Dockerfile,Makefile: Use debian stretch over alpine

Signed-off-by: Alexander Jung <a.jung@lancs.ac.uk>

Dockerfile

@@ -30,17 +30,18 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 ARG GO_VERSION=1.14
-ARG ALPINE_VERSION=3.12
 
-FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS base
+FROM golang:${GO_VERSION}-stretch AS base
 
 ARG ORG=lancs-net
 ARG BIN=ukbench
 
 RUN set -xe; \
-    apk --no-cache add \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+      build-essential \
       make \
-      git
+      git;
 
 COPY . /go/src/github.com/${ORG}/${BIN}
 WORKDIR /go/src/github.com/${ORG}/${BIN}

Makefile

@@ -102,14 +102,12 @@ $(.PROXY)build:
 
 # Create an environment where we can build
 .PHONY: container
-container: ALPINE_VERSION     ?= 3.12
 container: GO_VERSION         ?= 1.14
 container: DOCKER_BUILD_EXTRA ?=
 container:
 	$(DOCKER) build \
 		--build-arg ORG=$(ORG) \
 		--build-arg BIN=$(BIN) \
-		--build-arg ALPINE_VERSION=$(ALPINE_VERSION) \
 		--build-arg GO_VERSION=$(GO_VERSION) \
 		--tag $(IMAGE) \
 		$(DOCKER_BUILD_EXTRA) $(WORKDIR)