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CI builds linux/amd64 and linux/arm64 images, but the Dockerfile always downloaded the linux/amd64 orka3 build, so the arm64 image shipped an x86 CLI. Use TARGETARCH, falling back to amd64 for non-BuildKit builds. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
spikeburton
approved these changes
Oct 12, 2026
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What changed
Dockerfile: the builder stage downloadsorka3/linux/${TARGETARCH}/orka3.tar.gzinstead of alwayslinux/amd64. If the build doesn't setTARGETARCH(a non-BuildKit build), it falls back toamd64.Why
CI publishes
linux/amd64andlinux/arm64images (platforms: linux/amd64,linux/arm64inci.yml). The CLI download was hardcoded tolinux/amd64, so the arm64 image has been shipping an x86-64orka3binary, which can't run on arm64 hosts without emulation.Checks
linux/arm64CLI builds exist for the Dockerfile default (3.1.0) and the CI version (3.2.0). Both return 200, and so do 3.5.2 through 3.6.3.amd64andarm64against the published 3.6.3 artifacts. Each produces the matching binary: x86-64 and aarch64 ELF.Split out of #78, which is on hold pending the OK-6390 CLI rename decision. This fix stands on its own either way. Tracked in DI-753.
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