From 12c3b5f7848507ed641ba603ad5520089ce56257 Mon Sep 17 00:00:00 2001
From: Ruben Jenster <r.jenster@drachenfels.de>
Date: Mon, 20 Dec 2021 21:43:20 +0000
Subject: [PATCH] add Dockerfile and build script

---
 Dockerfile | 12 ++++++++++++
 Makefile   | 25 +++++++++++++++----------
 build.sh   | 14 ++++++++++++++
 3 files changed, 41 insertions(+), 10 deletions(-)
 create mode 100644 Dockerfile
 create mode 100755 build.sh

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..7a70e35
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,12 @@
+FROM docker.io/library/golang:1.17-alpine3.14 as build
+RUN apk --no-cache add make build-base git
+ARG GONOSUMDB
+ARG GOPROXY
+ARG GOBIN=/opt/bin
+ARG RELEASE="${RELEASE:-undefined}"
+WORKDIR /build
+ADD . .
+RUN STATIC=true make install
+
+FROM scratch
+COPY --from=build /opt/bin/goget /
diff --git a/Makefile b/Makefile
index 9c6c786..6092bc2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,17 @@
-BUILD_HASH := $(shell git describe --always --tags --long)
-LDFLAGS := "-X main.version=${BUILD_HASH} -s -w"
+COMMIT = $(shell git describe --always --tags --long --dirty)
+
+RELEASE ?= $(COMMIT)
+LDFLAGS := -X main.version=$(RELEASE)
+
+ifdef STATIC
+LDFLAGS += -w -s -extldflags=-static
+export CGO_ENABLED=0
+endif
+
+all: fmt install
+
+fmt:
+	go fmt ./...
 
-.PHONY: install
 install:
-	go fmt ./...
-	go install -ldflags ${LDFLAGS} ./...
-
-.PHONY: build
-build:
-	go fmt ./...
-	go build -ldflags ${LDFLAGS} ./...
+	go install -ldflags "${LDFLAGS}" ./...
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..05f6330
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,14 @@
+#!/bin/sh -eu
+
+image="harbor.intern.drachenfels.de/shieldos/goget"
+version="$(git describe --always --tags --dirty)"
+
+buildah bud --layers \
+	--build-arg GOPROXY=$GOPROXY \
+	--build-arg GONOSUMDB=$GONOSUMDB \
+	--build-arg RELEASE=$version \
+	-t $image:latest \
+	-t $image:$version
+
+buildah push $image:latest
+buildah push $image:$version