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41 Commits

Author SHA1 Message Date
Jan Chaloupka
6e953b2ff3 Separate migration of strategy configuration from the constructing and running the plugins (#999) 
* 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>
 2022-11-14 08:48:41 -08:00
Furkan
99868a41de run: gofumpt -w -extra . 
Enable gofumpt in golangci

Signed-off-by: Furkan <furkan.turkal@trendyol.com>
 2022-11-07 09:11:27 +03:00
Lucas Severo Alves
f47c2c4407 add new preevectionfilter plugin with args 2022-09-12 16:56:21 +02:00
Lucas Severo Alves
a2dd86ac3b Migrate RemovePodsViolatingInterPodAntiAffinity into a plugin 2022-08-16 12:29:25 +02:00
Amir Alavi
abf5752260 PodLifeTime: add States field and deprecate PodStatusPhases 2022-06-25 15:13:18 -04:00
Kubernetes Prow Robot
cf59d08193 Merge pull request #751 from HelmutLety/redo_#473 
feat: Add DeviationThreshold Paramter for LowNodeUtilization, (Previous attempt - #473 )
 2022-03-28 03:53:24 -07:00
HelmutLety
2ea65e69dc feat(LowNodeUtilization): useDeviationThresholds, redo of #473 
[751]: normalize Percentage in nodeutilization and clean the tests
 2022-03-28 12:35:01 +02:00
Jacob Henner
ac3362149b Add RemovePodsViolatingNodeTaints taint exclusion 
Add taint exclusion to RemovePodsViolatingNodeTaints. This permits node
taints to be ignored by allowing users to specify ignored taint keys or
ignored taint key=value pairs.
 2022-03-27 13:48:40 -04:00
Jan Chaloupka
285523f0d9 RemovePodsViolatingNodeTaints: optionally include PreferNoSchedule taint 2022-03-14 16:46:03 +01:00
babygoat
1529180d70 feat: support eviction of failed bare pods 
This patch adds the policy(evictFailedBarePods) to allow the failed
pods without ownerReferences to be evicted. For backward compatibility,
disable the policy by default. Address #644.
 2022-01-06 01:07:41 +08:00
Kubernetes Prow Robot
82201d0e48 Add maxNoOfPodsToEvictPerNamespace policy 2021-12-03 10:58:37 +08:00
Jan Chaloupka
73a7adf572 Drop deprecated flags 2021-11-29 17:12:59 +01:00
Amir Alavi
0e0e688fe8 Introduce RemoveFailedPods strategy 2021-08-30 14:17:52 -04:00
RyanDevlin
41d46d0d3b Working nodeFit feature 2021-05-24 09:03:38 -04:00
RyanDevlin
b5d7219391 Completed evictSystemCriticalPods feature 2021-03-29 23:13:05 -04:00
lixiang
2517268b1f API: Add a new parameter labelSelector to StrategyParameters. 2021-02-26 15:49:00 +08:00
Kubernetes Prow Robot
241f1325c9 Merge pull request #481 from damemi/ignore-pvc-pods 
Add option to ignore pods with PVCs from eviction
 2021-01-26 22:41:40 -08:00
Mike Dame
c1a63a557a Add option to ignore pods with PVCs from eviction 2021-01-26 08:47:54 -05:00
lixiang
8ba9cb1df7 Add a parameter to include soft topology spread constraints 2021-01-21 11:33:16 +08:00
lixiang
1303fe6eb9 PodLifeTime: allow custom podStatusPhases 2020-09-11 09:56:45 +08:00
Jan Chaloupka
89541f7545 Deprecate node-selector, max-pods-to-evict-per-node and evict-local-storage-pods flags and promote then to policy v1alpha1 fields 2020-08-21 13:27:40 +02:00
Jan Chaloupka
a7c51ffae0 Promote Namespaces field to a pointer 2020-08-13 18:38:46 +02:00
lixiang
ae38aa63af StrategyParameters: Add new param ThresholdPriority and ThresholdPriorityClassName 2020-08-07 13:53:29 +08:00
Jan Chaloupka
11f1333af7 ListPodsOnANode: allow to include/exclude namespaces 
Info: field selector is still not properly mocked so it's not possible to unit test it
 2020-07-21 15:08:05 +02:00
Jan Chaloupka
5a81a0661b Make DeschedulerStrategy.Params a pointer 
To avoid empty params fields when serializing:
  RemoveDuplicates:
    enabled: true
    params: {}
  RemovePodsHavingTooManyRestarts:
    enabled: true
    params:
      podsHavingTooManyRestarts: {}
  RemovePodsViolatingInterPodAntiAffinity:
    enabled: true
    params: {}
  RemovePodsViolatingNodeAffinity:
    enabled: true
    params:
      nodeAffinityType:
      - requiredDuringSchedulingIgnoredDuringExecution
  RemovePodsViolatingNodeTaints:
    enabled: true
    params: {}
 2020-05-27 10:31:31 +02:00
Mike Dame
c6ff87dbd6 Consider pod image in duplicates strategy 
This increases the specificity of the RemoveDuplicates strategy by
removing pods which not only have the same owner, but who also
must have the same list of container images. This also adds a
parameter, `ExcludeOwnerKinds` to the RemoveDuplicates strategy
which accepts a list of Kinds. If a pod has any of these Kinds as
an owner, that pod is not considered for eviction.
 2020-05-15 09:37:09 -04:00
Sean Malloy
423ee35846 Add New PodLifeTime Strategy 
The new PodLifeTime descheduler strategy can be used to evict pods that
were created more than the configured number of seconds ago.

