Makefile

# Copyright (c) 2017 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
#

TARGET = kata-agent
SOURCES := $(shell find . 2>&1 | grep -E '.*\.go$$')

DESTDIR :=
PREFIX := /usr
BINDIR := $(PREFIX)/bin
# Define if agent will be installed as init
INIT := no

# Set to "yes" if agent should support OpenTracing with http://jaegertracing.io.
TRACE := no

# Set to "yes“ if binary stripping is needed.
STRIP := no

# Tracing cannot currently be supported when running the agent as PID 1 since
# the tracing requires additional services to be started _before_ the agent
# process starts.
#
# These services are required since Jaeger does not currently support VSOCK.
# Once Jaeger does support VSOCK, this limitation can be removed as the
# additional services will no longer be required.
#
# See TRACING.md for further details.
ifeq ($(TRACE),yes)
  ifeq ($(INIT),yes)
    $(error ERROR: "TRACE=yes" requires "INIT=no")
  endif
endif

# If "yes", install additional services to redirect guest OS journal messages
# to the host using VSOCK.
TRACE_DEV_MODE := no

# Path to systemd unit directory if installed as not init.
UNIT_DIR := /usr/lib/systemd/system

HAVE_SYSTEMD := $(shell pkg-config --exists systemd 2>/dev/null && echo 'yes')

ifeq ($(HAVE_SYSTEMD),yes)
	UNIT_DIR := $(shell pkg-config --variable=systemdsystemunitdir systemd)
endif

# Path to systemd drop-in snippet directory used to override the agent's
# service without having to modify the pristine agent service file.
SNIPPET_DIR := /etc/systemd/system/$(AGENT_SERVICE).d/

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

ifeq ($(TRACE),yes)
    UNIT_FILES += jaeger-client-socat-redirector.service
endif

ifeq ($(TRACE_DEV_MODE),yes)
    UNIT_FILES += kata-journald-host-redirect.service
    SNIPPET_FILES += kata-redirect-agent-output-to-journal.conf
endif

VERSION_FILE := ./VERSION
VERSION := $(shell grep -v ^\# $(VERSION_FILE))
COMMIT_NO := $(shell git rev-parse HEAD 2> /dev/null || true)
COMMIT_NO_SHORT := $(shell git rev-parse --short HEAD 2> /dev/null || true)
COMMIT := $(if $(shell git status --porcelain --untracked-files=no),${COMMIT_NO}-dirty,${COMMIT_NO})
VERSION_COMMIT := $(if $(COMMIT),$(VERSION)-$(COMMIT),$(VERSION))
ARCH := $(shell go env GOARCH)
ifeq ($(SECCOMP),yes)
    BUILDTAGS := seccomp
else
    SECCOMP=no
endif
# go build common flags
ifdef STATIC
	STATIC_LDFLAGS := -extldflags '-static'
else
	BUILDFLAGS := -buildmode=pie
endif

# whether stipping the binary
ifeq ($(STRIP),yes)
	KATA_LDFLAGS += -w -s
endif

# args for building agent image
BUILDARGS := $(if $(http_proxy), --build-arg http_proxy=$(http_proxy))
BUILDARGS += $(if $(https_proxy), --build-arg https_proxy=$(https_proxy))
BUILDARGS += $(if $(ARCH), --build-arg arch=$(ARCH))
AGENT_IMAGE := katacontainers/agent-dev
AGENT_TAG := $(if $(COMMIT_NO_SHORT),$(COMMIT_NO_SHORT),dev)

$(TARGET): $(GENERATED_FILES) $(SOURCES) $(VERSION_FILE)
	go build $(BUILDFLAGS) -tags "$(BUILDTAGS)" -o $@ \
		-ldflags "-X main.version=$(VERSION_COMMIT) -X main.seccompSupport=$(SECCOMP) $(STATIC_LDFLAGS) $(KATA_LDFLAGS)"

install: $(TARGET)
	install -D $(TARGET) $(DESTDIR)$(BINDIR)/$(TARGET)
ifeq ($(INIT),no)
	@echo "Installing systemd unit files..."
	$(foreach f,$(UNIT_FILES),$(call INSTALL_FILE,$f,$(UNIT_DIR)))
endif
ifeq ($(TRACE_DEV_MODE),yes)
	@echo "Installing systemd snippet files..."
	@mkdir -p $(SNIPPET_DIR)
	$(foreach f,$(SNIPPET_FILES),$(call INSTALL_FILE,$f,$(SNIPPET_DIR)))
endif

build-image:
	# build an docker image for development
	docker build ${BUILDARGS} -t ${AGENT_IMAGE}:${AGENT_TAG} .

proto: build-image
	docker run -i -v ${PWD}:/go/src/github.com/kata-containers/agent ${AGENT_IMAGE}:${AGENT_TAG} ./hack/update-generated-agent-proto.sh

.PHONY: clean test
clean:
	rm -f $(TARGET) $(GENERATED_FILES)

test:
	bash .ci/go-test.sh

check: check-go-static

check-go-static:
	bash .ci/static-checks.sh

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[@]|$(TARGET)|g' \
		"$<" > "$@"