1a24c2894e
An idle builder keeps the Docker Desktop VM ballooned: each per-worktree
compose project carries its own ${KICAD_DOCKER_MEM:-32G} cap, build.sh left
the container running afterwards ("interactive use"), and two forgotten
builders plus the VM's page-cache/high-water behavior read as ~56 GB of host
RAM during a ~20 GB build.
stop_builder() now runs from the EXIT trap on every path (success, failure,
Ctrl-C — both the sequential and the pipeline-mode trap). The container is
pure scaffolding — all caches live in the named volumes and `up -d` restarts
it in seconds — so stopping costs nothing. KICAD_KEEP_CONTAINER=1 restores
the old keep-running behavior for interactive debugging; docker/shell.sh is
unaffected (it does its own `up -d`).
Verified live: the full `all --build-deps` run on main left zero containers
running at exit.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
43 lines
1.9 KiB
YAML
43 lines
1.9 KiB
YAML
services:
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kicad-wasm-builder:
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build:
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context: ..
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dockerfile: docker/Dockerfile
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args:
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# Single source of truth: scripts/common/versions.sh, exported into the env by the scripts
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# that drive compose (docker/build.sh, docker/shell.sh). No default -> the Dockerfile fails
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# fast if it's unset, so the image can't be built against the wrong toolchain.
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EMSCRIPTEN_VERSION: ${EMSCRIPTEN_VERSION:?source scripts/common/versions.sh before docker compose}
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# Container name is auto-generated with project prefix (set in build.sh)
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# Resource limits. Defaults are sized for a dev Mac (Docker Desktop VM).
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# CI overrides via env: the 32-core Hetzner runner sets KICAD_DOCKER_CPUS=$(nproc)
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# and KICAD_DOCKER_MEM=110G — with the 10-CPU default, run 27226030304 compiled
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# everything on 10 of 32 cores while passing -j 32 (3x oversubscribed).
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deploy:
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resources:
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limits:
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cpus: '${KICAD_DOCKER_CPUS:-10}'
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memory: ${KICAD_DOCKER_MEM:-32G}
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volumes:
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# Host source mounted read-only at staging location
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# (rsync'd to /workspace on container start to fix macOS timestamp issues)
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- ..:/workspace-host:ro
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# Synced source in Docker volume (consistent timestamps)
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- workspace-src:/workspace
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# Named volume for build cache (faster than bind mount on macOS)
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- kicad-build-cache:/workspace/build-wasm
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# Output directory for easy access to final WASM files
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- ../output:/workspace/output
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# Keep the container alive so build.sh can `exec` its stages into it.
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# build.sh STOPS it when the build exits (idle builders keep the Docker
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# Desktop VM ballooned — 32G cap per per-worktree compose project); set
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# KICAD_KEEP_CONTAINER=1 to keep it running afterwards for interactive use.
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stdin_open: true
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tty: true
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volumes:
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kicad-build-cache:
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workspace-src:
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