villebro opened a new pull request, #57:
URL: https://github.com/apache/superset-kubernetes-operator/pull/57
## Summary
This PR hardens the Superset lifecycle pipeline after the single-CRD
refactor by moving lifecycle task execution to deterministic parent-owned
Kubernetes Jobs and tightening drain, maintenance, checksum, and status
semantics.
The goal is to make clone/migrate/rotate/init execution predictable, prevent
duplicate task runs, avoid unnecessary maintenance/drain cycles, and make
`kubectl get/describe` accurately reflect what the operator is doing.
## Details
- Run lifecycle tasks as deterministic Jobs instead of generated bare Pods.
- Prevent duplicate migrate/init execution by reconciling against the actual
Job template image instead of stale parent status.
- Include the target Superset lifecycle image in clone checksums so image
changes can retrigger clone and cascade downstream.
- Drain only when a task that will actually run requires drain.
- Skip maintenance page startup on initial installs with no existing
web-server workload.
- Keep maintenance scoped to web traffic: during maintenance, only
web-server readiness is suppressed; workers report observed readiness.
- Add `Lifecycle` as a `kubectl get supersets` print column.
- Keep top-level `PHASE` high-level (`Initializing`, `Upgrading`, `Running`,
etc.) and use `LIFECYCLE` for step-level state (`Draining`, `Migrating`,
`Restoring`, etc.).
- Add `Restoring` lifecycle phase for the post-task component rollout /
maintenance switchback window.
- Update status aggregation, API docs, CRDs, architecture docs, and
lifecycle guide.
- Add regression coverage for duplicate Jobs, checksum behavior, drain
decisions, maintenance gating, and lifecycle/status reporting.
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