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feat(linstor): add linstor-scheduler package

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Add linstor-scheduler-extender for optimal pod placement on nodes
with LINSTOR storage.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
This commit is contained in:
Andrei Kvapil 2026-01-07 14:36:19 +01:00
parent 0fb02e6470
commit 47b5a5757f
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GPG key ID: 931CF7FEACEAF765
24 changed files with 1170 additions and 0 deletions
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6
packages/core/platform/bundles/distro-full.yaml
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@ -357,6 +357,12 @@ releases:
privileged: true
dependsOn: [piraeus-operator,cilium,cert-manager,snapshot-controller]
- name: linstor-scheduler
releaseName: linstor-scheduler
chart: cozy-linstor-scheduler
namespace: cozy-linstor
dependsOn: [linstor,cert-manager]
- name: nfs-driver
releaseName: nfs-driver
chart: cozy-nfs-driver

6
packages/core/platform/bundles/paas-full.yaml
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@ -430,6 +430,12 @@ releases:
privileged: true
dependsOn: [piraeus-operator,cilium,kubeovn,cert-manager,snapshot-controller]
- name: linstor-scheduler
releaseName: linstor-scheduler
chart: cozy-linstor-scheduler
namespace: cozy-linstor
dependsOn: [linstor,cert-manager]
- name: nfs-driver
releaseName: nfs-driver
chart: cozy-nfs-driver

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packages/core/platform/sources/linstor-scheduler.yaml Normal file
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---
apiVersion: cozystack.io/v1alpha1
kind: PackageSource
metadata:
name: cozystack.linstor-scheduler
spec:
sourceRef:
kind: OCIRepository
name: cozystack-packages
namespace: cozy-system
path: /
variants:
- name: default
dependsOn:
- cozystack.linstor
- cozystack.cert-manager
components:
- name: linstor-scheduler
path: system/linstor-scheduler
install:
namespace: cozy-linstor
releaseName: linstor-scheduler

1
packages/system/linstor-scheduler/.helmignore Normal file
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examples

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packages/system/linstor-scheduler/Chart.yaml Normal file
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apiVersion: v2
name: cozy-linstor-scheduler
version: 0.0.0 # Placeholder, the actual version will be automatically set during the build process

10
packages/system/linstor-scheduler/Makefile Normal file
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export NAME=linstor-scheduler
export NAMESPACE=cozy-linstor
include ../../../scripts/package.mk
update:
rm -rf charts
helm repo add piraeus-charts https://piraeus.io/helm-charts/
helm repo update piraeus-charts
helm pull piraeus-charts/linstor-scheduler --untar --untardir charts

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packages/system/linstor-scheduler/charts/linstor-scheduler/Chart.yaml Normal file
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apiVersion: v2
appVersion: v0.3.2
deprecated: true
description: 'Deploys a new kubernetes scheduler, configured to take advantage of
storage system information. If a Pod is using a LINSTOR volume, the scheduler will
prefer nodes with local data instead of accessing the data via a DRBD diskless. '
home: https://github.com/piraeusdatastore/helm-charts
icon: https://raw.githubusercontent.com/piraeusdatastore/piraeus/master/artwork/sandbox-artwork/icon/color.svg
keywords:
- storage
- scheduler
maintainers:
- name: The Piraeus Maintainers
url: https://github.com/piraeusdatastore/
name: linstor-scheduler
sources:
- https://github.com/piraeusdatastore/linstor-scheduler-extender
type: application
version: 0.2.3

