Fixes#1252
Supports a generic background job system, with two background jobs,
CreateReplicaJob and DeleteReplicaJob.
- CreateReplicaJob runs on new crawls, uploads, profiles and updates the
`replicas` array with the info about the replica after the job succeeds.
- DeleteReplicaJob deletes the replica.
- Both jobs are created from the new `replica_job.yaml` template. The
CreateReplicaJob sets secrets for primary storage + replica storage,
while DeleteReplicaJob only needs the replica storage.
- The job is processed in the operator when the job is finalized
(deleted), which should happen immediately when the job is done, either
because it succeeds or because the backoffLimit is reached (currently
set to 3).
- /jobs/ api lists all jobs using a paginated response, including filtering and sorting
- /jobs/<job id> returns details for a particular job
- tests: nightly tests updated to check create + delete replica jobs for crawls as well as uploads, job api endpoints
- tests: also fixes to timeouts in nightly tests to avoid crawls finishing too quickly.
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Co-authored-by: Tessa Walsh <tessa@bitarchivist.net>
- Ability for pod to be Completed, unlike in Statefulset - eg. if 3 pods are running and first one finishes, all 3 must be running until all 3 are done. With this setup, the first finished pod can remain in Completed state.
- Fixed shutdown order - crawler pods now correctly shutdown first before redis pods, by switching to background deletion.
- Pod priority decreases with scale: 1st instance of a new crawl can preempt 3rd or 2nd instance of another crawl
- Create priority classes upto 'max_crawl_scale, configured in values.yaml
- Improved scale change reconciliation: if increasing scale, immediately scale up. If decreasing scale,
graceful stop scaled-down instance to complete via redis 'stopone' key, wait until they exit with Completed state
before adjust status.scale / removing scaled down pods. Ensures unaccepted interrupts don't cause scaled down data to be deleted.
- Redis pod remains inactive until crawler is first active, or after no crawl pods are active for 60 seconds
- Configurable Redis storage with 'redis_storage' value, set to 3Gi by default
- CrawlJob deletion starts as soon as post-finish crawl operations are run
- Post-crawl operations get their own redis instance, since one during response is being cleaned up in finalizer
- Finalizer ignores request with incorrect state (returns 400 if reported as not finished while crawl is finished)
- Current resource usage added to status
- Profile browser: also manage single pod directly without statefulset for consistency.
- Restart pods via restartTime value: if spec.restartTime != status.restartTime, clear out pods and update status.restartTime (using OnDelete policy to avoid recreate loops in edge cases).
- Update to latest metacontroller (v4.11.0)
- Add --restartOnError flag for crawler (for browsertrix-crawler 0.11.0)
- Failed crawl logging: dd 'fail_crawl()' to be used for failing a crawl, which prints logs for default container (if enabled) as well as pod status
- tests: check other finished states to avoid stuck in infinite loop if crawl fails
- tests: disable disk utilization check, which adds unpredictability to crawl testing!
fixes#1147
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Co-authored-by: Tessa Walsh <tessa@bitarchivist.net>
