helm/dbaas/templates/statefulset.yaml

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#   Copyright (c) 2019 AT&T Intellectual Property.                             #
#   Copyright (c) 2019 Nokia.                                                  #
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#   Licensed under the Apache License, Version 2.0 (the "License");            #
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#       http://www.apache.org/licenses/LICENSE-2.0                             #
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#   Unless required by applicable law or agreed to in writing, software        #
#   distributed under the License is distributed on an "AS IS" BASIS,          #
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#   See the License for the specific language governing permissions and        #
#   limitations under the License.                                             #
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{{- $ctx := dict "ctx" . "defaultregistry" .Values.dbaas.image.registry }}
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "common.statefulsetname.dbaas" . }}-server
  namespace: {{ include "common.namespace.platform" . }}
  labels:
    app: {{ include "common.namespace.platform" . }}-{{ include "common.name.dbaas" . }}
    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
spec:
  selector:
    matchLabels:
      app: {{ include "common.namespace.platform" . }}-{{ include "common.name.dbaas" . }}
      release: {{ .Release.Name }}
  serviceName: {{ template "common.servicename.dbaas.tcp" . }}
{{- if $.Values.dbaas.enableHighAvailability }}
  replicas: {{ .Values.dbaas.haReplicas }}
{{- else }}
  replicas: {{ .Values.dbaas.saReplicas }}
{{- end }}
  podManagementPolicy: OrderedReady
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: {{ include "common.namespace.platform" . }}-{{ include "common.name.dbaas" . }}
        release: {{ .Release.Name }}
    spec:
{{- if $.Values.dbaas.enablePodAntiAffinity }}
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchLabels:
                  app: {{ include "common.namespace.platform" . }}-{{ include "common.name.dbaas" . }}
                  release: {{ .Release.Name }}
              topologyKey: kubernetes.io/hostname
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 100
              podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app: {{ include "common.namespace.platform" . }}-{{ include "common.name.dbaas" . }}
                    release: {{ .Release.Name }}
                topologyKey: topology.kubernetes.io/zone
{{- end }}
      imagePullSecrets:
        {{- $ctx := dict "ctx" . "defaultregistry" .Values.dbaas.image.registry }}
        - name: {{ include "common.dockerregistry.credential" $ctx }}
      terminationGracePeriodSeconds: {{ .Values.dbaas.terminationGracePeriodSeconds }}
{{- if $.Values.dbaas.enableHighAvailability }}
      initContainers:
      - name: config-init
        image: {{ include "common.dockerregistry.url" $ctx }}/{{ .Values.dbaas.image.name }}:{{ .Values.dbaas.image.tag }}
        imagePullPolicy: {{ include "common.dockerregistry.pullpolicy" $ctx  }}
        command:
        - sh
        args:
        - /readonly-config/init.sh
        env:
        - name: ANNOUNCE_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        volumeMounts:
        - name: config
          mountPath: /readonly-config
          readOnly: true
        - name: data
          mountPath: /data
{{- end }}
      containers:
      - name: {{ include "common.containername.dbaas" . }}-redis
        image: {{ include "common.dockerregistry.url" $ctx }}/{{ .Values.dbaas.image.name }}:{{ .Values.dbaas.image.tag }}
        imagePullPolicy: {{ include "common.dockerregistry.pullpolicy" $ctx  }}
        command:
        - redis-server
        args:
{{- if $.Values.dbaas.enableHighAvailability }}
        - /data/conf/redis.conf
{{- else }}
        - /data/redis.conf
{{- end }}
        livenessProbe:
          exec:
            command: 
            - /bin/sh
            - -c
            - timeout -t {{ .Values.dbaas.probeTimeout }} redis-cli -p {{ include "common.serviceport.dbaas.redis" . }} ping
          initialDelaySeconds: 15
          periodSeconds: 5
        readinessProbe:
          exec:
            command: 
            - /bin/sh
            - -c
            - timeout -t {{ .Values.dbaas.probeTimeout }} redis-cli -p {{ include "common.serviceport.dbaas.redis" . }} ping
          initialDelaySeconds: 15
          periodSeconds: 5
        ports:
        - name: redis
          containerPort: {{ include "common.serviceport.dbaas.redis" . }}
        volumeMounts:
        - mountPath: /data
{{- if $.Values.dbaas.enableHighAvailability }}
          name: data
      - name: {{ include "common.containername.dbaas" . }}-sentinel
        image: {{ include "common.dockerregistry.url" $ctx }}/{{ .Values.dbaas.image.name }}:{{ .Values.dbaas.image.tag }}
        imagePullPolicy: {{ include "common.dockerregistry.pullpolicy" $ctx  }}
        command:
          - redis-server
        args:
          - /data/conf/sentinel.conf
          - --sentinel
        livenessProbe:
          exec:
            command: 
            - /bin/sh
            - -c
            - timeout -t {{ .Values.dbaas.probeTimeout }} redis-cli -p {{ include "common.serviceport.dbaas.redis" . }} ping
          initialDelaySeconds: 15
          periodSeconds: 5
        readinessProbe:
          exec:
            command: 
            - /bin/sh
            - -c
            - timeout -t {{ .Values.dbaas.probeTimeout }} redis-cli -p {{ include "common.serviceport.dbaas.redis" . }} ping
          initialDelaySeconds: 15
          periodSeconds: 5
        ports:
          - name: sentinel
            containerPort: {{ include "common.serviceport.dbaas.sentinel" . }}
        volumeMounts:
        - mountPath: /data
          name: data
{{- else }}
          name: config
{{- end }}
      volumes:
      - name: config
        configMap:
          name: {{ template "common.configmapname.dbaas" . }}-config
{{- if $.Values.dbaas.enableHighAvailability }}
      - name: data
        emptyDir: {}
{{- end }}