myasnikovdaniil 7585b0c42c test(e2e): replace fixed timeouts with event-driven backstops (#2554)
## What this PR does

Replaces fragile `sleep N` / `timeout N until …; do sleep …; done`
patterns in `hack/*.bats` and `hack/*.sh` with `kubectl wait
--for=condition=…` plus a small existence backstop:

```sh
until kubectl get <resource> >/dev/null 2>&1; do sleep 2; done
kubectl wait <resource> --for=condition=Ready --timeout=…
```

### Why the existence backstop matters

`kubectl wait` against a not-yet-created resource sits silently for the
full timeout and then fails with `error: timed out waiting for the
condition` — useless for diagnosis. With the backstop, the test fails
fast with a clear "resource never appeared" error.

Existence backstop added at 14 sites in this sweep across:
- `redis`, `kafka`, `openbao`, `harbor`, `mongodb`, `qdrant`,
`clickhouse`, `mariadb`, `postgres`, `bucket`, `external-dns`,
`foundationdb` bats
- `hack/e2e-install-cozystack.bats`
- `hack/e2e-apps/run-kubernetes.sh`
- `hack/e2e-test-openapi.bats` (port-readiness wait replacing fixed
`sleep 5` after `kubectl proxy`)

The vm-disk hunk in `hack/e2e-apps/vminstance.bats` is included here;
the vm-instance hunks land separately via the `daniil/split-vminstance`
PR.

### Genuine sleeps annotated

The 3 remaining genuine sleeps (LINSTOR node membership propagation,
MetalLB end-to-end HTTP path, HR-count emission heuristic) are annotated
with `# TODO` + rationale so a future reader knows they are intentional.

Same green-path semantics; failures now surface in seconds instead of
after a 5-minute timeout. Surfaced from #2500.

### Release note

```
NONE
```


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Tests**
* Improved e2e stability by replacing fixed sleeps with timeout-based
polling across many integration tests, waiting for operator-created
resources to exist before readiness checks to reduce race conditions and
flakes.

* **Documentation**
* Added clarifying notes for LoadBalancer retry behavior and improved
local proxy readiness checks in e2e scripts.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-05-06 18:13:30 +05:00
2025-10-08 09:43:34 +05:00
2025-04-01 18:48:14 +02:00
2024-02-08 12:04:32 +01:00
2026-04-16 14:30:51 +05:00
2026-03-17 02:57:52 +05:00

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Cozystack

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