v0.15.0

Summary

v0.15.0 focuses on runtime reliability and defensive behavior in the controller and DB layers, plus a substantial front-end performance and UX improvement. This release tightens queue/worker semantics, centralizes and sanitizes pod duration/exit heuristics, hardens DB reads/writes, and adds lazy-loading + skeletons and many unit tests to the UI.

Changes

Queue & memory retention

• New context-aware API: PopWithContext / PopBatchWithContext implemented and
  Pop/PopBatch now delegate to them — queue pops respect cancellation/timeouts.
• MemoryQueue: no longer retains popped elements (nil-out slots and periodic compaction
  using a head index) to avoid unbounded memory retention.
• PebbleQueue:
  • Opens/validates the DB during construction and surfaces errors early.
  • Ensures head/tail counters are consistent on init (tail adjusted if behind head).
  • Notifies waiters reliably after pushes and records the last committed head
    position.

Workers, pod duration & exit handling

• Centralized heuristics: computePodDurationAndExit consolidates logic for exit code,
  best-effort duration (seconds) and finished timestamp so metrics, DB writes and webhooks
  are consistent.
• Defensive duration handling:
  • Avoids dereferencing nil Terminated states.
  • Estimates durations only when reasonable; prevents writing absurd durations.
  • For pods failing before container start, default exit code -1 is used; config
    errors use -2 in the config error path.
• writeStatusToDB now consumes computePodDurationAndExit and only writes sane durations.
• Improved log-collection flow: readiness checks and fetch bookkeeping prevent duplicate
  log uploads.
• Safer pod deletion paths (background propagation, proper finalizer handling in config
  error flows).

Database & storage hardening

• Postgres and SQLite managers:
  • Queries adjusted to include tasks even when there are no Task_Runs (LEFT JOIN
    fixes) so task lists are complete.
  • Task pod duration sanitization on read: absurd values (e.g., >10 years or negative)
    are treated as unknown and not exposed.
  • SQLite: new read-only connection helper with optional PRAGMA tuning and safer
    placeholder handling for parameterized IN-list queries.
  • GetIsSecrets and parameter-related lookups validate parameter existence and fail
    early with clear errors.

UI / Frontend

• Loadable component: unified loading/error state wrapper (accepts optional skeleton
  placeholder).
• Skeleton placeholders added across dashboard, Dags, DagRuns, Tasks, ManageUsers for
  better perceived performance.
• Lazy-loading and chunking:
  • Route components and large vendor modules (e.g. dagViz) are lazy-loaded.
  • Manual chunking + code-splitting dramatically reduced main bundle size (main bundle
    reported reduced significantly in this change).
• Numerous UI bugfixes: pagination, DagForm validations, ManageUsers cleanup, Log viewer
  dead-SVG removal, plus multiple component fixes for reactivity and caching.
• Large addition of unit tests for Loadable, skeletons, dag components, task box,
  pagination, main/dags pages and log highlighting.