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(...).
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>
shankar0123