When the host runs out of memory the Actions runner loses its heartbeat. GitHub then reports only 'lost communication': no step completes, so every if-always upload step is skipped and the rescue diagnostics, the inventory artifact and the Playwright results are all lost. Job 92710765494 died exactly that way.
The 30s poll in _run already did this for disk. It now also samples MemAvailable, MemTotal and the memory PSI stall, prints one line per poll, and aborts below 6 percent of RAM. The abort returns 75, which propagates to the EXIT trap in 00_one.sh, so the existing post-mortem apparatus runs normally instead of dying with the runner.
The sample line is the main point: artifacts provably do not survive a lost runner, streamed log lines largely do, and the numbers discriminate memory thrash from a kernel wedge on the next occurrence. The floor is relative to MemTotal so a dev box does not inherit a runner-sized threshold; measured margin across four real drills is 9-15x. PSI is sampled but not used as a trigger, since no drill has ever measured it.
mem_total_mb and mem_stall_pct join the existing host probes in utils/env/runtime.py and share the /proc/meminfo parser. The probes read only /proc, never the host-side NFS mount, which would block in D-state under the very condition they exist to catch.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Replace 8 bash env modules with a single Python generator
(cli.meta.env) that materialises env/static.env + runtime context
into a gitignored .env. Each variable lives in its own handler
under utils/env/handlers/; defaults carry inline one-line `# ...`
comments.
Rename to the INFINITO_* schema:
- workflow inputs: APPS, SERVICES_DISABLED, CMD, DEBUG, WHITELIST,
BUNDLES, FULL_CYCLE, VARIANT, RUN_FLAGS, LIMIT_HOST, PARALLEL
- inventory: INVENTORY_DIR / INVENTORY_FILE / HOST_VARS_FILE,
PW_FILE -> INVENTORY_PASSWORD_FILE
- venv: VENV_BASE / VENV_FALLBACK / VENV_NAME
- new SPOT defaults: COMPILE_SILENCE, CONTAINER_NO_CA,
WAIT_HEALTH_TIMEOUT_S, PACKAGE_CACHE_FRONTEND_INIT_IMAGE,
promoted IMAGE_TAG from GHA-only to general passthrough
compose.yml hardening:
- inline \${VAR:-default} removed; strict \${VAR:?...} everywhere
- new integration lint blocks regressions
Tooling:
- scripts/install/all.sh owns the stamp-file install logic
(Makefile target delegates)
- scripts/meta/env/load.sh is the single shell entry point;
8 bash modules deleted
- new shell lint: no INFINITO_* defaults outside env/static.env
Tests:
- 93 new unit tests for utils/env/{builder,parser,runtime,writer}
- restructure tests/lint into repository/ (file-content rules) vs
filesystem/{shell,python,env}/ (filesystem-shape rules)
- drift + smoke integration tests against the generator
Docs:
- variables.md is now a pointer; per-variable docs live next to
the key in env/static.env / env/ci.env
- compose.yml.md drops the Default column
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5