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remove multistep build, build go last, allowing cached build layers (for debug image) #1903

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Apr 24, 2024
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remove multistep build, build go last, allowing cached build layers (for debug image) #1903

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23 changes: 8 additions & 15 deletions Dockerfile.debug
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Original file line number Diff line number Diff line change
Expand Up @@ -2,31 +2,24 @@
# and are in no way endorsed by Headscale's maintainers as an
# official nor supported release or distribution.

FROM docker.io/golang:1.22-bookworm AS build
FROM docker.io/golang:1.22-bookworm
ARG VERSION=dev
ENV GOPATH /go
WORKDIR /go/src/headscale

COPY go.mod go.sum /go/src/headscale/
RUN go mod download

COPY . .

RUN CGO_ENABLED=0 GOOS=linux go install -ldflags="-s -w -X github.com/juanfont/headscale/cmd/headscale/cli.Version=$VERSION" -a ./cmd/headscale
RUN test -e /go/bin/headscale

# Debug image
FROM docker.io/golang:1.22-bookworm

COPY --from=build /go/bin/headscale /bin/headscale
ENV TZ UTC

RUN apt-get update \
&& apt-get install --no-install-recommends --yes less jq \
&& rm -rf /var/lib/apt/lists/* \
&& apt-get clean
RUN mkdir -p /var/run/headscale

COPY go.mod go.sum /go/src/headscale/
RUN go mod download

COPY . .

RUN CGO_ENABLED=0 GOOS=linux go install -ldflags="-s -w -X github.com/juanfont/headscale/cmd/headscale/cli.Version=$VERSION" -a ./cmd/headscale && test -e /go/bin/headscale

# Need to reset the entrypoint or everything will run as a busybox script
ENTRYPOINT []
EXPOSE 8080/tcp
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