dockerfile-distroless

dockerfile                                                                                                                                                                                           ◀◀ buffers 
# Start by building the application.                                                                                                                                                                            
FROM golang:1.10 as build                                                                                                                                                                                       
                                                                                                                                                                                                                
WORKDIR /go/src/app                                                                                                                                                                                             
COPY . .                                                                                                                                                                                                        
                                                                                                                                                                                                                
# RUN go get -d -v ./...                                                                                                                                                                                        
RUN go install -v ./...                                                                                                                                                                                         
                                                                                                                                                                                                                
# Now copy it into our base image.                                                                                                                                                                              
FROM gcr.io/distroless/base                                                                                                                                                                                     
COPY --from=build /go/bin/app /                                                                                                                                                                                 
CMD ["/app"]   

multi-stage usando alpine

Start by building the application.

FROM golang:1.10 as builder
RUN mkdir /go/src/app
WORKDIR /go/src/app
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
RUN cp /go/src/app/app /go/bin/app

Now copy it into our base image.

FROM alpine:3.8
WORKDIR /
COPY --from=builder /go/bin/app /
RUN chmod +x /app
RUN apk add --update bash
RUN apk --no-cache add ca-certificates
CMD ["/app"]