default:
	# server
	openssl genrsa -out server.key 2048
	openssl req -new -x509 -days 3650 \
		-subj "/C=GB/L=China/O=grpc-server/CN=server.grpc.io" \
		-key server.key -out server.crt

	# client
	openssl genrsa -out client.key 2048
	openssl req -new -x509 -days 3650 \
		-subj "/C=GB/L=China/O=grpc-client/CN=client.grpc.io" \
		-key client.key -out client.crt


clean:
	-rm *.key *.crt *.csr *.srl