build static binaries

Makefile

@@ -24,16 +24,17 @@ test:
 build:
 	go build -o $(BUILD)/$(BINARY) -ldflags $(LDFLAGS)
 
+# build static binaries: https://medium.com/@diogok/on-golang-static-binaries-cross-compiling-and-plugins-1aed33499671
 .PHONY: dist
 dist:
 	mkdir -p $(BUILD)
 	mkdir -p $(DIST)
 	cp README.md $(BUILD) && cp LICENSE $(BUILD) && sed -E 's/(version: )"(.+)"/\1"$(VERSION)"/g' plugin.yaml > $(BUILD)/plugin.yaml
-	GOOS=linux GOARCH=amd64 go build -o $(BUILD)/$(BINARY) -ldflags $(LDFLAGS) -a -tags netgo
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o $(BUILD)/$(BINARY) -ldflags $(LDFLAGS) -a -tags netgo
 	tar -C $(BUILD) -zcvf $(DIST)/helm-$(BINARY)-linux-$(VERSION).tgz $(BINARY) README.md LICENSE plugin.yaml
-	GOOS=darwin GOARCH=amd64 go build -o $(BUILD)/$(BINARY) -ldflags $(LDFLAGS) -a -tags netgo
+	CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o $(BUILD)/$(BINARY) -ldflags $(LDFLAGS) -a -tags netgo
 	tar -C $(BUILD) -zcvf $(DIST)/helm-$(BINARY)-macos-$(VERSION).tgz $(BINARY) README.md LICENSE plugin.yaml
-	GOOS=windows GOARCH=amd64 go build -o $(BUILD)/$(BINARY).exe -ldflags $(LDFLAGS) -a -tags netgo
+	CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -o $(BUILD)/$(BINARY).exe -ldflags $(LDFLAGS) -a -tags netgo
 	tar -C $(BUILD) -llzcvf $(DIST)/helm-$(BINARY)-windows-$(VERSION).tgz $(BINARY).exe README.md LICENSE plugin.yaml
 
 .PHONY: bootstrap