201
packages/system/linstor-scheduler/charts/linstor-scheduler/LICENSE Normal file
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@ -0,0 +1,201 @@
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packages/system/linstor-scheduler/charts/linstor-scheduler/README.md Normal file
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# linstor-scheduler
Deploys a new Kubernetes scheduler, extended by
the [linstor-scheduler-extender](https://github.com/piraeusdatastore/linstor-scheduler-extender).
> [!IMPORTANT]
> The LINSTOR Scheduler is no longer maintained. Prefer using `volumeBindingMode: WaitForFirstConsumer` on your
> StorageClasses.
The schedule is volume placement aware. That means that it prefers placing Pods on the same nodes as any Persistent
Volume they might use. This works for any setup using LINSTOR, i.e. Piraeus Datastore or LINBIT SDS.
## Installation
The scheduler is meant to be installed in the same namespace as LINSTOR itself, otherwise additional steps may be
required.
If installed along side Piraeus Operator, the LINSTOR endpoint is determined automatically. Otherwise, you need
to set `linstor.endpoint` and `linstor.clientSecret` values as appropriate.
The following command will install the scheduler for a typical Piraeus Data-Store configuration with TLS enabled:
```
helm repo add piraeus-charts https://piraeus.io/helm-charts/
helm install linstor-scheduler piraeus-charts/linstor-scheduler --set linstorEndpoint=https://piraeus-op-cs.piraeus.svc:3371 --set linstorClientSecret=piraeus-client-secret
```
## Usage
To use the scheduler, you need to configure it on your Pods (or Pod templates):
```yaml
apiVersion: v1
kind: Pod
metadata:
name: some-pod
spec:
schedulerName: linstor-scheduler
...
```
## Configuration
The following options are available:
| Option | Usage | Default |
|-----------------------------------------------|--------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|
| `replicaCount` | Number of replicas to deploy. | `1` |
| `linstor.endpoint` | URL of the LINSTOR Controller API. | `""` |
| `linstor.clientSecret` | TLS secret to use to authenticate with the LINSTOR API | `""` |
| `extender.image.repository` | Repository to pull the linstor-scheduler-extender image from. | `quay.io/piraeusdatastore/linstor-scheduler-extender` |
| `extender.image.pullPolicy` | Pull policy to use. Possible values: `IfNotPresent`, `Always`, `Never` | `IfNotPresent` |
| `extender.image.tag` | Override the tag to pull. If not given, defaults to charts `AppVersion`. | `""` |
| `extender.resources` | Resources to request and limit on the container. | `{}` |
| `extender.securityContext` | Configure container security context. Defaults to dropping all capabilties and running as user 1000. | `{capabilities: {drop: [ALL]}, readOnlyRootFilesystem: true, runAsNonRoot: true, runAsUser: 1000}` |
| `scheduler.image.repository` | Repository to pull the kubernetes scheduler image from. | `registry.k8s.io/kube-scheduler` |
| `scheduler.image.pullPolicy` | Pull policy to use. Possible values: `IfNotPresent`, `Always`, `Never` | `IfNotPresent` |
| `scheduler.image.tag` | Override the tag to pull. If not given, defaults to kubernetes version. | `""` |
| `scheduler.image.compatibleKubernetesRelease` | Compatible kubernetes version for this scheduler, used to generate configuration in the right version. | `""` |
| `scheduler.resources` | Resources to request and limit on the container. | `{}` |
| `scheduler.securityContext` | Configure container security context. Defaults to dropping all capabilties and running as user 1000. | `{capabilities: {drop: [ALL]}, readOnlyRootFilesystem: true, runAsNonRoot: true, runAsUser: 1000}` |
| `imagePullSecrets` | Image pull secrets to add to the deployment. | `[]` |
| `podAnnotations` | Annotations to add to every pod in the deployment. | `{}` |
| `podSecurityContext` | Security context to set on the webhook pod. | `{}` |
| `nodeSelector` | Node selector to add to each webhook pod. | `{}` |
| `tolerations` | Tolerations to add to each webhook pod. | `[]` |
| `affinity` | Affinity to set on each webhook pod. | `{}` |
| `rbac.create` | Create the necessary roles and bindings for the snapshot controller. | `true` |
| `serviceAccount.create` | Create the service account resource | `true` |
| `serviceAccount.name` | Sets the name of the service account. If left empty, will use the release name as default | `""` |
| `podDisruptionBudget.enabled` | Enable creation of a pod disruption budget to protect the availability of the scheduler | `true` |
| `autoscaling.enabled` | Enable creation of a horizontal pod autoscaler to ensure availability in case of high usage` | `"false` |

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Scheduler {{ include "linstor-scheduler.fullname" . }} deployed!
Used LINSTOR URL: {{ include "linstor-scheduler.linstorEndpoint" .}}
Please run `helm test {{ .Release.Name }}` to ensure it's properly working.
Specify the scheduler on your pods to start smart scheduling based on your Persistent Volumes:
---
spec:
schedulerName: {{ include "linstor-scheduler.fullname" . }}
---

