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87f26accb7
The intended usage here is to basically kick restic as a background "do it, but don't bother my normal load" process. This allows passing the following environment variables in to influence scheduling: - NICE: usual CPU nice. Defaults to 0. This requires CAP_SYS_NICE to set a negative nice (IE, prioritize). - IONICE_CLASS: usual ionice class. Note that setting realtime requires CAP_SYS_ADMIN. Also note the actual ionice default is "none". - IONICE_PRIORITY: set the priority within the given class. Ignored if no class is specified due to class default of "no scheduler". --------- Signed-off-by: Brian Harring <ferringb@gmail.com> Co-authored-by: Michael Eischer <michael.eischer@fau.de>
32 lines
No EOL
1.2 KiB
Docker
32 lines
No EOL
1.2 KiB
Docker
# the official binaries are cross-built from Linux running on an AMD64 host
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# other architectures also seem to generate identical binaries but stay on the safe side
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FROM --platform=linux/amd64 restic/builder:latest AS helper
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ARG TARGETOS
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ARG TARGETARCH
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COPY --chown=build . /restic
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RUN go run helpers/build-release-binaries/main.go --platform $TARGETOS/$TARGETARCH --skip-compress
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RUN mv /output/restic_${TARGETOS}_${TARGETARCH} /output/restic
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FROM alpine:latest
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LABEL org.opencontainers.image.title="restic"
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LABEL org.opencontainers.image.description="Fast, secure, efficient backup program"
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LABEL org.opencontainers.image.url="https://restic.net"
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LABEL org.opencontainers.image.documentation="https://restic.readthedocs.io"
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LABEL org.opencontainers.image.source="https://github.com/restic/restic"
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COPY --from=helper /output/restic /usr/bin
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COPY ./docker/entrypoint.sh /entrypoint.sh
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RUN apk add --no-cache ca-certificates fuse openssh-client tzdata jq
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# IO class default is "none"- 0, however busybox rejects ionice `-c0 -n<something>`
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# since priority has no meaning for no scheduler.
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# Thus the entrypoint script below is necessary.
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ENV IONICE_CLASS=
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ENV IONICE_PRIORITY=4
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ENV NICE=0
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ENTRYPOINT ["/entrypoint.sh"] |