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Update Dockerfile to support multiple architectures #1236

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Update Dockerfile to support multiple architectures #1236

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25 changes: 18 additions & 7 deletions scripts/kata-install/Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,15 +1,26 @@
FROM registry.access.redhat.com/ubi9/skopeo:9.6-1760517870

RUN mkdir -p /files
ARG UMO_VERSION=0.4.7
ARG TARGETARCH

ADD 50-kata-remote configuration-remote.toml /files/

RUN mkdir -p /scripts
RUN mkdir -p /files /scripts

ADD 50-kata-remote configuration-remote.toml /files/
ADD osc-kata-install.sh osc-configs-script.sh osc-log-level.sh lib.sh /scripts/

RUN curl -sSL "https://github.com/opencontainers/umoci/releases/download/v0.4.7/umoci.amd64" -o "/usr/local/bin/umoci" &&\
chmod +x "/usr/local/bin/umoci"
# fetch the right umoci binary for the target arch
RUN set -eux; \
case "${TARGETARCH}" in \
amd64) UMO_SUFFIX=amd64 ;; \
arm64) UMO_SUFFIX=arm64 ;; \
ppc64le) UMO_SUFFIX=ppc64le ;; \
s390x) UMO_SUFFIX=s390x ;; \
*) echo "Unsupported TARGETARCH: ${TARGETARCH}"; exit 1 ;; \
esac; \
curl -fsSL "https://github.com/opencontainers/umoci/releases/download/v${UMO_VERSION}/umoci.${UMO_SUFFIX}" \
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@gkurz gkurz Oct 27, 2025

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This might be okay for now but we'll have to get umoci from an official image in the RH repository when we go GA.

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@gcoon151 gcoon151 Oct 27, 2025

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My searches turned up empty for an official umoci from RH. Happy to update with wherever we want to pull that from.

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@littlejawa littlejawa Oct 28, 2025

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I had a look, there is no packaging.
I think there are two ways out of it:

  • pre-fetch the binaries themselves, from the github repo (which means declaring each binary with path and checksum, and let the CI job pull them before the build starts)
  • build umoci as part of the container image build

I didn't dig to search for alternatives, those are the most obvious. We can decide what option we take when we get to it.

-o /usr/local/bin/umoci; \
chmod +x /usr/local/bin/umoci; \
# optional: verify it runs and prints a version
/usr/local/bin/umoci --version || { echo "umoci not runnable"; exit 1; }

CMD ["/scripts/osc-kata-install.sh"]