags="-X github.com/Mirantis/cri-dockerd/version.Version='$VERSION}' -X github.com/Mirantis/cri-dockerd/version.PreRelease='$PRERELEASE' -X github.com/Mirantis/cri-dockerd/version.BuildTime='$BUILD_DATE' -X github.com/Mirantis/cri-dockerd/version.GitCommit='$REVISION'" -o cri-dockerd
+make
 ```
 
 To build for a specific architecture, add `ARCH=` as an argument, where `ARCH` is a known build target for golang