Add Descheduler chart (#21)

* Add Descheduler chart

* Update Confluence

.gitignore

@@ -1,2 +1 @@
-charts/
 **/test-values.y*ml

README.md

@@ -7,8 +7,7 @@ These charts are provided as-is with no warranties.
 
 ## Usage
 
-[Helm](https://helm.sh) must be installed to use the charts.
-Please refer to Helm's [documentation](https://helm.sh/docs/) to get started.
+[Helm](https://helm.sh) must be installed to use the charts, please refer to Helm's [documentation](https://helm.sh/docs/) to get started.
 
 Once Helm is set up properly, add the repo as follows:
 

charts/confluence-server/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: confluence-server
-version: 2.2.0
+version: 2.2.1
 appVersion: 7.5.0
 description: Atlassian Confluence Server is where you create, organise and discuss work with your team. Capture the knowledge that's too often lost in email inboxes and shared network drives in Confluence - where it's easy to find, use, and update. Give every team, project, or department its own space to create the things they need, whether it's meeting notes, product requirements, file lists, or project plans, you can get more done in Confluence.
 keywords:

charts/confluence-server/templates/pvc.yaml

@@ -10,7 +10,7 @@ metadata:
     app.kubernetes.io/managed-by: {{ .Release.Service }}
   {{- with .Values.persistence.annotations }}
   annotations:
-    {{ . | toYaml | trim | nindent 4 }}
+    {{- . | toYaml | trim | nindent 4 }}
   {{- end }}
 spec:
   accessModes:

charts/descheduler/.helmignore

@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/descheduler/Chart.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+name: descheduler
+version: 1.0.0
+appVersion: 0.9.0
+description: A Helm chart for the Kubernetes Descheduler.
+keywords:
+- kubernetes
+- descheduler
+- kube-scheduler
+home: https://github.com/kubernetes-sigs/descheduler
+icon: https://kubernetes.io/images/favicon.png
+sources:
+- https://github.com/kubernetes-sigs/descheduler
+maintainers:
+- name: stevehipwell
+  email: [email protected]

charts/descheduler/templates/NOTES.txt

@@ -0,0 +1 @@
+Descheduler installed as a cron job.

charts/descheduler/templates/_helpers.tpl

@@ -0,0 +1,56 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "descheduler.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "descheduler.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "descheduler.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "descheduler.labels" -}}
+app.kubernetes.io/name: {{ include "descheduler.name" . }}
+helm.sh/chart: {{ include "descheduler.chart" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "descheduler.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "descheduler.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

charts/descheduler/templates/clusterrole.yaml

@@ -0,0 +1,21 @@
+{{- if .Values.rbac.create -}}
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+rules:
+- apiGroups: [""]
+  resources: ["events"]
+  verbs: ["create", "update"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list", "delete"]
+- apiGroups: [""]
+  resources: ["pods/eviction"]
+  verbs: ["create"]
+{{- end -}}

charts/descheduler/templates/clusterrolebinding.yaml

@@ -0,0 +1,16 @@
+{{- if .Values.rbac.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ template "descheduler.fullname" . }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ template "descheduler.serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}
+{{- end -}}

charts/descheduler/templates/configmap.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+data:
+  policy.yaml: |
+    apiVersion: "descheduler/v1alpha1"
+    kind: "DeschedulerPolicy"
+{{ toYaml .Values.deschedulerPolicy | trim | indent 4 }}

charts/descheduler/templates/cronjob.yaml

@@ -0,0 +1,51 @@
+apiVersion: batch/v1beta1
+kind: CronJob
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+spec:
+  schedule: {{ .Values.schedule | quote }}
+  concurrencyPolicy: "Forbid"
+  jobTemplate:
+    spec:
+      template:
+        metadata:
+          name: {{ template "descheduler.fullname" . }}
+          annotations:
+            checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+            {{- if .Values.podAnnotations }}
+            {{- .Values.podAnnotations | toYaml | nindent 12 }}
+            {{- end }}
+          labels:
+            app.kubernetes.io/name: {{ include "descheduler.name" . }}
+            app.kubernetes.io/instance: {{ .Release.Name }}
+            {{- if .Values.podLabels }}
+            {{- .Values.podLabels | toYaml | nindent 12 }}
+            {{- end }}
+        spec:
+          priorityClassName: system-cluster-critical
+          serviceAccountName: {{ template "descheduler.serviceAccountName" . }}
+          restartPolicy: "Never"
+          containers:
+            - name: {{ .Chart.Name }}
+              image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+              imagePullPolicy: {{ .Values.image.pullPolicy }}
+              command:
+                - "/bin/descheduler"
+              args:
+                - "--policy-config-file"
+                - "/policy-dir/policy.yaml"
+                {{- range $key, $value := .Values.cmdOptions }}
+                - {{ printf "--%s" $key | quote }}
+                {{- if $value }}
+                - {{ $value | quote }}
+                {{- end }}
+                {{- end }}
+              volumeMounts:
+                - mountPath: /policy-dir
+                  name: policy-volume
+          volumes:
+          - name: policy-volume
+            configMap:
+              name: {{ template "descheduler.fullname" . }}

charts/descheduler/templates/serviceaccount.yaml

@@ -0,0 +1,8 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "descheduler.serviceAccountName" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+{{- end -}}

charts/descheduler/values.yaml

@@ -0,0 +1,49 @@
+# Default values for descheduler.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+image:
+  repository: aveshagarwal/descheduler
+  tag: 0.9.0
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""
+
+schedule: "*/2 * * * *"
+
+cmdOptions:
+  v: 3
+  # evict-local-storage-pods:
+  # max-pods-to-evict-per-node: 10
+  # node-selector: "key1=value1,key2=value2"
+
+deschedulerPolicy:
+  strategies:
+    RemoveDuplicates:
+      enabled: true
+    RemovePodsViolatingInterPodAntiAffinity:
+      enabled: true
+    LowNodeUtilization:
+      enabled: true
+      params:
+        nodeResourceUtilizationThresholds:
+          thresholds:
+            cpu: 20
+            memory: 20
+            pods: 20
+          targetThresholds:
+            cpu: 50
+            memory: 50
+            pods: 50
+
+rbac:
+  # Specifies whether RBAC resources should be created
+  create: true
+
+serviceAccount:
+  # Specifies whether a ServiceAccount should be created
+  create: true
+  # The name of the ServiceAccount to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: