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fix(nix): Use fallback pattern for nix profile sourcing #19

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fix(nix): Use fallback pattern for nix profile sourcing #19

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b384181
fix(nix): Use fallback pattern for nix profile sourcing in NIX_DOCKER…
devin-ai-integration[bot] Dec 24, 2025
b5cee71
fix(nix): Add PATH fallback to guarantee nix availability
devin-ai-integration[bot] Dec 24, 2025
43071e6
fix(nix): Add self-healing nix install and broader PATH fallback
devin-ai-integration[bot] Dec 24, 2025
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11 changes: 10 additions & 1 deletion flytekit/image_spec/default_builder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -189,11 +189,20 @@
WORKDIR /build

# Build with cache mount - reuses the same cache across builds
# Add all possible nix bin locations to PATH for compatibility with different nix installations
# If nix is still not found (cache eviction), reinstall it in this step
RUN --mount=type=bind,source=.,target=/build/ \
--mount=type=cache,target=/nix,id=nix-determinate \
--mount=type=cache,target=/root/.cache/nix,id=nix-git-cache \
--mount=type=cache,target=/var/lib/containers/cache,id=container-cache \
. /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh && \
export PATH="/nix/var/nix/profiles/default/bin:/root/.nix-profile/bin:/nix/var/nix/profiles/per-user/root/profile/bin:$$PATH" && \
for f in /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh /nix/var/nix/profiles/default/etc/profile.d/nix.sh /etc/profile.d/nix.sh /root/.nix-profile/etc/profile.d/nix.sh; do [ -f "$$f" ] && . "$$f" && break; done; \
if ! command -v nix >/dev/null 2>&1; then \
echo "Nix not found in cache, reinstalling..." && \
curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install linux --determinate --extra-conf "sandbox = true" --extra-conf "max-substitution-jobs = 256" --extra-conf "http-connections = 256" --extra-conf "download-buffer-size = 1073741824" --init none --no-confirm && \
export PATH="/nix/var/nix/profiles/default/bin:/root/.nix-profile/bin:/nix/var/nix/profiles/per-user/root/profile/bin:$$PATH"; \
fi && \
command -v nix >/dev/null 2>&1 || { echo "ERROR: nix command not found after install"; ls -la /nix/var/nix/profiles/ /root/.nix-profile/ 2>/dev/null || true; exit 1; } && \
nix run .#docker.copyTo -- docker://$IMAGE_NAME --dest-creds "AWS:$ECR_TOKEN" \
--image-parallel-copies 32 \
--dest-creds "AWS:$ECR_TOKEN"
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