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Remove build dependencies from final docker image (multistage build) (#1057)
This multistage build takes the resulting image size down from 346MB to 90MB.
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14
Dockerfile
14
Dockerfile
@ -1,11 +1,13 @@
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FROM alpine:edge
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ENTRYPOINT ["/bin/matterbridge"]
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FROM alpine:edge AS builder
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COPY . /go/src/github.com/42wim/matterbridge
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RUN apk update && apk add go git gcc musl-dev ca-certificates mailcap \
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RUN apk update && apk add go git gcc musl-dev \
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&& cd /go/src/github.com/42wim/matterbridge \
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&& export GOPATH=/go \
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&& go get \
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&& go build -x -ldflags "-X main.githash=$(git log --pretty=format:'%h' -n 1)" -o /bin/matterbridge \
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&& rm -rf /go \
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&& apk del --purge git go gcc musl-dev
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&& go build -x -ldflags "-X main.githash=$(git log --pretty=format:'%h' -n 1)" -o /bin/matterbridge
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FROM alpine:edge
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RUN apk --no-cache add ca-certificates mailcap
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COPY --from=builder /bin/matterbridge /bin/matterbridge
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ENTRYPOINT ["/bin/matterbridge"]
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