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packages/system/linstor-scheduler/charts/linstor-scheduler/templates/_helpers.tpl Normal file
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{{/*
Expand the name of the chart.
*/}}
{{- define "linstor-scheduler.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 "linstor-scheduler.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 "linstor-scheduler.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
{{- end }}
{{/*
Common labels
*/}}
{{- define "linstor-scheduler.labels" -}}
helm.sh/chart: {{ include "linstor-scheduler.chart" . }}
{{ include "linstor-scheduler.selectorLabels" . }}
{{- if .Chart.AppVersion }}
app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
{{- end }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
{{- end }}
{{/*
Selector labels
*/}}
{{- define "linstor-scheduler.selectorLabels" -}}
app.kubernetes.io/name: {{ include "linstor-scheduler.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- end }}
{{/*
Create the name of the service account to use
*/}}
{{- define "linstor-scheduler.serviceAccountName" -}}
{{- if .Values.serviceAccount.create }}
{{- default (include "linstor-scheduler.fullname" .) .Values.serviceAccount.name }}
{{- else }}
{{- default "default" .Values.serviceAccount.name }}
{{- end }}
{{- end }}
{{/*
Get the kubernetes version we should assume for creating scheduler configs
*/}}
{{- define "linstor-scheduler.kubeVersion" }}
{{- .Values.scheduler.image.compatibleKubernetesRelease | default .Capabilities.KubeVersion.Version }}
{{- end }}
{{/*
Find the linstor client secret containing TLS certificates
*/}}
{{- define "linstor-scheduler.linstorClientSecretName" -}}
{{- if .Values.linstor.clientSecret }}
{{- .Values.linstor.clientSecret }}
{{- else if .Capabilities.APIVersions.Has "piraeus.linbit.com/v1/LinstorController" }}
{{- $crs := (lookup "piraeus.linbit.com/v1" "LinstorController" .Release.Namespace "").items }}
{{- if $crs }}
{{- if eq (len $crs) 1 }}
{{- $item := index $crs 0 }}
{{- $item.spec.linstorHttpsClientSecret }}
{{- end }}
{{- end }}
{{- else if .Capabilities.APIVersions.Has "linstor.linbit.com/v1/LinstorController" }}
{{- $crs := (lookup "linstor.linbit.com/v1" "LinstorController" .Release.Namespace "").items }}
{{- if $crs }}
{{- if eq (len $crs) 1 }}
{{- $item := index $crs 0 }}
{{- $item.spec.linstorHttpsClientSecret }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{/*
Find the linstor URL by operator resources
*/}}
{{- define "linstor-scheduler.linstorEndpointFromCRD" -}}
{{- if .Capabilities.APIVersions.Has "piraeus.linbit.com/v1/LinstorController" }}
{{- $crs := (lookup "piraeus.linbit.com/v1" "LinstorController" .Release.Namespace "").items }}
{{- if $crs }}
{{- if eq (len $crs) 1 }}
{{- $item := index $crs 0 }}
{{- if include "linstor-scheduler.linstorClientSecretName" . }}
{{- printf "https://%s.%s.svc:3371" $item.metadata.name $item.metadata.namespace }}
{{- else }}
{{- printf "http://%s.%s.svc:3370" $item.metadata.name $item.metadata.namespace }}
{{- end }}
{{- end }}
{{- end }}
{{- else if .Capabilities.APIVersions.Has "linstor.linbit.com/v1/LinstorController" }}
{{- $crs := (lookup "linstor.linbit.com/v1" "LinstorController" .Release.Namespace "").items }}
{{- if $crs }}
{{- if eq (len $crs) 1 }}
{{- $item := index $crs 0 }}
{{- if include "linstor-scheduler.linstorClientSecretName" . }}
{{- printf "https://%s.%s.svc:3371" $item.metadata.name $item.metadata.namespace }}
{{- else }}
{{- printf "http://%s.%s.svc:3370" $item.metadata.name $item.metadata.namespace }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
{{/*
Find the linstor URL either by override or cluster resources
*/}}
{{- define "linstor-scheduler.linstorEndpoint" -}}
{{- if .Values.linstor.endpoint }}
{{- .Values.linstor.endpoint }}
{{- else }}
{{- $piraeus := include "linstor-scheduler.linstorEndpointFromCRD" . }}
{{- if $piraeus }}
{{- $piraeus }}
{{- else }}
{{- fail "Please specify linstor.endpoint, no default URL could be determined" }}
{{- end }}
{{- end }}
{{- end }}

