Merge pull request kata-containers#41 from jcvenegas/install-target

makefile: Add install target

.gitignore

@@ -1 +1,3 @@
 kata-agent
+kata-agent.service
+agent

Makefile

@@ -1,8 +1,44 @@
 TARGET = kata-agent
 
-$(TARGET):
+DESTDIR :=
+PREFIX := /usr
+BINDIR := $(PREFIX)/bin
+# Define if agent will be installed as init
+INIT := no
+# Path to systemd unit directory if installed as not init.
+UNIT_DIR := /usr/lib/systemd/system
+
+GENERATED_FILES :=
+
+ifeq ($(INIT),no)
+# Unit file to start kata agent in systemd systems
+UNIT_FILES = kata-agent.service
+GENERATED_FILES := $(UNIT_FILES)
+# Target to be reached in systemd services
+UNIT_FILES += kata-containers.target
+endif
+
+$(TARGET): $(GENERATED_FILES)
 	go build -o $@
 
+install:
+	install -D $(TARGET) $(DESTDIR)$(BINDIR)/$(TARGET)
+ifeq ($(INIT),no)
+	@echo "Installing systemd unit files..."
+	$(foreach f,$(UNIT_FILES),$(call INSTALL_FILE,$f,$(UNIT_DIR)))
+endif
+
 .PHONY: clean
 clean:
-	rm -f $(TARGET)
+	rm -f $(TARGET) $(GENERATED_FILES)
+
+define INSTALL_FILE
+	install -D -m 644 $1 $(DESTDIR)$2/$1 || exit 1;
+endef
+
+$(GENERATED_FILES): %: %.in
+	@mkdir -p `dirname $@`
+	@sed \
+		-e 's|[@]bindir[@]|$(BINDIR)|g' \
+		-e 's|[@]kata-agent[@]|$(TARGET)|g' \
+		"$<" > "$@"

kata-agent.service.in

@@ -0,0 +1,14 @@
+[Unit]
+Description=Kata Containers Agent
+Documentation=https://github.com/kata-containers/agent
+Wants=kata-containers.target
+
+[Service]
+# Send agent output to tty to allow capture debug logs
+# from a VM serial port
+StandardOutput=tty
+Type=simple
+ExecStart=@bindir@/@kata-agent@
+LimitNOFILE=infinity
+ExecStop=/bin/sync ; /usr/bin/systemctl --force poweroff
+FailureAction=poweroff

kata-containers.target

@@ -0,0 +1,7 @@
+[Unit]
+Description=Kata Containers Agent Target
+Requires=basic.target
+Requires=kata-agent.service
+Conflicts=rescue.service rescue.target
+After=basic.target rescue.service rescue.target
+AllowIsolate=yes