Makefile

ALL=messages/messages.pb.go bin/server bin/client bin/hdrclient bin/sds names/names.pb.go bin/names
SSL_CNF_PATH=/tmp/gencert-ssl.cnf

all: prereq gencert $(ALL)

.PHONY: prereq
prereq:
	# dep ensure
	if [ -z "${GOPATH}" ]; then \
	  echo "GOPATH is not set"; \
	  exit 1; \
	fi
	which openssl >/dev/null;
	if [ $$? -ne 0 ]; then \
	  >&2 echo "OpenSSL is not installed"; \
	  exit 1; \
	fi
	which protoc >/dev/null
	if [ $$? -ne 0 ]; then \
	  curl -OL https://github.com/google/protobuf/releases/download/v3.6.1/protoc-3.6.1-linux-x86_64.zip; \
	  unzip protoc-3.6.1-linux-x86_64.zip -d /tmp/protoc3; \
	  sudo mv /tmp/protoc3/bin/* /usr/bin/; \
	  sudo mv /tmp/protoc3/include/* /usr/include; \
	fi
	go get google.golang.org/grpc

.PHONY: gencert
gencert:
	mkdir -p config/certs
	if [ ! -f config/certs/envoy.key -o ! -f config/certs/envoy.crt ]; then \
	  openssl genrsa -out config/certs/envoy.key 2048; \
	  printf "\n[SAN]\nsubjectAltName=DNS:localhost,DNS:$$(hostname)" | cat /etc/ssl/openssl.cnf - >$(SSL_CNF_PATH); \
	  openssl req -new -sha256 -key config/certs/envoy.key \
	    -subj "/C=US/ST=CA/O=Acme, Inc./CN=localhost" -reqexts SAN \
	    -config $(SSL_CNF_PATH) \
	    -out config/certs/envoy.csr; \
	  openssl x509 -signkey config/certs/envoy.key \
	    -in config/certs/envoy.csr -req \
	    -days 365 -out config/certs/envoy.crt; \
	fi

messages/messages.pb.go: protos/messages/messages.proto
	mkdir -p messages
	protoc -I $$(dirname $<) $$(basename $<) --go_out=plugins=grpc:$$(dirname $@)

names/names.pb.go: protos/names/names.proto
	mkdir -p names
	protoc -I $$(dirname $<) $$(basename $<) --go_out=plugins=grpc:$$(dirname $@)

bin/server: cmd/server/main.go messages/messages.pb.go
	go build -o $@ ./$$(dirname $<)

bin/names: cmd/names/main.go names/names.pb.go
	go build -o $@ ./$$(dirname $<)

bin/client: cmd/client/main.go messages/messages.pb.go
	go build -o $@ ./$$(dirname $<)

bin/hdrclient: cmd/hdrclient/main.go messages/messages.pb.go
	go build -o $@ ./$$(dirname $<)

bin/sds: cmd/sds/main.go
	go build -o $@ ./$$(dirname $<)

clean:
	rm -rf $(ALL)