Docker build script

Dockerfile

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+FROM golang:1.13 AS builder
+COPY . /app
+WORKDIR /app
+RUN go generate
+RUN \
+    CGO_ENABLED=0 \
+    GOOS=linux \
+    GOPROXY=https://proxy.golang.org,direct \
+    go build -o main main.go
+
+FROM scratch
+COPY contrib/etc_group /etc/group
+COPY contrib/etc_passwd /etc/passwd
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /app/main /main
+USER user
+ENTRYPOINT ["/main"]
+CMD ["server"]

contrib/etc_group

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+nogroup:x:65534:

contrib/etc_passwd

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+user:!x:33:33:nogroup:/var/www:/usr/sbin/nologin