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statefulset.yaml
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statefulset.yaml
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{{- /* Generate domain name for first zero in cluster */}}
{{- define "peer_zero" -}}
{{- $zeroFullName := include "dgraph.zero.fullname" . -}}
{{- /* Append domain suffix if domain is used */}}
{{- $domainSuffix := "" -}}
{{- if .Values.global.domain -}}
{{- $domainSuffix = printf ".%s" .Values.global.domain -}}
{{- end -}}
{{- printf "%s-%d.%s-headless.${POD_NAMESPACE}.svc%s:5080" $zeroFullName 0 $zeroFullName $domainSuffix -}}
{{- end -}}
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: "{{ template "dgraph.zero.fullname" . }}"
labels:
app: {{ template "dgraph.name" . }}
chart: {{ template "dgraph.chart" . }}
component: {{ .Values.zero.name }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
serviceName: {{ template "dgraph.zero.fullname" . }}-headless
replicas: {{ .Values.zero.replicaCount }}
podManagementPolicy: {{ .Values.zero.podManagementPolicy | quote }}
updateStrategy:
type: {{ .Values.zero.updateStrategy | quote }}
{{- if (eq "Recreate" .Values.zero.updateStrategy) }}
rollingUpdate: null
{{- else if .Values.zero.rollingUpdatePartition }}
rollingUpdate:
partition: {{ .Values.zero.rollingUpdatePartition }}
{{- end }}
selector:
matchLabels:
app: {{ template "dgraph.name" . }}
chart: {{ template "dgraph.chart" . }}
release: {{ .Release.Name }}
component: {{ .Values.zero.name }}
template:
metadata:
name: {{ template "dgraph.zero.fullname" . }}
{{- if .Values.zero.metrics.enabled }}
annotations:
prometheus.io/path: /debug/prometheus_metrics
prometheus.io/port: "6080"
prometheus.io/scrape: "true"
{{- end }}
labels:
app: {{ template "dgraph.name" . }}
chart: {{ template "dgraph.chart" . }}
release: {{ .Release.Name }}
component: {{ .Values.zero.name }}
spec:
{{- if or (eq .Values.zero.antiAffinity "hard") (eq .Values.zero.antiAffinity "soft") .Values.zero.nodeAffinity }}
affinity:
{{- end }}
{{- if eq .Values.zero.antiAffinity "hard" }}
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: component
operator: In
values:
- {{ .Values.zero.name }}
topologyKey: {{ .Values.zero.podAntiAffinitytopologyKey }}
{{- else if eq .Values.zero.antiAffinity "soft" }}
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
podAffinityTerm:
labelSelector:
matchExpressions:
- key: component
operator: In
values:
- {{ .Values.zero.name }}
topologyKey: {{ .Values.zero.podAntiAffinitytopologyKey }}
{{- end }}
{{- with .Values.zero.nodeAffinity }}
nodeAffinity:
{{ toYaml . | indent 10 }}
{{- end }}
{{- include "dgraph.imagePullSecrets" . | indent 6 }}
{{- if .Values.zero.securityContext.enabled }}
securityContext:
fsGroup: {{ .Values.zero.securityContext.fsGroup }}
runAsUser: {{ .Values.zero.securityContext.runAsUser }}
{{- end }}
{{- if .Values.zero.nodeSelector }}
nodeSelector:
{{ toYaml .Values.zero.nodeSelector | indent 8 }}
{{- end }}
{{- if .Values.zero.tolerations }}
tolerations:
{{ toYaml .Values.zero.tolerations | indent 8 }}
{{- end }}
containers:
- name: {{ template "dgraph.zero.fullname" . }}
image: {{ template "dgraph.image" . }}
ports:
- containerPort: 5080
name: grpc-zero
- containerPort: 6080
name: http-zero
imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
env:
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
{{- if .Values.zero.configFile }}
- name: DGRAPH_ZERO_CONFIG
value: /dgraph/config/{{ first (keys .Values.zero.configFile | uniq | sortAlpha) }}
{{- end }}
{{- with .Values.zero.extraEnvs }}
{{- toYaml . | nindent 10 }}
{{- end }}
command:
- bash
- "-c"
- |
set -ex
[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
ordinal=${BASH_REMATCH[1]}
