The production worker runs host.py inside a container where /app
is mounted read-only, so the default state path /app/host-state.json
fails instantly with Read-only file system. The Docker config must
set state to /work/host-state.json (the task worktree mount, writable)
and sandbox to danger-full-access (host kernel forbids untrusted user
namespaces, so Docker itself is the isolation layer). This file was
previously host-local only, so PR #9's deploy-clean step deleted it
and every Docker task since then has failed in ~1s with the generic
'host execution failed' (stderr was discarded from the task record,
so the breakage was invisible to health checks, which only look at
the worker heartbeat). Committing it makes deploys restore it.
No secrets in this file; the model key stays in the environment.
Live test found the gap: a nonexistent model fails in
thread/start, host.py exits non-zero without JSON, so the
executor result has host_status=None and the worker never
fell back (task failed, no worker_fallback audit). When
host_status is absent, worker now extracts an explicit signal
from stdout/stderr/runner error: 404/429/5xx codes, or
'model not found' style text (counted as 404). Generic
failures with no explicit code still do not fall back, and
401 in stderr still never falls back. Tests: fallback 9 pass,
cloud 333 pass, host 27 pass.
Worker previously only recorded a model_fallback event on a
fallbackable failure and failed the task; ModelRouter.next_after
was never used to actually run the task on another model.
With --fallback-models (default empty = off, old behaviour
unchanged), a fallbackable failure (404/429/5xx/timeout; 401/400
and cancellations never fall back) now re-runs the same task,
same worktree/branch, on the first fallback model via host.py's
top-level --model flag (no host.py signature change). The second
attempt's result is final: actual_model is the fallback model,
fallback_count=1, and a double failure keeps both reasons in
error_text. LocalExecutor/DockerExecutor pass task model through
to host.py; CloudExecutor includes model only when set.
SQLite REAL is 8-byte double, but Postgres REAL is 4-byte
float4 (~7 significant digits). Epoch seconds (10 digits) were
rounded to 128-second steps, so worker liveness ages were off
by up to +-64s and could even go negative (observed live on
the host: last_seen ahead of NOW() by 20s). New tables use
DOUBLE PRECISION; existing Postgres tables are upgraded only
when information_schema actually reports REAL, so the ALTER
does not run on every heartbeat (it would take an ACCESS
EXCLUSIVE lock each time). SQLite path is unchanged (its
REAL is already double precision).
Regression test asserts new tables use DOUBLE PRECISION.
Worker pool: workers table + register/heartbeat (heartbeat is
registration, no 404), GET /workers with alive (120s default),
POST /workers/heartbeat (X-API-Key, missing worker_id 400).
Tasks gain executor (local/docker/cloud, None = any worker);
worker claim filters by executor in pick_next and in the CAS
WHERE clause, CAS semantics unchanged; CloudExecutor _name
now correctly returns cloud, not local.
CloudExecutor: generic HTTP runner interface (endpoint from
explicit arg or CLOUD_RUNNER_ENDPOINT, auth header name only,
token value only from env into the request header, never into
logs/body/errors); no endpoint configured = explicit failure,
never silent downgrade. Vendor adapters (ECS/Cloud Run) are
out of scope, documented as such.
Auto PR: projects.auto_pr (0/1, create-time only, no PATCH
route exists); POST /tasks/{id}/pr (maintainer+ via
approve_merge) only for merged tasks (else 409); skip reasons
in order: auto_pr_disabled, no_worktree, no_remote, no_gh,
gh_not_authenticated — all return 200 with pr_skipped, task
stays merged, no push attempted; push/pr-create failure
returns 502 with step, task stays merged; success writes
pr_url/pr_number and audits pr_created. No default auto-push
from the worker. Remote URLs in errors are scrubbed of
userinfo; gh credentials are managed by gh itself, never
stored by the control plane.
Tests: host 27 pass, cloud 323 pass (8 skipped are
environment-dependent real-Postgres tests).