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{{- if .Values.admission.enabled }}
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
app.kubernetes.io/component: admission
spec:
replicas: {{ .Values.admission.replicaCount }}
selector:
matchLabels:
{{- include "linstor-scheduler.selectorLabels" . | nindent 6 }}
app.kubernetes.io/component: admission
template:
metadata:
{{- with .Values.podAnnotations }}
annotations:
{{- toYaml . | nindent 8 }}
{{- end }}
labels:
{{- include "linstor-scheduler.selectorLabels" . | nindent 8 }}
app.kubernetes.io/component: admission
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccountName: {{ include "linstor-scheduler.serviceAccountName" . }}
securityContext:
runAsNonRoot: true
runAsUser: 1000
runAsGroup: 1000
fsGroup: 1000
containers:
- name: linstor-scheduler-admission
image: {{ .Values.extender.image.repository }}:{{ .Values.extender.image.tag | default .Chart.AppVersion }}
imagePullPolicy: {{ .Values.extender.image.pullPolicy }}
command: ["/linstor-scheduler-admission"]
args:
- -scheduler={{ include "linstor-scheduler.fullname" . }}
- -tls-cert-file=/etc/webhook/certs/tls.crt
- -tls-key-file=/etc/webhook/certs/tls.key
securityContext:
allowPrivilegeEscalation: false
capabilities:
drop:
- ALL
readOnlyRootFilesystem: true
ports:
- containerPort: 8080
name: https
protocol: TCP
env:
- name: LS_CONTROLLERS
value: {{ include "linstor-scheduler.linstorEndpoint" . }}
{{- if include "linstor-scheduler.linstorClientSecretName" . }}
- name: LS_USER_CERTIFICATE
valueFrom:
secretKeyRef:
name: {{ include "linstor-scheduler.linstorClientSecretName" . }}
key: tls.crt
- name: LS_USER_KEY
valueFrom:
secretKeyRef:
name: {{ include "linstor-scheduler.linstorClientSecretName" . }}
key: tls.key
- name: LS_ROOT_CA
valueFrom:
secretKeyRef:
name: {{ include "linstor-scheduler.linstorClientSecretName" . }}
key: ca.crt
{{- end }}
volumeMounts:
- name: webhook-certs
mountPath: /etc/webhook/certs
readOnly: true
resources:
{{- toYaml .Values.admission.resources | nindent 12 }}
volumes:
- name: webhook-certs
secret:
secretName: {{ include "linstor-scheduler.fullname" . }}-admission-tls
defaultMode: 0400
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- end }}

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packages/system/linstor-scheduler/charts/linstor-scheduler/templates/admission-service.yaml Normal file
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{{- if .Values.admission.enabled }}
---
apiVersion: v1
kind: Service
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
app.kubernetes.io/component: admission
spec:
type: ClusterIP
ports:
- port: 443
targetPort: 8080
protocol: TCP
name: https
selector:
{{- include "linstor-scheduler.selectorLabels" . | nindent 4 }}
app.kubernetes.io/component: admission
{{- end }}

56
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{{- if .Values.admission.enabled }}
---
apiVersion: cert-manager.io/v1
kind: Issuer
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission-selfsigned
namespace: {{ .Release.Namespace }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
selfSigned: {}
---
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission-root-ca
namespace: {{ .Release.Namespace }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
secretName: {{ include "linstor-scheduler.fullname" . }}-admission-root-ca
duration: 43800h # 5 years
commonName: {{ include "linstor-scheduler.fullname" . }}-admission-root-ca
issuerRef:
name: {{ include "linstor-scheduler.fullname" . }}-admission-selfsigned
isCA: true
---
apiVersion: cert-manager.io/v1
kind: Issuer
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission-ca-issuer
namespace: {{ .Release.Namespace }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
ca:
secretName: {{ include "linstor-scheduler.fullname" . }}-admission-root-ca
---
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission-cert
namespace: {{ .Release.Namespace }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
secretName: {{ include "linstor-scheduler.fullname" . }}-admission-tls
duration: 8760h # 1 year
renewBefore: 24h
issuerRef:
name: {{ include "linstor-scheduler.fullname" . }}-admission-ca-issuer
commonName: {{ include "linstor-scheduler.fullname" . }}-admission
dnsNames:
- {{ include "linstor-scheduler.fullname" . }}-admission
- {{ include "linstor-scheduler.fullname" . }}-admission.{{ .Release.Namespace }}.svc
{{- end }}

