dependabot[bot]
931f4fe36d
Bumps alpine from 3.22 to 3.24. --- updated-dependencies: - dependency-name: alpine dependency-version: '3.24' dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
33 lines
1.6 KiB
Docker
33 lines
1.6 KiB
Docker
FROM alpine:3.24@sha256:a2d49ea686c2adfe3c992e47dc3b5e7fa6e6b5055609400dc2acaeb241c829f4
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ARG SUPERCRONIC_VERSION=v0.2.33
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ARG TARGETARCH
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# SHA-256 of the supercronic v0.2.33 release binaries.
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# Computed from https://github.com/aptible/supercronic/releases/download/v0.2.33/
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# (the upstream project publishes only SHA-1 checksums, so these are recorded here).
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# Dependabot watches FROM lines, not these ARGs — bump manually when SUPERCRONIC_VERSION changes.
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ARG SUPERCRONIC_SHA256_AMD64=feefa310da569c81b99e1027b86b27b51e6ee9ab647747b49099645120cfc671
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ARG SUPERCRONIC_SHA256_ARM64=f1f8585c66de020fef494dd636058f99949d108f569fef00016a1c8b9eb145b3
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# curl stays in the image — the crontab uses it at runtime to call the app.
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RUN apk add --no-cache curl \
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&& case ${TARGETARCH} in \
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amd64) ARCH=linux-amd64; SHA=${SUPERCRONIC_SHA256_AMD64} ;; \
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arm64) ARCH=linux-arm64; SHA=${SUPERCRONIC_SHA256_ARM64} ;; \
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*) ARCH=linux-amd64; SHA=${SUPERCRONIC_SHA256_AMD64} ;; \
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esac \
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&& curl -fsSL "https://github.com/aptible/supercronic/releases/download/${SUPERCRONIC_VERSION}/supercronic-${ARCH}" \
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-o /usr/local/bin/supercronic \
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&& echo "${SHA} /usr/local/bin/supercronic" | sha256sum -c - \
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&& chmod 0755 /usr/local/bin/supercronic
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# Run as the alpine-built-in unprivileged user. Defense-in-depth alongside
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# cap_drop:[ALL] and read_only:true in docker-compose.yml. The crontab is
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# bind-mounted read-only with default 644 perms (readable by all), and the
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# supercronic binary is world-executable (chmod 0755 above).
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USER nobody:nobody
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ENTRYPOINT ["supercronic"]
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CMD ["/etc/supercronic/crontab"]
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