Merge pull request #1610 from Poor12/add-desheduler

add karmada_descheduler for helm

charts/README.md

@@ -33,6 +33,21 @@ $ kubectl get secret -n karmada-system karmada-kubeconfig -o jsonpath={.data.kub
 
 > **Tip**: List all releases using `helm list`
 
+For better scheduling effect, you can choose to install the `karmada-descheduler` component in the karmada controller plane. Link: [here](../docs/descheduler.md). The following is the specific installation guide.
+
+Edited values.yaml for karmada-descheduler
+```YAML
+installMode: "component"
+components: [
+  "descheduler"
+]
+```
+Execute command (switch to the `root` directory of the repo, and sets the `current-context` in a kubeconfig file)
+```console
+$ kubectl config use-context host
+$ helm install karmada-descheduler -n karmada-system ./charts
+```
+
 ## Uninstalling the Chart
 To uninstall/delete the `karmada` helm release in namespace `karmada-system`:
 
@@ -79,7 +94,7 @@ $ kubectl config use-context member
 $ helm install karmada-agent -n karmada-system --create-namespace ./charts
 ```
 ### 2. Install component
-Edited values.yaml
+Edited values.yaml for karmada-scheduler-estimator
 ```YAML
 installMode: "component"
 components: [
@@ -108,6 +123,7 @@ Execute command (switch to the `root` directory of the repo, and sets the `curre
 $ kubectl config use-context host
 $ helm install karmada-scheduler-estimator -n karmada-system ./charts
 ```
+
 ## Configuration
 | Name                                     | Description                                                                                                                                                                                                                                   | Value                                                                                                                                                      |
 |------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|

charts/templates/_helpers.tpl

@@ -118,6 +118,33 @@ app: {{$name}}-scheduler
 {{- end -}}
 
 
+{{- define "karmada.descheduler.labels" -}}
+{{ $name :=  include "karmada.name" . }}
+{{- if .Values.descheduler.labels -}}
+{{- range $key, $value := .Values.descheduler.labels}}
+{{ $key }}: {{ $value }}
+{{- end -}}
+{{- else -}}
+app: {{$name}}
+{{- end -}}
+{{- end -}}
+
+{{- define "karmada.descheduler.podLabels" -}}
+{{ $name :=  include "karmada.name" .}}
+{{- if .Values.descheduler.podLabels }}
+{{- range $key, $value := .Values.descheduler.podLabels}}
+{{ $key }}: {{ $value }}
+{{- end}}
+{{- end }}
+{{- end -}}
+
+{{- define "karmada.descheduler.kubeconfig.volume" -}}
+- name: kubeconfig-secret
+  secret:
+    secretName: karmada-kubeconfig
+{{- end -}}
+
+
 {{- define "karmada.webhook.labels" -}}
 {{ $name :=  include "karmada.name" .}}
 {{- if .Values.webhook.labels }}

charts/templates/karmada_descheduler.yaml

@@ -0,0 +1,60 @@
+{{- $name := include "karmada.name" . -}}
+{{- if and (eq .Values.installMode "component") (has "descheduler" .Values.components) }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ $name }}
+  namespace: {{ include "karmada.namespace" . }}
+  labels:
+  {{- include "karmada.descheduler.labels" . | nindent 4}}
+spec:
+  replicas: {{ .Values.descheduler.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "karmada.descheduler.labels" . | nindent 6}}
+  {{- with .Values.descheduler.strategy }}
+  strategy:
+  {{- toYaml . | nindent 8 }}
+  {{- end }}
+  template:
+    metadata:
+      {{- with .Values.descheduler.podAnnotations}}
+      annotations:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "karmada.descheduler.labels" . | nindent 8}}
+        {{- include "karmada.descheduler.podLabels" . | nindent 8}}
+    spec:
+      {{- with .Values.descheduler.imagePullSecrets }}
+      imagePullSecrets:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.descheduler.nodeSelector }}
+      nodeSelector:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.descheduler.affinity }}
+      affinity:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.descheduler.tolerations}}
+      tolerations:
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ $name }}
+          image: {{ .Values.descheduler.image.repository}}:{{ .Values.descheduler.image.tag | default "latest" }}
+          imagePullPolicy: {{ .Values.descheduler.image.pullPolicy }}
+          command:
+            - /bin/karmada-descheduler
+            - --kubeconfig=/etc/kubeconfig
+            - --bind-address=0.0.0.0
+            - --v=4
+          volumeMounts:
+          {{- include "karmada.kubeconfig.volumeMount" . | nindent 12 }}
+          resources:
+          {{- toYaml .Values.descheduler.resources | nindent 12 }}
+      volumes:
+      {{- include "karmada.descheduler.kubeconfig.volume" . | nindent 8}}
+{{- end }}

charts/values.yaml

@@ -15,6 +15,7 @@ clusterDomain: "cluster.local"
 components: []
   # components: [
   #   "schedulerEstimator"
+  #   "descheduler"
   # ]
 
 ## pre-install job config
@@ -547,3 +548,47 @@ schedulerEstimator:
     rollingUpdate:
       maxUnavailable: 0
       maxSurge: 50%
+
+## descheduler config
+descheduler:
+  ## @param descheduler.labels
+  labels:
+    app: karmada-descheduler
+  ## @param descheduler.replicaCount target replicas
+  replicaCount: 2
+  ## @param descheduler.podAnnotations
+  podAnnotations: { }
+  ## @param descheduler.podLabels
+  podLabels: { }
+  ## @param descheduler.imagePullSecrets
+  imagePullSecrets: [ ]
+  image:
+    ## @param descheduler.image.repository image of the descheduler
+    repository: swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-descheduler
+    ## @param descheduler.image.pullPolicy pull policy of image
+    pullPolicy: IfNotPresent
+    ## @param descheduler.image.tag overrides the image tag whose default is the latest
+    tag: latest
+  ## @param descheduler.resources
+  resources: { }
+    # If you do want to specify resources, uncomment the following
+    # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+    # limits:
+    #   cpu: 100m
+    #   memory: 128Mi
+    # requests:
+    #   cpu: 100m
+    #   memory: 128Mi
+  ## @param descheduler.nodeSelector
+  nodeSelector: { }
+  ## @param descheduler.affinity
+  affinity: { }
+  ## @param descheduler.tolerations
+  tolerations: [ ]
+    # - key: node-role.kubernetes.io/master
+    #   operator: Exists
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 0
+      maxSurge: 50%