Supply-chain hardening for the CI pipeline. 23 workflow files
modified, 59 mutable-tag refs replaced with commit SHAs.
The risk
Every `uses:` reference in .github/workflows/*.yml was pinned to a
mutable tag (e.g., `actions/checkout@v4`). A maintainer of an
action — or a compromised maintainer account — can repoint that
tag to malicious code, and our pipelines silently pull it on the
next run. The tj-actions/changed-files compromise of March 2025 is
the canonical example: maintainer credential leak, attacker
repointed several `@v<N>` tags to a payload that exfiltrated
repository secrets. Repos that pinned to SHAs were unaffected.
The fix
Replace each `@v<N>` with `@<commit-sha> # v<N>`. The trailing
comment preserves human readability ("ah, this is v4"); the SHA
makes the reference immutable.
Actions covered (10 distinct):
actions/{checkout,setup-go,setup-python,setup-node,upload-artifact,github-script}
docker/{login-action,setup-buildx-action,build-push-action}
github/codeql-action/{init,autobuild,analyze}
dorny/paths-filter
imjasonh/setup-crane
pnpm/action-setup (already pinned in molecule-app, listed here for completeness)
Excluded:
Molecule-AI/molecule-ci/.github/workflows/disable-auto-merge-on-push.yml@main
— internal org reusable workflow; we control its repo, threat model
is different from third-party actions. Conventional to pin to @main
rather than SHA for internal reusables.
The maintenance cost
SHA pinning means upstream fixes require manual SHA bumps. Without
automation, pinned SHAs go stale. So this PR also enables Dependabot
across four ecosystems:
- github-actions (workflows)
- gomod (workspace-server)
- npm (canvas)
- pip (workspace runtime requirements)
Weekly cadence — the supply-chain attack window is "minutes between
repoint and pull"; weekly auto-bumps don't help with zero-days
regardless. The point is to pull in non-zero-day fixes without
operator effort.
Aligns with user-stated principle: "long-term, robust, fully-
automated, eliminate human error."
Companion PR: Molecule-AI/molecule-controlplane#308 (same pattern,
smaller surface).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Code-quality + efficiency review of PR #2079:
- Hoist all_slugs = prod_slugs | staging_slugs out of decide() into the
caller (was rebuilt on every record — 1k records × ~50-slug union per
call). decide() signature now (r, all_slugs, ec2_names).
- Compile regexes at module scope (_WS_RE, _E2E_RE, _TENANT_RE) +
hoist platform-core literal set (_PLATFORM_CORE_NAMES). Same change
mirrored in the bash heredoc.
- Drop decorative # Rule N: comments (numbering was out of order, 3
before 2 — actively confusing).
- Move the "edits must mirror" reminder OUTSIDE the CANONICAL DECIDE
block in the .sh file, eliminating the .replace() comment-skip hack
in TestParityWithBashScript.
- Drop per-line .strip() in _slice_canonical (would mask a real
indentation bug; both blocks already at column 0).
- subTest() in TestPlatformCore loops so a single failure no longer
short-circuits the rest of the items.
- merge_group + concurrency on test-ops-scripts.yml (parity with
ci.yml gate behaviour).
- Fix don't apostrophe in inline comment that closed the python
heredoc's single-quote and broke bash -n.
All 25 tests still pass. bash -n clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Closes#2027.
The CF orphan sweep deletes DNS records — a misclassification could nuke
a live workspace's tunnel. The decision function had MAX_DELETE_PCT
percentage gating but no automated test of category → action mapping.
Approach: extract the decide() function to scripts/ops/sweep_cf_decide.py
as a verbatim copy bracketed by `# CANONICAL DECIDE BEGIN/END` markers.
The shell script keeps its inline heredoc (so the operational path is
untouched) but bracketed by the same markers. A parity test
(TestParityWithBashScript) reads both files and asserts the bracketed
blocks match line-for-line — drift fails CI loudly.
Coverage (25 tests, 1 file, stdlib unittest only):
- Rule 1 platform-core: apex, _vercel, _domainkey, www/api/app/doc/send/status/staging-api
- Rule 3 ws-*: live (matches EC2 prefix) on prod + staging; orphan on prod + staging
- Rule 4 e2e-*: live + orphan on staging; orphan on prod
- Rule 2 generic tenant: live prod + staging; unknown subdomain kept-for-safety
- Rule 5 fallthrough: external domain + unrelated apex
- Rule priority: api.moleculesai.app stays platform-core (not tenant); _vercel stays verification
- Safety gate: under/at/over default 50% threshold; zero-total no-divide; custom threshold
- Empty live-sets: documents that decide() alone classifies as orphan, gate is the defense
CI: new .github/workflows/test-ops-scripts.yml runs `python -m unittest
discover` against scripts/ops/ on every PR/push that touches the
directory. Lightweight — no requirements file, stdlib only.
Local: `cd scripts/ops && python -m unittest test_sweep_cf_decide -v` →
25 tests, all OK.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