46
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---
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ include "linstor-scheduler.fullname" . }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
data:
{{- if semverCompare ">= 1.22-0" (include "linstor-scheduler.kubeVersion" .) }}
scheduler-config.yaml: |-
{{- if semverCompare ">= 1.25-0" (include "linstor-scheduler.kubeVersion" .) }}
apiVersion: kubescheduler.config.k8s.io/v1
{{- else if semverCompare ">= 1.23-0" (include "linstor-scheduler.kubeVersion" .) }}
apiVersion: kubescheduler.config.k8s.io/v1beta3
{{- else }}
apiVersion: kubescheduler.config.k8s.io/v1beta2
{{- end }}
kind: KubeSchedulerConfiguration
profiles:
- schedulerName: {{ include "linstor-scheduler.fullname" . }}
extenders:
- urlPrefix: http://localhost:8099
filterVerb: filter
prioritizeVerb: prioritize
weight: 5
enableHTTPS: false
httpTimeout: 10s
nodeCacheCapable: false
{{- else }}
policy.cfg: |-
{
"kind": "Policy",
"apiVersion": "v1",
"extenders": [
{
"urlPrefix": "http://localhost:8099",
"apiVersion": "v1beta1",
"filterVerb": "filter",
"prioritizeVerb": "prioritize",
"weight": 5,
"enableHttps": false,
"nodeCacheCapable": false
}
]
}
{{- end }}

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---
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "linstor-scheduler.fullname" . }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
{{- if not .Values.autoscaling.enabled }}
replicas: {{ .Values.replicaCount }}
{{- end }}
selector:
matchLabels:
{{- include "linstor-scheduler.selectorLabels" . | nindent 6 }}
template:
metadata:
{{- with .Values.podAnnotations }}
annotations:
{{- toYaml . | nindent 8 }}
{{- end }}
labels:
{{- include "linstor-scheduler.selectorLabels" . | nindent 8 }}
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccountName: {{ include "linstor-scheduler.serviceAccountName" . }}
securityContext:
{{- toYaml .Values.podSecurityContext | nindent 8 }}
containers:
- name: kube-scheduler
image: "{{ .Values.scheduler.image.repository }}:{{ .Values.scheduler.image.tag | default .Capabilities.KubeVersion.Version }}"
securityContext:
{{- toYaml .Values.scheduler.securityContext | nindent 12 }}
command:
- kube-scheduler
{{- if semverCompare ">= 1.22-0" (include "linstor-scheduler.kubeVersion" .) }}
- --config=/etc/kubernetes/scheduler-config.yaml
{{- else }}
- --scheduler-name={{ include "linstor-scheduler.fullname" . }}
- --policy-configmap={{ include "linstor-scheduler.fullname" . }}
- --policy-configmap-namespace=$(NAMESPACE)
{{- end }}
- --leader-elect=true
- --leader-elect-resource-lock=leases
- --leader-elect-resource-name={{ include "linstor-scheduler.fullname" . }}
- --leader-elect-resource-namespace=$(NAMESPACE)
{{- if .Values.scheduler.args }}
{{- toYaml .Values.scheduler.args | nindent 12 }}
{{- end }}
env:
- name: NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
imagePullPolicy: {{ .Values.scheduler.image.pullPolicy }}
startupProbe:
httpGet:
path: /healthz
port: 10259
scheme: HTTPS
livenessProbe:
httpGet:
path: /healthz
port: 10259
scheme: HTTPS
readinessProbe:
httpGet:
path: /healthz
port: 10259
scheme: HTTPS
{{- if semverCompare ">= 1.22-0" (include "linstor-scheduler.kubeVersion" .) }}
volumeMounts:
- mountPath: /etc/kubernetes
name: scheduler-config
{{- end }}
resources:
{{- toYaml .Values.scheduler.resources | nindent 12 }}
- name: linstor-scheduler-extender
image: {{ .Values.extender.image.repository }}:{{ .Values.extender.image.tag | default .Chart.AppVersion }}
resources:
{{- toYaml .Values.extender.resources | nindent 12 }}
securityContext:
{{- toYaml .Values.extender.securityContext | nindent 12 }}
imagePullPolicy: {{ .Values.extender.image.pullPolicy }}
args:
- --verbose=true
env:
- name: LS_CONTROLLERS
value: {{ include "linstor-scheduler.linstorEndpoint" . }}
{{- if include "linstor-scheduler.linstorClientSecretName" . }}
- name: LS_USER_CERTIFICATE
valueFrom:
secretKeyRef:
name: {{ include "linstor-scheduler.linstorClientSecretName" . }}
key: tls.crt
- name: LS_USER_KEY
valueFrom:
secretKeyRef:
name: {{ include "linstor-scheduler.linstorClientSecretName" . }}
key: tls.key
- name: LS_ROOT_CA
valueFrom:
secretKeyRef:
name: {{ include "linstor-scheduler.linstorClientSecretName" . }}
key: ca.crt
{{- end }}
{{- if semverCompare ">= 1.22-0" .Capabilities.KubeVersion.Version }}
volumes:
- configMap:
name: {{ include "linstor-scheduler.fullname" . }}
name: scheduler-config
{{- end }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}

