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6 Commits

Author SHA1 Message Date
shankar0123 60ae92b0e8 wincertstore: pre-deploy snapshot + on-import-failure rollback
Closes Bundle 7 of the 2026-05-02 deployment-target coverage audit
(see cowork/deployment-target-audit-2026-05-02/RESULTS.md). Pre-fix,
DeployCertificate at wincertstore.go:162-215 ran a single PowerShell
script that imported the PFX, optionally set FriendlyName, and
optionally removed expired same-Subject certs. Import-PfxCertificate
is atomic at the cert-store level, but the wider sequence (import →
friendly name → remove expired) is not. Failure in any post-import
step left the new cert in the store with no clean recovery path.
docs/deployment-atomicity.md L93 promised "Get-ChildItem snapshot
for rollback"; the code didn't deliver.

This commit:

1. Pre-deploy snapshot. New PowerShell script (tagged
   `# CERTCTL_SNAPSHOT`) runs Get-ChildItem over the target store,
   captures every thumbprint, and for each cert with the same
   Subject as the new one calls Export-PfxCertificate to a tempdir
   using a transient snapshotExportPassword (32-byte random,
   distinct from the import PFX password). Output parsed into a
   snapshotState{Entries: []{Thumbprint, PfxPath}, AllThumbprints,
   TempDir, ExportPassword}. The new cert's Subject is parsed from
   request.CertPEM via certutil.ParseCertificatePEM before any
   cert-store mutation; PEM-parse failure aborts the deploy
   cleanly.

2. On-import-failure rollback. When the import-script Execute
   returns error, run a rollback script (tagged
   `# CERTCTL_ROLLBACK`) that:
   - Test-Path on the new cert path; Remove-Item if present.
   - Import-PfxCertificate -FilePath <pfxPath> for each snapshot
     entry (restores prior state).
   - Remove-Item -Recurse on the snapshot tempdir.

3. Post-rollback verification. Re-read Get-ChildItem (tagged
   `# CERTCTL_VERIFY`); assert every original thumbprint is back.
   On mismatch, append a warning to the DeploymentResult message
   (rollback ran but final state is suspect — operator inspection
   recommended). Skipped when AllThumbprints is empty (first-time
   deploy).

4. Success-path tempdir cleanup. New script tagged
   `# CERTCTL_CLEANUP` runs after a successful import to remove
   the snapshot tempdir on a best-effort basis. Failure here is
   non-fatal (debug log only).

5. Helper extraction. rollbackImport(ctx, snapshot, newThumbprint)
   + verifyRollback(ctx, snapshot) + cleanupSnapshot(ctx, snapshot)
   + parseSnapshotOutput are private methods/functions on
   Connector for clean test seams. Each script emits a unique
   `# CERTCTL_*` PowerShell comment tag so test mocks can match
   scripts deterministically — the snapshot/rollback/verify/cleanup
   scripts all reference Cert:\<store> paths, so the comment tags
   are the only deterministic substring under randomized map
   iteration.

DeploymentResult shape on failure:
- import OK, rollback OK   → Success=false, "PowerShell import
                              failed; rolled back" (clean
                              recoverable failure).
- import FAIL, rollback OK → same.
- rollback FAIL            → operator-actionable wrapped error
                              containing both errors; metadata
                              flags manual_action_required=true
                              and surfaces import_error /
                              rollback_error verbatim.

Tests added to wincertstore_test.go:
- TestWinCertStore_ImportFails_RemovesNewCert_RestoresOldFromSnapshot
  — happy rollback path with one same-Subject cert in the
  snapshot. Asserts rollback script contains Remove-Item for the
  new thumbprint AND Import-PfxCertificate referencing the
  snapshotted PFX path.
- TestWinCertStore_ImportFails_NoExistingSameSubject_RemovesNewCertOnly
  — snapshot has THUMB: lines but no SNAPSHOT: entries; rollback
  removes the new cert but does NOT call Import-PfxCertificate.
- TestWinCertStore_FriendlyNameFails_NewCertRemoved_OldCertsRestored
  — variant where the import script's failure originates from
  Set-ItemProperty FriendlyName; same rollback path. Asserts
  metadata.import_error preserves the FriendlyName-related
  PowerShell output for operator visibility.
- TestWinCertStore_ImportFails_RollbackAlsoFails_OperatorActionable
  — wrapped-error escalation. Asserts the error mentions both
  "PowerShell import failed" and "rollback also failed", and
  metadata flags manual_action_required=true.

