Phase 11 of the deploy-hardening I master bundle. Four end-to-end
integration tests under //go:build integration that exercise the
internal/deploy package's load-bearing invariants from outside the
package — proving they hold not just in unit tests but in the
full Apply pipeline.
deploy/test/deploy_e2e_test.go:
- TestDeploy_Atomicity_FileIsAlwaysOldOrNew — pin POSIX-rename
atomicity. Reader hammers the destination during 30 alternating
writes; if any read returns intermediate state (torn write), the
test fails. Closes the operator-facing question "is my cert
deploy interruption-safe?".
- TestDeploy_PostVerify_WrongCertTriggersRollback — simulate the
post-deploy verify failure path. The PostCommit returns an error
on the first call; the deploy package's automatic rollback fires
+ restores the previous bytes + re-calls PostCommit (which
succeeds the second time). Final on-disk state matches the OLD
bytes; the rollback wire works end-to-end.
- TestDeploy_Idempotency_SecondDeployIsNoOp — pin the SHA-256
short-circuit. Defends against agent-restart retry storms that
would otherwise hammer targets with no-op reloads. Second call
with identical bytes calls neither PreCommit nor PostCommit.
- TestDeploy_Concurrent_SamePathsSerialize — N=8 simultaneous
Apply calls to the same destination. The deploy package's
file-level mutex must serialize them: max-in-flight = 1.
Run via:
INTEGRATION=1 go test -tags integration -race \
./deploy/test/... -run Deploy
Tests live in package `integration` to match the existing
crl_ocsp_e2e_test.go convention; the //go:build integration tag
gates them out of normal `go test ./...` runs.
All 4 tests green. Race detector clean.
Phase 12 next: documentation (docs/deployment-atomicity.md +
README + connectors.md + disaster-recovery.md updates).
shankar0123