In the below example pods created more than 24 hours ago will be evicted.
````
apiVersion: "descheduler/v1alpha1"
kind: "DeschedulerPolicy"
strategies:
  "PodLifeTime":
     enabled: true
     params:
        maxPodLifeTimeSeconds: 86400
````
 2020-05-07 23:10:36 -05:00
Mike Dame
fa335c782f Switch PodsHavingTooManyRestarts params to pointer 2020-05-06 13:29:05 -04:00
Jan Chaloupka
991eddb691 Turn StrategyParameters.NodeResourceUtilizationThresholds field into a pointer 
The field is intended to be omitempty when not set. Without a pointer the strategy
serialized into json string looks like:

```json
strategies:
  LowNodeUtilization:
    enabled: true
    params:
      nodeResourceUtilizationThresholds:
        numberOfNodes: 1
        targetThresholds:
          cpu: 50
          memory: 50
          pods: 20
        thresholds:
          cpu: 50
          memory: 50
          pods: 20
  RemoveDuplicates:
    enabled: true
    params:
      nodeResourceUtilizationThresholds: {}
  RemovePodsViolatingInterPodAntiAffinity:
    enabled: true
    params:
      nodeResourceUtilizationThresholds: {}
  RemovePodsViolatingNodeAffinity:
    enabled: true
    params:
      nodeAffinityType:
      - requiredDuringSchedulingIgnoredDuringExecution
      nodeResourceUtilizationThresholds: {}
  RemovePodsViolatingNodeTaints:
    enabled: true
    params:
      nodeResourceUtilizationThresholds: {}
```

It's preferred to have the following json string instead:
```
strategies:
  LowNodeUtilization:
    enabled: true
    params:
      nodeResourceUtilizationThresholds:
        numberOfNodes: 1
        targetThresholds:
          cpu: 50
          memory: 50
          pods: 20
        thresholds:
          cpu: 50
          memory: 50
          pods: 20
  RemoveDuplicates:
    enabled: true
  RemovePodsViolatingInterPodAntiAffinity:
    enabled: true
  RemovePodsViolatingNodeAffinity:
    enabled: true
    params:
      nodeAffinityType:
      - requiredDuringSchedulingIgnoredDuringExecution
  RemovePodsViolatingNodeTaints:
    enabled: true
```
 2020-04-28 15:20:30 +02:00
Mike Dame
e7c42794a0 Add RemovePodsHavingTooManyRestarts strategy 2020-04-24 10:48:28 -04:00
Shubham Minglani
40bb490f4c add RemovePodsViolatingNodeAffinity strategy 
This commit adds requiredDuringSchedulingIgnoredDuringExecution
for RemovePodsViolatingNodeAffinity strategy.

Also adds unit tests and documentation.
 2018-02-19 16:20:59 +05:30
Avesh Agarwal
44752e5e83 Update code and hack dir for kube 1.9 rebase. 2018-01-09 12:41:01 -05:00
Avesh Agarwal
d634701250 Descheduler related modifications. 2017-09-15 14:13:27 -04:00
Avesh Agarwal
a6b75a2fd5 Fix compilation issue by importing time. 2017-08-06 16:02:13 -04:00
Avesh Agarwal
718efe69e1 Move ReschedulingInterval to rescheduler's configuration out of 
rescheduler's policy.
 2017-08-06 15:58:30 -04:00
Avesh Agarwal
6178d99993 Modify percentage type to float64 2017-08-04 14:05:14 -04:00
Avesh Agarwal
b2bfb0e24f Add number of nodes thershold to node utilization strategies. 2017-08-04 14:01:55 -04:00
Avesh Agarwal
79985395d5 Update rescheduler's implementation. 2017-08-04 11:55:20 -04:00
Avesh Agarwal
02382b61f7 Update rescheduler strategies types. 2017-08-04 09:59:40 -04:00
Avesh Agarwal
4be75d86f6 Implement resource utilization threhsolds types. 2017-08-03 19:39:52 -04:00
Avesh Agarwal
d721b649b7 Add rescheduler policy type. 2017-07-29 11:40:32 -04:00