Set overrided version in drone config

.drone.yml

@@ -6,6 +6,8 @@ steps:
 
   - name: test
     image: golang:1.12
+    environment:
+      VERSION: ${DRONE_TAG:-${DRONE_COMMIT}}
     commands:
       - make build
       - make test
@@ -47,6 +49,8 @@ trigger:
 steps:
   - name: build all binaries
     image: golang:1.12
+    environment:
+      VERSION: ${DRONE_TAG:-${DRONE_COMMIT}}
     commands:
       - make all-linux
 

Makefile

@@ -1,5 +1,5 @@
 DOCKER_TAG ?= minitor-go-${USER}
-export VERSION := $(shell git describe --tags --dirty)
+VERSION ?= $(shell git describe --tags --dirty)
 GOFILES = *.go
 # Multi-arch targets are generated from this
 TARGET_ALIAS = minitor-linux-amd64 minitor-linux-arm minitor-linux-arm64 minitor-darwin-amd64