* add ignoreNonPDBPods option
* take2
* add test
* poddisruptionbudgets are now used by defaultevictor plugin
* add poddisruptionbudgets to rbac
* review comments
* don't use GetPodPodDisruptionBudgets
* review comment, don't hide error
* skip eviction when pod creation time is below minPodAge threshold setting
In the default initialization phase of the descheduler, add a new
constraint to not evict pods that creation time is below minPodAge
threshold.
Added value:
- Avoid crazy pod movement when the autoscaler scales up and down.
- Avoid evicting pods when they are warming up.
- Decreases the overall cost of eviction as no pod will be evicted
before doing significant amount of work.
- Guard against scheduling. Descheduling loops in situations where
the descheduler has a different node fit logic from scheduler,
like not considering topology spread constraints.
* Use *time.Duration instead of uint for MinPodAge type
* Remove '(in minutes)' from default evictor configuration table
* make fmt
* Add explicit name for Duration field
* Use Duration.String()
Pods that don't pass the nodeFit condition currently log an
unsuppressable error message to logs. This changes the log level to info
as it's a normal operating condition.
Signed-off-by: Antoine Deschênes <antoine.deschenes@linux.com>
* add v1alpha2 registry based conversion
* test defaults, set our 1st explicit default
* fix typos and dates
* move pluginregistry to its own dir
* remove unused v1alpha2.Namespace type
* move migration code folders, remove switch
* validate internalPolicy a single time
* remove structured logs
* simplify return
* check for nil methods
* properly check before adding default evictor
* add TODO comment
* bump copyright year
* use plugin registry and prepare for conersion
* Register plugins explicitly to a registry
* check interface impl instead of struc var
* setup plugins at top level
* treat plugin type combinations
* pass registry as arg of V1alpha1ToInternal
* move registry yet another level up
* check interface type separately
* Remove log level from Errors
Every error printed via Errors is expected to be important and always
printable.
* Invoke first Deschedule and then Balance extension points (breaking change)
* Separate plugin arg conversion from pluginsMap
* Seperate profile population from plugin execution
* Convert strategy params into profiles outside the main descheduling loop
Strategy params are static and do not change in time.
* Bump the internal DeschedulerPolicy to v1alpha2
Drop conversion from v1alpha1 to internal
* add tests to v1alpha1 to internal conversion
* add tests to strategyParamsToPluginArgs params wiring
* in v1alpha1 evictableNamespaces are still Namespaces
* add test passing in all params
Co-authored-by: Lucas Severo Alves <lseveroa@redhat.com>