32
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{{- if .Values.autoscaling.enabled }}
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: {{ include "linstor-scheduler.fullname" . }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: {{ include "linstor-scheduler.fullname" . }}
minReplicas: {{ .Values.autoscaling.minReplicas }}
maxReplicas: {{ .Values.autoscaling.maxReplicas }}
metrics:
{{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
{{- end }}
{{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
{{- end }}
{{- end }}

32
packages/system/linstor-scheduler/charts/linstor-scheduler/templates/mutatingwebhookconfiguration.yaml Normal file
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{{- if .Values.admission.enabled }}
---
apiVersion: admissionregistration.k8s.io/v1
kind: MutatingWebhookConfiguration
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission
annotations:
cert-manager.io/inject-ca-from: {{ .Release.Namespace }}/{{ include "linstor-scheduler.fullname" . }}-admission-cert
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
webhooks:
- name: linstor-scheduler-admission.linbit.com
admissionReviewVersions: ["v1", "v1beta1"]
sideEffects: None
failurePolicy: {{ .Values.admission.failurePolicy }}
clientConfig:
service:
name: {{ include "linstor-scheduler.fullname" . }}-admission
namespace: {{ .Release.Namespace }}
path: /mutate
port: 443
rules:
- operations: ["CREATE"]
apiGroups: [""]
apiVersions: ["v1"]
resources: ["pods"]
scope: "*"
{{- with .Values.admission.namespaceSelector }}
namespaceSelector:
{{- toYaml . | nindent 6 }}
{{- end }}
{{- end }}

18
packages/system/linstor-scheduler/charts/linstor-scheduler/templates/poddisruptionbudget.yaml Normal file
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{{- if .Values.podDisruptionBudget.enabled -}}
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: {{ include "linstor-scheduler.fullname" . }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
spec:
selector:
matchLabels:
{{- include "linstor-scheduler.selectorLabels" . | nindent 6 }}
{{- if .Values.podDisruptionBudget.minAvailable }}
minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
{{- end }}
{{- if .Values.podDisruptionBudget.maxUnavailable }}
maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
{{- end }}
{{- end -}}

