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Fix arm64 sandbox image build: TARGETARCH default shadows BuildKit auto-injection #88

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Merged
MiniMax-AI-Dev merged 1 commit into from
Jul 11, 2026
Merged

Fix arm64 sandbox image build: TARGETARCH default shadows BuildKit auto-injection #88

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10 changes: 9 additions & 1 deletion infra/sandbox/Dockerfile
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Expand Up @@ -78,7 +78,15 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} GOFLAGS=-trimpath \
# Stage 2: runtime — the actual sandbox image.
###############################################################################
FROM ${BASE_IMAGE}
ARG TARGETARCH=amd64
# Bare, no default: BuildKit auto-populates this per target platform for
# every multi-platform build graph node. A hardcoded default here (we
# used to have =amd64, reasoning "e2b is amd64-only anyway") SHADOWS
# that auto-injection instead of just being a fallback — it silently
# forced every platform, including arm64 build graph nodes, to resolve
# TARGETARCH=amd64, downloading x86_64 CLI binaries onto an aarch64
# rootfs (fails at exec time: "No such file or directory", the classic
# symptom of a missing ELF interpreter for the wrong architecture).
ARG TARGETARCH

# --- Base tools ---
# curl/ca-certificates for downloads, jq for JSON, git for repo ops,
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