restic-exporter/Dockerfile

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FROM golang:1.20-alpine3.18 AS builder
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ENV RESTIC_VERSION 0.15.2
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ENV CGO_ENABLED 0
RUN cd /tmp \
# download restic source code
&& wget https://github.com/restic/restic/archive/refs/tags/v${RESTIC_VERSION}.tar.gz -O restic.tar.gz \
&& tar xvf restic.tar.gz \
&& cd restic-* \
# build the executable
# flag -ldflags "-s -w" produces a smaller executable
&& go build -ldflags "-s -w" -v -o /tmp/restic ./cmd/restic
FROM python:3.11-alpine3.18
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RUN apk add --no-cache --update openssh tzdata
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COPY --from=builder /tmp/restic /usr/bin
COPY entrypoint.sh requirements.txt /
RUN pip install -r /requirements.txt \
# remove temporary files
&& rm -rf /root/.cache
COPY ./restic-exporter.py /restic-exporter.py
EXPOSE 8001
CMD [ "/entrypoint.sh" ]
# Help
#
# Local build
# docker build -t restic-exporter:custom .
#
# Multi-arch build
# docker buildx create --use
# docker buildx build -t restic-exporter:custom --platform linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/ppc64le,linux/s390x .
#
# add --push to publish in DockerHub