Three existing tests (Success, ImportFailed, WithFriendlyName,
WithRemoveExpired) updated to match the new contract: success
path runs 3 PowerShell scripts (snapshot + import + cleanup),
import-failure path runs 4 (snapshot + import + rollback + verify),
and the import script lives at mock.scripts[1] not [0].

PowerShell injection note: the new cert's Subject DN is embedded
in the snapshot script as a single-quoted literal. Subject DNs can
contain apostrophes (e.g. CN=O'Reilly), so escapePowerShellSingleQuoted
doubles them per the PowerShell single-quoted-literal escape rule.
The export password and thumbprints come from
certutil.GenerateRandomPassword (alphanumeric only) and the cert's
SHA-1 thumbprint hex (alphanumeric); no escaping needed for those.

docs/deployment-atomicity.md L93 unchanged from today's text —
Bundle 1 doc-realignment hasn't shipped, so the "Get-ChildItem
snapshot for rollback" line was never softened. Post-Bundle-7 the
claim is honest (was aspirational pre-fix).

Verified locally (sandbox lacks staticcheck install due to disk
pressure; CI runs the full lint gate):
- gofmt -l ./internal/connector/target/wincertstore/  clean
- go vet ./internal/connector/target/wincertstore/  clean
- go build ./cmd/agent/...  clean
- go test -race -count=1 ./internal/connector/target/wincertstore/
  green

Audit reference: cowork/deployment-target-audit-2026-05-02/RESULTS.md
Bundle 7.
2026-05-02 18:13:40 +00:00
shankar0123 7cb453a336 chore(fmt): repo-wide gofmt -w sweep — close drift surfaced by ci-pipeline-cleanup Phase 4
Mechanical reformat. The new 'gofmt drift' CI step (added in
ci-pipeline-cleanup Phase 4, commit 0f205a8) surfaced 111 files
with accumulated gofmt drift across cmd/, internal/, and deploy/test/.

Each file's diff is gofmt-standard: whitespace adjustments, intra-
group import sorting (alphabetical by import path within blank-line-
separated groups), and struct-tag column alignment. No semantic
changes — verified via 'git diff --ignore-all-space' which shows only
the line-position deltas from import reordering.

The gate stays in place after this commit. Going forward it catches
gofmt drift at PR time.
2026-04-30 22:33:57 +00:00
shankar0123 9f41b58b2f feat(ssh,wincertstore,javakeystore,k8ssecret): explicit ValidateOnly + leverage existing connectors
Phase 9 of the deploy-hardening I master bundle. The four
non-file-server connectors get real ValidateOnly probes that
operators use to preview a deploy without touching the live cert.
Existing DeployCertificate paths already have explicit backup +
rollback semantics (SCP backup / WinCertStore Get-ChildItem
snapshot / keytool snapshot / K8s atomic API).

SSH (validate_only.go):
- Probes via SSHClient.Connect. Confirms agent reachability +
  credentials. Cheap (no remote command runs); released cleanly
  via defer Close.
- A true SCP dry-run requires a no-commit upload (SCP doesn't
  have one). V2 ships the auth probe as the load-bearing check.
- 3 new tests in validate_only_test.go.

WinCertStore (validate_only.go):
- Probes via PowerShell `Get-ChildItem -Path Cert:\<loc>\<store>`
  using the configured StoreLocation + StoreName (defaults
  LocalMachine\My).
- Confirms agent has Windows + the IIS module + the right ACLs.
- 4 new tests including default-store-path verification.

JavaKeystore (validate_only.go):
- Probes via `keytool -list -keystore <path> -storepass <pass>`
  using the configured KeystorePath / KeystorePassword and
  KeytoolPath (default "keytool").
- Confirms keystore exists, password is correct, JRE is on PATH.
- 4 new tests covering succeeds / fails / no-path-sentinel /
  nil-executor-sentinel.

