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make coredns/Dockerfile use build stages (#424)

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* make coredns/Dockerfile use build stages

This change makes the coredns Dockerfile use build stages to create
the binaries which are then copied to the image for running.

* removing deps
This commit is contained in:
Jon Friesen 2018-09-14 13:36:30 -07:00 committed by Jess Frazelle
parent 35e8964699
commit 3bfafa2f4c
1 changed files with 21 additions and 22 deletions
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43
coredns/Dockerfile
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@ -1,32 +1,31 @@
FROM alpine:latest FROM alpine:latest as builder
LABEL maintainer "Jessie Frazelle <jess@linux.com>" LABEL maintainer "Jessie Frazelle <jess@linux.com>"
ENV PATH /go/bin:/usr/local/go/bin:$PATH ENV PATH /go/bin:/usr/local/go/bin:$PATH
ENV GOPATH /go ENV GOPATH /go
RUN apk --no-cache add \ RUN apk --no-cache add \
ca-certificates ca-certificates
ENV COREDNS_VERSION v1.2.2 ENV COREDNS_VERSION v1.2.2
RUN buildDeps=' \ RUN set -x \
go \ && apk --no-cache add \
git \ go \
gcc \ git \
g++ \ gcc \
libc-dev \ g++ \
libgcc \ libc-dev \
make \ libgcc \
' \ make \
set -x \ && git clone --depth 1 --branch ${COREDNS_VERSION} https://github.com/coredns/coredns /go/src/github.com/coredns/coredns \
&& apk --no-cache add $buildDeps \ && cd /go/src/github.com/coredns/coredns \
&& git clone --depth 1 --branch ${COREDNS_VERSION} https://github.com/coredns/coredns /go/src/github.com/coredns/coredns \ && make CHECKS="godeps" \
&& cd /go/src/github.com/coredns/coredns \ && mv coredns /usr/bin/coredns \
&& make CHECKS="godeps" \ && echo "Build complete."
&& mv coredns /usr/bin/coredns \
&& apk del $buildDeps \
&& rm -rf /go \
&& echo "Build complete."
FROM alpine:latest
ENTRYPOINT [ "coredns", "-log" ] COPY --from=builder /usr/bin/coredns /usr/bin/coredns
ENTRYPOINT [ "coredns", "-log" ]