Add golang to personal image

Dockerfile.personal

@@ -1,6 +1,11 @@
 ARG BASE_IMAGE=iamthefij/drone-pre-commit
 FROM ${BASE_IMAGE}:base
 
+RUN apt-get update && \
+        apt-get install -y --no-install-recommends golang=2:1.11~1 && \
+        apt-get clean && \
+        rm -rf /var/lib/apt/lists/*
+
 # Add helper scripts
 COPY ./scripts /scripts
 

Makefile

@@ -16,7 +16,11 @@ build: ./Dockerfile
 
 .PHONY: build-personal
 build-personal: build ./Dockerfile.personal
-	docker build --build-arg "BASE_IMAGE=$(DOCKER_TAG)" -f ./Dockerfile.personal .
+	docker build \
+		--build-arg "BASE_IMAGE=$(DOCKER_TAG)" \
+		-f ./Dockerfile.personal \
+		-t "$(DOCKER_TAG):personal" \
+		.
 
 .PHONY: install-hooks
 install-hooks: