Add minimal Dockerfile without alpine base

closes #5

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.dockerignore

@@ -0,0 +1 @@
+src

Dockerfile.minimal

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+FROM golang:alpine as builder
+
+ENV CGO_ENABLED=0
+
+ADD . /go/src/github.com/Luzifer/ots
+WORKDIR /go/src/github.com/Luzifer/ots
+
+RUN set -ex \
+ && apk add --update git \
+ && go install -ldflags "-X main.version=$(git describe --tags || git rev-parse --short HEAD || echo dev)"
+
+FROM scratch
+
+LABEL maintainer "Knut Ahlers <knut@ahlers.me>"
+
+COPY --from=builder /go/bin/ots /usr/local/bin/ots
+
+EXPOSE 3000
+
+ENTRYPOINT ["/usr/local/bin/ots"]
+CMD ["--"]
+
+# vim: set ft=Dockerfile: