Add plugin development framework (#4324)

Makefile

@@ -92,4 +92,15 @@ docker-image:
 plugins/parsers/influx/machine.go: plugins/parsers/influx/machine.go.rl
 	ragel -Z -G2 $^ -o $@
 
-.PHONY: deps telegraf install test test-windows lint vet test-all package clean docker-image fmtcheck uint64
+static:
+	@echo "Building static linux binary..."
+	@CGO_ENABLED=0 \
+	GOOS=linux \
+	GOARCH=amd64 \
+	go build -ldflags "$(LDFLAGS)" ./cmd/telegraf
+
+plugin-%:
+	@echo "Starting dev environment for $${$(@)} input plugin..."
+	@docker-compose -f plugins/inputs/$${$(@)}/dev/docker-compose.yml up
+
+.PHONY: deps telegraf install test test-windows lint vet test-all package clean docker-image fmtcheck uint64 static