K8s Secret (validate_only.go):
- Probes via K8sClient.GetSecret on the configured Namespace +
  SecretName. Returns nil on success or "not found" (the
  CreateSecret path on Deploy will handle it). Other errors
  (forbidden/unreachable) surface as wrapped.
- 4 new tests covering succeeds / RBAC-error wrapped /
  no-config-sentinel / nil-client-sentinel.

Smoke test connectorsAtPhase3 list shrunk from 7 to 3 entries
(ssh + wincertstore + javakeystore + k8ssecret removed). Only
caddy (file-mode) + envoy + traefik remain — those three
genuinely have no validate-with-target command available.

Race detector clean across all 13 connectors. golangci-lint
v2.11.4 clean.

Phase 10 next: DeployCounters + Prometheus exposer mirroring the
production-hardening-II OCSP counter pattern.
2026-04-30 15:22:17 +00:00
shankar0123 49f1a60762 feat(target): ValidateOnly dry-run method on Connector interface (default returns ErrValidateOnlyNotSupported)
Phase 3 of the deploy-hardening I master bundle. Extends the
target.Connector interface with the dry-run method that operators
will use to preview a deploy before committing — but ships only the
default-stub for all 13 connectors. Phases 4-9 replace each stub
with the real validate-with-the-target implementation.

interface.go:
- Add ErrValidateOnlyNotSupported sentinel (frozen decision 0.6 —
  connectors that cannot dry-run, like K8s, return this rather than
  nil so operator triage can errors.Is for "not supported" vs
  "validated successfully").
- Add ValidateOnly(ctx, request DeploymentRequest) error to
  Connector interface.

13 new validate_only.go files (one per connector at
internal/connector/target/<name>/validate_only.go):
- apache, caddy, envoy, f5, haproxy, iis, javakeystore, k8ssecret,
  nginx, postfix, ssh, traefik, wincertstore.
- Each file is identical except for the package declaration: a
  one-method default stub returning target.ErrValidateOnlyNotSupported.
- Per-connector files (rather than a single embed-method approach)
  let Phases 4-9 replace each connector's stub independently
  without churning a shared base.

Tests:
- internal/connector/target/validate_only_test.go pins the sentinel
  contract (errors.Is identity, Error() string, %w wrap propagation).
- internal/connector/target/validate_only_smoke_test.go (external
  test package) constructs a zero-value &<pkg>.Connector{} for each
  of the 13 connectors and asserts ValidateOnly returns
  ErrValidateOnlyNotSupported. The test's
  connectorsAtPhase3 list is the load-bearing CI guard:
  - A 14th connector added without wiring ValidateOnly fails the
    `len(connectorsAtPhase3) != 13` invariant.
  - A connector whose real ValidateOnly lands (Phase 4 NGINX, Phase
    5 Apache, etc.) MUST be removed from this list or the smoke test
    fails (real impl no longer returns the sentinel). That removal
    IS the bookkeeping that the operator-visible bit + behavior
    change are wired together end-to-end.

Compile + go vet + golangci-lint v2.11.4 + go test all 0 issues.

Phase 4 next: NGINX canonical real-impl — replace the stub with
nginx -t -c <temp>; same time replace the existing os.WriteFile
flow in DeployCertificate with deploy.Apply(...).
2026-04-30 14:40:51 +00:00
shankar0123 25f33b830f fix: resolve golangci-lint issues in wincertstore connector
Remove unnecessary fmt.Sprintf wrapping a string literal (staticcheck S1039),
remove unused tempFileForPFX function, and clean up unused os import.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-05 19:16:34 -04:00
shankar0123 7d6ef44e21 feat(M46): Windows Certificate Store + Java Keystore target connectors, shared certutil package
Extract shared certutil helpers (CreatePFX, ParsePrivateKey, ComputeThumbprint,
GenerateRandomPassword, ParseCertificatePEM) from IIS connector for reuse.
Add WinCertStore connector (PowerShell Import-PfxCertificate, dual local/WinRM
mode, configurable store/location, expired cert cleanup) and JavaKeystore
connector (PEM→PKCS#12→keytool pipeline, JKS/PKCS12 support, shell injection
prevention, path traversal protection). 53 new tests, all passing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-05 19:14:32 -04:00