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fix(docker): declare ARG TARGETARCH so buildx cross-builds work

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TARGETARCH was referenced but never declared, so every platform in a
multi-arch buildx run received an amd64 binary. The arm64 image
crashed on Raspberry Pi nodes with an exec format error.
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lukaszraczylo
2026-08-29 13:54:07 +01:00
parent 14b61fa962
commit 08bb0f985a
1 changed files with 4 additions and 0 deletions
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@@ -1,6 +1,10 @@
# Build stage # Build stage
FROM golang:1.26-alpine AS builder FROM golang:1.26-alpine AS builder
# Populated by buildx per platform; without this declaration the
# GOARCH=${TARGETARCH:-amd64} below silently builds amd64 for every platform.
ARG TARGETARCH
# Install ca-certificates for HTTPS support # Install ca-certificates for HTTPS support
RUN apk add --no-cache ca-certificates RUN apk add --no-cache ca-certificates