TUN-804: create makefile recipe to release cloudflared using equinox

Makefile

@@ -6,6 +6,16 @@ IMPORT_PATH   := github.com/cloudflare/cloudflared
 PACKAGE_DIR   := $(CURDIR)/packaging
 INSTALL_BINDIR := usr/local/bin
 
+EQUINOX_FLAGS = --version="$(VERSION)" \
+				 --platforms="$(EQUINOX_BUILD_PLATFORMS)" \
+				 --app="$(EQUINOX_APP_ID)" \
+				 --token="$(EQUINOX_TOKEN)" \
+				 --channel="$(EQUINOX_CHANNEL)"
+
+ifeq ($(EQUINOX_IS_DRAFT), true)
+	EQUINOX_FLAGS := --draft $(EQUINOX_FLAGS)
+endif
+
 .PHONY: all
 all: cloudflared test
 
@@ -23,3 +33,11 @@ cloudflared-deb: cloudflared
 	cp cloudflared $(PACKAGE_DIR)/cloudflared
 	fakeroot fpm -C $(PACKAGE_DIR) -s dir -t deb --deb-compression bzip2 \
 		-a $(GOARCH) -v $(VERSION) -n cloudflared
+
+.PHONY: release
+release: bin/equinox
+	bin/equinox release $(EQUINOX_FLAGS) -- $(VERSION_FLAGS) $(IMPORT_PATH)/cmd/cloudflared
+
+bin/equinox:
+	mkdir -p bin
+	curl -s https://bin.equinox.io/c/75JtLRTsJ3n/release-tool-beta-$(EQUINOX_PLATFORM).tgz | tar xz -C bin/