108
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{{- if .Values.rbac.create }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: {{ include "linstor-scheduler.fullname" . }}
namespace: {{ .Release.Namespace }}
rules:
- apiGroups:
- coordination.k8s.io
resources:
- leases
verbs:
- create
- get
- update
{{- if semverCompare "< 1.22-0" (include "linstor-scheduler.kubeVersion" .) }}
- apiGroups:
- ""
resources:
- configmaps
verbs:
- get
- list
- watch
{{- end }}
{{- if .Values.admission.enabled }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission
rules:
- apiGroups: [""]
resources: ["pods", "persistentvolumeclaims", "persistentvolumes"]
verbs: ["get"]
- apiGroups: ["storage.k8s.io"]
resources: ["storageclasses"]
verbs: ["get"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: {{ include "linstor-scheduler.fullname" . }}-admission
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: {{ include "linstor-scheduler.fullname" . }}-admission
subjects:
- kind: ServiceAccount
name: {{ include "linstor-scheduler.serviceAccountName" . }}
namespace: {{ .Release.Namespace }}
{{- end }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: {{ include "linstor-scheduler.fullname" . | trunc 57 }}-as-ks
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:kube-scheduler
subjects:
- kind: ServiceAccount
name: {{ include "linstor-scheduler.serviceAccountName" . }}
namespace: {{ .Release.Namespace }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: {{ include "linstor-scheduler.fullname" . | trunc 57 }}-as-vs
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:volume-scheduler
subjects:
- kind: ServiceAccount
name: {{ include "linstor-scheduler.serviceAccountName" . }}
namespace: {{ .Release.Namespace }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: {{ include "linstor-scheduler.fullname" . }}
namespace: {{ .Release.Namespace }}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: {{ include "linstor-scheduler.fullname" . }}
subjects:
- kind: ServiceAccount
name: {{ include "linstor-scheduler.serviceAccountName" . }}
namespace: {{ .Release.Namespace }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: {{ include "linstor-scheduler.fullname" . | trunc 58 }}-auth
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: extension-apiserver-authentication-reader
subjects:
- kind: ServiceAccount
name: {{ include "linstor-scheduler.serviceAccountName" . }}
namespace: {{ .Release.Namespace }}
{{- end }}

12
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{{- if .Values.serviceAccount.create -}}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ include "linstor-scheduler.serviceAccountName" . }}
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
{{- with .Values.serviceAccount.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
{{- end }}

16
packages/system/linstor-scheduler/charts/linstor-scheduler/templates/tests/test-scheduler.yaml Normal file
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apiVersion: v1
kind: Pod
metadata:
name: "{{ include "linstor-scheduler.fullname" . | trunc 49 }}-test-schedule"
labels:
{{- include "linstor-scheduler.labels" . | nindent 4 }}
annotations:
"helm.sh/hook": test
spec:
# Smoke test: just test the scheduler without volumes
schedulerName: {{ include "linstor-scheduler.fullname" . }}
containers:
- name: wget
image: busybox
command: []
restartPolicy: Never

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replicaCount: 1
linstor:
endpoint: ""
clientSecret: ""
scheduler:
args: []
image:
repository: registry.k8s.io/kube-scheduler
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the kubernetes release
tag: ""
# Overrides which config is written. The default is determined by the current Kubernetes version
compatibleKubernetesRelease: ""
securityContext:
capabilities:
drop:
- ALL
readOnlyRootFilesystem: true
runAsNonRoot: true
runAsUser: 1000
resources: {}
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
extender:
image:
repository: quay.io/piraeusdatastore/linstor-scheduler-extender
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the app version
tag: ""
securityContext:
capabilities:
drop:
- ALL
readOnlyRootFilesystem: true
runAsNonRoot: true
runAsUser: 1000
resources: {}
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
imagePullSecrets: []
nameOverride: ""
fullnameOverride: ""
serviceAccount:
create: true
annotations: {}
name: ""
rbac:
create: true
podAnnotations: {}
podSecurityContext: {}
# fsGroup: 2000
autoscaling:
enabled: false
minReplicas: 1
maxReplicas: 3
targetCPUUtilizationPercentage: 80
# targetMemoryUtilizationPercentage: 80
podDisruptionBudget:
enabled: true
minAvailable: 1
# maxUnavailable: 1
nodeSelector: {}
tolerations: []
affinity: {}
admission:
enabled: false
replicaCount: 2
failurePolicy: Ignore
namespaceSelector: {}
# matchExpressions:
# - key: kubernetes.io/metadata.name
# operator: NotIn
# values:
# - kube-system
resources: {}
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 10m
# memory: 64Mi

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linstor-scheduler:
fullnameOverride: linstor-scheduler
linstor:
endpoint: "https://linstor-controller.cozy-linstor.svc:3371"
clientSecret: "linstor-client-tls"
admission:
enabled: true