FROM golang:alpine as builder
MAINTAINER Jessica Frazelle <jess@linux.com>

ENV PATH /go/bin:/usr/local/go/bin:$PATH
ENV GOPATH /go

RUN	apk add --no-cache \
	ca-certificates

COPY main.go /go/src/k8scan/

RUN set -x \
	&& apk add --no-cache --virtual .build-deps \
		git \
		gcc \
		libc-dev \
		libgcc \
		make \
	&& go get honnef.co/go/tools/cmd/staticcheck \
	&& go get github.com/golang/lint/golint \
	&& cd /go/src/k8scan/ \
	&& go get -d . \
	&& gofmt -s -l . \
	&& go vet ./... \
	&& golint ./... \
	&& staticcheck ./... \
	&& go test ./... \
	&& CGO_ENABLED=0 go build -a -tags netgo -ldflags '-w -extldflags "-static"' -o /usr/bin/k8scan *.go \
	&& apk del .build-deps \
	&& rm -rf /go \
	&& echo "Build complete."

FROM scratch

COPY --from=builder /usr/bin/k8scan /usr/bin/k8scan
COPY --from=builder /etc/ssl/certs/ /etc/ssl/certs

ENTRYPOINT [ "k8scan" ]
CMD [ "--help" ]