Overlay-only extract left files added by the newer version behind
after a rollback (2026-10-26: after rolling back ops-batch,
deploy/ new scripts were still present). Before every extract,
delete app-dir contents except work/ (task worktrees), then
extract; backup tarballs also exclude work/, so worktrees are
preserved on both deploy and rollback.
Deploy: deploy.sh builds tarball, backs up current code (keep 3),
deploys, restarts, health-gates 60s (ok/backend=postgres/db_ok),
auto-rolls back on failure; rollback.sh restores latest backup.
Rollback is code-only, DB migrations are additive-only so old
code can still read new columns.
Backup: restore_postgres refuses to restore into the production
DB name unless explicitly allowed (drill never allows it);
restore-drill.sh backs up fresh, restores to a test DB, compares
tasks/projects/users/audit row counts, drops the test DB.
Monitoring: worker writes heartbeat file every loop (atomic
replace, failure only logged); GET /health adds
worker_last_seen_seconds_ago + worker_ok (180s default, env
tunable, still HTTP 200 when worker is stale); monitor.sh
checks server/worker/health/pg_isready/docker-postgres/disk/
app dir as one JSON line, exit non-zero on any fail, plus
systemd timer every 5 minutes. Push alerting to chat still
needs a separate channel decision (SSH key or webhook URL).
Multi-user: verify-multiuser.py creates test users/projects
in memory-key only, checks RBAC via real HTTP API (owner/
maintainer/contributor/viewer, cross-project isolation,
merge 200/403/409, no-key 401), test tasks carry a never-
satisfiable dependency so the production worker never claims
them, cleanup deletes only multiuser-test- rows (audit log
is append-only and keeps test entries by design).
Tests: host 27 pass, cloud 298 pass (8 skipped are
environment-dependent real-Postgres tests).
Projects gain repo_url (validated: https:// or git@ only, no
userinfo/password, no file:// or local paths; old DBs get the
column via idempotent ALTER in both SQLite and Postgres init).
Worker resolves a project's repo_url to a local checkout under
--repos-dir (default ./repos) before dispatch: clone if absent,
verify remote origin matches and fetch if present, never force
reset/clean, never push (push needs write credentials the
control plane does not store). Resolve failure fails the task
with a clear error, never completed. Docker workers need
repos_dir under a same-path extra mount (e.g.
/var/lib/codex-app-server/repos).
Also: driver-missing test is now mocked instead of depending
on the host really having no psycopg driver installed.
Deploy package: Caddyfile template exposing only /webhooks/*
and /oauth/* (tasks/projects/admin stay 403) plus a
webhook-secret generator script that never prints the secret.
Tests: host 27 pass, cloud 286 pass (8 skipped are
environment-dependent real-Postgres tests).
Worker startup cleanup previously deleted every container whose
name started with codex-, including the codex-postgres database
container. On the external host the first worker restart after
the prod-grade deploy deleted codex-postgres, leaving the
control plane unable to connect to Postgres (connection refused
on 127.0.0.1:5432, server auto-restart loop).
Fix: cleanup only deletes codex-<32-hex task id> containers,
which is exactly the name DockerExecutor gives task containers;
infrastructure names like codex-postgres never match and are
never deleted. Regression test covers postgres + non-hex names.
GitHub webhook: delivery-id dedup persisted in webhook_deliveries,
/fix-review creates a queued task with audit (no model run in the
webhook itself), check_run/check_suite parsing without mutating
task state (CI backfill still via pr-checks).
Control plane: Postgres pg_dump backup branch + POST /admin/backup
(maintainer+, password only via PGPASSWORD env), per-key/IP rate
limit (default 120/min, 429), health returns backend + db_ok,
metrics by_status always has all seven status keys.
Worker: per-task timeout (default 1800s, --task-timeout), timeout
is failed not interrupted, limited retries (default 1, backoff,
fallback failures not re-retried), stale codex- container cleanup
on loop/CLI start.
