Use pre-built base image in build-local.sh to speed up cold builds #51

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opened 2026-03-11 21:36:07 +00:00 by mik-tf · 0 comments

mik-tf commented

2026-03-11 21:36:07 +00:00

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Problem

build-local.sh uses raw rust:1.93-bookworm as the build image. On cold builds (CI, fresh workspace), the WASM step spends ~5-6 min installing dioxus-cli, binaryen, and wasm target every time.

Solution

Use Dockerfile.base (already exists) as a pre-built base image with all tooling baked in:

Rust 1.93 + wasm32-unknown-unknown target
dioxus-cli (pre-compiled)
binaryen (apt)
ONNX Runtime libs

Update build-local.sh to use hero_zero:base instead of rust:1.93-bookworm.
Add make base target to build and push the base image.

Impact

Cold builds: ~5-6 min faster
Warm builds: ~30s faster (skip tool detection)
CI: ~5-6 min faster per run
Zero risk: inline installs still work as fallback if base is stale

Related: lhumina_code/home#17

## Problem `build-local.sh` uses raw `rust:1.93-bookworm` as the build image. On cold builds (CI, fresh workspace), the WASM step spends ~5-6 min installing dioxus-cli, binaryen, and wasm target every time. ## Solution Use `Dockerfile.base` (already exists) as a pre-built base image with all tooling baked in: - Rust 1.93 + wasm32-unknown-unknown target - dioxus-cli (pre-compiled) - binaryen (apt) - ONNX Runtime libs Update `build-local.sh` to use `hero_zero:base` instead of `rust:1.93-bookworm`. Add `make base` target to build and push the base image. ## Impact - Cold builds: ~5-6 min faster - Warm builds: ~30s faster (skip tool detection) - CI: ~5-6 min faster per run - Zero risk: inline installs still work as fallback if base is stale Related: https://forge.ourworld.tf/lhumina_code/home/issues/17