# JOURNAL — sub-phase conc (Builder, append-only)

## 2026-06-10 — bootstrap

Read concurrency-restructure-full-plan.md (SSOT) + plan.md §6.1/§7/§9. Oriented on the code:

- `runner/harness/lifecycle.py` — recipe flock (l.46), registry (l.65–97), deploy_app
  registration (l.283), teardown unregister (l.723), three-way janitor (l.726).
- `runner/run_recipe_ci.py` — `acquire_recipe_lock` call site (l.843), `fetch_recipe` (l.140,
  rm-rf + reclone of the shared tree), janitor call sites (l.600 quick, l.932 cold).
- `.drone.yml` — recipe-ci step runs `cc-ci-run runner/run_recipe_ci.py` bare (P1 wraps it),
  `concurrency.limit: 2` (P4 removes).
- Greps for P3 fallout: `~/.abra/recipes` referenced in abra.py (recipe_checkout,
  has_lightweight_version_tags, recipe_head_commit, recipe_versions), generic.py:28,
  lifecycle.prepull_images, run_recipe_ci (fetch_recipe, snapshot_recipe_tests, comment),
  warm_reconcile.py:202 (runs OUTSIDE per-run context — keeps default), and
  tests/ghost+discourse install_steps.sh (`${HOME}/.abra/recipes/...` — these run INSIDE a
  run and copy compose.ccci.yml into the deploy tree, so they must resolve the per-run dir).
- `~/.abra/servers/...` paths are unaffected by design (servers/ is symlinked to the canonical
  /root/.abra/servers, so both resolutions land on the same file).

Working setup: state files on main in this clone; code on branch `restructure/concurrency`
via a git worktree at ../cc-ci-conc; test runs on the cc-ci host via /root/builder-clone
(`cc-ci-run -m pytest ...`, `nix develop .#lint`).