Tests: cloud 271 (267 pass, 4 skipped are pre-existing real-
Postgres tests), host 27 pass.
Add GET /oauth/{provider}/callback (code+state from query, client_id
and redirect_uri recovered from the state record) alongside the
existing POST callback. Callback now fetches real userinfo
(GitHub api.github.com/user, Google openidconnect userinfo) and
issues a usable local API key on success: new users get the
create_user key, existing users rotate (old key dead, audit
oauth_login + api_key_rotated). Key plaintext appears only once
on the success page/response; failures are 400 HTML/JSON without
secrets, and a missing client_secret fails before any network call.
State remains one-time, 10 minutes, provider/redirect_uri matched.
Tests: 10 new OAuth real-login tests pass; host 27, cloud 249
(4 skipped are the pre-existing real-Postgres tests).
Real end-to-end still needs a registered OAuth App and a public
HTTPS callback entry (server still binds localhost only).
Replace the PostgresDatabase skeleton with a real implementation:
psycopg (v3) first, psycopg2 second, lazy load, missing driver
still raises PostgresDriverMissingError with no silent SQLite
fallback. A sqlite3-style adapter (PgConnection/PgCursor/PgRow)
translates ? placeholders to %s outside string literals, maps
UNIQUE/FK violations, lock errors and connection failures to
explicit Postgres error types, and handles INSERT OR REPLACE,
PRAGMA table_info, AUTOINCREMENT and FTS5 refusal. POSTGRES_SCHEMA
covers all business tables with tasks result columns; server
init_db uses it under CLOUD_DB_BACKEND=postgres, SQLite path
unchanged. migrate_sqlite_to_postgres.py copies rows with
ON CONFLICT DO NOTHING and reseeds identity sequences.
Tests: cloud 239 (235 pass, 4 skipped without a real server),
host 27 pass; real-server tests skip unless CLOUD_TEST_PG_DSN
is set.
Extend the verify job with a second step running cloud tests, so
CI covers both suites (host 27 + cloud 223, both passing locally
outside the model sandbox; the 40 socket failures reported inside
the sandbox were sandbox artifacts, not code failures).
Generator (host.py HOST_VERIFY_WORKFLOW) and generated workflow
were updated together; template matches the generated file.
CI failed on the first real PR with FileNotFoundError: 'codex':
the test starts the real app-server, but GitHub runners have no
codex binary on PATH (locally it passes because the VM has one).
Skipping when shutil.which('codex') is None keeps CI green on
runners while the test still runs wherever the binary exists.
CI failed on the first real PR because five test commits relied on
a global user.name/user.email, which GitHub runners do not set.
Pass -c user.name=Test -c user.email=test@example.com on every
test commit, matching the helper that already does this for the
other tests. host.py worktree commits inherit the repo config
set by _init_git_repo, so they needed no change.
host-state-real.json.bak* kept appearing as untracked files in
git status (the base names were ignored, the .bak rotations were
not). Ignore the rotation files so a future git add does not
accidentally commit local state backups.
- DockerExecutor: extra mounts (host.py work/state, repo, codex-home
at same paths), worker --docker-extra-mounts, container user
configurable; Dockerfile copies codex-resources beside the codex
binary and puts bwrap on PATH (previous /usr/local/lib layout
made codex report bubblewrap unavailable inside the container).
- Real Docker task on external host: triple added in ~18s, merged
inside a container, main repo now add+mul2+triple, --rm cleanup.
Honest boundary: this host/kernel forbids unprivileged user
namespaces, so bwrap fails on host and in containers; production
mode here is Docker isolation + inner danger-full-access, not
double sandboxing.
- Cloud merge status: POST /tasks/{id}/merge syncs status only
(merge itself stays with host.py merge); completed -> merged,
maintainer+ (approve_merge), other states and repeat calls 409,
audit merge_task. Tests: cloud 223, host 27, all passing.
host