idx=$(($ordinal + 1))
if [[ $ordinal -eq 0 ]]; then
exec dgraph zero --my=$(hostname -f | awk '{gsub(/\.$/,""); print $0}'):5080 --idx $idx --replicas {{ .Values.zero.shardReplicaCount }} {{ .Values.zero.extraFlags }}
else
exec dgraph zero --my=$(hostname -f | awk '{gsub(/\.$/,""); print $0}'):5080 --peer {{ template "peer_zero" . }} --idx $idx --replicas {{ .Values.zero.shardReplicaCount }} {{ .Values.zero.extraFlags }}
fi
resources:
{{ toYaml .Values.zero.resources | indent 10 }}
{{- if .Values.zero.startupProbe.enabled }}
startupProbe:
httpGet:
port: {{ .Values.zero.startupProbe.port }}
path: {{ .Values.zero.startupProbe.path }}
periodSeconds: {{ .Values.zero.startupProbe.periodSeconds }}
timeoutSeconds: {{ .Values.zero.startupProbe.timeoutSeconds }}
successThreshold: {{ .Values.zero.startupProbe.successThreshold }}
failureThreshold: {{ .Values.zero.startupProbe.failureThreshold }}
{{- else if .Values.zero.customStartupProbe }}
startupProbe: {{- toYaml .Values.zero.customStartupProbe | nindent 10 }}
{{- end }}
{{- if .Values.zero.livenessProbe.enabled }}
livenessProbe:
httpGet:
port: {{ .Values.zero.livenessProbe.port }}
path: {{ .Values.zero.livenessProbe.path }}
initialDelaySeconds: {{ .Values.zero.livenessProbe.initialDelaySeconds }}
periodSeconds: {{ .Values.zero.livenessProbe.periodSeconds }}
timeoutSeconds: {{ .Values.zero.livenessProbe.timeoutSeconds }}
successThreshold: {{ .Values.zero.livenessProbe.successThreshold }}
failureThreshold: {{ .Values.zero.livenessProbe.failureThreshold }}
{{- else if .Values.zero.customLivenessProbe }}
livenessProbe: {{- toYaml .Values.zero.customLivenessProbe | nindent 10 }}
{{- end }}
{{- if .Values.zero.readinessProbe.enabled }}
readinessProbe:
httpGet:
port: {{ .Values.zero.readinessProbe.port }}
path: {{ .Values.zero.readinessProbe.path }}
initialDelaySeconds: {{ .Values.zero.readinessProbe.initialDelaySeconds }}
periodSeconds: {{ .Values.zero.readinessProbe.periodSeconds }}
timeoutSeconds: {{ .Values.zero.readinessProbe.timeoutSeconds }}
successThreshold: {{ .Values.zero.readinessProbe.successThreshold }}
failureThreshold: {{ .Values.zero.readinessProbe.failureThreshold }}
{{- else if .Values.zero.customReadinessProbe }}
readinessProbe: {{- toYaml .Values.zero.customReadinessProbe | nindent 10 }}
{{- end }}
volumeMounts:
{{- if .Values.zero.persistence.enabled }}
- name: datadir
mountPath: /dgraph
{{- end }}
{{- if .Values.zero.configFile }}
- name: config-volume
mountPath: /dgraph/config
{{- end }}
{{- if .Values.zero.tls.enabled }}
- name: tls-volume
mountPath: /dgraph/tls
{{- end }}
terminationGracePeriodSeconds: {{ .Values.zero.terminationGracePeriodSeconds }}
volumes:
- name: datadir
persistentVolumeClaim:
claimName: datadir
{{- if .Values.zero.configFile }}
- name: config-volume
configMap:
name: {{ template "dgraph.zero.fullname" . }}-config
{{- end }}
{{- if .Values.zero.tls.enabled }}
- name: tls-volume
secret:
secretName: {{ template "dgraph.zero.fullname" . }}-tls-secret
{{- end }}
{{- if .Values.zero.persistence.enabled }}
volumeClaimTemplates:
- metadata:
name: datadir
annotations:
{{- range $key, $value := .Values.zero.persistence.annotations }}
{{ $key }}: {{ $value }}
{{- end }}
volume.alpha.kubernetes.io/storage-class: anything
spec:
accessModes:
{{- range .Values.zero.persistence.accessModes }}
- {{ . | quote }}
{{- end }}
resources:
requests:
storage: {{ .Values.zero.persistence.size | quote }}
{{- if .Values.zero.persistence.storageClass }}
{{- if (eq "-" .Values.zero.persistence.storageClass) }}
storageClassName: ""
{{- else }}
storageClassName: {{ .Values.zero.persistence.storageClass | quote }}
{{- end -}}
{{- end -}}
{{- else }}
- name: datadir
emptyDir: {}
{{- end }}